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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