Experimental ELF/VLF 3 FULL DUPLEX signals for Mumble - BPSK125(live text messaging) - HD VOICE - CW

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Chuck Vaughn

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Feb 3, 2022, 1:48:42 PM2/3/22

to iCW - internet CW

- uses a sound card SDR MIXER to create an HD VOICE AUDIO signal with USB MODULATION at @(1.3Khz to 13Khz) - uses FLdigi to send LIVE, REAL TIME text messaging using BPSK125 at 125 hertz - uses CW to be sent out at 790 hertz due to the OPUS CODEC giving poor audio performance after its codec operations - the audio quality above 13Khz suffers incrementally the higher the freq goes... so all three of the test communication signals at ELF/VLF were constructed to operate below 13Khz

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