I always did like the opening for Uncle Bill's Melting Pot on WBCQ. For this video I was using my Airspy HF+ Dual Port, and I was using SDRConsole for the software.
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https://www.youtube.com/watch?v=DMhrs0kUUcA
Originally I made this video to ask for help identifying this signal. but I figured out what it was by the end of this video.
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https://www.youtube.com/watch?v=ZijNQvEajsk