Constellation™ November 2003
3-34 Installation and Commissioning
g. Use the UP/DOWN keys until the value = the power meter reading
+ the coupling loss shown on the monitor port label.
Notes:
• 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.
h. Go to LOW PWR CALIB, and enter the value from
step g
.
Notes:
• Use the F2 key for the decimal point.
• You must enter 3 digits. For example, 30 dBm is entered as 30.0.
i. Exit. It will automatically return to high power.
j. Unlock the on-line Transmitter.
From the Keypad main menu, select
CONTROL > LOCK/IF LPBK > LOCK MOD/TX > CLR
Recording the Power Levels
a. Record the power levels along with the date and the name of the
person making the measurement in the “Routine Maintenance Log
Form” (
Chapter 8
).
Off-line Transmitter
a. When you have finished taking the measurement, you can either leave
the Transmitter on line or return it to the off-line status.
b. The standby Transmitter is now the primary Transmitter.
Switching the traffic back to the previous
Transmitter will cause a hit.
If switching of Transmitter Assemblies is desired,
it should be done during low-traffic hours.
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