[amsat-bb] FM LEO satellites
w9ae at charter.net
Thu Dec 13 12:26:39 PST 2007
Joe WB9SBD wrote:
a whole bird with one "Channel" seems like a HUGE waste. Cool? Yeah,,
but single user uh,, nah.
Wayne W9AE replies:
AO-51 runs TWO transmitters most of the time. I'm NOT a big supporter
of LEO FM satellites, and I definitely wasn't happy about the "bait and
switch" after the first Eagle fund-raising campaign.
But in retrospect, AO-51 was VERY timely because it was launched shortly
after the demise of UO-14. UO-14 was probably the most popular hamsat
ever, measured by the number of ground stations who made contacts.
Also, the AO-51 digital payload came online when we were down to (I
think) only one, and sometimes NO working digital satellites.
In addition, AO-51's experimental modes help fill a vacuum while we wait
for the next HEO/microwave satellite. We ground station operators get
to dabble with bands V/S and L/S, and modes SSB/FM, and PSK/FM.
In general, I believe that the large AMSAT organizations (NA and DL)
should concentrate on HEO satellites and let the universities and
smaller AMSAT groups build LEO satellites. Satellites like VO-52 from
AMSAT-India, and KiwiSAT from AMSAT-ZL.
Wayne Estes W9AE
Oakland, Oregon, USA, CN83ik
AMSAT Area Coordinator, President's Club Member
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