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Questions tagged [q-codes]

Questions about the meaning and customary use of Q-codes.

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4
votes
1answer
118 views

Last Morse call for Thomas?

What does this mean: CQ de KYHP QTC? K My father-in-law was a radio operator in the merchant marines during WWII — this was his last writing.
2
votes
1answer
677 views

Where can I find the definition of the Q Codes as they should be used in amateur radio (CW)?

Where can I find the definition of the Q Codes for amateur radio? So far I could only find ITU-R M.1172 ANNEX 1 Miscellaneous abbreviations and signals to be used for radiocommunications in ...
2
votes
2answers
124 views

What exactly is meant by “mutilated” in sense of QSD?

I'm reading Rec. ITU-R M.1172 and its precise definition of Q-code QSD is "Are my signals mutilated? Your signals are mutilated." From what I've seen, QSD is usually used to check if keying is ...
5
votes
1answer
199 views

What is a shallow/deep QSB?

Probably all amateurs recognize QSB as the q-code to represent 'fading'. I recently encountered the terms Shallow QSB Deep QSB A quick google search failed to yield fruit; What do the above terms ...
12
votes
2answers
17k views

What do “QRM” and “QSB” refer to?

An answer on Basic QSO format? mentions things like "QRM" and "QSB". What do those terms mean?