Icom IC-M710RT [26/32] I ground connection

Icom IC-M710RT [26/32] I ground connection
22
7
CONNECTIONS AND INSTALLATION
Ground connection
The transceiver, remote controller RC-21 and an-
tenna tuner MUST have an adequate ground connec-
tion. Otherwise, the overall efficiency of the
transceiver and antenna tuner installation will be re-
duced. 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 possi-
ble. Ground the transceiver, RC-21 and antenna tuner
to one ground point, otherwise voltage differences be-
tween 2 ground points may cause electrolysis.
u CAUTION: The IC-M710RT 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
Good ground points
Ships 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 electrolysis)
Engine block
Keel bolt
Unusable ground points
(these connections may cause an explosion or elec-
trical shock)
Gas or electrical pipe
Fuel tank or oil-catch pan
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
1932 V DC power source.
u CAUTION: The supplied DC power cable MUST be
used to provide power to the transceiver. AVOID ex-
ceeding the 3 m (10 ft) length of the DC power
cable. If it is necessary to make a run of over 3 m,
use #6 or similar weight cable instead of the sup-
plied DC power cable for a maximum run of 6 m (20
ft).
DC power cable connection
NOTE: Use terminals
for the cable connection.
Crimp
Solder
Supplied
DC power cable
red
black
12 V
battery
Optional AT-130/E
Transceiver
Copper pipe Metal object Copper screen
RC-21
IC-M710RT.qxd 02.1.9 9:03 Page 22

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