Waiting on a NanoVNA to check out my antenna, not currently getting any spots.
Soldering 20m and 40m low pass filters from QRP Labs for RPi WSPR
Submitted 1 hour ago by pageflight@piefed.social to amateur_radio@lemmy.radio
https://media.piefed.social/posts/t4/R9/t4R9tSDmrqYcn8U.jpg
mushroommunk@lemmy.today 58 minutes ago
Any particular reason you didn’t lay the third ring flat to reduce coupling between all three?