Comtech EF Data SFC4200 - Manual (Page 40)

User Interfaces SFC4200/SFC1275G Synthesized Frequency Downconverter
4-16 TM054 - Rev. 4.0
The Config Field (Configuration) indicates the status of the converter and is defined as follows:
SNGL: Indicates that the converter is a standalone unit.
1:1: Indicates that the converter is in a one-for-one backup
configuration.
1:8: Indicates that the converter is in a one-for-eight backup
configuration.
Figure 4-17. Configuration Menu
4.2.10 Reference Menu
The Reference Menu (Figure 4-18) allows the operator to fine-tune the 10 MHz ovenized
frequency standard over a range of
±
999 PPB. This menu also contains a clock that indicates
the total number of hours the unit has been in operation since the reference oscillator was first
installed.
The Reference Menu is as follows:
Figure 4-18. Reference Menu
OPPB: This field contains the offset of the 10 MHz frequency
standard in PPB. When the oscillator is first installed, or
when the oscillator has been coarse-calibrated, this
value will first be set to 000 PPB offset. The operator
can change the offset manually by placing the cursor in
this field and incrementing or decrementing the value.
Press <ENTER> to store the value.
ELAPSED HOURS: This field indicates the number of hours the converter
has been in operation since the frequency standard was
first installed.