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I Ground connection
The transceiver and antenna tuner must have an
adequate RF ground connection� Otherwise, the
e cienc o t e transcei er an antenna tuner ma
be reduced� Also, electrolysis, electrical shocks, and
interference from other equipment may occur�
For the best results, use a 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 groun point ot er ise t e oltage i erence
(at the RF level) between the 2 ground points may
cause electrolysis�
R WARNING! When grounding to a metal hull, use
Zinc anodes to protect the hull from electrolysis� Ask
your dealer or installer for RF grounding details�
CAUTION:
• NEVER connect the transceiver to a "positive-
grounded vessel," otherwise the transceiver will
not function�
• Any external units, such as PC, printer, and so on,
must be properly grounded� We suggest using a
wide copper strap�
Ground system Example
I Power source
The transceiver requires a regulated DC power of
13�6 V and at least 30 A�
• Direct connection to a 12 V battery in your vessel
through the supplied DC power cable�
CAUTION: The supplied DC power cable MUST
be used to provide power to the transceiver� AVOID
exceeding a 3 m (10 ft�) length of the DC power
cable� When it is necessary to make a run of over
3 m, use a #6 or similar gauge wire with line fuses,
instead of the supplied DC power cable� The cable
should be a maximum of 6 m (20 ft�)�
Copper pipe
Metal object
CONNECTIONS AND INSTALLATION
Best ground points
• External ground plate
• Copper screen
• Copper foil
Acceptable ground points
• Stainless steel stanchion
• Through mast
• Through hull
• Metal water tank
Undesirable ground points
• Engine block
• Vessel's DC battery ground
Unusable ground points
(these connections may cause an explosion or
electrical shock)
• Gas or electrical pipe
• Fuel tank or oil catch pan
Copper screen
DC power cable connection
NOTE: Use terminals for the cable connection�
_
Black
Supplied
12V battery
DC power cable
+
Red
Crimp
Solder
9
9
71
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