Level:
This is a measure of the stream signal power. It is expressed
according to the level mode selection made in the
Setup — ETR
view:
dBm: in decibels relative to a reference value of 1mW.
dBμV: in decibels relative to a reference value of 1μV
dBmV: in decibels relative to a reference value of 1mV
Signal to noise ratio: The signal to noise ratio in dB
Modulation error ratio: The modulation error ratio in dB
Frequency offset: The measured center frequency offset in kHz
Spectrum inversion:
The spectrum inversion parameter may have the value ‘Normal’
or ‘Inverted’.
Pre Viterbi BER: Pre LDPC BER: The bit error rate before Viterbi or LDPC error correction
Pre RS BER: Pre BCH BER: The bit error rate before RS or BCH error correction
Post BCH FER: The frame error rate after BCH error correction
1 PPS input lock:
A ‘bulb’ indicating reference signal lock when green, red indi-
cates no lock
SFN drift:
The SFN drift measured for the demodulated signal, with the
configured SFN drift zero offset subtracted
SFN network delay
LDPC: Low-density parity-check iteration counter (only for DVB-T2)
DVB-T/T2 status - DVB-T/T2 tuning info:
Name: The name assigned to the current frequency channel
Frequency: The channel center frequency in MHz
Transmission system: The transmission system can be DVB-T or DVB-T2
Channel spacing: The channel spacing in MHz
ETR thresholds:
The name of the ETR threshold template assigned to the current frequency
PID thresholds:
The name of the PID threshold template assigned to the current frequency
Service thresholds:
The name of the Service threshold template assigned to the current fre-
quency
DVB-T/T2 thresholds:
The name of the DVB-T/T2 threshold template assigned to the current
frequency
VBC thresholds:
The name of the VBC threshold template assigned to the current frequency
Please note:
If the signal power is stronger than -10 dBm there will be a warning shown by GUI. This is
to warn a user to apply some attenuation on the input to protect the analog front end on the VB252.
Click the Show additional parameters button to view L1 and PLP details.
In case of DVB-T signal the additional parameters are shown in the following manner:
180 VB2xx GigE User’s Manual version 5.4
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