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A8 Installation Guide_ R3 Hardware Platform
TPS13-010_rev1.0
Figure 12-9
Wrap the Second Layer with Rubber Tape
Figure 12-10 Second Layer Finished
Figure 12-11
Wrap the Third Layer with Electrical Tape
Figure 12-12 Third Layer Finished
12.6.
RF Cable-to-Antenna Connection
1.
Tighten a RF cable-to-antenna connection with a torque wrench to the proper
torque limit to ensure that correct internal seals and surface contacts are made.
If a torque wrench is not available, first tighten the connection to finger tight,
then tighten it with a wrench for an additional ⅛to ¼ turn from the finger tight
position.
2.
Start wrapping a layer of electrical tape from 1” (25mm) below the cable
connector clamping nut. Overlap the tape to half –width. The tape should
extend to cover the cable connector body, until 1/4” (6mm) below the edge of
the cable connector. Avoid making creases or wrinkles. Smooth the tape edges.
3.
Start wrapping a layer of butyl rubber tape 1” (25mm) below the electrical tape.
Overlap the tape to half –width. Finish the wrap at the base of the antenna port
and cut the tape. Take extra care to make sure that the cable connector-
antenna port junction is tightly sealed. Press the tape edges together so that
there are no gaps. Press the tape against the cable connector body and the
antenna port.
4.
Start wrapping a layer of electrical tape 1” (25mm) below the butyl rubber tape,
overlapping at half-width. Finish the wrap at the base of the antenna port and
