----- Original Message -----
From: "Peter Chadwick" <g3rzp@g3rzp.wanadoo.co.uk>
> Gary said:
>>The old HP141 will do it but even it has stability trouble with the
> 1.2 ghz rf head in it. <
>
> The oscillator that downconverts the first IF to 500MHz is about 1500MHz,
> and is free running. It's surprising that it manages the stability it
> does.
> One of these days, I'm going to do a PLL to stabilise it.
> 73
> Peter G3RZP
Even the 110 MHz head isn't terribly stable, Peter. I agree that a modern
PLL/DDS based synthesizer for this analyzer would be a really useful
project.
Mike W4EF....................................
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