KA BAND OUTDOOR TWT AMPLIFIER
a) Install the O-ring gasket (supplied) in the output flange.
6. Position the interconnecting waveguide so that it aligns precisely with the waveguide
flange at the rear of the unit.
Figure2-3
Ka-Band TWTA Rear Panel
CAUTION!
If flange alignment is not precise or if the installation
is subject to motion or severe vibration, a flexible waveguide
section should be installed between the output of the Ka-Band
TWTA and the interconnecting waveguide.
7. After alignment is verified in all three planes, loosely attach the interconnecting waveguide
to the output waveguide flange of the Ka-Band TWTA with 4-40 stainless steel screws,
flatwashers, lockwashers, and nuts. Start all bolts and verify proper alignment.
8. A progressive tightening procedure is recommended. Tighten each bolt until the
lockwasher starts to compress and then proceed to the next bolt, until you have partially
tightened all the bolts.
9. Starting with the first bolt, fully tighten them to the desired torque level (4.3in.lbs. for 4-40
screws). Do not over-tighten the screws because this can strip the threads or distort the
mating flange.
10. Proceed to Chapter 3 for startup procedures.
D
OC
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2-7