Harris Constellation, Installation & Maintenance

Page: 143 / 292

Harris Corporation Constellation™
Transmitter Frequency Measurement 8-9
ROUTINE
MAINTENAN
C
E
•
Tx Assy, Model 2: should be approximately 5 dB below
high power
•
Tx Assy, Model 3: should be approximately 10 dB
below high power
Adjust if necessary.
14. Go to LOW PWR CALIB , and enter the value from step 13 .
Notes:
•
Use the F2 key for the decimal point.
•
You must enter 3 digits. For example, 30 dBm is entered as 30.0.
15. Exit. It will automatically return to high power.
16. Unlock the on-line Transmitter.
From the Keypad main menu, select
CONTROL > LOCK/IF LPBK > LOCK MOD/TX > CLR
Recording the Power Levels
17. Record the power levels along with the date and the name of the person
making the measurement in the “Routine Maintenance Log Form” (see the
end of this chapter).
Off-line Transmitter
18. When you have finished taking the measurement, you can either leave the
Transmitter on line or return it to the off-line status.
19. The standby Transmitter is now the primary Transmitter.
Switching the traffic back to the previous
Transmitter will cause a hit.