Harmonic ProView 2900 - Page 69

Chapter 5: Operation and Management ProView 2900 Status Menu
© Harmonic Inc. Manual p/n 101543/Ver 1.0 5-15 ProView 2900 Series/SW Version 1.94
The following screen displays the DVB-S2 Receiver status menu:
Receiver
Receiver Receiver
Receiver 1
11
1-
--
-3
33
3-
--
-1
11
1
1 Signal Quality
1 Signal Quality1 Signal Quality
1 Signal Quality 94[%]
94[%]94[%]
94[%]
2
2 2
2 C
CC
C/N
/N/N
/N -
--
-8.00[dBm]
8.00[dBm]8.00[dBm]
8.00[dBm]
3
3 3
3 Link Margin
Link MarginLink Margin
Link Margin 21.10[dB]
21.10[dB]21.10[dB]
21.10[dB]
4
4 4
4 MPEG PER
MPEG PERMPEG PER
MPEG PER 0.0e
0.0e0.0e
0.0e-
--
-7
77
7
5 Frequency Tune
5 Frequency Tune5 Frequency Tune
5 Frequency Tune 1.000000 [GHz]
1.000000 [GHz]1.000000 [GHz]
1.000000 [GHz]
6 Frequency Offset
6 Frequency Offset6 Frequency Offset
6 Frequency Offset +00011[KHz]
+00011[KHz]+00011[KHz]
+00011[KHz]
7 Modulation
7 Modulation7 Modulation
7 Modulation DVBS2
DVBS2DVBS2
DVBS2-
--
-N
NN
N-
--
-QPSK
QPSKQPSK
QPSK
8 FEC Rate
8 FEC Rate8 FEC Rate
8 FEC Rate 8/9
8/98/9
8/9
9 Roll
9 Roll9 Roll
9 Roll-
--
-off
offoff
off 35%
35%35%
35%
10 Spectral Inversion
10 Spectral Inversion10 Spectral Inversion
10 Spectral Inversion NORMAL
NORMALNORMAL
NORMAL
Figure 5-5 displays the corresponding DVB-S2 Status Web management screen.
Figure 5-5: ProView 2900 DVBS2 Receiver Status Screen
The available options are:
• Signal Quality – Qualitative indicator of the received signal C/N relative to the maximum
C/N that can be measured without forcing the receiver to saturation. The signal quality is
calculated by: SQ[%]=C/N [dB]/36 *100
Signal Quality
Signal Quality Signal Quality
Signal Quality
94
[%]
[%][%]
[%]
< 000
< 000 < 000
< 000 -
--
- 100 >
100 > 100 >
100 >
• C/N – Shows the Carrier to Noise ratio.
• Link Margin – Shows actual signal reception strength.
• MPEG PER – Show packet error rate.
• Frequency Tune – This parameter points out the optimal frequency checked by the
ProView 2900 for obtaining the highest quality of the received signal.
• Frequency Offset – displays the deviation between the frequency inserted by the
operator and the frequency that was indicated by the Frequency Tune.
• Modulation – displays the configured modulation method
• FEC Rate – reports the selected FEC rate
• Roll Off – the configured Roll-Off factor value
• Spectral Inversion – When the Spectral Inversion mode is set to automatic (see Section
6.2), the value displayed is the one selected by the device. Otherwise, this parameter
displays the Spectral Inversion method that was selected manually.
NOTE
All displayed frequencies are in L-Band.