Too achieve the vision we had for EMCOM, the ground terminal will almost certainly have to support C4FM so as to support long haul back haul of EMCOM from the P25 devices in the impacted disaster area. I am patient. I view this launch as an experiment where the Americas get a facility DIRT CHEAP that no one has provided and if we play our cards ride, this awesome but possibly suboptimal to perfection opportunity will lead to a nearly perfect opportunity.
Michelle has been rabble rousing for this for some time. She's right and glad you mentioned it. We need a volunteer to work on C4FM code to make this happen and a GREAT thing for AMSAT to do which will benefit ALL of amateur radio and beyond.
Bob N4HY
On Sun, Apr 26, 2015 at 2:43 AM, Jerry Buxton amsat@n0jy.org wrote:
On 4/25/2015 20:45, Paul Stoetzer wrote:
Well, there is some truth to that. Minimal Doppler shift, no checking Keps, no running predictions to check mutual footprints with those you want to work. Just point your dish at the satellite and talk to the entire hemisphere! Of course, experimenting with setting up and optimizing your ground station will be a huge part of the fun.
Yes, the experimenting will be a highlight of this! With SDR capability
the possibilities are wide, from digital voice to video to data like documents or photos, why not C4FM and even old fashioned analog. Schools can talk to schools, learning about satellites and on analog the delay to geo and back which is a hoot and a great way to learn to speak without distraction (all of the AO-10/13/40 crowd remember that), and don't forget the experimenting on the ground for smaller more portable stations - emergency communications will be a good customer for this and designing a portable station to go into an affected area for quick setup and reliable communications would be outstanding. Everyone can play however you like, in good old ham radio fashion! And importantly, think beyond North America. Unlike a geo TV satellite or something, this will cover all of North, Central AND South America. Lots of opportunities to work with hams all over Region 2!
But we will continue pursuing other opportunities which include LEO or even HEO transponders and such so don't forget about those - you can still keep in shape so you don't get rusty on your Doppler tuning and satellite tracking skills not to mention the STEM education we fly on CubeSats. :-)
I just finished up at the CubeSat Developer's Workshop here at Cal Poly tonight, and there are many opportunities for us to continue to partner on educational outreach missions that are also amateur radio satellites for the world to use.
Jerry N0JY
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