[amsat-bb] Re: Yes, DStar can work on LEO

Bob Witte K0NR list at k0nr.com
Mon Feb 26 19:16:43 PST 2007

Someone wrote:
>> Please do not use FM on any of the transponder satellites, whether D-Star or
>> plain FM. FM of any kind is expressly unwelcome on AO-7 especially.
>> If you would like to set up a test of D-Star via AO-51, please organize the
>> effort and send a request to schedule it to ao51-modes at amsat.org or to
>> myself directly and we will accommodate the test on a FM satellite, where FM
>> belongs. I think it'd be an interesting experiment.
> Umm, I thought D-Star was a digital mode, not riding on top of 
> FM.  Is it transmitted as AFSK or is it modulated directly onto the 
> carrier?  If it's the latter, then it wouldn't work on an FM satellite.
> 73 de VK3JED
> http://vkradio.com
    From ICOM America web site:
    D-STAR uses the up-to-date modulation method of 0.5GMSK--Gaussian 
Minimum Shift Keying.

    73, Bob K0NR

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