Harris Constellation, Installation & Maintenance

Page: 76 / 292

Constellation™ November 2003
3-28 Installation and Commissioning
Receiver Frequency Measurement & Adjustment
1.
Record the operating frequency of the Receiver from the Keypad (hidden
menu).
CONFIGURATION > F1 + F3 or Ctrl B > RX FREQ
For 6/7 GHz radios: Enter 7 digits without the decimal point.
For 10/11 GHz radios: Enter 8 digits without the decimal point. Add zeros
(0) at the end if needed to complete the 8-digit field.
This frequency should match the one written on the Rx filter and the
station authorization.
2.
To measure the 100 MHz oscillator frequency, connect a frequency
counter to the REF MON port on the Receiver Assembly (
Figure 3-18 ).
3.
To adjust the oscillator frequency, use the Keypad hidden-menu command
CONFIGURATION > F1 + F3 or Ctrl B > RX 100MHZ TUNE
4.
Adjust the frequency to
100.000,000 MHz
±
(see table)
Year of Operation Tolerance
Initial adjustment ± 100 Hz
Thereafter ± 300 Hz