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Old 19th Jul 2019, 11:09 am   #4
G6Tanuki
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Join Date: Apr 2012
Location: Wiltshire, UK.
Posts: 13,951
Default Re: Use of a Ceramic Resonator in a BFO

The big problem I can see here is that the ceramic resonator will work on a fixed frequency, whereas a BFO/CIO really needs to be tunable so you can put it on the appropriate side of the signal.

Will the stability degrade if you try 'pulling' it VXO-style? Depending on the style of resonator you may be able to buy 100 of them cheap off Alibaba, check their resonant frequencies, and then use the two most-widely-differing ones for your sideband-select switch.
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