Do you know what he had?

Perhaps what he would like is another radio similar to what he had.

TMT

Art Harris schrieb:

Volker Tonn wrote:


No. CW is just unmodulated AM-carrier



Oh? And how is an unmodulated AM carrier different than an unmodulated
FM carrier?


You can't make this listenable with a FM-receiver :-)

Morse code is just the most common way to *use* CW.



In shortwave/ham radio use, CW is understood to mean Morse code. I'm
sure that's how his grandfather meant it.


In shortwave use 'CW mode' means having a adjustable BFO to adjust the
listenig tone to a frequency the listener likes best.

"CW" was originally used to
differentiate "continuous wave" telegraphy from "spark" telegraphy
("spark" being a damped sinusoid).


Technically spoken CW is independent from any code. You're free to use
your own created code on the HAM-bands when you make the syntax available.
You can send 'morse' code in FM-mode very easy. But you have to have a
tone generator in the TX and you have the limitation not being able to
adjust the listening tone in the RX.
At least telegraphy -with morse code- was used first on 'telegraphy
stations' connected by wire....

Greetings,
Volker