[amsat-bb] HF Satellite Transponder

Paul Stoetzer n8hm at arrl.net
Thu May 26 17:49:52 UTC 2016

A 15 to 10 Mode K satellite would be fun. 12 meters is allocated to the
Amateur Satellite Service, of course, but the limited bandwidth of the band
might cause conflicts if the satellite continues to function when the solar
cycle starts to perk up again. 15 meters, on the other hand, has plenty of
room, especially if you put the uplink somewhere above 21.400.


Paul, N8HM

On Thu, May 26, 2016 at 1:45 PM, Robert Bruninga <bruninga at usna.edu> wrote:

> I may have a launch opportunity for an HF=HF transponder for a possible
> cubesat idea.  Probably something like 12m up and 10m down?
> Is this worth doing (re-doing) at this point of technology?  Enough
> bandwidth to support a few voice channels?
> Any volunteers to build the translator board?
> How is 24 MHz band used?  The entire SSB portion of the band is only 60
> kHz, so using say 15 kHz for a linear translator to 10m would be quite a
> slice.  But then the downlink at 10m would be OK since it does have an
> exclusive satellite band and so any inadvertent QSO's would be coming down
> in a non-competing downlink
> Just some open ended thinking after Dayton.
> Bob, WB4aPR
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