COBHAM SEA TEL 9711IMA-70, Installation Manual

Page: 44 / 178

Installation 9711IMA-70
3-24
3.9. Installing The ADE
WARNING: Hoisting with other than a webbed four-part sling may result in
catastrophic crushing of the radome. Refer to the specifications and drawings for
the fully assembled weight of your model Antenna/Radome and assure that
equipment used to lift/hoist this system is rated accordingly.
CAUTION: The antenna/radome assembly is very light for its size and is subject
to large swaying motions if hoisted under windy conditions. Always ensure that
tag lines, attached to the radome base frame, are attended while the antenna
assembly is being hoisted to its assigned location aboard ship.
3.9.1. Hoist the ADE
1. Assure that the antenna is stowed/restrained before hoisting.
2. Using the lifting harness arrangement previously described 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 antenna control unit, so precise alignment is not required.
4. Bolt, or weld, the feet of the base frame to the mounting surface aboard the ship.
3.9.2. Connecting the ADE
Refer to the System Block diagram, the Antenna Schematic and the general strain relief installation
information in the drawings section of this manual.
Sea Tel recommends that separate, dedicated, 220 VAC Power be provided for the Marine Air
Conditioner. This cable and breaker must be properly rated for the
18 AMP Inrush/Startup current of
this device. Do NOT combine this with the AC Power provided for the Antenna Pedestal and RF
Equipment.
1. Install strain reliefs in the desired locations of the base pan where the cable will enter the
radome.
2. Route each cable through a strain relief to it’s connection point. We recommend that you leave
a little excess service length on each cable (this can be left inside the louvered panels of the AZ
Post).
3. Remove the AFT louvered panel for access to the breaker and coax interconnect bracket.
4. Connect the Pedestal & RF Equipment AC Power Cable into the breaker box in the AFT louvered
panel. Conductors are to be connected as shown on the Antenna Schematic (bottom left). The
other end of the AC Power cable must be connected to a suitably rated breaker or UPS.
5. If a Marine Air Conditioner is installed: Route the dedicated, AC Power cable provided for the
Marine Air Conditioner to its external transformer on into the Marine Air Conditioner and
terminated to the AC terminals inside.
6. Connect the ADE AC Power Cable into the breaker box in the AFT louvered panel. Conductors
are to be connected as shown on the Antenna Schematic (bottom left). The other end of the
AC Power cable must be connected to a suitably rated breaker or UPS.
7. Connect the TXIF coaxial cable that runs between the above decks and below decks equipment
to the TX connector on the interconnect bracket inside the louvered panels of the AZ Post.
8. Connect the RXIF coaxial cable that runs between the above decks and below decks equipment
to the RX connector on the interconnect bracket inside the louvered panels of the AZ Post.
9. After the cables are routed as desired, tighten the strain reliefs to provide holding compression
on the cables.
10. Reinstall the AFT louvered panel to the AZ Post.
EAR Controlled - ECCN EAR99