[amsat-bb] best sat radio

Diane Bruce db at db.net
Sat Feb 18 15:28:38 UTC 2017

On Fri, Feb 17, 2017 at 07:26:50PM -0700, Jim White wrote:
> I'm working with a university that is launching a UHF half duplex 
> satellite in a few months and is putting a ground station at U Alaska 
> Fairbanks.  We are planning on a TS2000 for the radio. I've not seen any 
> new ones pop up lately but thought I'd ask if that one is still a good 
> choice.  Seems considerable overkill for a single UHF freq with 9k6 GMSK 
> modulation.

The TS2k handles full-duplex which you do not need. It also has some
an unfortunate birdie which may or not affect you (436.7950).
You could easily use some other UHF receiver or receiver chain with some work.
Notably you may have to remove the de-emphasis circuit or bypass it
by tapping into the discriminator directly; Some radios provide
such already and then you could easily decode 9k6 GMSK in software.

> Jim
> wd0e at amsat.org
> jim at coloradosatellite.com

Diane VA3DB
- db at FreeBSD.org db at db.net http://www.db.net/~db

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