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ATS33 EQM Threshold Value
S Register 33 is used to define the rate of change in the EQM (Eye Quality Monitor) value the
modem will tolerate before initiating an equaliser retrain sequence. This S Register applies to
V.32, V.32bis, V.FC & V.34 only.
By setting this register with a low value, the modem will demand a high quality connection.
Setting a high value in S33 will allow the modem to operate on degraded lines without invoking
retrains.
A value of zero will also disable automatic EQM retraining for V.32, V.32bis, V.FC, & V.34.
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The value in this register should only be altered by people with previous EQM
experience. Changing the EQM value will affect the data throughput and
reliability of connections.
Default
3
Example
ATS33=5 Set EQM change rate threshold to 5
Range
0-255