KA BAND OUTDOOR TWT AMPLIFIER
Table 3-6. Helix and RF Settings Fault and Alarm Ranges: 250W/275W CW
Fault Name
Minimum
Setting
Factory
Preset
Default
Settings
Maximum
Setting
Remarks
Low RF
Alarm
0 W
0 W
0 W
250 W
See 3.8 for normal
operation.
Low RF
Fault
0 W
0 W
0 W
250 W
See 3.8 for normal
operation.
High RF
Alarm
0 W
230/255 W
230/255
W
230/275 W
See 3.8 for normal
operation.
High RF
Fault
0 W
250/260 W
250/260
W
250/285 W
See 3.8 for normal
operation.
High
Reflected RF
Fault
0W
20 W
20 W
20 W
Factory Set. Do not
change.
Helix Over
Voltage
13.0 kV
TWT NPV +
300V
14.0 kV
14.5 kV
Factory Set. Do not
change.
Helix Under
Voltage
0.00 kV
TWT NPV -
300V
13.5 kV
14.0 kV
Factory Set. Do not
change.
Helix Over
Current
1.0 mA
3.0 mA
3.0 mA
5.0 mA
Factory Set. Do not
change.
Helix voltage
in standby
1.00 kV
4.00 kV
4.00 kV
4.00 kV
Factory Set. Do not
change.
4. Press
FUNCTION
until.
The display reads “
LOW RF ALARM 0N
”
5. Continue to scroll through the remaining functions and record the value for each
parameter until you reach the last item on the list
.
6. You now have a listing of the factory set values for the items available via the FUNCTION
mode.
7. Press
FUNCTION
to return to the Main Menu.
NOTE: The amplifier should be in the STANDBY mode at this time.
D
OC
.01031492 R
EV
.3
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