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RE: SDR Prototype transponders



Mode A would certainly be widely welcomed.

I noticed that the transponder bandwidth was given as just 45 kHz, what is 
the reason for restricting it to this bandwidth rather than the 100 or 150 
kHz that has been used on previous satellites ?

73 Trevor M5AKA
----
>From: "John Heath" <johnheath@easynet.co.uk>
>To: "amsat - bb" <amsat-bb@amsat.org>
>Subject: [amsat-bb] SDR Prototype transponders
>Date: Wed, 17 Aug 2005 21:31:35 -0000
>
>Congratulations to all involved in the SDR project, stateside and UK.
>I have frequently asked "Amsat Officials" why we don't have mode A 
>transponders anymore.
>The general flavour of the response is always, it all been done before,  
>and satellite builders want to do new stuff.
>If SDR is a route to a few mode A birds bring it on.
>
>BTW -  if you think Mode A,  (2m uplink  10m downlink)  is outdated I can 
>assure you that's its every bit as much fun for analogue contacts as 
>anything we have now. What's more its very easy for beginners,  and SSB 
>means there is room for lots of QSO's.
>
>73 John G7HIA ----
>Sent via amsat-bb@amsat.org. Opinions expressed are those of the author.
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----
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