Sea Tel 9797B-70 C-Band TX/RX, Инструкция по установке и эксплуатации

Страница: 24 / 110

Installation 9797B-70 C-Band TXRX
4-2
WARNING: RF Radiation Hazard - This stabilized antenna system is designed to be used with
transmit/receive equipment manufactured by others. Refer to the documentation supplied by
the manufacturer which will describe potential hazards, including exposure to RF radiation,
associated with the improper use of the transmit/receive equipment. Note that the
transmit/receive equipment will operate independently of the stabilized antenna system.
The ultimate responsibility for safety rests with the facility operator and the
individuals who work on the system.
WARNING: RF Radiation Hazard - Prior to working on the stabilized antenna system, the
power to the transmit/receive equipment must be locked out and tagged. Turning OFF
power to the Antenna Control Unit does NOT turn Transmit power output OFF.
The ultimate responsibility for safety rests with the facility operator and the
individuals who work on the system.
WARNING:
RF Radiation Hazard - When the transmit/receive system is in operation, no one
should be allowed anywhere within the radiated beam being emitted from the reflector.
The ultimate responsibility for safety rests with the facility operator and the
individuals who work on the system.
4.2. Site Survey
The radome assembly should be installed at a location aboard ship where:
1. The antenna has a clear line-of-sight to as much of the sky (horizon to zenith at all bearings) as is practical.
2. Direct radiation into the antenna from ships radar, especially high power surveillance radar arrays, is
minimized. The radome should be as far away from the ships Radar as possible and should NOT be mounted
on the same plane as the ships Radar (so that it is not directly in the Radar beam path).
3. The radome should be as far away from the ships high power short wave (MF & HF) transmitting antennas as
possible.
4. The Above Decks Equipment (ADE) and the Below Decks Equipment (BDE) should be positioned as close to
one another as possible. This is necessary to reduce the losses associated with long cable runs.
5. The mounting location is rigid enough that it will not flex, or sway, in ships motion or vibration. If the radome
is to be mounted on a raised pedestal, it
MUST have adequate gussets, or be well guyed, to prevent flexing or
swaying in ships motion.
If these conditions cannot be entirely satisfied, the site selection will inevitably be a “best” compromise between the
various considerations.
4.3. Preparing For The Installation
4.3.1. Unpack Shipping Crates
Exercise caution when unpacking the equipment.
4.3.2. Inspect / Inventory
Carefully inspect the radome panel surfaces for evidence of shipping damage. Inspect the pedestal assembly
and reflector for signs of shipping damage.
4.3.3. Prepare ADE Mounting Location
Prepare the mounting location for the Radome. If the radome is to be bolted to the deck (or a platform)
assure that the mounting holes have been drilled. Assure that the mounting hardware has obtained and is
readily available.
4.3.4. Preparing BDE Location
Prepare the mounting location for the Below Decks Equipment. These equipments would normally be
installed in a standard 19” equipment rack. Refer to the Antenna Control Unit manual for installation of the
ACU and the Terminal Mounting Strip.