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

[w7lrd@comcast.net]

Hello Jim 

I use a 910 on L band, it drives a KJ6KO amp at about 60-70W.  This goes through about 17M of LMR400, so I am loosing a few db there.  Antenna is a homebrew 16 turn RHCP helix.  I should try AO-51 without the amp, just to see what happens.  I'll send you picture in a separate email. 

73 Bob W7LRD 





----- Original Message ----- 
From: "Jim Heck" <jimlist at milnet.uk.net> 
To: amsat-bb at amsat.org 
Sent: Thursday, August 20, 2009 2:05:30 AM GMT -08:00 US/Canada Pacific 
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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