I could not resist any more, so got me a new LF/MF/HF receiver, the Target HF3 covering 30kHz - 30MHz
It will take a while to get used to the frequency settings, though I can see why it is made like that.
Otherwise the receiver is simple enough to operate, I used the same method of QRSS calibration as I did for the SW-1, so now it is test receiving the 30m QRSS band.
Just had the 50Hz sidebands in here, stopped a few minutes ago, presumable an OTH radar system.
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...
1 hour ago
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