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Re: dish gain for AO-40



If anyone is still having problems getting 98% plus CRCC OK copy of the
beacon for the whole pass horizon to horizon (trees excepting), ... then get
one of these kits from James:

http://www.jrmiller.demon.co.uk/products/s_ant.html

Its a killer, simple and VERY effective, ... I have 2, ... one for 70cm IF
and another for 2m IF, .... and the capture is terrific! The dishes are
small so low wind load and easy to mount, .... you don't need anything
bigger than a 60cm dish, ... just get a solid one with the patch!

Paul, VP9MU
AO-40 Telemetry Archive

----- Original Message -----
From: "Bruce Nolte N3LSY" <brucenol@abs.net>
To: "James Sharp" <jsharp@psychoses.org>
Cc: <amsat-bb@AMSAT.Org>
Sent: Friday, November 23, 2001 5:18 PM
Subject: Re: [amsat-bb] dish gain for AO-40


> I am using the same D/C with a 32 inch offset fed dish, about twice the
area
> of a 2 foot dish, and 75 feet of RG-59 for feedline and am getting about
S7
> on the beacon and typically an S3 noise floor.  Do you have the Murata
> filter?
>
> You may want to see about adjusting the feedpoint of the converter, moving
it
> in or out a couple of inches. Still, unless you were shooting at the bird
> during a high squint angle period, you should be doing better than S3. I
> would check your feedline connections again as well.
>
> James Sharp wrote:
>
> > My downlink dish is one of K5GNA's 2 foot dishes with a modified
AIDC3733
> > down converter...unfortunately, as it stands, its just not enough to
pull
> > anything but an S3 beacon level and only the strongest QSOs out of the
> > mud.  My rig is an FT-736 at the end of 20 feet of RG-6 quad shield.
> >
> > Any recommendations on what I can do to kick things up a notch, so to
> > speak?
> >
> > ----
> > Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
> > To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org
>
> ----
> Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
> To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org
>

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