0-29 MHz WebSDR, University of Twente, Enschede, Netherlands:
http://websdr.ewi.utwente.nl:8901/
QRZ database:
https://www.qrz.com/db
morse expert:
(https://play.google.com/store/apps/details?id=com.ve3nea.morse_expert&hl=en)
Post #842
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