Harmonic ProView 2900 Installation Manual page 70

Chapter 5: Operation and Management
DSNG Receiver Status
5.4.1.3.
To access the DVB-S2 Receiver status screen in front panel control interface go to
Status Receiver.
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/N C/N
C/N C/N
3 Eb/N0 3 Eb/N0 3 Eb/N0 3 Eb/N0
4 4 4 4 Link Margin Link Margin
Link Margin Link Margin
5 BER 5 BER 5 BER 5 BER
6 Frequency Tune 6 Frequency
6 Frequency 6 Frequency
7 7 7 7 Frequency Offset Frequency Offset Frequency Offset Frequency Offset
8 8 8 8 FEC FEC FEC Rate FEC
9 9 9 9 Spectral Inversion Spectral Inversion Spectral Inversion Spectral Inversion
Figure 5-6 displays the corresponding DSNG 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.
•
Eb/N0 – Received signal Eb/N0 measurement
•
Link Margin – Estimated C/N of the received signal relative to the C/N in EN 300-421 for
•
a given FEC rate
BER – Uncorrected FEC bits errors. BER is measured over 10
•
Frequency Tune – The value is dependent on the mode selected in
•
Root Configuration
•
•
NOTE
Displayed frequencies are L-Band frequencies.
© Harmonic Inc. Manual p/n 101543/Ver 1.0
Receiver Receiver Receiver Receiver
Tune
Tune Tune
Rate Rate Rate
Figure 5-6: ProView 2900 DSNG Receiver Status Screen
Signal Quality Signal Quality
Signal Quality Signal Quality
< < < < 000 000 000 000 - - - - 100 100 100 100
Receiver
When Frequency Drift Compensation is set On, the value of the frequency
tune displays the frequency of the incoming signal after frequency offset is set
Off.
When Frequency Drift Compensation is set Off, the value of the frequency
tune displays the actual frequency.
> > > >
Freq Drift Compensation (see Section 6.2).
5-16 ProView 2900 Series/SW Version 1.94
ProView 2900 Status Menu
1 1 1 1 - - - - 3 3 3 3 - - - - 1 1 1 1
100[%] 100[%] 100[%] 100[%]
1 1 1 1 9. 9.69 69[dB] [dB]
9. 9. 69 69 [dB] [dB]
09.94[dB] 09.94[dB] 09.94[dB] 09.94[dB]
+04.9 +04.9[ [ [ [ dB] dB]
+04.9 +04.9 dB] dB]
0.0e 0.0e 0.0e 0.0e- - - - 7 7 7 7
1.068000[ [ [ [ G G G G Hz] 1.068000 Hz]
1.068000 1.068000 Hz] Hz]
+02214[KHz] +02214[KHz] +02214[KHz] +02214[KHz]
5/6 5/6 5/6 5/6
NORMAL NORMAL NORMAL NORMAL
100 100 [%] [%]
100 100 [%] [%]
7
symbols.