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10 lines
534 B
Plaintext
10 lines
534 B
Plaintext
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FreeDV is a Digital Voice mode for HF radio. FreeDV allows any SSB radio
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to be used for low bit rate digital voice. Speech is compressed down to
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700-1600 bit/s then modulated onto a 1.25 kHz wide signal comprised of
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16 QPSK carriers which is sent to the Mic input of a SSB radio. The signal
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is received by an SSB radio, then demodulated and decoded by FreeDV. FreeDV
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700(B) rivals SSB in it's low SNR performance. At high SNRs FreeDV 1600
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sounds like FM, with no annoying analog HF radio noise.
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WWW: http://freedv.org/tiki-index.php
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