Harmonic ProView 2900 Installation Manual page 69

Chapter 5: Operation and Management
The following screen displays the DVB-S2 Receiver status menu:
1 Signal Quality 1 Signal Quality
1 Signal Quality 1 Signal Quality
2 2 2 2 C C C C /N
3 3 3 3 Link Margin Link Margin Link Margin Link Margin
4 4 4 4 MPEG PER MPEG PER
MPEG PER MPEG PER
5 Frequency Tune 5 Frequency Tune 5 Frequency Tune 5 Frequency Tune
6 Frequency Offset 6 Frequency Offset 6 Frequency Offset 6 Frequency Offset
7 Modulation 7 Modulation 7 Modulation 7 Modulation
8 FEC Rate 8 FEC Rate
8 FEC Rate 8 FEC Rate
9 Roll 9 Roll- - - - off 9 Roll 9 Roll
10 Spectral Inversion 10 Spectral Inversion
10 Spectral Inversion 10 Spectral Inversion
Figure 5-5 displays the corresponding DVB-S2 Status Web management 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
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.
© Harmonic Inc. Manual p/n 101543/Ver 1.0
Receiver Receiver Receiver Receiver
/N /N /N
off off off
Figure 5-5: ProView 2900 DVBS2 Receiver Status Screen
Signal Quality Signal Quality Signal Quality Signal Quality
< < < < 000 000 000 - - - - 100 000 100 100 100 > > > >
5-15 ProView 2900 Series/SW Version 1.94
ProView 2900 Status Menu
1 1 1 1 - - - - 3 3 3 3 - - - - 1 1 1 1
94[%] 94[%]
94[%] 94[%]
- - - - 8.00[dBm] 8.00[dBm] 8.00[dBm] 8.00[dBm]
21.10[dB] 21.10[dB] 21.10[dB] 21.10[dB]
0.0e- - - - 7 7 7 7 0.0e
0.0e 0.0e
1.000000 [GHz] 1.000000 [GHz] 1.000000 [GHz] 1.000000 [GHz]
+00011[KHz] +00011[KHz] +00011[KHz] +00011[KHz]
DVBS2 DVBS2- - - - N N N N - - - - QPSK DVBS2 DVBS2 QPSK QPSK QPSK
8/9 8/9
8/9 8/9
35% 35% 35% 35%
NORMAL NORMAL
NORMAL NORMAL
94
[%] [%]
[%] [%]