6.14.4 QAM - RF overview
The RF parameters and measurements list gives a status overview of all monitored
QAM frequencies from the selected RF input. The parameters and measurements in
this list refer to the last completed monitoring period or, for a stream currently
monitored, the current monitoring period.
List of RF parameters and measurements:
Frequency:
The stream frequency that the associated parameters apply
to
Symbol rate:
The detected QAM symbol rate
Modulation:
The QAM modulation mode:
16
,
32
,
64
,
128
or
256
QAM.
Mode:
The QAM transmission mode: DVB-C (Annex A), QAM-B
(Annex B) or 8VSB
TS sync:
Transport stream sync:
yes
or
no
Min level:
The minimum RF signal level
Max level:
The maximum RF signal level
Min SNR:
The minimum signal to noise ratio
Min MER:
The minimum modulation error ratio
Max pre FB:
The maximum bit error rate before forward error correction
Max post FB:
The maximum bit error rate after forward error correction
Max CFO:
The maximum center frequency offset (only available for
VB262)
Max SRO:
The maximum symbol rate offset (only available for VB262)
PROBE USERS' MANUAL VERSION 5.0
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