Isolating the transmit signal
Manual ACP test
To prevent signal cross talk, you use a procedure known as Automated Cross Polarization (ACP) to isolate the transmit signal from the receive signal. ACP test functions are included in the installation software.
The ACP software operates in two different
ACP fine pointing consists of testing using both the manual and automatic modes and adjusting the antenna by small increments (if necessary) until it passes both the manual and automatic ACP tests.
Follow the general instructions below for the ACP tests. Use the installation software screens to initiate tests and see the test results.
First run a manual ACP test:
1.Lock down all antenna adjustment nuts and bolts.
2.Initiate the manual ACP test by selecting the manual cross polarization test type.
If the manual ACP test passes, stop the test and proceed to Automatic ACP test on page 68.
If the manual ACP test fails, let the test continue and follow these steps:
1.Make small, 1° or less changes in polarization while observing the transmitter isolation.
2.Peak the polarization to the highest possible transmitter isolation.
3.Tighten the polarization lockdown nuts.
4.Check the signal strength.
When the manual ACP test passes, stop the test and proceed to Automatic ACP test.
Chapter 7 • Pointing the antenna
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