Early development of synthesizers for receivers/transmitters during the 1970s-1980s gave crystal stability to radio gear. But instead of several crystals to determine an operating frequency, the new ...
A PLL VFO/controller for a multi-band SSB/CW transceiver, targeting Arduino Nano and si5351. The script is SP_VFO_Controller.ino. An initialiser script must be executed once to initialise EEPROM. This ...
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