BasicB-002-005-011

What is the meaning of the Morse code signal "R"?

A
Answer
Licensing, station identification, and operation
Type
A
All received
B
Repeat all
C
Called station only reply
D
End of message

Answer Notes

In Morse code (CW) communications, sending the single letter "R" is shorthand for "Roger" or "Received." It explicitly means "All received" and is used to acknowledge that the previous transmission was successfully copied. It is important not to confuse this with a request to repeat a message. If an operator misses part of a message and needs it sent again, they would use specific prosigns or Q-signals, not "R". Using "R" correctly saves time on the air and efficiently confirms successful communication before moving on to the next part of the exchange.
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What do "RST" signal reports describe?