[amsat-bb] Re: Use of ICOM 910 for AO-51 L-Band BBS Uplink?

[Andrew Glasbrenner]

I use the 910 with one of the KJ6KO 60 watt amps to 50ft of lmr400uf, and a 
m2 35 element yagi. Circular would be better, but I also use the antenna 
system for terrestrial SSB work. Fine tuning the uplink is very important on 
L band. Due probably to radio inaccuracies, and maybe on the spacecraft, I 
have to offset the uplink by about 3 khz.

73, Drew KO4MA

----- Original Message ----- 
From: "Jim Heck" <jimlist at milnet.uk.net>
To: <amsat-bb at amsat.org>
Sent: Thursday, August 20, 2009 5:05 AM
Subject: [amsat-bb] Use of ICOM 910 for AO-51 L-Band BBS Uplink?


> Hi Folks,
>
>  I would be interested to know if anyone is using an ICOM 910 with the 
> L-Band
> module for Ao-51 uplink on the BBS? (The optional L-Band unit for the 910 
> runs 10
> watts according to the book).
>
>  I am particularly interested to know what type/gain of antenna I would 
> need to get
> a reliable up link. I am planning to use about 20 metres of Ecoflex 10, 
> which will
> introduce a loss of something like 3 Dbs.
>
>  I know that the LBand/Digital up link is currently off, just gettting 
> ready for
> the next 'on' period!
>
> 73s
>
> Jim G3WGM
>
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