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Re: AO-40 question - PT II



Well I was thinking of building a box to control the rig via
its CAT interface, but I like your idea better.  If only it
was easy to adjust the receiver like that...

Greg  KO6TH


>From: Howie DeFelice <hdefelice@petrexintl.com>
>Reply-To: Howie DeFelice <hdefelice@petrexintl.com>
>To: "Greg D." <ko6th_greg@hotmail.com>, amsat-bb@AMSAT.Org
>Subject: Re: [amsat-bb] AO-40 question - PT II
>Date: Wed, 13 Feb 2002 15:06:36 -0500
>
>I was thinking of the same thing. Since I already use a home brew 2M to 10M
>converter, my thought was to use the up/down outputs from AO40RCV to
>increment or decrement a counter that drove a D to A converter. The output
>of the D/A would in turn tune a varactor on the downconveter 117 MHz. L.O..
>This would keep the whole downlink passband tracked. This is still a "paper
>project". If and when I get around to it I'll post the results.
>
>Howie AB2S
>
>----- Original Message -----
>   The idea here is to use the mike up/down outputs from AO40RCV's
>"discriminator" to do the doppler tracking in a closed-loop way, based on
>the actual signal, not a predicted one.
>
>
>----
>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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