Total posts : 45366
Suppose a 5mW shortwave transmission at 13.560mHz employed both code and amplitude modulation?
Let’s talk about the code signal.
Morse code is usually a tone, although I think it can also be done with carrier on off, I’m not sure.
For tone sounded code, which I think is also called CW (continuous wave), what is the audio frequency of the tone? How much can it vary? How is it typically modulated?
Is tone sent by amplitude modulation the same as code sent by whatever other method?
If program audio included occasional Morse code tone transmissions, would the code part reach farther than the audio portion?
This is a chance for us to learn from our HAM brethren.
