The receiver is mostly done on my 15-10 rig, and I am following Farhan's BITX20 advice: "pause at this point and listen to the receiver that you have built."
In the video I mention a problem with out-of-band signals. I was hearing shortwave broadcast signals (Brother Stair!) and even strong 20 meter CW signals. I thought the problem may have been with the bandpass filters, but after thinking about it I focused on the diplexer coming out of the product detector. I put a simple diplexer (from W7EL's Optimized Transceiver) in there and the problem disappeared. I still plan on beefing up the Bandpass Filters -- the dual tuned circuits I have been using are, I think, inadequate. I needed some more space on the wood board so I installed a sort of "back porch" -- you can see it in the video. I will build a power amplifier (RD6 or RD16) and a mic amp. Soon I will be on 15 and 10 with this rig. On this one, I am going the full "radical fundamentalist homebrewer" route: no ICs, no manufactured PC boards, no VFOs from old Yaesus.
Re: BAT DXing or noise hunting ….
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So during your testing what did you find, bats, arcing or ??
4 hours ago