Troubleshooting
8-110
Chapter 8: Service & maintenance
98-133966-G1
8.8.7
LNB test
To check the two LNBs, run four different signal level tests:
1. First test for testing the Co-pol LNB, on an RX frequency. in the low
band (<11.700 GHz)
2. Second test for testing X-pol LNB on a frequency in the low band
(<11.700 GHz)
3. Third test for testing the Co-pol LNB, on an RX frequency in the high
band (>11.700 GHz)
4. Fourth test for testing X-pol LNB on a frequency. in the high band
(>11.700 GHz)
Find a satellite that covers the area that you are located in. Use for
example LyngSat. (Use a DVB transponder with a good solid signal.)
8.8.7.1
First signal test: Co-Pol LNB / low band
1. Set up the satellite profile as follows.
RX: RF < 11.700 GHz, HOR, RX LO = 9.75 GHz (in the below example
0.8 W and 10.747 is used)
TX: RF 13.800z , Co-pol, LO = 12.800GHz
This tests the Co-Pol LNB in the low band.
2. Activate the profile.
See that there is full or near full bar readings in the signal bar on the
Dashboard, and that the signal level is >200 (pwr).
Figure 8-144: First signal test: Co-Pol LNB / low band
SAILOR900TM.book Page 110 Monday, September 16, 2013 11:01 AM
Summary of Contents for Sailor 900 VSAT
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