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KA BAND OUTDOOR TWT AMPLIFIER
In this case,
•
Band 1 would be set up for a 250 MHz BW 28.35-28.60
•
Band 2 for 500 MHz BW 29.0-29.5 GHz.
Band switching can be commanded through the remote control port. The time to change bands
will be limited by the M&C timing, typically less than 50 milliseconds. There is no limit to the
number of times the band can be switched. Along with voltage settings, each band will also store
linearizer adjustments.
CAUTION! The tuning voltages and DAC settings are preset at the
factory and should NOT be changed except by factory-trained
technicians. Consult the CPI service center for training class
information.
B.3 Troubleshooting
B.3.1 Communication
If communications problems are occurring, check to make sure the addresses set in the amplifier’s
controller and the software match. To change the amplifier address in the controller, use the
Address Scanner program also located on the software utility CD (see below). This program can
also be used when the amplifier address is unknown.
Scan
first to establish a connection, and then
Set
the new address.
Select the new CIF configuration parameters and press the Reconfigure button. The new settings
will take affect once the amplifier’s power is cycled off and on.
Figure B-11 Address Scanner Screen
D
OC
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EV
.3
B-17