Series 04 Ku-Band TVRO Antenna

Troubleshooting and Maintenance
Series 04 Ku-Band TVRO Antenna
7.6. Antenna Stowing Procedure
WARNING: Antenna Pedestal must be properly restrained (stowed) to
prevent damage to wire rope isolators, isolator springs and/or antenna pedestal
mechanism during underway conditions when power is removed from the
antenna assembly.
The normal operating condition for the Sea Tel Antenna system is to remain powered up at all times. This
ensures that the antenna remains actively stabilized to prevent physical damage to the antenna pedestal
and reduce condensation and moisture in the radome to prevent corrosion. If, for some reason, the
antenna must be powered down during underway transits, it should be secured with nylon straps regardless
of sea conditions to prevent damage to the antenna system. Refer to the procedure below to secure the
antenna pedestal.
Equipment & Hardware needed:
• Two (2) Nylon web straps with buckle or ratchet mechanism. Nylon straps should be rated to
300 lbs. Max rated capacity.
Stowing procedure:
1. Point the antenna to Zenith, (90 degree
elevation angle), straight up.
2. Install one strap through the hole in one
side elevation beam, down under the
upper base plate, through the other
elevation beam hole. Cinch or ratchet
the web strap to just restrain the
antenna.
3. Install another web strap, or a large
tiewrap, around the azimuth tongue
counter-weights and down under one
corner of the upper base plate to restrain
azimuth rotation of the antenna.
CAUTION: Tighten the straps ONLY tight
enough to restrain the antenna. When
restrained the antenna will only be able to
move about an inch in any direction. DO
NOT OVER-TIGHTEN.
NOTE: Remove the straps, and/or Tiewraps, before applying power and returning the
antenna to normal operating condition.
7-54