Autumn starts in a few days bringing the promise of cooler days. So back to the 23cm project. I decided, based on what was in the junk box, to use a MAX2681 mixer. Reasonably cheap if you have to buy one I was able to salvage a couple from 900MHz data modems.
One of the unforeseen bonuses with this part is the input matching at 23cm.
The input impedance is 50-j133 ohms. So a 16nH inductor in series with the input pin will cancel the input reactance.
Too easy!
73's
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