KA BAND OUTDOOR TWT AMPLIFIER
2-2
2.4.1 Amplifier
Installation
Refer to the appropriate Outline Drawing in Chapter 7 “Drawings” for outline and mounting
information.
The amplifier may be mounted using the six tapped holes located on the side (refer to the Outline
Drawing,
01031382
, in Chapter 7, “
Drawings”
). These holes are ¼-20 UNC-2B thread and are 0.50
inch deep. In order to provide secure mounting, screws with locking hardware must be used in all
six holes.
If the amplifier is mounted to an antenna, the structure must be capable of supporting the
additional load of the amplifier plus any wind loading effects, which may occur. It is
recommended that locations subject to electrical interference, such as that from motor contactors,
be avoided.
The amplifier is air-cooled. The intake and exhaust areas must not be blocked. For further
information see the outline drawing and the yellow Operational Warnings document located at
the front of this manual.
2.4.2 Cooling
Considerations
The Ka-Band TWTA is forced air-cooled by an internal fan that draws air into the bottom of the
unit. The air is exhausted through ducts located on the front panel. Refer to outline drawing,
01031382
, in Chapter 7, “
Drawings”
.
To insure proper operation of the amplifier, the following guidelines must be observed:
•
There must be at least two inches of clearance on the bottom of the unit (air intake).
•
There must be at least four inches of clearance on the end of the unit that has the
exhaust ducts (the end with the visible cooling fins).
•
The hot exhaust air must be directed away from the air intake area.
•
The area below the air intake must be free of foreign material, loose dirt, debris,
and any other material that may be drawn toward the unit and block the air intake
area.
INSTALLATION AND OPERATION MANUAL
