18
7
CONNECTIONS
AND
INSTALLATION
• Ground connection
The transceiver and antenna tuner MUST have an
adequate ground connection. Otherwise, the
overall
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 the heaviest gauge wire or
strap
available and make the connection as short as
possible. Ground the transceiver and antenna tuner
to one ground point, otherwise voltage differences
between 2 ground points may cause electrolysis.
~
CAUTION: The IC-M710 has either a negative
~
ground or floating ground depending
on
version.
~
NEVER connect the negative ground type to a
~
"plus-grounding ship" otherwise the transceiver
~
will not function.
•
Ground
system
example
ro1
]~+<Rl
Tnnnoononnnonn
lt
ooQJIQQ
9~
•
Transceiver
•
Good
ground
points
- Ship's ground terminal
- External ground plate
- External copper screen
•
Acceptable
ground
points
- Stainless steel tuna tower
- Stainless steel stanchion
- Through mast
- Through hull
-
Metal water tank
• Undesirable
ground
points
(these points may cause noise or electrolysis)
- Engine block
-Keel
bolt
• Unusable
points
(these connection may cause
an
explosion or
electrical shock)
- Gas or electrical pipe
-Fuel
tank
- Oil-catch pan
r------'ljl
:n
J J
~
l'-----------,
Optional
AT-130/E
Copper
pipe
Metal
object
• Power source
The transceiver requires regulated DC power of 13.6
V and at least 30
A.
There are 3 ways to supply
power:
- Direct connection to a 12 V battery in your ship
through the supplied
DC power cable.
- Use the PS-60
DC
POWER
SUPPLY
to connect to
an
AC outlet.
- Use the PS-66
DC-DC
CONVERTER
to connect to a
19-32
V DC power source.
%
~
CAUTION: The supplied DC power cable
~
MUST
be
used to provide power to the trans-
~
ceiver. AVOID exceeding the
3m
(10ft.)
length
~
of the DC power cable. If it is necessary to make
~
a run of over 3
m,
use #6 or similar cable instead
~
of the supplied DC power cable for a maximum
~
run of 6 m (20ft.)
Copper
screen
• DC
power
cable
connection
~
NOTE:
Use
terminals
for
~
the
cable
connection.
c;p
or
~Solder
w
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