Chuck aa0hw's Blog – June 2021 Archive (1)

homebrew QRQ CW 7 Transistor TRF Receiver receiving an AM CW Signal on the LF band at 75Khz @75 wpm

75Khz soundcard SDR QRQ CW TRANSMITTER is built from the RECRI KEYER CW Keyboard - https://github.com/recri/keyer (the AD5DZ CW Keyboard can send directly at 75Khz if your sound card sample rate is set to at least 192Khz)

- CW KBD terminal…

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Added by Chuck aa0hw on June 7, 2021 at 1:20pm — No Comments

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