MNC-0400-001
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REV H
Operation, Rack and Digital HPAs
The bottom line of the STATUS 1 Menu can have three different
messages:
•
If the amplifier is set up to automatically turn high voltage ON when
prime power is applied, the message will be
AUTO HIGH VOLTAGE ON
Note
To disable AUTO-HIGH VOLTAGE ON, press the softkey to the right
of the message. This can be done any time during the filament time
delay process.
•
If RF Inhibit is ON and High Voltage is ON, the message will be:
RF Inhibit ON
•
If neither of the above conditions exist, the message will be
Helix XX. X mA
where X = actual helix current in mA
Status 2 Menus and Screens
Status 2 Menu
The
Status 2 Menu
(top menu of Figure 7) is displayed any time
the [
Status2]
key is pressed. Only [
Softkey 4
] is active. This
menu displays three amplifier parameters that cannot be
changed by the user:
HelixV—
Current Helix Voltage (Cathode Voltage) in kilovolts.
Heater—
Total time (in hours) voltage has been applied to the
TWT heater (filament).
Beam—
Total time high voltage has been applied to the TWT.
When [
Softkey 4
] is pressed, the
Display All
Menu
is displayed.
See Figure 7.
Display All Menu
This menu presents summary amplifier data:
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