As far as I can tell this ultra-simple transceiver has a passive receiver. It was designed initially by PY2OHH and this version appeared in this Canadian club magazine. Others have made versions for other bands.
Clearly with such an insensitive receiver, it is better to call others calling CQ as you may not hear others on the frequency. The RX sensitivity will depend how good the headphones are.
See https://www.calameo.com/read/0076654746ade7e23a716 .
See also https://hackaday.com/2024/07/12/tiny-transceiver-gets-it-done-with-one-transistor/ .
No comments:
Post a Comment