[amsat-bb] Re: AO-51 update

[Robert Bruninga]

> ...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 at hotmail.com>
> To: <glasbrenner at mindspring.com>; <amsat-bb at amsat.org>; 
> <ao51-modes at 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
> >> _______________________________________________
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> 
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