Bedienungsanleitung Garmin GMR Fantom 56 (Seite 5 von 6) (Englisch)

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TIP: If you need to specify a different antenna size, while

viewing the radar screen for the radar you want to change,

select Menu > Radar Setup > Installation > Antenna

Configuration > Antenna Size, and select the antenna size.

Front-of-Boat Offset

The front-of-boat offset compensates for the physical location of

the radar scanner on a boat, if the radar scanner does not align

with the bow-stern axis.

Measuring the Potential Front-of-Boat Offset

The front-of-boat offset compensates for the physical location of

the radar scanner on a boat, if the radar scanner does not align

with the bow-stern axis.

Using a magnetic compass, take an optical bearing of a

stationary target located within viewable range.

Measure the target bearing on the radar.

If the bearing deviation is more than +/- 1°, set the front-of-

boat offset.

Setting the Front-of-Boat Offset

Before you can set the front-of-boat offset, you must measure

the potential front-of-boat offset.

The front-of-boat offset setting configured for use in one radar

mode is applied to every other radar mode and to the Radar

overlay.

From a Radar screen or the Radar overlay, select Menu >

Radar Setup > Installation > Front of Boat.

Select Up or Down to adjust the offset.

Setting a Custom Park Position

By default, the antenna is stopped perpendicular to the pedestal

when it is not spinning. You can adjust this position.

From the radar screen, select Menu > Radar Setup >

Installation > Antenna Configuration > Park Position.

Use the slider bar to adjust the position of the antenna when

stopped, and select Back.

Specifications

Specification Measurement

Pedestal weight 15.8 kg (34.8 lb.)

Antenna weight 4 ft. antenna: 5.2 kg (11.4 lb.)

6 ft. antenna: 7.3 kg (16.0 lb.)

Power cable length 15 m (49 ft. 3 in.)

Network cable length 15 m (49 ft. 3 in.)

Antenna rotation speed 24 rpm and 48 rpm

NOTE: The antenna can rotate at 48 rpm

only when in single range mode, with

MotionScope

™

disabled, and for range

settings of 12 nm or lower.

Maximum wind load 80 kn

Temperature range From -15 to 55°C (from 5 to 131°F)

Humidity 95% at 35°C (95°F)

Water rating IEC 60529 IPX6 (protected against

heavy seas)

Bearing accuracy 0.25 degrees

Input voltage From 10 to 32 Vdc

Fuse Radar power cable, no voltage converter:

15 A, blade-type

Radar power cable, with voltage

converter (if applicable): 30 A, blade-type

Input power GMR Fantom

54 and 56

• Typical: 65 W

• Maximum: 170 W

Input power GMR Fantom

124 and 126

• Typical: 80 W

• Max.: 185 W

Specification Measurement

Input power GMR Fantom

254 and 256

• Typical: 150 W

• Max.: 260 W

Compass-safe distance 300 mm (11.8 in.)

Minimum Safe Operating Distances

When it is transmitting, the radar should be located in a position

on the vessel that is at least this far from people. IEC 60936-1,

clause 3-27.1, specifies the maximum distances from the

antenna at which radio frequency (RF) levels can be expected.

These minimum safe distances apply for a transmitting radar

with a rotating antenna, and are much larger when the antenna

is not rotating. If rotation of the antenna is obstructed for any

reason, the transmitter will automatically turn off.

IMPORTANT: The specified 100 W/m

minimum distance must

be maintained between the antenna and the occupational user

and the specified 10 W/m

must be maintained between the

antenna and the general public. Under such configuration, the

radio frequency radiation exposure limits set forth for a

population/uncontrolled environment are satisfied.

Model 100 W/m² 50 W/m² 10 W/m²

GMR Fantom 54 0.12 m (4.72 in.) 0.17 m (6.69 in.) 0.38 m

(14.96 in.)

GMR Fantom 56 0.13 m (5.11 in.) 0.18 m (7.09 in.) 0.40 m

(15.75 in.)

GMR Fantom 124 0.19 m (7.48 in.) 0.26 m

(10.24 in.)

0.59 m

(23.23 in.)

GMR Fantom 126 0.20 m (7.87 in.) 0.28 m

(11.02 in.)

0.62 m

(24.41 in.)

GMR Fantom 254 0.27 m

(10.63 in.)

0.38 m

(14.96 in.)

0.85 m

(33.46 in.)

GMR Fantom 256 0.28 m

(11.02 in.)

0.40 m

(15.75 in.)

0.90 m

(35.43 in.)

Antenna Specifications

Specification Measurement

Type End-fed slotted waveguide

Horizontal beam width 4 ft. antenna: 1.8 degrees

6 ft. antenna: 1.25 degrees

Horizontal side lobes -23 dB within ±10 degrees of main

-30 dB outside ±10 degrees of main

Vertical beam width 22 degrees

Polarization Horizontal

Dimensions

Item Measurement Description

185.9 mm (7

in.) Center of rotation to the rear of the pedestal

234.7 mm (9

in.) Center of rotation to the front of the pedestal

86 mm (3

in.) Center of rotation to the rear mounting holes

114 mm (4

in.) Center of rotation to the front mounting

holes

200 mm (7

in.) Distance between the mounting holes

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