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CA/CR40/42/50/52 Installation manual Chapter 11

11.7 Installation of the GPS / DGPS antenna

The antenna must be placed in a position where tall con-

structions, steel wires, masts, etc. do not obstruct the view

to the satellites. Do not, however, mount the antenna in the

top of a mast or tower, as this may degrade the COG and

SOG readings, especially if DGPS is used. Do not place

the antenna close to sources of electrical interference, such

as radar, satcom, etc. If installing the GPS antenna close to

other antennas it must be placed either above or below the

radiation beams. There is full coverage down to 20° below

the horizon.

Beam area – avoid installing the GPS antenna inside

the beam areas.

Mounting of DGPS antenna MGL-3

Mount the antenna on a standard US 1” 14 thread pipe,

or optional standard antenna mount. Tighten firmly, but

onlybyhand– no use of tools. Attach the antenna cable

to the TNC socket.

Mounting of GPS antenna RS5640

Loosen the screw (1) of the antenna adapter. Guide the antenna

cable (2) through the adapter and connect it to the antenna.

Screw the US 1” 14 mount adapter (3) firmly onto the optional

antenna mount (4). Press (5) the antenna into the adapter and

turn it (6) approx. ½ to 1 turn counter clockwise to “catch” the

thread. Turn (7) clockwise 1 to 2 turns and firmly secure the

antenna with the lock screw (1).

) Do not close the small ventilation hole at the bottom, and do

not attempt to open the antenna.

VHF

Satcom Radar

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Airmar 300WX Installationshandbuch Seite 16