Re: Input Needed for RadCom Column


Chris Bartram G4DGU
 

Hello Andy,

There seems to be no restriction on using a tone signaling system with tones or frequency offsets chosen from a series of frequencies related by 2e(1/12). That should give a nice quasi-musical character to beacon idents without upsetting those who run the system.

73

Chris G4DGU


On 22/01/2020 17:35, Andy G4JNT wrote:
Unfortunately, the old people who run the system still mandate CW idents.  I see no point whatsoever in them, but whatevs...

The period of plain carrier, also mandated,  is essential as it gives a constant measure for any beacon.

But the proper modulation type is a free-for-all.  So a combination of fast mode plus slow mode is quite possible.   JT9 woul dbe good for that as it can have a lot of generator code in common, just changing the symbol rate and tone shift .  In fact for uWaves,  the same tone shift for fast and slow mode could even be maintained.


Join UKMicrowaves@groups.io to automatically receive all group messages.