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55
13
CONNECTION AND INSTALLATION
13
Ground connection
The transceiver and antenna tuner MUST have an
adequate RF ground connection. Otherwise, the over-
all efciency 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
Ships 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
See antenna and grounding consideration section
(pgs. 6365) for more details.
Copper pipe Metal object Copper screen
Power source
The transceiver requires a regulated DC power of
13.6 V and at least 30 A. There are 2 ways to supply
power:
Direct connection to a 12 V battery in your ship
through the supplied DC power cable.
Use PS-60
DC POWER SUPPLY
to connect to an AC
outlet.
CATION: The supplied DC power cable MUST be
used to provide power to the transceiver. AVOID
exceeding the 3 m (10 ft.) length of the DC power
cable. When it is necessary to make a run of over
3 m, use #6 or similar weight cable with line fuses,
instead of the supplied DC power cable for a max-
imum of 6 m (20 ft.).
DC power cable connection
NOTE: Use terminals for the cable connection.
12 V
battery
Supplied
DC power cable
+ red
_ black
Crimp
Solder
IC-M802_USA.qxd 02.7.9 10:58 Page 55
63


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