Inspecting the Terrestrial Antenna and TDM, and the Satellite Data Modem (SDM)
Preventive Maintenance Inspection
E-6
MAY CONTAIN U.S. AND INTERNATIONAL EXPORT CONTROLLED INFORMATION
80-J4866-2 Rev. G
Inspecting the Terrestrial Antenna and TDM, and the Satellite Data Modem (SDM)
6.
Inspect the underside of the MDU to make
sure the tie wraps are securely tightened and
the cable is not damaged.
The illustration to the left is the underside of
the MDU showing the tie wraps.
1.
Make sure all cables are protected with
convoluted tubing and are in good condition.
Make sure cables have no kinks or bends and
are not being pulled tightly against metal
edges that can rub or cut the cables.
2.
Make sure there are adequate service (drip)
loops in the cables at the antenna and where
they enter the vehicle.
3.
Make sure grommets are in place around any
holes the cables pass through.
Make sure RTV sealant or refrigeration/tar
tape is intact and provides a good seal on any
holes that lead to the exterior of the vehicle.
Go to
if you are inspecting a terrestrial
unit.
Go to
if you are inspecting a satellite
unit.
05AAA_233
Cable Routing
Tie Wra
ps
Rear View
Cable tied to existing
boomerang brackets
Convoluted tubing
Drip loops
05AAA_223DQMCP
Satellite
Data Modem
Terrestrial
Antenna
Grommet
Refrigeration/
Tar Tape or
RTV Sealant
