Appendix A
This Document contains proprietary and confidential information of Ophir RF Inc.
March 28, 2023 Rev: H
1.8 User Configuration Options
Table 4 explains the operation of the run-mode menus. The following general
considerations apply:
o These menu options are available to the user to select the default system settings.
o Enter the User Configuration Menu by pressing and holding down then ‘GAIN’
and ‘ALC’ buttons on the front panel simultaneously during power-up. Release
when top display line reads Configuration.
o Cycle through menu items using the and keys on the front panel. Make
selection by pressing the ‘MODE’ key. Selections result in context-sensitive
prompts for sub-items.
Table 4. User Configuration Mode and Status Displays
Address = XX
Where
XX = 1 to 31
Allows user to change the GPIB / IEEE-488 device
address of the Amplifier.
Valid address values are from 1 to 31.
This item will not appear if GPIB Interface has been
disabled in the System Calibration Options.
Startup Option:
Power display
Display dBm or
Display Watts
Sets default units used in displaying power.
The default power-up mode for the amplifier is
Standby. This cannot be changed.
Startup Option:
Gain /ALC
ALC: X.X (in units of dBm or Watts)
or
Gain: XX% (in units of percent)
Startup Option:
ALC Response
Filtering: x
Where x = 0 - 9
Allows choosing between fast and slow response for
the Automatic Level Control (ALC) function. 0=
Minimal filtering, 9= Maximum filtering.
Startup Option:
Initial Gain
Gain: XX.X%
Where x = 00.0 to 100.0
Allows choosing between 0% attenuation to 100%
attenuation at startup. Where 0% is maximum, and
100% is minimum.
Startup Option:
Initial ALC
ALC: XX.X dBm
Where x = set by Ophir
RF, Min. and Max. value
Allows choosing between Minimum ALC value (set
by Ophir RF, depending on amplifier’s output power
level) to Maximum ALC value in dBm at startup.