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One of these reports, "LOUD AND CLEAR", is commonly used in television shows, movies, literature, and by radio operators, commonly without knowing the source or the rest of the standard reports (hence the much-reduced frequency with which the other combinations are used). For example:
38:
Allied
Communications Procedure 125(F), Communication Instructions Radiotelephone Procedure, published by the Combined Communication Electronics Board, defines radiotelephone procedures, and contains the original definitions for many common radio communications procedures, including
23:
is the means of requesting and giving a signal strength and readability report for radiotelephony (voice) communications, and is the direct equivalent to the
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The prowords listed below are for use when initiating and answering queries concerning signal strength and readability.
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is the voice signal reporting format developed by the ITU in 1959, but sees little use outside of shortwave listeners.
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Reports such as "five by five", "four by four", etc., will not be used to indicate strength and quality of reception.
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43:, radio net operations, etc. Section 611 of ACP 125(F) details how to conduct radio checks using plain language.
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At times your signal strength fades to such an extent that continuous reception cannot be relied upon.
273:. If reception is other than loud and clear, it must be described with the appropriate prowords.
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The omission of comment on signal strength and readability, by responding only with the proword
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means the signal strength is weak and there is also interference from another signal.
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339:(for wired and wireless telephone circuits only, not radiotelephony)
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means the signal strength is very strong but the audio is distorted.
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The quality of your transmission is so bad that I cannot read you.
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Having trouble reading you because your signal is intermittent.
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What is my signal strength and readability; how do you hear me?
294:"ACP 125 (F) - Comm Instructions - Radio Telephone Procedures"
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To be used when no reply is received from a called station.
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I have received your last transmission satisfactorily.
174:The quality of your transmission is satisfactory.
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198:Having trouble reading you due to interference.
190:Having trouble reading you due to interference.
27:used to give the same report in radiotelegraph (
166:The quality of your transmission is excellent.
243:means Fair copy, occasional fills are needed
90:
269:, is understood to mean that reception is
249:means Weak copy, frequent fills are needed
16:Operating signals for radio signal quality
261:means Unable to copy, a relay is required
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332:Signal strength and readability report
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133:Your signal strength is very weak.
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225:means Excellent copy with no noise
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237:means Good copy with slight noise
348:Allied Communication Procedures
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125:Your signal strength is weak.
117:Your signal strength is good.
1:
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109:Your signal is very strong.
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21:plain-language radio check
323:(for Amateur radio only)
91:Signal strength prowords
253:WEAK WITH INTERFERENCE
317:(for Morse code only)
47:Radio check procedure
148:Readability prowords
259:WEAK AND UNREADABLE
229:LOUD BUT DISTORTED
31:) communications.
363:Operating signals
247:WEAK BUT READABLE
241:FAIR BUT READABLE
235:GOOD AND READABLE
213:Examples of usage
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195:WITH INTERFERENCE
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315:QSA and QRK code
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296:. Archived from
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25:QSA and QRK code
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343:Procedure Words
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41:Procedure Words
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300:on 2015-05-25.
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271:LOUD AND CLEAR
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337:Circuit Merit
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81:NOTHING HEARD
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33:SINPEMFO code
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321:R-S-T system
298:the original
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203:INTERMITTENT
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65:RADIO CHECK
327:SINPO code
280:References
179:UNREADABLE
29:Morse code
187:DISTORTED
130:VERY WEAK
357:Category
309:See also
171:READABLE
158:Meaning
101:Meaning
60:Meaning
155:Proword
98:Proword
57:Proword
138:FADING
267:ROGER
163:CLEAR
73:ROGER
122:WEAK
114:GOOD
106:LOUD
359::
19:A
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