Comtech EF Data XPA-200, Installation And Operation Manual

Page: 74 / 96

XPA200-7984-I-OPT1, X-Band SSPA Maintenance and Troubleshooting Maintenance and Troubleshooting
XPA200-7984-I-OPT1, Rev.2 6-2
6.2 Maintenance Testing
Use the instructions in Section 2.0 for installing the SSPA
for checkout, and the procedures in Section 3.0, System
Operation, for operating the SSPA.
The SSPA is a X-Band SSPA with an RF output level of +53.0
minimum dBm at 1 dB compression.
6.2.1 Test Point Samples
The RF input and output can be monitored at the RF Sample
Test Points on the front panel. Type N connectors are provided.
The sample RF input level is -20 dBc nominal, and the RF output
level is -40 dBc nominal. Actual measured data for these sample
ports is located on the front panel.
6.3 Troubleshooting
SSPA operating problems can be identified by first observing
the status indicators on the front panel. When a fault condition
is indicated, the specific fault, or faults, can be identified in
the Current Faults Function Menu, Figure 3-4, which is accessed
through the local operation key-pad and displayed on the LCD
display located on the front panel. The status of SSPA functions
is displayed in the Monitor Status Functions Menu, Figure 3-3.
Refer to paragraph 3.3, operation, for a description of the SSPA
command functions; also, check the status of the mute condition
in the configuration menu (i.e.: Mute = “On” means that the
amplifier will be muted.)
6.3.1 SSPA Faults
Check the Monitor Status Functions Menu for possible faults,
or an indication of a marginal performance tolerance condition.