One thing I forgot to mention: In Olivier F5LVG's DC receiver article back in SPRAT 100, he casually mentioned building a transformer for his mixer by taking two inductors of the appropriate values and GLUING THEM TOGETHER. What a great idea! I had to try it. I did. Picture above. It worked in my Ceramic DC receiver, but the trifilar transformer from Farhan in India worked better. Perhaps the coupling was tighter. But hey, it worked. Three cheers for Olivier.
Re: BAT DXing or noise hunting ….
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So during your testing what did you find, bats, arcing or ??
4 hours ago