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Re: [Discuss-gnuradio] comparing SDR upconverters, thermal stability
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From: |
madengr |
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Subject: |
Re: [Discuss-gnuradio] comparing SDR upconverters, thermal stability |
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Date: |
Wed, 30 Mar 2016 08:15:50 -0700 (MST) |
If you can synthesize the LO for the upconverter using the RTL XO as a
reference, the drift may tend to cancel. I say "may" as this is a trick
used in dual or triple down conversion chains. If you can alternate between
low and high sided IFs, then the drifts will move in the opposite directions
(but not the same amount). Though with the complexity of doing that, might
as well just lock everything it to a 10 MHz reference.
Maybe just periodically calibrate to WWV.
Lou
Daniel Pocock wrote
> Has anybody been using any of the upconverters for SDR and has anybody
> made any comparison of them?
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