Harris Constellation, Installation & Maintenance

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Constellation™ November 2003
11-14 Field-Replaceable Units
Transmitter Turn-on Procedure
1.
On the Transmitter Assembly, press the TX switch to the ON position.
2.
On the Power Supply, press the PWR switch to the ON position to turn on
the power supply.
Go to page 8-3 and follow the steps under "Transmitter Frequency Measurement"
and "Transmitter Power Measurement" .
MHSB System
1.
Use the Keypad command to take the switched unit out of lock status.
CONTROL > LOCK/IF LPBK > LOCK MOD/TX, CLR
CONTROL > LOCK/IF LPBK > LOCK DMOD/RX, CLR
2.
The standby RF units are now the primary RF units.
Switching the traffic back to the previous RF units
will cause a hit.
3.
If switching of RF units is desired, it should be done during low-traffic
hours.
Table 11-1: Required test equipment
Test Equipment Model
Universal Frequency Counter with 10-digit
accuracy
Agilent 53131A or equivalent
Power meter with power sensor
Agilent E4418B and 8485A
or equivalent