8. Wait for the system to perform the background
noise calculation. Read the Average Noise Level
value from the messages transmitted out the
maintenance port. This value must be greater
than 300 and less than 1300. An example of the
message sequence and format is as follows:
*** Averaging Background Noise ***
Average Noise Level = 750
Noise Threshold = 1450
9. Wait for the system to search for, find the
satellite, enter Tracking Mode and track the
satellite for a minimum of 30 seconds. Record
the average RF signal value reported from the
+POS: AZ, EL, RF messages. An example of the
message sequence and format is as follows:
+POS: 154.5 33.2 2521
10. The RF signal values while tracking shall be
greater than 2000 and less than 3000.
5.4.5 EchoStar Adapter Replacement
Estimated Time to Repair:
1
⁄
2
hour
Use the following procedure to replace the EchoStar Adapter:
1. Remove power from Antenna and unplug IRD
from AC power.
2. Observe static precautions.
3. Unscrew and remove DB9 cable connector from
the Adapter.
4. Unscrew thumbscrews securing Adapter to IRD.
5. Carefully remove Adapter from IRD card edge.
6. Install new Adapter on the IRD card edge.
Secure the Adapter and reinstall cable.
5-9
Maintenance
54-0144 Rev. C
