1103:
1317:) for the duration of the assignment (an hour, a morning patrol or a given short period allocated to the assignment). The advantage being that each of the end users may attach themselves to any given terminal, and group for short durations without requiring any major reconfiguration by means of radio software programming tools. Similarly, the aggression feature functions, but with a higher tone frequency (880 Hz), and with a quicker repetitious nature, so to highlight the urgency of the alert.
176:-mode operation (TMO) using switching and management infrastructure (SwMI) made of TETRA base stations (TBS). As well as allowing direct communications in situations where network coverage is not available, DMO also includes the possibility of using a sequence of one or more TETRA terminals as relays. This functionality is called DMO gateway (from DMO to TMO) or DMO repeater (from DMO to DMO). In emergency situations this feature allows direct communications underground or in areas of bad coverage.
477:, which are essentially a repetition of the data in the main carrier's modulation, are filtered off with a sharp filter so that unnecessary spectrum is not used up. This results in an amplitude modulation and is why TETRA requires linear amplifiers. The resulting ratio of peak to mean (RMS) power is 3.65 dB. If non-linear (or not-linear enough) amplifiers are used, the sidebands re-appear and cause interference on adjacent channels. Commonly used techniques for achieving the necessary
534:
231:
440:
and one timeslot or more. These rates are ostensibly faster than the competing technologies DMR, dPMR, and P25 are capable of. Latest version of standard supports 115.2 kbit/s in 25 kHz or up to 691.2 kbit/s in an expanded 150 kHz channel. To overcome the limitations many software vendors have begun to consider hybrid solutions where TETRA is used for critical signalling while large data synchronization and transfer of images and video is done over 3G /
1075:
970:
945:
1090:). The serving cell becomes relinquishable when the following occurs: the C1 of the serving cell is below the value defined in the radio network parameter cell reselection parameters, fast reselect threshold, for a period of 5 seconds, and the C1 or C2 of a neighbour cell exceeds the C1 of the serving cell by the value defined in the radio network parameter cell reselection parameters, fast reselect hysteresis, for a period of 5 seconds.
1025:. The serving cell becomes improvable when the following occurs: the C1 of the serving cell is below the value defined in the radio network parameter cell reselection parameters, slow reselect threshold for a period of 5 seconds, and the C1 or C2 of a neighbour cell exceeds the C1 of the serving cell by the value defined in the radio network parameter cell reselection parameters, slow reselect hysteresis for a period of 5 seconds.
1014:
1034:
517:(continuous mode). Although the system uses 18 frames per second only 17 of these are used for traffic channels, with the 18th frame reserved for signalling, Short Data Service messages (like SMS in GSM) or synchronisation. The frame structure in TETRA (17.65 frames per second), consists of 18,000 symbols/s; 255 symbols/slot; 4 slots/frame, and is the cause of the
1375:
from 25 kHz to 150 kHz. Initial implementations of TEDS will be in the existing TETRA radio spectrum, and will likely employ 50 kHz channel bandwidths as this enables an equivalent coverage footprint for voice and TEDS services. TEDS performance is optimised for wideband data rates, wide area coverage and
1338:, and may communicate, in the group, or into a dedicated server to which the service acquisition requests are received, preprocessed, and ultimately dispatched though the TETRA core network. This simplifies the reconfiguration or recycling configuration process allowing flexibility on short assignments.
4063:
911: Operation started in 2014 in Santo
Domingo, with expansions in 2015. In 2016, TETRA trunking radio expanded to Haina and San Cristobal, cities in the southwest of Santo Domingo. In 2017, the service expansion of 911 services using TETRA expanded to the north of the country, to cover large cities
1350:
keys for the fraud and aggression quick keys respectively. For the fraud and aggression tones, it is also recommend to use 440 Hz slow repeating tone (blank space 500 milli-seconds) and 880 Hz fast repeating tone (blank space 250 milliseconds) respectively. The tone options are as follows:
484:
The base stations normally transmit continuously and (simultaneously) receive continuously from various mobiles on different carrier frequencies; hence the TETRA system is a frequency-division duplex (FDD) system. TETRA also uses FDMA/TDMA (see above) like GSM. The mobiles normally only transmit on 1
1441:
P25: it is optimized for wider area coverage with low population density, and support for simulcast. however, it is limited to data support. (Phase 1 P25 radio systems operate in a 12.5 kHz analogue, digital or mixed mode, and P25 Phase II will use a 2-timeslot TDMA structure in 12.5 kHz
1048:
The following conditions must be met in order to declare a neighbour cell radio usable: The neighbour cell has a path loss parameter C1 or C2 that is, for a period of 5 seconds, greater than the fast reselect threshold plus the fast reselect threshold, and the service level provided by the neighbour
288:
TEA1 contains a secret reduction step that effectively downgrades the cryptographic strength from 80 to 32 bits, allowing anyone to break the cipher and subsequently decrypt the signal in as little as one minute using a consumer laptop. "There's no other way in which this can function than that this
2911:
An Garda
Siochana, HSE National Ambulance Service, Irish Prison Service, Irish Naval Service, Customs & Excise, civil defense (only a few units), Irish Coast Guard, mountain rescue (only a few units), Order of Malta Ambulance Corps, Irish Red Cross, St John Ambulance, National Emergency Office,
1374:
The TETRA Association, working with ETSI, developed the TEDS standard, a wideband data solution, which enhances TETRA with a much higher capacity and throughput for data. In addition to those provided by TETRA, TEDS uses a range of adaptive modulation schemes and a number of different carrier sizes
989:
The initial cell selection procedure shall ensure that the MS selects a cell in which it can reliably decode downlink data (i.e., on a main control channel/MCCH), and which has a high probability of uplink communication. The minimum conditions that shall have to be met are that C1 > 0. Access to
439:
Up to 7.2 kbit/s per timeslot, in the case of point-to-point connections, and 3.5 kbit/s per timeslot in case of IP encapsulation. Both options permit the use of between one and four timeslots. Different implementations include one of the previous connectivity capabilities, both, or none,
3457:
Tetra gear in ham radio was initially introduced by YO8TEH in 2014 in DMO (Direct Mode
Operation). Subsequently, it evolved into gateways through platforms like Zello and Teamspeak. In 2021, a part of the system was split and migrated to svxlink, along with its classic application. The first Tetra
1437:
TETRA: It is optimized for high population density areas, with spectral efficiency (4 time slots in 25 kHz: four communications channels per 25 kHz channel, an efficient use of spectrum). It is suitable for high population density areas and supports full duplex voice, data and messaging.
1341:
The parameters tab also provides a means of choosing between preselected tones to match the work group requirements for the purposes of fraud and aggression alerts. A possibility of selecting any given key available from the keypad to serve as an aggression or fraud quick key is also made possible
960:
From this illustration, these SRT and FRT triggering points are associated to the decaying radio signal strength of the respective cell carriers. The thresholds are situated so that the cell reselection procedures occur on time and assure communication continuity for on-going communication calls.
1114:
quality. That is to say, the mobile station is aware that the radio signal is decaying rapidly, and must cell reselect rapidly, before communications are terminated because of radio link failure. When the mobile station radio-signal breaches the minimum receive level, the radio is no longer in a
1254:
Service acquisition admits different authorised agents to establish communication channels between different services by calling the service identity, and without possessing the complete knowledge of the ISSI, GSSI, or any other TETRA related communication establishment numbering plan. Service
1049:
cell is higher than that of the serving cell. No successful cell reselection shall have taken place within the previous 15 seconds unless MM requests a cell reselection. The MS-MLE shall check the criterion for serving cell relinquishment as often as one neighbour cell is scanned or monitored.
2833:
Business critical, public protection & disaster relief (PPDR) communications, public utility and oil-gas companies, seaports, airports, public and private transportation companies, public and private sector security personnel, other. Data applications nationwide including SCADA, AVL, M2M.
498:(ACELP). This creates a data stream of 4.567 kbit/s. This data stream is error-protection encoded before transmission to allow correct decoding even in noisy (erroneous) channels. The data rate after coding is 7.2 kbit/s. The capacity of a single traffic slot when used 17/18 frames.
358:
During a voice call, the communications are not interrupted when moving to another network site. This is a unique feature, which dPMR networks typically provide, that allows a number of fall-back modes such as the ability for a base station to process local calls. So called 'mission critical'
952:
This first representation demonstrates where the slow reselect threshold (SRT), the fast reselect threshold (FRT), and propagation delay exceed parameters are most likely to be. These are represented in association with the decaying radio carrier as the distance increases from the TETRA
521:"amplitude modulation" at 17 Hz and is especially apparent in mobiles/portables which only transmit on one slot/4. They use the remaining three slots to switch frequency to receive a burst from the base station two slots later and then return to their transmit frequency (
272:
An in-depth review published in July 2023 by the company
Midnight Blue of the TETRA standard and encryption algorithms, the first made public in the last 20 years, has found multiple security flaws, collectively referred to as TETRA:BURST. A total of 5 flaws were filed to the
1093:
No successful cell reselection shall have taken place within the previous 15 seconds unless
Mobility Management (MM) requests a cell reselection. The MS-MLE shall check the criterion for serving cell relinquishment as often as one neighbour cell is scanned or monitored.
927:, due to the property of not propagating transmission errors. Parkinson later confirms this and explains that TEA is a stream cipher with 80-bit keys. The algorithms were later reversed and it appeared that TEA1 reduces its key strength to 32 bits. TEA1 and TEA4 provide
1312:
Status SDS provides the end user with a mechanism for generating a 440 Hz repeating tone that signals a fraud occurrence to members within the same (dynamic or static) Group Short
Subscriber Identity (GSSI) or to a specific Individual Short Subscriber Identity
3896:
Initial use for the 15th Asian Games all games venues inclusive of transportation routes for "blue light" services, later extended to cover the State of Qatar, in use since 2006, national roll out complete by 2008. Known as Qatar Secure TETRA Radio System (QSTRS).
1457:
The TETRA-system is in use by the public sector in the following countries. Only TETRA network infrastructure installations are listed. TETRA being an open standard, each of these networks can use any mix of TETRA mobile terminals from a wide range of suppliers.
2869:
Ambulance, army, Central Office for
Administrative and Electronic Public Services, Civil Defence, Hungarian Prison Service, Hungarian Customs and Finance Guard, disaster management, fire, Hungarian Secret Services, Ministry of Environment and Water, and police
372:
TETRA also provides a point-to-point function that traditional analogue emergency services radio systems did not provide. This enables users to have a one-to-one trunked 'radio' link between sets without the need for the direct involvement of a control room
3636:
Stockholm public transport: used by transport security officers for dispatch internal communications, Transport Police ("Tunnelbanepolisen") and other police forces for liaison with transport officials. Roll-out stage for train operations on underground.
4357:
In the past decade, TETRA has seen an uptick in usage in the amateur radio community. The perceived higher audio quality compared to other digital voice modes, capacity for packet data, SDS, single frequency DMO repeaters, close proximity of the
512:
The downlink (i.e., the output of the base station) is normally a continuous transmission consisting of either specific communications with mobile(s), synchronisation or other general broadcasts. All slots are usually filled with a burst even if
1246:
For dexterity, flexibility, and evolution ability, the public transportation radio engineering department, have chosen to use the open sources, Java language specification administered by Sun and the associated work groups in order to produce a
977:
The next diagram illustrates where a given TETRA radio cell initial selection. The initial cell selection is performed by procedures located in the MLE and in the MAC. When the cell selection is made, and possible registration is performed, the
3621:
Managed by the Civil
Contingencies Agency - MSB. For use by the emergency services and others in the fields of civil protection, public safety and security, emergency medical services and healthcare, road services, nuclear facilities.
923:. The TEA ciphers have different availability due to export and use restrictions. Few details are published concerning these proprietary ciphers. Riess mentions in early TETRA design documents that encryption should be done with a
4064:
as
Santiago, Puerto Plata and small villages. On August 3, 2018, service expanded to the province Peravia (West to the Capital) and on August 28, 2018, it started in the province of San Pedro de Macoris ( East to the capital).
2890:
Police, fire services, ambulances, Search and Rescue units, Red Cross, bus service (Strætó Bs.), The
Icelandic National Broadcasting Service, most utility companies, municipalities and private users such as excursion companies.
4975:
2943:
Polizia di Stato (Italian state police), Carabinieri (military police), Guardia di Finanza (financial police), Polizia Penitenziaria (prison police), and Corpo Forestale Italiano (Italian forest brigades)
1004:
The minimum receive access level information element shall indicate the minimum received signal level required at the SwMI in a cell, either the serving cell or a neighbour cell as defined in table 18.24.
4056:
911: technical and power systems support communication, operations and dispatching, service agencies communication systems (police, Public health, firefighters, traffic control authority, road support).
5589:
3451:
Amateur radio users engage in both DMO (Direct Mode Operation) and TMO (Trunked Mode Operation) modes, both within the country and globally, connecting through gateways such as Zello and SVXLink.
4932:
931:
security, and are meant for commercial use. The TEA2 cipher is restricted to European public safety organisations. The TEA3 cipher is for situations where TEA2 is suitable but not available.
1062:
The neighbour cell supports a service (that is, TETRA standard speech, packet data, or encryption) that is not supported by the serving cell and the MS requires that service to be available.
186:
TETRA provides for authentication of terminals towards infrastructure and vice versa. For protection against eavesdropping, air interface encryption and end-to-end encryption is available.
473:
As a form of phase shift keying is used to transmit data during each burst, it would seem reasonable to expect the transmit power to be constant. However it is not. This is because the
1433:
Project 25 and TETRA are utilised for the public safety Radio network and Private Sector Radio network worldwide however, it has some differences in technical features and capacities.
1309:
provides a means of virtually personalising the end user to any given radio terminal and onto TETRA network for the duration the end user conserves the terminal under his possession.
982:(MS) is said to be attached to the cell. The mobile is allowed to initially select any suitable cell that has a positive C1 value; i.e., the received signal level is greater than the
5772:
4372:
Most older (pre-2010) terminals don't cover the Region 1 amateur radio frequency range (430-440) natively, and must be modified via software with a possible impact on RF performance.
197:. It is also possible for the terminal to act as a one-to-one walkie talkie but without the normal range limitation since the call still uses the network. TETRA terminals can act as
323:
These vulnerabilities remained publicly unknown for 28 years after TETRA's publication because TETRA does not make definitions of its cryptographic algorithms public, an example of
4588:
2915:
Nationwide roll-out network complete. The fire services are planning to implement in the coming years. As of July 2011, TETRA Ireland now operates the national Paging System.
289:
is an intentional backdoor," "This constitutes a full break of the cipher, allowing for interception or manipulation of radio traffic", according to the news report posted on
5364:
4979:
421:
Serious security issues have been identified, including an intentional weakening of the TEA1 cipher, constituting a full break within a minute on consumer hardware. (See
6181:
1281:
has been produced successfully and with TETRA communication technology and assures for the public transport application requirements for the future mentioned hereafter.
365:
Gateway mode - where a single mobile with connection to the network can act as a relay for other nearby mobiles that are out of range of the infrastructure. A dedicated
4558:
1952:
4660:
295:. The deliberately weakened TEA1 flaw seems to be known in intelligence circles and is referred to in the famous 2006 Wikileaks dump of US diplomatic communications .
1873:
1840:
1809:
183:(SDS) are provided over the system's main control channel, while packet-switched data or circuit-switched data communication uses specifically assigned channels.
5505:
4061:
Metro: First line operation started in 2008. 2nd line operation started 2013. 2nd line expansion (L2B) started in 2014 and started operation on August 8, 2018.
1110:
When the FRT threshold is breached, the MS is in a situation where it is essential to relinquish (or abandon) the serving cell and obtain another of at least
4936:
4646:
2641:
Police, fire, ambulance, customs, coast guard, hospitals, Red Cross, department of Justice, utility companies, airports, ports, lifeguard service, military.
509:(whose duration is 1.02 seconds) consists of 18 frames. Hyperframes also exist, but are mostly used for providing synchronisation to encryption algorithms.
3514:
Government - ambulance and emergency services, police, healthcare facilities, utility services, St. Petersburg Authorities and the regional civil defense
397:
Network solutions are available in both reliable circuit-switched (telephone like) architectures and flat, IP architectures with soft (software) switches.
5314:
3458:
Repeater for Ham Radio use in Romania was licensed under the call sign YO8TEH-1, while the second TMO repeater was licensed under the call sign YO8Q.
3653:
Got1 is a modern IP based Tetra network used in the west parts of Sweden. Mainly in the Gothenburg region. With customers like SKF and Volvo Trucks.
1774:
1438:
but, it is generally unavailable for simulcast, VHF band - however particular vendors have introduced Simulcast and VHF into their TETRA platform..
1243:) based technology, provides the end user with the communication rights necessary to fulfil his or her work role on any short duration assignment.
993:
At mobile switch on, the mobile makes its initial cell selection of one of the base stations, which indicates the initial exchanges at activation.
3604:
Police, fire brigades, civil protection, ambulances, forest guards, water agency, gas company, road maintenance service and other public agencies
1366:
menu and the last tab within parameters describes briefly the tool kit the version and the history of the transport application tool kit to date.
1334:) destination communication number. With this pre-programmed destination number, the end-user shall liaise with the destination radio terminal or
5926:
5818:
138:
45:
2343:
5672:
501:
A single slot consists of 255 usable symbols, the remaining time is used up with synchronisation sequences and turning on/off, etc. A single
119:
6171:
4785:
1454:
At the end of 2009 there were 114 countries using TETRA systems in Europe, Middle East, Africa, Asia Pacific, Caribbean and Latin America.
5609:
5530:
2081:
5622:
4579:
331:
on a TETRA-enabled radio. The team points to a list of previously broken cryptographic systems relying on obscurity and argues that the
5647:
5022:"Motorola Media Center - Press Releases - Motorola Completes Upgrade to TETRA Digital Radio System for Hong Kong International Airport"
2775:
lines. Also used by some security guard companies, mostly securing HRTA's transport. Available for lease for various short-term uses.
4379:
Additionally, an open-source project aims to create a complete SDR-based TETRA stack, with a working DMO repeater proof of concept.
3868:
2969:
2563:
2453:
5330:|title=TETRA : Artevea Digital Limited : Digital Radio Communication |publisher=Artevea.com |date|access-date=2012-03-28}}
5253:
3333:
1052:
The following conditions will cause the MS to rate the neighbour cell to have higher service level than the current serving cell:
470:. The symbol (baud) rate is 18,000 symbols per second, and each symbol maps to 2 bits, thus resulting in 36,000 bit/s gross.
376:
Unlike cellular technologies, which connect one subscriber to one other subscriber (one-to-one), TETRA is built to do one-to-one,
4410:
3827:
3453:
Ham Tetra Romania Network Architecture was developed and published along with users map and equipment used on the YO8TEH website
1273:
Provide specific transportation application software to the end-user agents (service acquisition, fraud, and aggression control).
5137:
5552:
5119:
5065:
3648:
362:
In the absence of a network, mobiles/portables can use 'direct mode' whereby they share channels directly (walkie-talkie mode).
179:
In addition to voice and dispatch services, the TETRA system supports several types of data communication. Status messages and
5290:
4683:
3581:
3565:
312:
The authentication algorithm allows attackers to set the Derived Cypher Key (DCK) to 0, circumventing session authentication.
4883:
2992:
102:
and two-way transceiver specification. TETRA was specifically designed for use by government agencies, emergency services, (
5153:
4668:
4545:
919:
Currently 4 different ciphers are defined, TEA1 up to TEA4. These TEA ciphers should not be confused with the block cipher
274:
4267:
Being used by several Mining Operations throughout Western Australia and Queensland - Terminals only - No Infrastructure.
5987:
5982:
5919:
5811:
4250:
2285:
162:
142:
5169:
5837:
5517:
5053:
5021:
1710:
1641:
1590:
916:
ciphers. The encryption provides confidentiality (protect against eavesdropping) as well as protection of signalling.
394:
Rapid deployment (transportable) network solutions are available for disaster relief and temporary capacity provision.
3684:
2124:
NITRS Nationwide Integrated Trunk Radio System Project for Police under Ministry of Interior, Government of Pakistan
377:
5266:
1122:
below −105 dBm. Cell reselection procedures are then activated in order to find a suitable radio base station.
6176:
4303:
2206:
1867:
Integrated Communication System used by various departments under government of Delhi and Delhi police since 2010.
1740:
5041:
4638:
4470:
1324:
tab provides an essential means to the terminal end-user allowing them to pre-configure the target (preprogrammed
3958:
3721:
1678:
1625:
1571:
4609:
6166:
5912:
5804:
5734:
5078:
4445:
2225:
5493:
5875:
3942:
3298:
1045:. A neighbour cell becomes radio usable when the cell has a downlink radio connection of sufficient quality.
522:
328:
154:
169:
transfer can be used. Digital data transmission is also included in the standard though at a low data rate.
6048:
5850:
4858:
4394:
4022:
3737:
3692:
3248:
2061:
1794:
5389:
4833:
3438:
In use since 2010 for police, emergency and search and rescue agencies from Romanian border counties-wide
3422:
In use since 2008 for police, emergency and search and rescue agencies from Romanian border counties-wide
1382:
Advances in DSP technology have led to the introduction of multi-carrier transmission standards employing
1376:
3232:
2505:
1270:
Allow any given agent while in exercise, to exploit any given radio terminal without materiel constraint.
1232:
303:
4499:
5977:
5365:"Paziņojums par līgumu RPP 2016/31 "Par radiosakaru sistēmas uzturēšanu, tehnisko atbalstu un remontu""
3696:
1326:
1314:
324:
213:. Emergency buttons, provided on the terminals, enable the users to transmit emergency signals, to the
5660:
5590:"Tecnologia espanhola da Teltronic adiciona mais um estado à rede nacional TETRA implantada no Brasil"
4958:
6122:
6033:
5883:
2772:
920:
332:
243:
99:
49:
5327:
5212:
5098:
5000:
4846:
4362:
and full duplex audio in TMO are motivating arguments to experiment contacts with this technology.
5972:
5340:
3886:
3863:
3822:
3761:
3594:
3427:
2786:
2740:
2720:
2627:
2201:
2039:
1755:
1585:
1566:
1545:
1527:
1490:
193:
in which a single button push will connect the user to the users in a selected call group and/or a
3483:
Unified system of operational trunking radio (Единая Система Оперативной Транкинговой Радиосвязи)
1446:
Currently, P25 deployed to more than 53 countries and TETRA deployed to more than 114 countries.
335:
should have been followed: the system would have been safer when its structure is publicly known.
3680:
2768:
2378:
2270:
2104:
441:
369:
system isn't required in order to achieve this functionality, unlike with analogue radio systems.
5566:"Builds Tetra Network in Brazil by Dr. Cristiano Torres do Amaral from Brazilian Police Academy"
4782:
5954:
5792:
Radiocommunication objectives and requirements for Public Protection and Disaster Relief (PPDR)
4750:
2240:
1609:
1421:
1414:
1407:
1400:
1393:
35:
20:
5565:
1118:
Radio link failure: (C1 < 0). Using the suggested values, this would be satisfied with the
1065:
The cell service level indicates that the neighbour cell is less loaded than the serving cell.
432:
to meet the stringent RF specifications that allow it to exist alongside other radio services.
5626:
4216:
3015:
2458:
388:
115:
5302:
4908:
387:
Security TETRA supports terminal registration, authentication, air-interface encryption and
384:. These operational modes are directly relevant to the public safety and professional users.
351:
The much lower frequency used gives longer range, which in turn permits very high levels of
309:
The cryptographic anonymization scheme is weak and can be partially reversed to track users.
6059:
5935:
5888:
4388:
3742:
1115:
position to maintain acceptable communications for the user, and the radio link is broken.
173:
95:
53:
3913:
8:
6104:
4871:
3212:
166:
1102:
5531:"Wide Area Military Voice & Data Infrastructure Solutions based on COTS technology"
4731:
4359:
4330:
3753:
3746:
1982:
1056:
The MS subscriber class is supported on the neighbour cell but not on the serving cell.
458:
299:
5315:
Rome International Airport chooses DAMM as supplier for Mission Critical Communication
4819:
327:. The Midnight Blue team gained access to TETRA's cryptographic code by attacking the
5728:
5641:
5473:
4758:
4735:
3839:
3757:
3700:
3674:
3372:
Local TETRA Networks in use since 2000; national roll-out expected to start in 2011.
2764:
1845:
206:
359:
networks can be built with TETRA where all aspects are fail-safe/multiple-redundant.
5967:
4815:
4723:
4365:
Multiple constraints have to be noted when using TETRA for amateur radio service:
3988:
3704:
1725:
429:
285:
due to the use of publicly-broadcast network time—keystream reuse can be triggered.
281:
The Air Interface Encryption (AIE) keystream generator is vulnerable to decryption
107:
5796:
5506:
Kaliningrad biggest Power Plant chooses DAMM’s TetraFlex system for safety reasons
4701:"Cryptographic security for the new trans-European trunked radio (TETRA) standard"
4547:
All Cops Are Broadcasting: Breaking TETRA after decades in the shadows (slideshow)
3139:
Sûreté Publique (Police), Carabiniers (military police), fire brigades, ambulance
355:
coverage with a smaller number of transmitters, thus cutting infrastructure costs.
5962:
5173:
5157:
4887:
4806:
Gert Roelofsen (1999). "Cryptographic algorithms in telecommunications systems".
4789:
4307:
3992:
2636:
2633:
912:
To provide confidentiality the TETRA air interface is encrypted using one of the
5150:
3893:
Ministry of Interior, army, police, air force search and rescue, EMS (medical).
172:
TETRA Mobile Stations (MS) can communicate direct-mode operation (DMO) or using
6018:
4030:
3851:
3847:
1532:
1495:
1342:
though the transport application software tool kit. It is recommend to use the
478:
291:
248:
4727:
4700:
3683:
ambulance services, Border Force, immigration enforcement, some armed forces,
2591:
Ministry of Interior, Suez Canal Authority, Oil& GAS and commercial users
6161:
6155:
5828:
5685:
4762:
4026:
3927:
3688:
3625:
In operation, covering 99.8% of Sweden's population and 95% of its territory
3435:
Ministry of Administration and Interior (MAI) / Romanian Border Police (RBP)
3419:
Ministry of Administration and Interior (MAI) / Romanian Border Police (RBP)
2423:
2394:
2155:
997:
Refer to EN 300 392 2 16.3.1 Activation and control of underlying MLE service
924:
488:
Speech signals in TETRA are sampled at 8 kHz and then compressed with a
282:
3500:
Utility power plant - safety and security - telemetry and commercial agents
3469:
Moscow Metro (second most heavily used rapid transport system in the world)
533:
316:
In addition, the Midnight Blue team spots a "peculiarity regarding the TEA3
6127:
6117:
6112:
6065:
5781:
4018:
2255:
1896:
1814:
Mumbai Mono Rail, Mumbai Metropolitan Region Development Authority (MMRDA)
954:
381:
198:
158:
5791:
4376:
Multiple amateur DMO and TMO networks are established throughout Europe.
2810:
Utility Windfarm - Telemetry, Security and Safety Critical communications
230:
5776:
5270:
5213:"TETRA : Artevea Digital Limited : Digital Radio Communication"
5099:"TETRA : Artevea Digital Limited : Digital Radio Communication"
5001:"TETRA : Artevea Digital Limited : Digital Radio Communication"
4272:
2362:
1347:
1074:
969:
366:
5904:
3472:
Transport - rail - telemetry, safety, security, police, ambulance, fire
1577:
2008 Beijing Olympics and Paralympic Games (Hong Kong Equestrian Event)
990:
the network shall be conditional on the successful selection of a cell.
6008:
5893:
5860:
4478:
4406:
3162:
In use since November 2012 Podgorica area only. Rolling out elsewhere.
2619:
In use, in all states except Tyrol and Vorarlberg (still rolling out).
405:(formerly TETRA MoU) and the standards can be downloaded for free from
252:
214:
202:
194:
190:
131:
5748:
5706:
4956:
4681:
4014:
1925:
In use by police, Gurgaon city Since 2009. In Salem from August 2011.
141:(ETSI) standard, first version published 1995; it is mentioned by the
6094:
5194:
4617:
4556:
4326:
4073:
3876:
3599:
2791:
2611:
2308:
1695:
1550:
1513:
1386:
modulation. WiMAX, Wi-Fi and TEDS standards are part of this family.
944:
111:
1082:
The next diagram illustrates where a given TETRA radio cell becomes
1041:
The next diagram illustrates where a given TETRA radio cell becomes
1021:
The next diagram illustrates where a given TETRA radio cell becomes
6038:
6023:
5845:
5254:
DAMM supplies safe TETRA communication for DONG Energy Power Plants
4449:
4416:
4238:
4204:
4034:
3937:
3855:
2750:
Police, fire, ambulance, customs, defence forces, and border guard
2324:
2147:
In use October 2013, Phase 2 On Shore Gas Plant for Implementation
1343:
474:
123:
4283:
Aluminium Smelter - ore production - safety, security, operations
1059:
The neighbour cell is a priority cell and the serving cell is not.
1013:
6132:
6028:
6003:
5341:"TETRA system for the Riga Municipal Police / DAN Communications"
5328:
http://www.artevea.com/casestudies-detail.php?type=case&id=11
4959:"The Numbering Plan for Telecommunications Services in Hong Kong"
4847:
https://www.powertrunk.com/docs/Pros_and_Cons_of_P25_vs_TETRA.pdf
4403:, a two-way FDMA digital radio protocol from Icom and JVC Kenwood
4084:
Temco Smeltering Tasmania - mining, commercial, safety, security
4010:
3732:
3665:
3526:
3414:
3395:
3293:
3226:
3206:
3189:
3171:
3151:
3082:
3065:
3048:
3031:
3009:
2986:
2903:
2882:
2701:
2667:
2606:
2171:
2099:
2076:
2056:
2020:
2011:
Casino-Hotels: Altira (formerly Crown Macau), and City of Dreams
1992:
1948:
1789:
1673:
1604:
1236:
1033:
489:
4003:
Police, emergency services, oil and professional communications
3039:
Government; police, fire brigade, ambulance services and others
2912:
Port of Cork, Revenue Commissioners and Office of Public Works.
5865:
5066:
DAMM chosen to provide communication for GAIL pipeline in India
4314:
4291:
4258:
3932:
3905:
3669:
320:", but has yet to determine whether it constitutes a weakness.
217:, overriding any other activity taking place at the same time.
127:
103:
75:
65:
5720:
5291:
Global Tech 1 Offshore Wind farm relies on DAMM Infrastructure
2958:
Airport - security, safety, commercial, fire, customs, police
2709:
All emergency authorities, incl. police, fire, and ambulance.
485:
slot/4 and receive on 1 slot/4 (instead of 1 slot/8 for GSM).
343:
The main advantages of TETRA over other technologies (such as
6013:
5138:"Motorola to supply TETRA network for Malaysian rail project"
4523:
4500:"Guide to the R&TTE Directive 1999/5/EC (April 20, 2009)"
4006:
3843:
3835:
3303:
Police, fire, ambulance, civil defense and search and rescue
2745:
1905:
1900:
939:
494:
317:
3873:
Police, emergency services, and professional communications
3832:
Police, emergency services, and professional communications
1756:
Liaison Office of the Central People Government in the HKSAR
6054:
6043:
5855:
5610:
Rio Tinto Mining Group continues to deploy DAMM’s TetraFlex
5437:
4884:"TETRA Industry Group - TETRA around the world - Countries"
4400:
3338:
Police (PSP and GNR), fire, ambulance and civil protection
2998:
1878:
1519:
Utility - Guangzhou Electric Power Emergency Communication
1240:
406:
210:
4580:"Tetra radio users' comms may have been exposed for years"
2689:
DONG Energy Power Plants - 11 Power Plants across Denmark
402:
5686:"Tetra Ham Documents | Stichting Telekom Techniek Arnhem"
5673:
World’s largest LNG project to roll-out DAMM’s TetraFlex®
5553:
DAMM's TetraFlex® chosen for Alacer Gold Mining operation
5236:
4793:
4557:
Carlo Meijer; Wouter Bokslag; Jos Wetzels (August 2023).
3209:
until 2019 ?, Hytera AccessNet-T since 2019 ??
2825:
1817:
Mass transport - India's first monorail project - Mumbai
1658:
1383:
1351:
440 Hz, 620 Hz, 880 Hz, and 1060 Hz.
344:
4751:"Code Kept Secret for Years Reveals Its Flaw—a Backdoor"
3142:
Nationwide coverage (including indoor public buildings)
1292:) menu presents the end user with three possibilities:
901:
350–370, 380–395, 385–399.99, 410–430, 450–470, 870–921
5518:
DAMM deployed for regional network in North West Russia
5413:
4560:
All cops are broadcasting: TETRA under scrutiny (paper)
5455:
4872:
https://tandcca.com/fm_file/dubai06swancomparison-pdf/
4219:, including the Brisbane State Emergency Service Unit
3777:(Heathrow, Birmingham, Manchester, Glasgow, Aberdeen)
2728:
Police and border guard, fire, ambulance, and customs
5120:"Launch of digital trunked radio service in Malaysia"
4957:
Office of the Communications Authority (2022-09-13).
4682:
Office of the Communications Authority (2022-05-25).
3811:
Mining - safety and security critical communications
3366:
Ministry of Interior, Polish army, and Warsaw police
1369:
537:
Chart to visualize the bands used for TETRA in Europe
481:
include Cartesian loops, and adaptive predistortion.
5787:
TETRA and Critical Communications Association (TCCA)
5786:
3369:
Police, fire, public transport, airports, and army.
2190:
Transport (Manila Light Rail Transit System Line 2)
1069:
5826:
2839:70% population coverage in 2014, in use since 2002
2796:Police, fire, ambulance, customs, and coast guard.
6182:Rail transport mobile telecommunications standards
4578:
4054:Metro: railroad communication, telemetry and PLC.
2616:Police, fire, ambulance, and local train company.
1783:In use since 2004 at Mhow, Indore, Madhya Pradesh
948:RSSI SRT FRT cell limit (propagation delay exceed)
4639:"Radio Spectrum - Table of frequency allocations"
2407:Satcomm Integrated Resources LLC SatCom IRL/EADS
1775:Military College of Telecommunication Engineering
6153:
5675:. Damm.dk (2010-04-26). Retrieved on 2013-07-16.
5663:. Damm.dk (2011-03-18). Retrieved on 2013-07-16.
5612:. Damm.dk (2009-08-03). Retrieved on 2013-07-16.
5555:. Damm.dk (2012-11-05). Retrieved on 2013-07-16.
5520:. Damm.dk (2011-08-22). Retrieved on 2013-07-16.
5508:. Damm.dk (2009-10-01). Retrieved on 2013-07-16.
5496:. Damm.dk (2011-01-04). Retrieved on 2013-07-16.
5431:
5429:
5427:
5317:. Damm.dk (2009-09-14). Retrieved on 2013-07-16.
5305:. Damm.dk (2010-02-02). Retrieved on 2013-07-16.
5293:. Damm.dk (2012-08-27). Retrieved on 2013-07-16.
5256:. Damm.dk (2009-09-02). Retrieved on 2013-07-16.
5068:. Damm.dk (2011-07-12). Retrieved on 2013-07-16.
5056:. Damm.dk (2011-01-31). Retrieved on 2013-07-16.
5044:. Damm.dk (2010-08-11). Retrieved on 2013-07-16.
4397:(dPMR), an FDMA digital radio standard from ETSI
2412:Nigerian Ports Authority, Nigeria (rolling out)
2163:Implementation on Going Project Finish Dec 2013
2152:Motorola Dimetra/GA Technology and Systems Inc.
2138:Motorola Dimetra/GA Technology and Systems Inc.
5753:, Radioamatööritekniikan seura r.y., 2024-06-11
4927:
4925:
4448:. TETRA Association. 2012-03-22. Archived from
2375:Cisan International Limited/Rohill (TetraNode)
161:and 25 kHz spacing between carriers. Both
139:European Telecommunications Standards Institute
46:European Telecommunications Standards Institute
5231:
5229:
4805:
2866:EDR (acronym for Unified Digital Radiosystem)
1884:Gas pipeline - safety, telemetry and security
1834:In use by police, Trivandrum city, since 2008
1221:
209:direct connection to other TETRA Users or the
5920:
5812:
5424:
5042:1st Monorail Project in India awarded to DAMM
4714:DW Parkinson (2001-07-01). "TETRA Security".
4684:"Table of Frequency Allocations of Hong Kong"
4543:
4539:
4537:
4535:
4533:
4369:In most countries, encryption cannot be used.
3966:In operation / national roll-out in progress
2442:Oil industry / airports / security companies
1939:In use by police, Faridabad city, since 2012
4922:
4713:
3774:Use by some services at some major airports
3386:Modern IP based TETRA solution for 3 cities
3306:Nationwide rollout completed September 2015
3174:until 2019, Hytera / AccessNet-T since 2019
3042:Start building 2014, Operational since 2015
2929:Ambulance - security, safety, communication
2649:Rohde & Schwarz since 2011/ ACCESSNET-T
1963:In use since 2009 at Duri, Riau, Indonesia.
1803:The First TETRA in India, in use since 2002
1226:
157:(TDMA) with four user channels on one radio
5226:
4933:"EADS Global Website - EADS Global Website"
4230:Military, defence, comms, safety, security
4050:National Emergency and Safety System 9-1-1
3159:Police, military, fire brigades, ambulance
1428:
907:
220:
16:European standard for trunked radio systems
5927:
5913:
5819:
5805:
5303:TetraFlex for Public Safety in Lodi, Italy
4530:
3586:Mainly municipalities and public services
3267:Schiphol Group, KLM, and other businesses
1263:, interfaced into the TETRA core network.
1097:
940:Cell re-selection (or hand-over) in images
468:differential quadrature phase-shift keying
435:Data transfer is slow by modern standards.
401:Further information is available from the
5934:
4661:"National Table of Frequency Allocations"
4521:
4391:, a TDMA digital radio standard from ETSI
3400:Special Telecommunications Service (STS)
2675:Police, fire brigades, ambulance service
2655:Commercial & private security users.
2391:Dizengoff/Motorola IL (Compact-Tetra IP)
1741:Hong Kong International Terminals Limited
964:
4576:
4346:Used by University of Auckland, Westpac
3980:In operation, 600+ stationary stations.
3710:Full emergency service rollout complete
3707:, and miscellaneous emergency services.
2692:Utilities - safety, security, telemetry
2436:Briscoe Technologies / Hytera Accessnet
2184:Rohill (TetraNode) SynTech Systems Inc.
2168:Rohill (TetraNode) SynTech Systems Inc.
1850:Police and internal security and safety
1413:Connected Limited Device Configuration,
1266:In summary, the TETRA MMI aims are to:
1257:communication rights centralised service
1101:
1073:
1032:
1012:
968:
943:
532:
495:algebraic code-excited linear prediction
4517:
4515:
4513:
4511:
4509:
4179:Gorgon LNG Project, Chevron, Australia
3947:Railroad, communication and licensing.
3919:Police, emergency services operational
3341:Nationwide roll-out, in use since 2007
2778:In use, covers greater Helsinki region
1895:With PSTN call integration designed by
807:Civilian/airport/public transportation
6154:
5661:Fortescue Metals Group Ltd deploy DAMM
5646:: CS1 maint: archived copy as title (
4352:
3486:Fire, ambulance and partially, police
2926:Lombardi Ambulance Emergency Services
1933:TETRA with Automatic Dial 100 (AD100)
1919:TETRA with Automatic Dial 100 (AD100)
1828:TETRA with Automatic Dial 100 (AD100)
1420:Technology for the Wireless Industry,
1255:acquisition is administered through a
1126:Infrastructure TETRA parameters guide
143:European Radiocommunications Committee
5908:
5800:
5773:Report on the health effects of TETRA
4859:"P25 and TETRA Technology Roundtable"
4808:Information Security Technical Report
3511:St Petersburg and North West Russia.
3073:Public Transport, city of Luxembourg
1449:
1231:Any given TETRA radio terminal using
829:420.0125-421.9875, 410.0125–412.9875
821:390.0125–394.9875, 380.0125–384.9875
769:380–385, 390–395, 406.1–426, 870–876
641:TETRA frequencies in other countries
189:The common mode of operation is in a
130:version of trunked radio, similar to
5435:
4506:
3403:Police, fire, and search and rescue
3349:Lisbon International Airport (LPPT)
2974:Ventamonjaks Serviss Ltd, Ventspils
1968:Rohde & Schwarz / Accessnet - T
1957:SCADA PT. Chevron Pacific Indonesia
1908:Bangalore Metro Corporation Limited
1580:Used from July 2008 to October 2008
1000:Note 18.5.12 Minimum RX access level
720:380–385, 390–395, 406 - 410 for DMO
528:
447:
224:
6172:Mobile telecommunications standards
4360:UHF (430-440MHz) amateur radio band
4251:Queensland University of Technology
3380:Szczecin, Warsaw and Kraków police
2852:Police, Fire Services, Coast Guard
2712:Nationwide coverage (99,5%) in use
2678:Nationwide coverage (99,5%) in use
2491:Municipality, fire, and ambulance.
2359:Dizengoff/Motorola IL (Dimetra IP)
2082:Sungai Buloh–Serdang–Putrajaya line
1911:Transport, in use since March 2011
1892:THALES Portugal S A & Motorola
1399:Mobile Information Device Profile,
542:TETRA frequencies in South America
13:
4886:. Tetrahealth.info. Archived from
4834:"Walasey Components Ltd - Beijing"
4748:
3685:National Highways traffic officers
2807:Global Tech 1 Offshore Wind GmbH.
1997:Operational, Installed since 2007
1591:Hong Kong Fire Services Department
1370:TETRA Enhanced Data Service (TEDS)
1008:
747:Emergency services / armed forces
14:
6193:
5766:
5476:. Tetraforum.pl. 26 November 2010
4343:Commercial network launched 2008
3534:Police, fire brigades, ambulance
3497:Russias Kaliningrad Power Plant.
2855:Nationwide roll-out in progress.
2830:Formerly branded OTElink (2009).
1988:Jakarta State Government Network
1070:Cell relinquishable (abandonable)
934:
788:Emergency services, Public works
4911:. Railway Technology. 2011-06-15
4649:from the original on 2016-03-04.
4610:"Smartphone app/apps over TETRA"
4304:Wellington International Airport
3916:Police & Emergency Services
3615:SAAB, Cassidian, Eltel Networks
2351:Rolling out / Almost completed.
2207:Korea Electric Power Corporation
1951:, installed & maintained by
1795:Delhi Metro Rail Corporation Ltd
1626:Correctional Services Department
984:minimum receive level for access
914:TETRA Encryption Algorithm (TEA)
452:
412:
229:
5741:
5713:
5699:
5678:
5666:
5654:
5615:
5603:
5582:
5558:
5546:
5523:
5511:
5499:
5487:
5466:
5448:
5438:"Radiocommunication sur mesure"
5406:
5382:
5357:
5333:
5320:
5308:
5296:
5284:
5259:
5247:
5205:
5187:
5162:
5144:
5130:
5112:
5091:
5071:
5059:
5047:
5035:
5014:
4993:
4978:. Cassidian.com. Archived from
4968:
4950:
4901:
4876:
4865:
4851:
4840:
4826:
4799:
4775:
4742:
4707:
4693:
4675:
4653:
4591:from the original on 2023-07-26
2837:Extensive nationwide footprint,
2771:, and several bus operators on
2291:Republic of China Armed Forces
1930:Sepura & Rohde and Schwarz
1916:Sepura & Rohde and Schwarz
1679:Hong Kong International Airport
1572:Hong Kong International Airport
1204:
457:For its modulation TETRA, uses
5782:TETRA in use by radio amateurs
5237:"Entropia – Critical concepts"
4703:. June 1994. pp. 3/1–3/5.
4631:
4602:
4577:Scroxton, Alex (25 Jul 2023).
4570:
4492:
4463:
4438:
4429:
3687:, civil contingency services,
3352:Transport - Ground operations
2439:Lagos / Abuja / Port Harcourt
2226:Taiwan Railways Administration
1879:Gas Authority of India Limited
1711:Hongkong Electric Co., Limited
1279:transport application tool-kit
1249:transport application tool kit
1028:
148:
1:
6088:General Electric Mobile Radio
5079:"Gurgaon Police goes Hi-Tech"
4820:10.1016/S1363-4127(99)80004-1
4544:Midnight Blue (August 2023).
4423:
3910:Rohde & Schwarz / Sepura
3299:Norwegian Public Safety Radio
2535:City of Tshwane Municipality
2025:Forças de Segurança de Macau
1861:Secure Communication Network
338:
329:trusted execution environment
155:time-division multiple access
122:, transport services and the
94:), a European standard for a
5170:"SatCom IRL | Homepage"
4395:Digital private mobile radio
4048:Metro of Santo Domingo, and
3797:In use by IDF, country-wide
3794:Israel Defense Forces (IDF)
3537:Fully rolled out as of 2009
3180:Police, fire, and ambulance
3104:Fire brigade of city Skopje
2271:Kaohsiung Mass Rapid Transit
679:Emergency services/civilian
417:Its main disadvantages are:
92:Trans-European Trunked Radio
7:
5199:www.briscoetechnologies.com
4382:
4143:Australian Pacific Project
3253:Public transport Rotterdam
3237:Public transport Amsterdam
3217:Public transport The Hague
3156:Wireless Montenegro d.o.o.
2955:Rome International Airport
2506:Mbombela Local Municipality
2488:Motorola Solutions DIMETRA
2474:Motorola Solutions DIMETRA
2160:Telecommunications carrier
1696:CLP Power Hong Kong Limited
1595:Fire service and ambulance
1222:Man-machine interface (MMI)
780:380-385 (MS), 390-395 (BS)
505:consists of 4 slots, and a
302:for the ciphertext, making
242:to comply with Knowledge's
118:, rail transport staff for
10:
6198:
5983:Type II SmartZone OmniLink
5733:: CS1 maint: url-status (
5369:Rīgas pašvaldības policija
5156:November 30, 2010, at the
5024:. Mediacenter.motorola.com
4072:
4069:
3963:Road patrol, country-wide
3959:Polícia Rodoviária Federal
2598:
2298:
2286:Coast Guard Administration
2008:Melco-Crown Entertainment
1767:
1562:
1483:
422:
325:security through obscurity
18:
6123:LTR Standard and Passport
6103:
6087:
6078:
5996:
5953:
5946:
5942:
5874:
5836:
5707:"Tetra SVXLink dashboard"
5390:"DAN COMMUNICATIONS, SIA"
4271:
4157:Goldcoast infrastructure
4098:Western Australia Mining
3984:
3931:
3926:
3818:
3781:
3660:
3611:
3558:
3462:
3448:HamTetra Network Romania
3390:
3359:
3326:
3166:
3026:
3020:National law enforcement
3012:(SIA DAN Communications)
2997:Local law enforcement in
2989:(SIA DAN Communications)
2965:
2919:
2782:
2735:
2682:
2662:
2623:
2549:Rustenburg Platinum Mine
2470:
2355:
2301:
2219:
2134:
2035:
2001:
1943:
1555:16th Asian Games in 2010
1486:
1227:Virtual MMI for terminals
1200:
921:Tiny Encryption Algorithm
876:
857:
814:
795:
743:
724:
694:
675:
656:
589:
562:
549:
546:
100:professional mobile radio
84:Terrestrial Trunked Radio
71:
59:
50:professional mobile radio
41:
31:
27:Terrestrial Trunked Radio
4435:ETSI EN 300 392-2 v3.2.1
4227:Australian Submarine Co
3943:América Latina Logística
3640:In operation / roll-out
3322:Established before 2003
2658:Flanders & Brussels
2062:Sungai Buloh–Kajang line
1953:PT. Mobilkom Telekomindo
1726:Modern Terminals Limited
1429:Comparison to Project 25
1406:Wireless Messaging API,
908:Air interface encryption
255:may contain suggestions.
240:may need to be rewritten
221:Security vulnerabilities
6177:Emergency communication
4728:10.1023/A:1011942300054
4566:. Usenix Security 2023.
4165:Fortescue Metals group
4000:Zenitel, C3 since 2005
3977:Public Safety Agencies
3445:Hytera/Motorola/Sepura
3319:Public Transport, Oslo
3123:Civil Protection Force
2552:Potgietersrus, Limpopo
2477:Police, traffic police
2105:Maldives Police Service
2028:All emergency services
1974:Anti Corruption Agency
1971:Anti Corruption Agency
1874:Consort Digital Pvt Ltd
1841:Consort Digital Pvt Ltd
1810:Consort Digital Pvt Ltd
1106:Radio down-link failure
1098:Radio down-link failure
880:SIRESP - Public Safety
850:Offshore Oil platforms
4137:Origin Energy (APLNG)
2524:Johannesburg, Gauteng
2510:Nelspruit, Mpumalanga
2313:Oil & gas company
2241:Taiwan High Speed Rail
1687:In use since Feb 2009
1657:Mass Transit Railway (
1642:Immigration Department
1610:Hong Kong Police Force
1336:roll allocation server
1261:roll allocation server
1140:Type of communication
1107:
1079:
1038:
1018:
974:
973:Cell initial selection
965:Initial cell selection
949:
864:382.65–399.9, 410–430
826:Airwave (London only)
652:Frequency pairs (MHz)
538:
333:Kerckhoffs's principle
116:public safety networks
21:Tetra (disambiguation)
6167:Trunked radio systems
5936:Trunked radio systems
4716:BT Technology Journal
4665:Post- og teletilsynet
4217:Brisbane City Council
3971:Teltronic / Motorola
3955:Teltronic / Motorola
3887:EADS/Cassidian/Airbus
3864:EADS/Cassidian/Airbus
3823:EADS/Cassidian/Airbus
3819:United Arab Emirates
3595:EADS/Cassidian/Airbus
3548:Ministry of Interior
3531:Ministry of Interior
3428:EADS/Cassidian/Airbus
2993:Riga Municipal Police
2787:EADS/Cassidian/Airbus
2741:EADS/Cassidian/Airbus
2721:EADS/Cassidian/Airbus
2628:EADS/Cassidian/Airbus
2568:Ministry of Interior
2459:Namibian Police Force
2202:EADS/Cassidian/Airbus
2193:Implemented Oct 2015
2179:Implemented Nov 2014
2040:EADS/Cassidian/Airbus
1991:Jakarta Capital City
1586:EADS/Cassidian/Airbus
1567:EADS/Cassidian/Airbus
1546:EADS/Cassidian/Airbus
1528:EADS/Cassidian/Airbus
1491:EADS/Cassidian/Airbus
1182:Inter-regional train
1105:
1077:
1036:
1016:
972:
947:
731:385–389.9, 395–399.9
701:380–386.5, 390–396.5
682:380–386.5, 390–396.5
550:Frequency pair (MHz)
536:
389:end-to-end encryption
5474:"TETRA Forum Poland"
4783:An Overview of TETRA
4553:. Blackhat USA 2023.
4389:Digital mobile radio
3743:Transport for London
3645:Rohde & Schwarz
3554:In central Slovenia
2305:Rohde & Schwarz
1505:Rolling out: Line 2
1302:End-user parameters.
1296:Service acquisition,
837:450, 460 / 452, 462
373:operator/dispatcher.
96:trunked radio system
90:; formerly known as
54:trunked radio system
19:For other uses, see
6105:Logic Trunked Radio
6081:distributed control
5267:"SINE - About SINE"
4446:"TETRA Association"
4413:APCO standard (USA)
4353:Amateur Radio usage
4246:Tertiary education
4215:Operational across
4042:Dominican Republic
3756:staff and relaying
3377:Rohill (TetraNode)
3183:Nationwide network
3056:Commercial network
2821:Motorola / Dimetra
2753:Nationwide network
2731:Nationwide network
2644:Nationwide network
2594:In use, Nationwide
2574:In use, nationwide
2546:Rohill (TetraNode)
2532:Rohill (TetraNode)
2518:Rohill (TetraNode)
2502:Rohill (TetraNode)
2466:In use, nationwide
2420:Rohill (TetraNode)
2316:In use since 2003.
2121:Motorola / Dimetra
1983:Rohde & Schwarz
1858:HCL & Motorola
1377:spectrum efficiency
1307:Service acquisition
1210:Data to be verified
1127:
1078:Cell relinquishable
888:Commercial/Private
861:Emergency services
799:Emergency services
777:Emergency services
766:Emergency services
736:Emergency services
717:Emergency services
698:Emergency services
668:Emergency services
642:
543:
181:short data services
167:point-to-multipoint
28:
5947:Central controller
5414:"Page Redirection"
5140:. 8 February 2018.
4788:2011-09-27 at the
4419:(previously MATRA)
4331:Auckland Transport
4182:Gas and pipelines
3747:London Underground
3607:In use since 2006
3589:In use since 2009
3573:In use since 2006
3545:Selex/OTE/Marconi
3383:Roll-out ongoing.
3278:TATA steel Europe
3197:Commercial users.
2980:In use since 2007
2940:Rete Interpolizie
2769:HKL-Raitioliikenne
2582:Motorolasolutions
2538:Pretoria, Gauteng
2494:City of Cape Town
2445:In use Since 2006
2348:Highway authority
2141:Shell Exploration
2130:In use Since 2009
2014:In use since 2007
1450:Professional usage
1125:
1120:serving cell level
1108:
1080:
1039:
1019:
975:
950:
640:
563:Emergency systems
541:
539:
191:group calling mode
26:
6149:
6148:
6145:
6144:
6141:
6140:
6074:
6073:
5978:Type II SmartZone
5902:
5901:
5775:prepared for the
5442:www.connectcom.lu
5151:TETRA Association
5054:Tamil Nadu Police
4350:
4349:
4212:Local government
4140:Kordia Solutions
3914:Mazatlán, Sinaloa
3808:Alacer Gold Mine
3764:when underground
3701:British Red Cross
3693:St John Ambulance
3489:Launched in 2008
3264:Schiphol Airport
3256:Regional network
3240:Regional network
3220:Regional network
3200:National license
3194:ENTROPIA DIGITAL
2765:Helsingin Energia
2652:ENTROPIA DIGITAL
2483:Gauteng province
2176:Electric company
2090:Operational 2021
2044:Segi Maju (SEGI)
1936:Faridabad police
1872:DAMM TetraFlex /
1864:Delhi government
1846:Tamil Nadu police
1839:DAMM TetraFlex /
1808:DAMM TetraFlex /
1358:page provides an
1219:
1218:
1154:Pedestrian/metro
905:
904:
872:806–818, 851–863
755:Civilian/private
739:380–385, 390–395
728:Civilian/private
706:Civil/Commercial
660:Civilian/private
638:
637:
529:Radio frequencies
448:Technical details
403:TETRA Association
306:attacks possible.
270:
269:
244:quality standards
81:
80:
6189:
6085:
6084:
5955:Motorola systems
5951:
5950:
5944:
5943:
5929:
5922:
5915:
5906:
5905:
5821:
5814:
5807:
5798:
5797:
5761:
5760:
5759:
5758:
5750:rats-ry/HamTetra
5745:
5739:
5738:
5732:
5724:
5717:
5711:
5710:
5703:
5697:
5696:
5694:
5693:
5682:
5676:
5670:
5664:
5658:
5652:
5651:
5645:
5637:
5635:
5634:
5625:. Archived from
5619:
5613:
5607:
5601:
5600:
5598:
5596:
5586:
5580:
5579:
5577:
5575:
5570:
5562:
5556:
5550:
5544:
5543:
5541:
5540:
5535:
5527:
5521:
5515:
5509:
5503:
5497:
5491:
5485:
5484:
5482:
5481:
5470:
5464:
5463:
5452:
5446:
5445:
5433:
5422:
5421:
5410:
5404:
5403:
5401:
5400:
5386:
5380:
5379:
5377:
5376:
5361:
5355:
5354:
5352:
5351:
5337:
5331:
5324:
5318:
5312:
5306:
5300:
5294:
5288:
5282:
5281:
5279:
5278:
5269:. Archived from
5263:
5257:
5251:
5245:
5244:
5233:
5224:
5223:
5221:
5220:
5209:
5203:
5202:
5191:
5185:
5184:
5182:
5181:
5172:. Archived from
5166:
5160:
5148:
5142:
5141:
5134:
5128:
5127:
5116:
5110:
5109:
5107:
5106:
5095:
5089:
5088:
5086:
5085:
5075:
5069:
5063:
5057:
5051:
5045:
5039:
5033:
5032:
5030:
5029:
5018:
5012:
5011:
5009:
5008:
4997:
4991:
4990:
4988:
4987:
4972:
4966:
4965:
4963:
4954:
4948:
4947:
4945:
4944:
4935:. Archived from
4929:
4920:
4919:
4917:
4916:
4909:"Shenyang Metro"
4905:
4899:
4898:
4896:
4895:
4880:
4874:
4869:
4863:
4862:
4855:
4849:
4844:
4838:
4837:
4830:
4824:
4823:
4803:
4797:
4779:
4773:
4772:
4770:
4769:
4746:
4740:
4739:
4711:
4705:
4704:
4697:
4691:
4690:
4688:
4679:
4673:
4672:
4667:. Archived from
4657:
4651:
4650:
4635:
4629:
4628:
4626:
4625:
4616:. Archived from
4606:
4600:
4599:
4597:
4596:
4582:
4574:
4568:
4567:
4565:
4554:
4552:
4541:
4528:
4527:
4519:
4504:
4503:
4502:. pp. 9–10.
4496:
4490:
4489:
4487:
4486:
4477:. Archived from
4467:
4461:
4460:
4458:
4457:
4442:
4436:
4433:
4409:(Project 25), a
4253:security staff.
4168:Open cut mining
3989:Windward Islands
3705:Highland Council
3316:Ruter/Sporveien
3107:Fire department
3098:North Macedonia
3003:Ordered in 2016
2767:, tram operator
2431:Since June 2012
2047:Public operator
1646:Law enforcement
1630:Law enforcement
1461:
1460:
1211:
1208:
1128:
1124:
845:454, 464 or 460
695:the Netherlands
643:
639:
544:
540:
467:
466:
462:
430:linear amplifier
298:AIE contains no
265:
262:
256:
233:
225:
108:fire departments
29:
25:
6197:
6196:
6192:
6191:
6190:
6188:
6187:
6186:
6152:
6151:
6150:
6137:
6099:
6080:
6070:
6009:APCO Project 25
6004:APCO Project 16
5992:
5973:Type IIi Hybrid
5938:
5933:
5903:
5898:
5870:
5832:
5825:
5769:
5764:
5756:
5754:
5747:
5746:
5742:
5726:
5725:
5723:. 10 July 2024.
5721:"Tetrapack Map"
5719:
5718:
5714:
5709:. 10 July 2024.
5705:
5704:
5700:
5691:
5689:
5684:
5683:
5679:
5671:
5667:
5659:
5655:
5639:
5638:
5632:
5630:
5623:"Archived copy"
5621:
5620:
5616:
5608:
5604:
5594:
5592:
5588:
5587:
5583:
5573:
5571:
5568:
5564:
5563:
5559:
5551:
5547:
5538:
5536:
5533:
5529:
5528:
5524:
5516:
5512:
5504:
5500:
5492:
5488:
5479:
5477:
5472:
5471:
5467:
5454:
5453:
5449:
5436:Sefrengo, CMS.
5434:
5425:
5412:
5411:
5407:
5398:
5396:
5388:
5387:
5383:
5374:
5372:
5363:
5362:
5358:
5349:
5347:
5339:
5338:
5334:
5326:{{cite web|url=
5325:
5321:
5313:
5309:
5301:
5297:
5289:
5285:
5276:
5274:
5265:
5264:
5260:
5252:
5248:
5241:www.entropia.eu
5235:
5234:
5227:
5218:
5216:
5211:
5210:
5206:
5193:
5192:
5188:
5179:
5177:
5168:
5167:
5163:
5158:Wayback Machine
5149:
5145:
5136:
5135:
5131:
5118:
5117:
5113:
5104:
5102:
5097:
5096:
5092:
5083:
5081:
5077:
5076:
5072:
5064:
5060:
5052:
5048:
5040:
5036:
5027:
5025:
5020:
5019:
5015:
5006:
5004:
4999:
4998:
4994:
4985:
4983:
4974:
4973:
4969:
4961:
4955:
4951:
4942:
4940:
4931:
4930:
4923:
4914:
4912:
4907:
4906:
4902:
4893:
4891:
4882:
4881:
4877:
4870:
4866:
4857:
4856:
4852:
4845:
4841:
4832:
4831:
4827:
4804:
4800:
4790:Wayback Machine
4780:
4776:
4767:
4765:
4747:
4743:
4712:
4708:
4699:
4698:
4694:
4686:
4680:
4676:
4659:
4658:
4654:
4637:
4636:
4632:
4623:
4621:
4614:Crystal Code AB
4608:
4607:
4603:
4594:
4592:
4585:Computer Weekly
4575:
4571:
4563:
4555:
4550:
4542:
4531:
4522:Midnight Blue.
4520:
4507:
4498:
4497:
4493:
4484:
4482:
4469:
4468:
4464:
4455:
4453:
4444:
4443:
4439:
4434:
4430:
4426:
4385:
4355:
4308:Air New Zealand
4277:DAMM TetraFlex
4224:DAMM TetraFlex
4176:DAMM TetraFlex
4162:DAMM TetraFlex
4154:Goldcoast rail
4134:DAMM TetraFlex
4129:Infrastructure
4115:Infrastructure
4092:DAMM TetraFlex
4078:DAMM TetraFlex
3993:Leeward Islands
3805:DAMM TetraFlex
3769:AirRadio AR-en
3661:United Kingdom
3508:DAMM TetraFlex
3494:DAMM TetraFlex
3466:DAMM TetraFlex
3090:European Union
2952:DAMM TetraFlex
2923:DAMM TetraFlex
2838:
2829:
2828:TETRA Services
2804:DAMM TetraFlex
2763:Energy company
2686:DAMM TetraFlex
2637:fr:A.S.T.R.I.D.
2634:nl:A.S.T.R.I.D.
2497:Cape Peninsula
1922:Gurgaon police
1745:Container port
1730:Container port
1540:Ordered 5/2010
1516:Electric Power
1510:DAMM TetraFlex
1504:
1487:China mainland
1452:
1431:
1389:Refer also to:
1372:
1229:
1224:
1215:
1214:
1209:
1205:
1100:
1072:
1031:
1017:Cell improvable
1011:
1009:Cell improvable
967:
942:
937:
910:
834:Prison service
531:
464:
460:
459:
455:
450:
415:
341:
266:
260:
257:
247:
234:
223:
151:
126:. TETRA is the
64:
52:
48:
24:
17:
12:
11:
5:
6195:
6185:
6184:
6179:
6174:
6169:
6164:
6147:
6146:
6143:
6142:
6139:
6138:
6136:
6135:
6130:
6125:
6120:
6115:
6109:
6107:
6101:
6100:
6098:
6097:
6091:
6089:
6082:
6076:
6075:
6072:
6071:
6069:
6068:
6063:
6057:
6052:
6046:
6041:
6036:
6031:
6026:
6021:
6019:EDACS Provoice
6016:
6011:
6006:
6000:
5998:
5994:
5993:
5991:
5990:
5985:
5980:
5975:
5970:
5965:
5959:
5957:
5948:
5940:
5939:
5932:
5931:
5924:
5917:
5909:
5900:
5899:
5897:
5896:
5891:
5886:
5880:
5878:
5872:
5871:
5869:
5868:
5863:
5858:
5853:
5848:
5842:
5840:
5834:
5833:
5824:
5823:
5816:
5809:
5801:
5795:
5794:
5789:
5784:
5779:
5768:
5767:External links
5765:
5763:
5762:
5740:
5712:
5698:
5677:
5665:
5653:
5614:
5602:
5581:
5557:
5545:
5522:
5510:
5498:
5486:
5465:
5447:
5423:
5405:
5381:
5356:
5332:
5319:
5307:
5295:
5283:
5258:
5246:
5225:
5204:
5186:
5161:
5143:
5129:
5111:
5090:
5070:
5058:
5046:
5034:
5013:
4992:
4967:
4949:
4921:
4900:
4875:
4864:
4850:
4839:
4825:
4798:
4774:
4741:
4706:
4692:
4674:
4671:on 2005-01-12.
4652:
4630:
4601:
4569:
4529:
4505:
4491:
4462:
4437:
4427:
4425:
4422:
4421:
4420:
4414:
4404:
4398:
4392:
4384:
4381:
4374:
4373:
4370:
4354:
4351:
4348:
4347:
4344:
4341:
4338:
4334:
4333:
4323:
4320:
4317:
4311:
4310:
4300:
4297:
4294:
4288:
4287:
4284:
4281:
4280:BHP One Steel
4278:
4275:
4269:
4268:
4265:
4263:
4261:
4255:
4254:
4247:
4244:
4241:
4235:
4234:
4231:
4228:
4225:
4221:
4220:
4213:
4210:
4207:
4201:
4200:
4197:
4196:Pyrenees FPSO
4194:
4191:
4187:
4186:
4183:
4180:
4177:
4173:
4172:
4169:
4166:
4163:
4159:
4158:
4155:
4152:
4149:
4145:
4144:
4141:
4138:
4135:
4131:
4130:
4127:
4124:
4121:
4117:
4116:
4113:
4110:
4107:
4103:
4102:
4099:
4096:
4093:
4089:
4088:
4085:
4082:
4079:
4076:
4071:
4067:
4066:
4059:
4052:
4046:
4043:
4039:
4038:
4031:Sint Eustatius
4004:
4001:
3998:
3995:
3986:
3982:
3981:
3978:
3975:
3972:
3968:
3967:
3964:
3961:
3956:
3952:
3951:
3948:
3945:
3940:
3935:
3930:
3924:
3923:
3920:
3917:
3911:
3908:
3903:
3902:Latin America
3899:
3898:
3894:
3891:
3889:
3884:
3880:
3879:
3874:
3871:
3866:
3860:
3859:
3852:Ras Al-Khaimah
3848:Umm Al-Qaiwain
3833:
3830:
3825:
3820:
3816:
3815:
3812:
3809:
3806:
3803:
3799:
3798:
3795:
3792:
3791:Mountain Rose
3789:
3786:
3783:
3779:
3778:
3775:
3772:
3770:
3766:
3765:
3750:
3740:
3735:
3728:
3727:
3724:
3722:Prison Service
3719:
3716:
3712:
3711:
3708:
3679:Police, fire,
3677:
3672:
3662:
3658:
3657:
3654:
3651:
3646:
3642:
3641:
3638:
3634:
3631:
3627:
3626:
3623:
3619:
3616:
3613:
3609:
3608:
3605:
3602:
3597:
3591:
3590:
3587:
3584:
3582:Basque Country
3579:
3575:
3574:
3571:
3570:Mainly police
3568:
3566:Basque Country
3563:
3560:
3556:
3555:
3552:
3549:
3546:
3543:
3539:
3538:
3535:
3532:
3529:
3523:
3519:
3518:
3515:
3512:
3509:
3505:
3504:
3501:
3498:
3495:
3491:
3490:
3487:
3484:
3481:
3477:
3476:
3473:
3470:
3467:
3464:
3460:
3459:
3455:
3449:
3446:
3443:
3440:
3439:
3436:
3433:
3430:
3424:
3423:
3420:
3417:
3412:
3408:
3407:
3404:
3401:
3398:
3392:
3388:
3387:
3384:
3381:
3378:
3374:
3373:
3370:
3367:
3364:
3361:
3357:
3356:
3355:Local Network
3353:
3350:
3347:
3343:
3342:
3339:
3336:
3331:
3328:
3324:
3323:
3320:
3317:
3314:
3311:
3308:
3307:
3304:
3301:
3296:
3290:
3286:
3285:
3284:Local network
3282:
3279:
3276:
3272:
3271:
3270:Local network
3268:
3265:
3262:
3258:
3257:
3254:
3251:
3246:
3242:
3241:
3238:
3235:
3229:
3222:
3221:
3218:
3215:
3210:
3202:
3201:
3198:
3195:
3192:
3185:
3184:
3181:
3178:
3175:
3168:
3164:
3163:
3160:
3157:
3154:
3148:
3144:
3143:
3140:
3137:
3135:
3132:
3128:
3127:
3124:
3121:
3119:
3116:
3112:
3111:
3108:
3105:
3102:
3099:
3095:
3094:
3091:
3088:
3085:
3078:
3077:
3074:
3071:
3068:
3061:
3060:
3057:
3054:
3051:
3044:
3043:
3040:
3037:
3034:
3028:
3024:
3023:
3021:
3018:
3013:
3005:
3004:
3001:
2995:
2990:
2982:
2981:
2978:
2975:
2972:
2967:
2963:
2962:
2959:
2956:
2953:
2949:
2948:
2945:
2941:
2938:
2934:
2933:
2930:
2927:
2924:
2921:
2917:
2916:
2913:
2909:
2908:TETRA Ireland
2906:
2900:
2896:
2895:
2892:
2888:
2887:TETRA Iceland
2885:
2879:
2875:
2874:
2871:
2867:
2864:
2861:
2857:
2856:
2853:
2850:
2847:
2844:
2841:
2840:
2835:
2831:
2822:
2819:
2815:
2814:
2811:
2808:
2805:
2801:
2800:
2797:
2794:
2789:
2784:
2780:
2779:
2776:
2761:
2758:
2755:
2754:
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2748:
2743:
2737:
2733:
2732:
2729:
2726:
2723:
2718:
2714:
2713:
2710:
2707:
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2697:
2696:
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2687:
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2679:
2676:
2673:
2670:
2664:
2660:
2659:
2656:
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2650:
2646:
2645:
2642:
2639:
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2625:
2621:
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2614:
2609:
2603:
2600:
2596:
2595:
2592:
2589:
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2580:
2576:
2575:
2572:
2569:
2566:
2561:
2557:
2556:
2553:
2550:
2547:
2543:
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2539:
2536:
2533:
2529:
2528:
2525:
2522:
2519:
2515:
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2511:
2508:
2503:
2499:
2498:
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2489:
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2478:
2475:
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2468:
2467:
2464:
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2456:
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2440:
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2433:
2432:
2429:
2426:
2421:
2417:
2416:
2413:
2410:
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2404:
2403:
2400:
2397:
2392:
2388:
2387:
2384:
2381:
2376:
2372:
2371:
2368:
2367:Oil & gas
2365:
2360:
2357:
2353:
2352:
2349:
2346:
2341:
2338:
2334:
2333:
2330:
2329:Power utility
2327:
2322:
2318:
2317:
2314:
2311:
2306:
2303:
2300:
2296:
2295:
2292:
2289:
2283:
2280:
2279:
2276:
2273:
2268:
2265:
2264:
2261:
2258:
2253:
2250:
2249:
2246:
2243:
2238:
2235:
2234:
2231:
2228:
2223:
2221:
2217:
2216:
2213:
2210:
2204:
2199:
2195:
2194:
2191:
2188:
2187:Manila Line 2
2185:
2181:
2180:
2177:
2174:
2169:
2165:
2164:
2161:
2158:
2153:
2149:
2148:
2145:
2142:
2139:
2136:
2132:
2131:
2128:
2125:
2122:
2119:
2115:
2114:
2111:
2108:
2102:
2096:
2092:
2091:
2088:
2085:
2079:
2072:
2071:
2068:
2065:
2059:
2052:
2051:
2048:
2045:
2042:
2037:
2033:
2032:
2029:
2026:
2023:
2016:
2015:
2012:
2009:
2006:
2003:
1999:
1998:
1995:
1989:
1986:
1985:/ Accessnet-T
1979:
1978:
1975:
1972:
1969:
1965:
1964:
1961:
1958:
1955:
1945:
1941:
1940:
1937:
1934:
1931:
1927:
1926:
1923:
1920:
1917:
1913:
1912:
1909:
1903:
1893:
1889:
1888:
1885:
1882:
1876:
1869:
1868:
1865:
1862:
1859:
1855:
1854:
1851:
1848:
1843:
1836:
1835:
1832:
1831:Kerala police
1829:
1826:
1822:
1821:
1818:
1815:
1812:
1805:
1804:
1801:
1798:
1792:
1785:
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1655:
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1607:
1600:
1599:
1596:
1593:
1588:
1582:
1581:
1578:
1575:
1569:
1564:
1560:
1559:
1556:
1553:
1548:
1542:
1541:
1538:
1535:
1533:Shenzhen Metro
1530:
1524:
1523:
1520:
1517:
1511:
1507:
1506:
1503:In use: Line 1
1501:
1498:
1496:Shenyang Metro
1493:
1488:
1485:
1481:
1480:
1477:
1474:
1471:
1468:
1465:
1451:
1448:
1444:
1443:
1439:
1430:
1427:
1426:
1425:
1418:
1411:
1404:
1397:
1371:
1368:
1304:
1303:
1300:
1297:
1275:
1274:
1271:
1228:
1225:
1223:
1220:
1217:
1216:
1213:
1212:
1202:
1201:
1198:
1197:
1194:
1191:
1188:
1184:
1183:
1180:
1177:
1174:
1170:
1169:
1166:
1163:
1160:
1156:
1155:
1152:
1149:
1146:
1142:
1141:
1138:
1135:
1132:
1099:
1096:
1084:relinquishable
1071:
1068:
1067:
1066:
1063:
1060:
1057:
1030:
1027:
1010:
1007:
1002:
1001:
998:
980:mobile station
966:
963:
941:
938:
936:
935:Cell selection
933:
909:
906:
903:
902:
899:
897:
893:
892:
889:
885:
884:
881:
878:
874:
873:
870:
869:Civil/Private
866:
865:
862:
859:
855:
854:
851:
847:
846:
843:
839:
838:
835:
831:
830:
827:
823:
822:
819:
816:
812:
811:
808:
804:
803:
800:
797:
793:
792:
789:
786:
782:
781:
778:
775:
771:
770:
767:
764:
760:
759:
756:
752:
751:
748:
745:
741:
740:
737:
733:
732:
729:
726:
722:
721:
718:
715:
711:
710:
707:
703:
702:
699:
696:
692:
691:
688:
684:
683:
680:
677:
673:
672:
669:
665:
664:
661:
658:
654:
653:
650:
647:
636:
635:
632:
629:
625:
624:
621:
618:
614:
613:
610:
607:
603:
602:
599:
596:
592:
591:
590:Civil systems
587:
586:
583:
580:
576:
575:
572:
569:
565:
564:
560:
559:
556:
552:
551:
548:
530:
527:
454:
451:
449:
446:
437:
436:
433:
426:
414:
411:
399:
398:
395:
392:
385:
374:
370:
363:
360:
356:
340:
337:
314:
313:
310:
307:
300:authentication
296:
292:ComputerWeekly
286:
283:oracle attacks
268:
267:
237:
235:
228:
222:
219:
163:point-to-point
150:
147:
79:
78:
73:
69:
68:
61:
57:
56:
43:
39:
38:
33:
15:
9:
6:
4:
3:
2:
6194:
6183:
6180:
6178:
6175:
6173:
6170:
6168:
6165:
6163:
6160:
6159:
6157:
6134:
6131:
6129:
6126:
6124:
6121:
6119:
6116:
6114:
6111:
6110:
6108:
6106:
6102:
6096:
6093:
6092:
6090:
6086:
6083:
6077:
6067:
6064:
6061:
6058:
6056:
6053:
6050:
6047:
6045:
6042:
6040:
6037:
6035:
6032:
6030:
6027:
6025:
6022:
6020:
6017:
6015:
6012:
6010:
6007:
6005:
6002:
6001:
5999:
5995:
5989:
5986:
5984:
5981:
5979:
5976:
5974:
5971:
5969:
5966:
5964:
5961:
5960:
5958:
5956:
5952:
5949:
5945:
5941:
5937:
5930:
5925:
5923:
5918:
5916:
5911:
5910:
5907:
5895:
5892:
5890:
5887:
5885:
5882:
5881:
5879:
5877:
5873:
5867:
5864:
5862:
5859:
5857:
5854:
5852:
5849:
5847:
5844:
5843:
5841:
5839:
5835:
5830:
5829:two-way radio
5822:
5817:
5815:
5810:
5808:
5803:
5802:
5799:
5793:
5790:
5788:
5785:
5783:
5780:
5778:
5774:
5771:
5770:
5752:
5751:
5744:
5736:
5730:
5722:
5716:
5708:
5702:
5687:
5681:
5674:
5669:
5662:
5657:
5649:
5643:
5629:on 2014-02-12
5628:
5624:
5618:
5611:
5606:
5591:
5585:
5567:
5561:
5554:
5549:
5532:
5526:
5519:
5514:
5507:
5502:
5495:
5490:
5475:
5469:
5461:
5457:
5451:
5443:
5439:
5432:
5430:
5428:
5419:
5418:www.renita.lu
5415:
5409:
5395:
5391:
5385:
5370:
5366:
5360:
5346:
5342:
5336:
5329:
5323:
5316:
5311:
5304:
5299:
5292:
5287:
5273:on 2012-04-27
5272:
5268:
5262:
5255:
5250:
5242:
5238:
5232:
5230:
5215:. Artevea.com
5214:
5208:
5200:
5196:
5190:
5176:on 2013-03-23
5175:
5171:
5165:
5159:
5155:
5152:
5147:
5139:
5133:
5125:
5121:
5115:
5101:. Artevea.com
5100:
5094:
5080:
5074:
5067:
5062:
5055:
5050:
5043:
5038:
5023:
5017:
5003:. Artevea.com
5002:
4996:
4982:on 2011-05-26
4981:
4977:
4971:
4960:
4953:
4939:on 2013-02-21
4938:
4934:
4928:
4926:
4910:
4904:
4890:on 2012-03-13
4889:
4885:
4879:
4873:
4868:
4861:. 3 May 2012.
4860:
4854:
4848:
4843:
4835:
4829:
4821:
4817:
4813:
4809:
4802:
4795:
4791:
4787:
4784:
4778:
4764:
4760:
4756:
4752:
4749:Zetter, Kim.
4745:
4737:
4733:
4729:
4725:
4721:
4717:
4710:
4702:
4696:
4685:
4678:
4670:
4666:
4662:
4656:
4648:
4644:
4640:
4634:
4620:on 2014-05-29
4619:
4615:
4611:
4605:
4590:
4586:
4581:
4573:
4562:
4561:
4549:
4548:
4540:
4538:
4536:
4534:
4525:
4524:"TETRA:BURST"
4518:
4516:
4514:
4512:
4510:
4501:
4495:
4481:on 2018-02-28
4480:
4476:
4472:
4471:"TETRA - PST"
4466:
4452:on 2018-08-16
4451:
4447:
4441:
4432:
4428:
4418:
4415:
4412:
4408:
4405:
4402:
4399:
4396:
4393:
4390:
4387:
4386:
4380:
4377:
4371:
4368:
4367:
4366:
4363:
4361:
4345:
4342:
4339:
4336:
4335:
4332:
4328:
4324:
4321:
4318:
4316:
4313:
4312:
4309:
4305:
4301:
4298:
4295:
4293:
4290:
4289:
4286:Awarded 2012
4285:
4282:
4279:
4276:
4274:
4270:
4266:
4264:
4262:
4260:
4257:
4256:
4252:
4248:
4245:
4242:
4240:
4237:
4236:
4233:Awarded 2012
4232:
4229:
4226:
4223:
4222:
4218:
4214:
4211:
4208:
4206:
4203:
4202:
4199:Awarded 2016
4198:
4195:
4193:BHP Billiton
4192:
4189:
4188:
4185:Awarded 2011
4184:
4181:
4178:
4175:
4174:
4171:Awarded 2011
4170:
4167:
4164:
4161:
4160:
4156:
4153:
4150:
4148:Rohill Tetra
4147:
4146:
4142:
4139:
4136:
4133:
4132:
4128:
4125:
4123:BHP Billiton
4122:
4120:Rohill Tetra
4119:
4118:
4114:
4111:
4108:
4106:Rohill Tetra
4105:
4104:
4101:Awarded 2009
4100:
4097:
4094:
4091:
4090:
4087:Awarded 2011
4086:
4083:
4081:BHP Billiton
4080:
4077:
4075:
4068:
4065:
4060:
4058:
4053:
4051:
4047:
4044:
4041:
4040:
4036:
4032:
4028:
4024:
4020:
4016:
4012:
4008:
4005:
4002:
3999:
3996:
3994:
3990:
3987:
3983:
3979:
3976:
3973:
3970:
3969:
3965:
3962:
3960:
3957:
3954:
3953:
3949:
3946:
3944:
3941:
3939:
3936:
3934:
3929:
3928:South America
3925:
3921:
3918:
3915:
3912:
3909:
3907:
3904:
3901:
3900:
3895:
3892:
3890:
3888:
3885:
3882:
3881:
3878:
3875:
3872:
3870:
3867:
3865:
3862:
3861:
3857:
3853:
3849:
3845:
3841:
3837:
3834:
3831:
3829:
3826:
3824:
3821:
3817:
3814:Awarded 2012
3813:
3810:
3807:
3804:
3801:
3800:
3796:
3793:
3790:
3787:
3784:
3780:
3776:
3773:
3771:
3768:
3767:
3763:
3759:
3755:
3751:
3748:
3744:
3741:
3739:
3736:
3734:
3730:
3729:
3725:
3723:
3720:
3717:
3714:
3713:
3709:
3706:
3702:
3698:
3697:St John Cymru
3694:
3690:
3689:HM Coastguard
3686:
3682:
3678:
3676:
3673:
3671:
3667:
3663:
3659:
3656:In operation
3655:
3652:
3650:
3647:
3644:
3643:
3639:
3635:
3632:
3629:
3628:
3624:
3620:
3617:
3614:
3610:
3606:
3603:
3601:
3598:
3596:
3593:
3592:
3588:
3585:
3583:
3580:
3577:
3576:
3572:
3569:
3567:
3564:
3561:
3557:
3553:
3550:
3547:
3544:
3541:
3540:
3536:
3533:
3530:
3528:
3524:
3521:
3520:
3517:Awarded 2011
3516:
3513:
3510:
3507:
3506:
3503:Awarded 2009
3502:
3499:
3496:
3493:
3492:
3488:
3485:
3482:
3479:
3478:
3475:Awarded 2011
3474:
3471:
3468:
3465:
3461:
3456:
3454:
3450:
3447:
3444:
3442:
3441:
3437:
3434:
3431:
3429:
3426:
3425:
3421:
3418:
3416:
3413:
3410:
3409:
3405:
3402:
3399:
3397:
3393:
3389:
3385:
3382:
3379:
3376:
3375:
3371:
3368:
3365:
3362:
3358:
3354:
3351:
3348:
3345:
3344:
3340:
3337:
3335:
3332:
3329:
3325:
3321:
3318:
3315:
3312:
3310:
3309:
3305:
3302:
3300:
3297:
3295:
3291:
3288:
3287:
3283:
3280:
3277:
3274:
3273:
3269:
3266:
3263:
3260:
3259:
3255:
3252:
3250:
3247:
3244:
3243:
3239:
3236:
3234:
3230:
3228:
3224:
3223:
3219:
3216:
3214:
3211:
3208:
3204:
3203:
3199:
3196:
3193:
3191:
3187:
3186:
3182:
3179:
3176:
3173:
3169:
3165:
3161:
3158:
3155:
3153:
3149:
3146:
3145:
3141:
3138:
3136:
3133:
3130:
3129:
3125:
3122:
3120:
3117:
3114:
3113:
3109:
3106:
3103:
3100:
3097:
3096:
3092:
3089:
3086:
3084:
3080:
3079:
3075:
3072:
3069:
3067:
3063:
3062:
3058:
3055:
3052:
3050:
3046:
3045:
3041:
3038:
3035:
3033:
3029:
3025:
3022:
3019:
3017:
3014:
3011:
3007:
3006:
3002:
3000:
2996:
2994:
2991:
2988:
2984:
2983:
2979:
2976:
2973:
2971:
2968:
2964:
2961:Awarded 2009
2960:
2957:
2954:
2951:
2950:
2946:
2942:
2939:
2936:
2935:
2932:Awarded 2010
2931:
2928:
2925:
2922:
2918:
2914:
2910:
2907:
2905:
2901:
2898:
2897:
2893:
2889:
2886:
2884:
2880:
2877:
2876:
2872:
2868:
2865:
2862:
2859:
2858:
2854:
2851:
2848:
2845:
2843:
2842:
2836:
2832:
2827:
2823:
2820:
2817:
2816:
2813:Awarded 2012
2812:
2809:
2806:
2803:
2802:
2798:
2795:
2793:
2790:
2788:
2785:
2781:
2777:
2774:
2770:
2766:
2762:
2759:
2757:
2756:
2752:
2749:
2747:
2744:
2742:
2738:
2734:
2730:
2727:
2724:
2722:
2719:
2716:
2715:
2711:
2708:
2705:
2703:
2699:
2698:
2695:Awarded 2009
2694:
2691:
2688:
2685:
2681:
2677:
2674:
2671:
2669:
2665:
2661:
2657:
2654:
2651:
2648:
2647:
2643:
2640:
2638:
2635:
2632:
2629:
2626:
2622:
2618:
2615:
2613:
2610:
2608:
2604:
2601:
2597:
2593:
2590:
2587:
2585:
2581:
2578:
2577:
2573:
2570:
2567:
2565:
2562:
2559:
2558:
2554:
2551:
2548:
2545:
2544:
2540:
2537:
2534:
2531:
2530:
2526:
2523:
2520:
2517:
2516:
2512:
2509:
2507:
2504:
2501:
2500:
2496:
2493:
2490:
2487:
2486:
2482:
2480:SAPS Gauteng
2479:
2476:
2473:
2471:South Africa
2469:
2465:
2462:
2460:
2457:
2455:
2452:
2449:
2448:
2444:
2441:
2438:
2435:
2434:
2430:
2427:
2425:
2424:Bayelsa State
2422:
2419:
2418:
2414:
2411:
2409:
2406:
2405:
2401:
2398:
2396:
2393:
2390:
2389:
2385:
2382:
2380:
2377:
2374:
2373:
2369:
2366:
2364:
2361:
2358:
2354:
2350:
2347:
2345:
2342:
2339:
2336:
2335:
2331:
2328:
2326:
2323:
2320:
2319:
2315:
2312:
2310:
2307:
2304:
2297:
2293:
2290:
2287:
2284:
2282:
2281:
2277:
2274:
2272:
2269:
2267:
2266:
2262:
2259:
2257:
2254:
2252:
2251:
2247:
2244:
2242:
2239:
2237:
2236:
2232:
2229:
2227:
2224:
2222:
2218:
2214:
2211:
2208:
2205:
2203:
2200:
2197:
2196:
2192:
2189:
2186:
2183:
2182:
2178:
2175:
2173:
2170:
2167:
2166:
2162:
2159:
2157:
2156:Globe Telecom
2154:
2151:
2150:
2146:
2143:
2140:
2137:
2133:
2129:
2126:
2123:
2120:
2117:
2116:
2112:
2109:
2106:
2103:
2101:
2097:
2094:
2093:
2089:
2086:
2083:
2080:
2078:
2074:
2073:
2069:
2066:
2063:
2060:
2058:
2054:
2053:
2049:
2046:
2043:
2041:
2038:
2034:
2030:
2027:
2024:
2022:
2018:
2017:
2013:
2010:
2007:
2004:
2000:
1996:
1994:
1990:
1987:
1984:
1981:
1980:
1976:
1973:
1970:
1967:
1966:
1962:
1959:
1956:
1954:
1950:
1946:
1942:
1938:
1935:
1932:
1929:
1928:
1924:
1921:
1918:
1915:
1914:
1910:
1907:
1904:
1902:
1898:
1894:
1891:
1890:
1887:Awarded 2011
1886:
1883:
1880:
1877:
1875:
1871:
1870:
1866:
1863:
1860:
1857:
1856:
1853:Awarded 2011
1852:
1849:
1847:
1844:
1842:
1838:
1837:
1833:
1830:
1827:
1824:
1823:
1820:Awarded 2010
1819:
1816:
1813:
1811:
1807:
1806:
1802:
1799:
1796:
1793:
1791:
1787:
1786:
1782:
1779:
1776:
1773:
1770:
1766:
1762:
1759:
1757:
1754:
1752:
1751:
1747:
1744:
1742:
1739:
1737:
1736:
1732:
1729:
1727:
1724:
1722:
1721:
1717:
1714:
1712:
1709:
1707:
1706:
1702:
1699:
1697:
1694:
1691:
1690:
1686:
1683:
1680:
1677:
1675:
1671:
1670:
1666:
1663:
1660:
1656:
1653:
1652:
1648:
1645:
1643:
1640:
1637:
1636:
1632:
1629:
1627:
1624:
1621:
1620:
1616:
1613:
1611:
1608:
1606:
1602:
1601:
1597:
1594:
1592:
1589:
1587:
1584:
1583:
1579:
1576:
1573:
1570:
1568:
1565:
1561:
1558:Ordered 2010
1557:
1554:
1552:
1549:
1547:
1544:
1543:
1539:
1536:
1534:
1531:
1529:
1526:
1525:
1521:
1518:
1515:
1512:
1509:
1508:
1502:
1499:
1497:
1494:
1492:
1489:
1482:
1478:
1475:
1472:
1469:
1466:
1463:
1462:
1459:
1455:
1447:
1440:
1436:
1435:
1434:
1423:
1419:
1416:
1412:
1409:
1405:
1402:
1398:
1395:
1392:
1391:
1390:
1387:
1385:
1380:
1378:
1367:
1365:
1361:
1357:
1352:
1349:
1345:
1339:
1337:
1333:
1329:
1328:
1323:
1318:
1316:
1310:
1308:
1301:
1298:
1295:
1294:
1293:
1291:
1287:
1282:
1280:
1272:
1269:
1268:
1267:
1264:
1262:
1258:
1252:
1250:
1244:
1242:
1238:
1234:
1207:
1203:
1199:
1195:
1192:
1189:
1186:
1185:
1181:
1178:
1175:
1172:
1171:
1167:
1164:
1161:
1158:
1157:
1153:
1150:
1147:
1144:
1143:
1139:
1137:Distance (km)
1136:
1133:
1130:
1129:
1123:
1121:
1116:
1113:
1104:
1095:
1091:
1089:
1085:
1076:
1064:
1061:
1058:
1055:
1054:
1053:
1050:
1046:
1044:
1035:
1026:
1024:
1015:
1006:
999:
996:
995:
994:
991:
987:
985:
981:
971:
962:
958:
956:
946:
932:
930:
926:
925:stream cipher
922:
917:
915:
900:
898:
896:Saudi Arabia
895:
894:
890:
887:
886:
882:
879:
875:
871:
868:
867:
863:
860:
856:
852:
849:
848:
844:
841:
840:
836:
833:
832:
828:
825:
824:
820:
817:
813:
809:
806:
805:
801:
798:
794:
790:
787:
785:South Africa
784:
783:
779:
776:
773:
772:
768:
765:
762:
761:
757:
754:
753:
749:
746:
742:
738:
735:
734:
730:
727:
723:
719:
716:
713:
712:
708:
705:
704:
700:
697:
693:
689:
686:
685:
681:
678:
674:
670:
667:
666:
662:
659:
655:
651:
648:
645:
644:
633:
630:
627:
626:
622:
619:
616:
615:
611:
608:
605:
604:
600:
597:
594:
593:
588:
584:
581:
578:
577:
573:
570:
567:
566:
561:
557:
554:
553:
545:
535:
526:
524:
520:
516:
510:
508:
504:
499:
497:
496:
491:
486:
482:
480:
476:
471:
469:
453:Radio aspects
445:
443:
434:
431:
427:
424:
420:
419:
418:
413:Disadvantages
410:
408:
404:
396:
393:
390:
386:
383:
379:
375:
371:
368:
364:
361:
357:
354:
350:
349:
348:
346:
336:
334:
330:
326:
321:
319:
311:
308:
305:
301:
297:
294:
293:
287:
284:
280:
279:
278:
276:
264:
261:November 2023
254:
250:
245:
241:
238:This article
236:
232:
227:
226:
218:
216:
212:
208:
204:
200:
199:mobile phones
196:
192:
187:
184:
182:
177:
175:
170:
168:
164:
160:
156:
146:
144:
140:
135:
133:
129:
125:
121:
117:
113:
109:
105:
101:
97:
93:
89:
85:
77:
74:
70:
67:
62:
58:
55:
51:
47:
44:
40:
37:
34:
30:
22:
6128:LTR MultiNet
6118:LTR Passport
6113:LTR Standard
6079:Scan-based /
5755:, retrieved
5749:
5743:
5715:
5701:
5690:. Retrieved
5680:
5668:
5656:
5631:. Retrieved
5627:the original
5617:
5605:
5593:. Retrieved
5584:
5572:. Retrieved
5560:
5548:
5537:. Retrieved
5525:
5513:
5501:
5494:Moscow Metro
5489:
5478:. Retrieved
5468:
5460:www.c2000.nl
5459:
5450:
5441:
5417:
5408:
5397:. Retrieved
5393:
5384:
5373:. Retrieved
5371:(in Latvian)
5368:
5359:
5348:. Retrieved
5344:
5335:
5322:
5310:
5298:
5286:
5275:. Retrieved
5271:the original
5261:
5249:
5240:
5217:. Retrieved
5207:
5198:
5195:"Hyperlinks"
5189:
5178:. Retrieved
5174:the original
5164:
5146:
5132:
5124:mis-asia.com
5123:
5114:
5103:. Retrieved
5093:
5082:. Retrieved
5073:
5061:
5049:
5037:
5026:. Retrieved
5016:
5005:. Retrieved
4995:
4984:. Retrieved
4980:the original
4970:
4952:
4941:. Retrieved
4937:the original
4913:. Retrieved
4903:
4892:. Retrieved
4888:the original
4878:
4867:
4853:
4842:
4828:
4811:
4807:
4801:
4777:
4766:. Retrieved
4754:
4744:
4722:(3): 81–88.
4719:
4715:
4709:
4695:
4677:
4669:the original
4664:
4655:
4642:
4633:
4622:. Retrieved
4618:the original
4613:
4604:
4593:. Retrieved
4584:
4572:
4559:
4546:
4494:
4483:. Retrieved
4479:the original
4474:
4465:
4454:. Retrieved
4450:the original
4440:
4431:
4378:
4375:
4364:
4356:
4126:Macedon Gas
4112:Ichthys LNG
4062:
4055:
4049:
4037:operational
4023:Saint Martin
4019:Sint Maarten
3950:Operational
3922:Operational
3858:operational
3782:Middle East
3752:Used by all
3726:Operational
3452:
3167:Netherlands
3093:Operational
3076:Operational
3059:Operational
3016:State Police
2977:Oil and gas
2947:Rolling out
2937:SELEX ELSAG
2630:/Since 1998
2583:
2415:Rolling out
2256:Taipei Metro
2212:Electricity
2198:South Korea
2144:Oil and gas
2135:Philippines
1977:Operational
1897:Thales Group
1780:Indian Army
1522:In use 2010
1456:
1453:
1445:
1432:
1388:
1381:
1373:
1363:
1359:
1355:
1353:
1340:
1335:
1331:
1325:
1321:
1319:
1311:
1306:
1305:
1289:
1285:
1283:
1278:
1276:
1265:
1260:
1256:
1253:
1248:
1245:
1230:
1206:
1173:Countryside
1119:
1117:
1111:
1109:
1092:
1087:
1083:
1081:
1051:
1047:
1042:
1040:
1022:
1020:
1003:
992:
988:
983:
979:
976:
959:
955:base station
951:
928:
918:
913:
911:
518:
514:
511:
506:
502:
500:
493:
487:
483:
472:
456:
438:
416:
400:
382:many-to-many
352:
342:
322:
315:
304:malleability
290:
271:
258:
249:You can help
239:
188:
185:
180:
178:
171:
152:
136:
120:train radios
91:
87:
83:
82:
72:Headquarters
32:Company type
5894:P25 phase 2
5861:P25 phase 1
5777:Home Office
4781:Doug Gray,
4273:New Zealand
3731:Motorola /
3664:Motorola /
3525:Motorola /
3432:TETRA EADS
3406:Nationwide
3394:Motorola /
3292:Motorola /
3225:Motorola /
3205:Motorola /
3188:Motorola /
3170:Motorola /
3150:Motorola /
3147:Montenegro
3087:ConnectCom
3081:Motorola /
3070:ConnectCom
3064:Motorola /
3053:ConnectCom
3047:Motorola /
3030:Motorola /
3027:Luxembourg
3008:Motorola /
2985:Motorola /
2902:Motorola /
2881:Motorola /
2863:Pro-M Ltd.
2799:Nationwide
2739:Nokia; now
2700:Motorola /
2666:Motorola /
2605:Motorola /
2584:Dimetra IP
2521:City Power
2428:Government
2402:Since 2010
2386:Since 2014
2370:Since 2006
2363:Nigeria LNG
2098:Motorola /
2075:Motorola /
2055:Motorola /
2019:Motorola /
1947:Motorola /
1788:Motorola /
1672:Motorola /
1603:Motorola /
1299:Status SDS,
1088:abandonable
1037:Cell usable
1029:Cell usable
986:parameter.
929:basic level
687:Commercial
649:Allocation
428:Requires a
423:Description
378:one-to-many
367:transponder
207:full-duplex
203:cell phones
153:TETRA uses
149:Description
137:TETRA is a
6156:Categories
5757:2024-07-10
5692:2024-07-10
5688:(in Dutch)
5633:2014-02-13
5539:2012-03-28
5480:2020-06-08
5399:2020-06-21
5375:2020-06-21
5350:2020-06-21
5345:www.dan.lv
5277:2012-02-23
5219:2012-03-28
5180:2013-05-08
5105:2012-03-28
5084:2013-01-14
5028:2012-03-28
5007:2012-03-28
4986:2012-03-28
4943:2016-02-08
4915:2012-03-28
4894:2012-03-28
4768:2023-07-24
4624:2013-07-16
4595:2023-07-26
4485:2017-01-25
4456:2012-03-28
4424:References
4337:Teltronic
4095:Rio Tinto
3985:Caribbean
3974:12 states
3578:Teltronic
3281:Hoogovens
3126:July 2001
2849:Teltronic
2275:Transport
2260:Transport
2245:Transport
2230:Transport
2087:Transport
2067:Transport
1944:Indonesia
1800:Transport
1760:Diplomacy
1684:Transport
1664:Transport
1563:Hong Kong
1537:Transport
1500:Transport
1464:Continent
1356:parameters
1322:parameters
1196:In flight
1168:Bus/train
1159:Sub-urban
1023:improvable
858:Hong Kong
634:395–399.9
507:multiframe
353:geographic
339:Advantages
277:database:
215:dispatcher
205:), with a
195:dispatcher
132:Project 25
6095:GE Marc V
5831:standards
5394:Prakse.lv
4814:: 29–37.
4763:1059-1028
4736:169255984
4340:Widarcom
4327:Hutt City
4322:Councils
4299:Airports
4190:Motorola
4151:Goldlinq
4074:Australia
3877:Abu Dhabi
3788:Motorola
3630:Motorola
3600:Catalonia
3562:Motorola
3542:Slovenia
3411:Motorola
3363:Motorola
3346:Motorola
3330:Motorola
3327:Portugal
3313:Motorola
3134:Motorola
2760:HelenNet
2555:Complete
2541:Complete
2527:Complete
2513:Complete
2309:Sonatrach
2288:(Taiwan)
2118:Pakistan
2095:Maldives
2036:Malaysia
1715:Electric
1700:Electric
1692:Motorola
1654:Motorola
1638:Motorola
1622:Motorola
1551:Guangzhou
1514:Guangzhou
1470:Supplier
1442:channels.
1134:Parameter
877:Portugal
853:423, 413
842:AirRadio
774:Slovenia
519:perceived
479:linearity
475:sidebands
253:talk page
112:ambulance
36:Incentive
6062:Tier III
6039:TETRAPOL
6024:MPT-1327
5846:TETRAPOL
5827:Digital
5729:cite web
5642:cite web
5154:Archived
4794:etsi.org
4786:Archived
4647:Archived
4589:Archived
4417:TETRAPOL
4383:See also
4325:Used by
4302:Used by
4249:Used by
4239:Motorola
4205:Motorola
4070:Oceania
4035:Anguilla
3938:Motorola
3856:Fujairah
3391:Romania
3118:Marconi
2899:Ireland
2878:Iceland
2860:Hungary
2783:Germany
2736:Finland
2717:Estonia
2683:Denmark
2663:Croatia
2624:Belgium
2602:Austria
2450:Namibia
2395:Shell Ng
2379:Mobil Ng
2356:Nigeria
2337:Morocco
2332:In use.
2325:Sonelgaz
2302:Algeria
2209:(KEPCO)
2005:Artevea
1771:Artevea
1467:Country
1422:JTWI-185
1346:and the
1344:asterisk
1131:Coverage
891:420-430
883:380–395
818:Airwave
810:425-429
802:380-395
791:420-423
750:380–390
725:Ireland
714:Germany
709:410-430
690:410-420
676:Belgium
671:380–400
663:410–430
646:Country
623:460–470
612:915–921
601:420–430
585:393–395
574:390–393
128:European
124:military
106:forces,
42:Industry
6133:LTR-Net
6029:OpenSky
5968:Type II
5574:4 March
4319:KorKor
4296:KorKor
4045:Hytera
4015:Curaçao
4011:Bonaire
3997:Rohill
3869:Polikom
3840:Sharjah
3802:Turkey
3785:Israel
3758:Airwave
3738:Connect
3733:Dimetra
3715:Hytera
3675:Airwave
3666:Dimetra
3612:Sweden
3551:Police
3527:Dimetra
3522:Serbia
3480:Sepura
3463:Russia
3415:Dimetra
3396:Dimetra
3360:Poland
3294:Dimetra
3289:Norway
3275:Sepura
3261:Rohill
3245:Rohill
3231:CCTN /
3227:Dimetra
3207:Dimetra
3190:Dimetra
3172:Dimetra
3152:Dimetra
3131:Monaco
3110:In use
3101:Hytera
3083:Dimetra
3066:Dimetra
3049:Dimetra
3036:Renita
3032:Dimetra
3010:Dimetra
2987:Dimetra
2970:Artevea
2966:Latvia
2904:Dimetra
2894:In-use
2883:Dimetra
2873:In-use
2846:SEPURA
2818:Greece
2702:Dimetra
2672:MUPNet
2668:Dimetra
2607:Dimetra
2599:Europe
2571:Police
2564:Artevea
2463:Police
2454:Artevea
2340:Rohill
2321:Sepura
2299:Africa
2294:In use
2278:In use
2263:In use
2248:In use
2233:In use
2220:Taiwan
2215:In use
2172:Meralco
2127:Police
2113:In use
2110:Police
2100:Dimetra
2077:Dimetra
2070:In use
2057:Dimetra
2050:In use
2031:In use
2021:Dimetra
1993:Jakarta
1949:Dimetra
1881:(GAIL)
1790:Dimetra
1777:(MCTE)
1763:In use
1748:In use
1733:In use
1718:In use
1703:In use
1681:(HKIA)
1674:Dimetra
1667:In use
1649:In use
1633:In use
1617:In use
1614:Police
1605:Dimetra
1598:In use
1574:(HKIA)
1479:Status
1476:Agency
1415:JSR-139
1394:JSR-118
1237:Java ME
1193:> 64
1190:> 32
1187:In Air
796:Sweden
763:Norway
657:France
631:385–390
620:450–460
609:870–876
598:410–420
582:383–385
571:380–383
558:Band 2
490:vocoder
463:⁄
347:) are:
174:trunked
159:carrier
145:(ERC).
98:, is a
60:Founded
6051:Mode 3
5963:Type I
5866:D-STAR
4976:"HOME"
4761:
4734:
4643:ComReg
4315:Kordia
4292:Kordia
4259:Sepura
4109:Inpex
4033:, and
3933:Brazil
3906:Mexico
3883:Qatar
3854:, and
3718:Tetra
3670:Sepura
3633:Tetra
3618:RAKEL
3559:Spain
3334:SIRESP
3177:C2000
3115:Malta
2920:Italy
2792:BOSNET
2773:HRTA's
2725:ESTER
2612:TETRON
2579:Egypt
2560:Sudan
2107:(MPS)
2002:Macao
1825:C-DAC
1768:India
1408:JSR120
1401:JSR-37
1151:< 8
1148:< 4
1112:usable
1043:usable
744:Italy
555:Band 1
547:Number
492:using
251:. The
114:) for
104:police
76:Europe
66:Europe
6034:TETRA
6014:EDACS
5997:Other
5884:TETRA
5595:1 Jan
5569:(PDF)
5534:(PDF)
5456:"MDC"
4962:(PDF)
4755:Wired
4732:S2CID
4687:(PDF)
4564:(PDF)
4551:(PDF)
4243:Zeon
4209:Zeon
4007:Aruba
3844:Ajman
3836:Dubai
3828:Nedaa
2746:VIRVE
2706:SINE
2588:MERC
1960:HOOU
1906:BMRCL
1901:BMRCL
1484:Asia
1473:Name
1417:; and
1277:This
1179:36–62
1176:18–31
1165:20–36
1162:10–18
1145:City
503:frame
318:S-box
88:TETRA
6162:ETSI
6055:NXDN
6049:dPMR
6044:GoTa
5988:iDEN
5876:TDMA
5856:NXDN
5851:dPMR
5838:FDMA
5735:link
5648:link
5597:2023
5576:2020
4759:ISSN
4401:NXDN
4027:Saba
3991:and
3760:for
3754:Tube
3649:Got1
2999:Riga
2824:COSM
2399:Oil
2383:Oil
1899:for
1364:help
1354:The
1348:hash
1332:GSSI
1327:ISSI
1320:The
1315:ISSI
1290:main
1286:home
1284:The
1241:CLDC
1233:Java
758:462
523:TDMA
515:idle
407:ETSI
380:and
211:PSTN
165:and
63:1995
6066:PDT
6060:DMR
5889:DMR
4816:doi
4724:doi
4475:PST
4411:TIA
4407:P25
3762:BTP
3681:NHS
3249:RET
3233:GVB
3213:HTM
2826:OTE
2344:ADM
1659:MTR
1384:QAM
1362:or
1360:aid
1330:or
1259:or
815:UK
525:).
442:LTE
345:GSM
275:CVE
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5731:}}
5727:{{
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