I've been chasing J5UAP Guinea-Bissau for a couple of days (along with 5U5R and 9G5X), pulling what's left of my hair out. Then today happened... got after just a couple of calls on 17m at 1514 UTC. No upload to ClubLog, wasn't sure if the Q was good... then I found his own online log (www.cqafrica.net) which was updated after a few hours. Boom!
Spark Gaps and Coherers demonstrated and Measured by CuriousMarc
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*CuriousMarc provides a good demonstration of how spark transmitters work
with coherer detectors. His measurements are really illuminating. His
device j...
13 hours ago







(From 1978 WRTH)
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