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LF: EbNaut / Coherent PSK reception with SDR (-IQ) or similar radios

To: [email protected]
Subject: LF: EbNaut / Coherent PSK reception with SDR (-IQ) or similar radios
From: Wolfgang Büscher <[email protected]>
Date: Sun, 6 Dec 2015 11:33:09 +0100
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Greetings all,

After trying a couple of modifications to my SDR-IQ, I found the following site ..

http://g4hup.com/SDRlock.html

.. which describes how to lock the 66.6667 MHz 'ADC clock' in the SDR-IQ to an external 10 MHz reference.

Does anyone here have own experiences with this, or a similar circuit ?
Dividing the 10 MHz reference by three, and subtracting that from 10 MHz multiplied by 7 sounds intriguing, but a multi-pole crystal ladder filter to 'clean up' the resulting 66.6666666 MHz signal is easier said than done (..lacking such crystals in the junk box).

73,
  Wolf DL4YHF .


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