...to promote Amateur Radio Satellites on Field Day for the greater majority there will be more stations with V/U and/or V/S capability than L/S or L/U capability based on historical observation.
Which is why it is not a good idea to use V/U because it demonstrates a totally saturated and unuseable satellite channel. Uplink congestion on VHF where the link budget is 20 dB stronger than the downlink is the limiting factor and it is total bedlam/gridlock on FD and is a poor demonstration to the rest of the community and to other observers.
The L/U would be the best demo, because the uplink contention will be much less, yet EVERY field-day site can demo the downlink. The FD demo should not set themselves up such that a successful 2-way is required for success. Such stations will fail. It won't happen, or if it does, it happens by stomping all over others. This is not a good dsmonstration for ham radio at FD.
Better to plan on success as demonstrated by good downlink reception. THen everyone is successful. And the downlink is nice and clean just as we all dream of.
Bob, WB4APR
You can promote variety or you can promote AMSAT to the greater Amateur Radio community. Field Day should be a day utilized to promote Amateur Radio Satellites, not a separate or elite group that the majority will fail to achieve without more unique equipment required. If we fail to reach the greater Amateur Radio community we may fail to reach out to a greater number
of new
recruits.
73's, Tim - N8DEU
----- Original Message ----- From: "Greg D." ko6th_greg@hotmail.com To: glasbrenner@mindspring.com; amsat-bb@amsat.org; ao51-modes@amsat.org Sent: Sunday, May 02, 2010 10:29 PM Subject: [amsat-bb] Re: AO-51 update
I'd vote for either L/U or L/S, which ever is easier on the
batteries.
Greg KO6TH
Additionally, the AO51-modes group would like your input
on the desired
Field Day mode. We will likely be limited to one
transmitter operation.
With AO-27, SO-50, and possibly SO-67 and HO-68 on V/U FM,
S band or L/U
operation is looking very promising to provide some
variety.
73, Drew KO4MA AMSAT-NA VP Operations _______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those
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