Config:) Redund (Redundancy) Submenu; Config): Refadj (Reference Oscillator Adjustment) - Comtech EF Data LBC-4000 Installation And Operation Manual

6.3.3.3

(CONFIG:) REDUND (Redundancy) Submenu

Appendix B. REDUNDANCY OPERATION
This menu branch is functional in LOCAL MODE ONLY.
6.3.3.4

(CONFIG): REFADJ (Reference Oscillator Adjustment)

The reference oscillator adjustment may be manipulated with this menu. Use the [][] arrow
keys to select a digit to edit, and then the [][] arrow keys to change its value. Press [ENT]
when done.
The default Reference Frequency tuning adjustment is 087, with allowable values from 000 to
255.
When an external reference oscillator is connected and set to 10 MHz, the following screen
appears:
When an external reference oscillator is connected and set to 5 MHz, the following screen
appears:
When an external reference oscillator is connected and set to other than 5 MHz or 10 MHz, the
following screen appears:
Front Panel Operation
Redundancy:
Mode State FrcBkup
Reference frequency
Adjustment = 087
EXTERNAL 10 MHZ
REFERENCE PRESENT
EXTERNAL 5 MHZ
REFERENCE PRESENT
EXTERNAL REFERENCE FREQ
MUST BE 5/10 MHz
LBC-4000 L-Band Up/Down Converter System
6–13
Revision 6
MN-LBC-4000