IRD-2900 Series Professional Integrated Receiver ... - TBC Integration

IRD-2900 Series
Professional Integrated Receiver Decoders
5 Frequency Frequency Tune Tune
1. 1.000000
1. 000000 [GHz]
[GHz]
6 Frequency Frequency Offset Offset
+0 +00011 +0
0011 0011[KHz]
[KHz]
7 Modulation
Modulation Modulation
DVBS2 DVBS2-N-QPSK
DVBS2 QPSK
8 FEC FEC Rate Rate
8/9
8/9
9 Roll Roll-off
Roll off off 35%
35%
10 Spectral Spectral Inversion
Inversion Inversion
NORMAL
NORMAL
Figure 4-57 displays the corresponding Web management screen.
Figure 4-57: IRD-2900 DVBS2 Status Screen
The Receiver status screen contains the following parameters:
• 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 Signal Signal Quality
Quality
< < 000 000 - 100 100 >
Signal Quality values range from 0 to 100%
• C/N – Shows the Carrier to Noise ratio.
• Link Margin – Shows actual signal reception strength.
• MPEG PER – Show packet error rate.
94 [%]
[%]
• Frequency Tune – This parameter points out the optimal frequency
checked by the IRD-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 4.2.2), the value displayed is the one selected by the device.
Otherwise, this parameter displays the Spectral Inversion method that was
selected manually.
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