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echo: aust_modem
to: Russell Brooks
from: Peter McGrath
date: 1996-05-01 08:43:08
subject: Like #{at}% to a blanket

Hi Russell

 RB> Below is a normal connect to them

 RB> Speed                  28800
 RB> Modulation               VFC
 RB> Preemphasis     (-dB )   5/2
 RB> Recv/Xmit Level (-dBm)   33.2/18.1
 RB> SNR             ( dB )   31.3
 RB> Near Echo Loss  ( dB )   12.0
 RB> Far Echo Loss   ( dB )   21.5
 RB> Roundtrip Delay (msec)   26

So... it seems a SNR of ~31 is OK for a VFC 28k call. It would be
interesting to find out what the relevent ranges are for different
speeds/modulations.

regards, Peter.

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