Installation 14400MK2-21 C/Ku-Band TVRO
3-20
3.6. Install BDE Equipment
3.6.1. ACU & TMS
Refer to the Antenna Control Unit manual for installation of the ACU and the Terminal Mounting Strip.
3.6.2. Other BDE Equipment
Refer to the vendor supplied manuals for installation of the other below decks equipment.
3.7. Cable Terminations
3.7.1. At The Radome
The TX and RX, or TVRO IF, cables must be inserted through the cable strain reliefs at the base of the radome.
Apply RTV to the strain relief joints and tighten the compression fittings to make them watertight. Attach the
pedestal cable adapters to the TX and RX, or TVRO IF, cables from below decks. Refer to the System Block
Diagram.
AC Power cable for the Antenna Pedestal and RF Equipment is routed into the AC Power Breaker box and
connected to the breaker terminals.
Sea Tel recommends that separate, dedicated, AC Power be provided for the Marine Air Conditioner (Do NOT
combine with the AC Power provided for the Antenna Pedestal and RF Equipment). This AC Power cable is
routed into the Marine Air Conditioner and terminated to the AC terminals inside.
3.7.2. ACU & TMS
To Connect AC Power, Gyro Compass Connection and IF Input refer to the Antenna Control Unit manual.
Installation of optional (remote) Pedestal, and /or Radio, Monitor & Control connection(s) from a PC
Computer are also contained in the ACU manual.
3.7.3. Other BDE Equipment
Refer to the vendor supplied manuals for installation of the other below decks equipment.
3.8. Final Assembly
3.8.1. Remove Stow Braces/Restraints
Remove the restraints from the antenna and verify that the antenna moves freely in azimuth, elevation, and
cross level without hitting any flanges on the radome.
3.8.2. Verify all assembly and Wiring connections
Verify that all pedestal wiring and cabling is properly dressed and clamped in place.
3.8.3. Balance Antenna Pedestal
Assure that the antenna assembly is balanced front to back, top to bottom and side to side by observing that
it remains stationary when positioned in any orientation. Refer to the Maintenance section for complete
information on balancing the antenna.
3.9. Power-Up The ADE
Turn Pedestal AC power breaker ON.
3.9.1. Initialization
Turn the pedestal power supply ON. The PCU will initialize the stabilized portion of the mass to be level with
the horizon and at a prescribed Azimuth and Elevation angles. The antenna will go through the specific
sequence of steps to initialize the level cage, elevation, cross-level and azimuth to predetermined starting
positions. Each phase must complete properly for the antenna to operate properly (post-initialization). Refer
to the initialization text in the Troubleshooting section in this manual. Observe the Initialization of the
antenna pedestal.
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