Bedienungsanleitung Furuno 1832 (Seite 36 von 63) (Englisch)

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¡ The compass safe distance should be ob-

served to prevent deviation of the magnetic

compass.

Model Standard compass Steering compass

1832 0.9 m 0.7 m

1932 1.1 m 0.8 m

1942 1.0 m 0.74 m

¡ Do not paint the radome (Model 1832) or

radiator aperture (Model 1932, 1942), to

ensure proper emission of the radar waves.

¡ When this radar is to be installed on larger

vessels, consider the following points:

(1) The signal cable run between the an-

tenna and the display comes in lengths

of 10 m, 15 m, 20 m and 30 m. What-

ever length is used it must be unbro-

ken; namely, no splicing allowed.

(2) Deposits and fumes from a funnel or

other exhaust vent can adversely affect

the aerial performance and hot gases

may distort the radiator portion. The

antenna unit must not be mounted

where the temperature is more than

70°C.

Mounting (Model 1832)

Figure 6-1 Typical antenna unit location

Unpacking the antenna unit

1. Open the antenna unit packing box care-

fully.

2. Unbolt the four bolts at the base of the ra-

dome to remove the radome cover.

6. INSTALLATION

This chapter provides the procedures neces-

sary for installation. Installation mainly con-

sists of the following:

¡ siting and mounting the display unit and

antenna unit

¡ connection of the signal cable and the

power cable

¡ establishing the ground

¡ checking the installation, and

¡ adjustments.

6.1 Antenna Unit Installation

Siting, handling considerations

¡ The antenna unit is generally installed either

on top of the wheelhouse or on the radar mast

on a suitable platform. Locate the antenna

unit where there is a good all-round view

rigging intercepting the scanning beam. Any

obstruction will cause shadow and blind

sectors. A mast for instance, with a diameter

considerably less than the width of the

radicator, will cause only a small blind sec-

tor, but a horizontal spreader or crosstrees in

the same horizontal plane as the antenna unit

would be a much more serious obstruction;

you would need to place the antenna unit well

above or below it.

¡ It is rarely possible to place the antenna unit

where a completely clear view in all direction

is available. Thus, you should determine the

angular width and relative bearing of any

shadow sectors for their influence on the

radar at the first opportunity after fitting.

(The method of determining blind and

shadow sectors appears later in this chapter.)

¡ If you have a radio direction finder on your

boat, local its antenna clear of the antenna

unit, to prevent interference to the direction

finder. A separation of more than two meters

is recommended.

¡ To lessen the chance of picking up electri-

cal interference, avoid where possible rout-

ing the signal cable near other onboard

electrical equipment. Also avoid running

the cable in parallel with power cables.

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