Hi everyone, Hi David, Hi Bruce,

I'm working in FreeDV on the old telephone network. I'm run into a problem
that I can't work with full-duplex because I think, due to the hybrid
circuit in the PSTN network. My solution is to adjust the center frequency
of the FreeDV 700D with different for TX (1000Hz) and RX (2200Hz). I hope
this help, I'm trying.

I need some advice from all of you about that. If it's OK. How can I adjust
the center frequency of the FreeDV?

P/ S: I can't use dial modem because I need fast sync.
Thanks very much.

Email : dich...@gmail.com
SĐT : 0904736189
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