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@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