FLdigi CW serial port keying, SIDEtone audio output, change from 1500 hz to any hertz with the RECRI KEYER's SDR mixer

[Chuck aa0hw]

RECRI KEYER SDR MODULES from: https://github.com/recri/keyer

when using FLdigi's SERIAL PORT KEYING mode....the CW audio output form FLdigi changes from whatever it was set to, to a hard wired 1500 hertz... to change it back to any pitch you want, an SDR MIXER MODULE is used from RECRI KEYER to do just that