[ICOM] 756P: Locking PLL to GPS for EME

[Woody]

Hi Greg:

Have you had any success in devising a way to lock the IC-756P to a GPS 10 
MHz. reference?

73,

Woody
KJ4SO

----- Original Message ----- 
From: "Greg Bailey" <GBailey at Mail.SDSU.Edu>
To: <icom at mailman.qth.net>
Sent: Wednesday, February 28, 2007 3:55 PM
Subject: [ICOM] 756P: Locking PLL to GPS for EME


>I have been very happy with my 756P since buying it a number of years ago.
> However, my interest has drifted from using it on HF, to its application 
> in
> the EME arena.  Specifically, I propose to use the 756P at 46 MHz as an IF
> for a 1296 transverter.
>
> My question: has anyone locked the 756P's PLL reference oscillator 
> (32.00056
> MHz) to a GPS reference?  I see a number of way to accomplish this
> modification, primarily bypassing the reference crystal and going directly
> into Q51?
>
> My service manual, provided when I purchased the receiver, indicates on 
> the
> PLL schematic that the reference crystal is X51, however, in the parts 
> list
> (p 5-21) it is called out as X52?
>
> Any suggestions would be appreciated off line:   gbailey at mail.sdsu.edu
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