Bedienungsanleitung Garmin GMR 24 (Seite 4 von 12) (Englisch)

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Garmin Radome Installation Instructions

Installation

Radome Installation

The following section covers the installation and setup of the Garmin radome. The Garmin radome only operates with Garmin chartplotters

through a Garmin marine network. See your Garmin dealer or the Garmin Web site for more details.

To complete the installation, you need the appropriate fasteners, tools, and mounts. These items should be available at most marine dealers.

Always wear safety goggles, ear protection, and a dust mask when drilling, cutting, or sanding. When drilling or cutting, always check rst

to see what is on the other side of the surface. If you experience difculty with the installation, contact Garmin Product Support or seek the

assistance of a professional installer.

Installation Guidelines

To maximize the performance of the radar, observe the following installation guidelines:

• An ideal radome mounting location is high above the ship’s keel line with a minimal part of the vessel’s structure or rigging blocking

the radar beam. Obstructions in the path of the radar beam may cause blind and shadow sectors, or generate false echoes. The higher the

installation position, the further the radome can detect targets.

• Avoid mounting the radome on the same level as smoke stacks, horizontal spreaders, or crosstrees on a mast. Do not install the radome near

heat sources where it may be subjected to smoke or hot air from smoke stacks or heat from lights.

• The mounting surface or platform should be sturdy enough to support the weight of the radome (GMR 18/18 HD = 7.17 kg/15.8 lbs, GMR

24/24 HD = 9.12 kg /20.1 lbs), as at as possible, and parallel with the vessel’s water line.

• It is recommended that the radar radome be mounted out of range of personnel (horizontal beam width above head height). When the radome

is transmitting, do not look directly at the antenna at close range; eyes are the most sensitive part of the body to electromagnetic energy.

When properly installed and operated, the use of this radar conforms to the requirements of ANSI/IEEE C95.1-1992 Standard for Safety

Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields.

• A “Compass Safe Distance” must be maintained between a compass and the radome. The Compass Safe Distance is measured from the

center point of the compass to the nearest point on the radome.

• Standard compass = 1 m (39

• Standby Steering and Emergency compasses = 0.5 m (19

" )

• Mount other electronics and cables more than 2 m (78

") from the path of a radar beam. A radar beam can normally be assumed to spread

25° vertically above and below the radome’s radiating element. For vessels with higher bow angles at cruise speed, it may be helpful to

lower the angle so the beam points slightly downward to the waterline while at rest. Shims may be used as necessary.

• Install the radome away from antennas or other electronics. GPS antennas should be either above or below the radar beam path of the

radome. Mount at least 1 m (39

") from any equipment transmitting or cables carrying radio signals, such as VHF radios, cables, and

antennas. In the case of Single Side Band SSB radios, the distance should be increased to 2 m (78

" ). IEC 60936-1, clause 3-27.1, states

maximum distances from the antenna at which RF (radio frequency) levels can be expected.

(100W/m squared = 121.92 cm [48"]) (10W/m squared = 274.32 cm [108"])

• The radar radome transmits electromagnetic energy. It is important that the radar is turned off or the DC power input is disconnected when

personnel are required to come close to the radome to perform work on the radome assembly or associated equipment.

12.5°

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