Sea Tel 9797B-70 C-Band TX/RX, Installation And Operation Manual

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9797B-70 C-Band TXRX Installation
4-5
1. Assure that the antenna is restrained before hoisting. Check that all nuts on the base frame assembly
are tightened according the torque values listed below:
2. Using a four-part lifting sling, and with a tag line attached to the radome base frame, hoist the
antenna assembly to its assigned location aboard ship by means of a suitably-sized crane or derrick.
3. The radome assembly should be positioned with the BOW marker aligned as close as possible to the
ship centerline. Any variation from actual alignment can be compensated with the AZIMUTH TRIM
adjustment in the ACU, so precise alignment is not required.
4.5.2. Install Antenna/Radome/Base frame
Bolt, or weld, the legs of the radome base frame directly to the ship's deck. If the deck is uneven or not level,
weld clips to the deck and attach them to the legs of the radome base frame. When completed the radome
base must be level.
4.5.3. Cooling Unit Assembly - TX SYSTEMS ONLY
If cooling unit is supplied, refer to the drawings provided for detailed instructions on assembly and
installation of the cooling unit and any associated intake and exhaust diffusion ducting.
4.6. Install BDE Equipment
4.6.1. ACU & TMS
Refer to the Antenna Control Unit manual for installation of the ACU and the Terminal Mounting Strip.
4.6.2. Other BDE Equipment
Refer to the vendor supplied manuals for installation of the other below decks equipment.
4.7. Cable Terminations
4.7.1. 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.
4.7.2. 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.
4.7.3. Other BDE Equipment
Refer to the vendor supplied manuals for installation of the other below decks equipment.
4.8. Final Assembly
4.8.1. Mount RF Equipment (TXRX Only)
Install the RF equipment on the elevation beams (TXRX Systems ONLY) Connect the TXIF & RXIF cables, RF
Transmit and Receive waveguide sections from the appropriate C-Band feed to the appropriate SSPA or
TWTA and Radio package according to the block diagram.