User Guide

2001 NEW

CONNECTION AND INSTALLATION

■ Ground connection

The transceiver and antenna tuner MUST have an

adequate RF ground connection. Otherwise, the over-

all efﬁciency of the transceiver and antenna tuner in-

stallation will be reduced. Electrolysis, electrical

shocks and interference from other equipment could

also occur.

For best results, use 50 or 75 mm (2 or 3 inches) wide

copper strap and make the connection as short as

possible. Ground the transceiver and antenna tuner

to one ground point, otherwise the voltage difference

(in RF level) between 2 ground points may cause

electrolysis.

R WARNING— When grounding to a metal hull

Use Zinc anodes to protect the hull from electroly-

sis.

Ask your technical dealer, installer or refer to a

technical book, etc., for RF grounding details.

CAUTION: NEVER connect the transceiver to a

“positive-grounded ship,” otherwise the transceiver

will not function.

Ground system example

Best ground points

• External ground plate

• Copper screen

• Copper foil

Acceptable ground point

• Stainless steel stanchion

• Through mast

• Through hull

• Metal water tank

Undesirable ground points

• Engine block

• Ship’s DC battery ground

Un-usable ground points

(these connections may cause an explosion or electrical

shock)

• Gas or electrical pipe

• Fuel tank or oil-catch pan

Copper pipe Metal object Copper screen

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