Onwa Marine Electronics KC-480 - Manual (Page 7)

Operation
Installation
ANTENNA CONNECTOR:
DC POWER:
Use the 50 ohm coaxial cable with M-type male connector
(PL-259) to connect antenna. The antenna output impedance is
50 ohm.
EXTERNAL SPEAKER JACK:
INSTALLING INSTRUCTIONS:
easy operations of the transceiver.
PRECAUTIONS:
Before using the transceiver, please check the following as it
the illustration. Be sure to install in a position which will not
interfere with the navigation of the ship and which will enable
Install the mounting bracket in the ship s cabin as shown in
cooling effect to the best.
voltage of the transceiver is DC 12V , Therefore, the trans
may otherwise result in damage or defect of the transceiver.
Avoiding hot, humid locations or places exposed to sea water,
and especially locations exposed to sunlight, installthe trans
ceiver in a ventilated locations.
High SWR may result in inefficient transmission. the supply
ceiver can not be connected to AC 100V lines.
Ensure sufficient space behind the rear panel to get heat sink s
Turn the Volume control clockwise to apply power to the transceiver.
The LED display should be illuminated.
Set the RF Gain control maximum position.
Select the channel desired.
To transmit, depress the transmit switch on microphone, to receive,
release the switch.
Rotate the Squelch control counter clockwise fully.
internal speaker automatically.
source .Insertion of the plug from a speaker wil l silence the
Used to connect an external speaker (8 Ohm 4w) as an sound
Connect accessory power cable. The supply voltage is DC 13.8
VDC +10
with a power consumption of 3A or more.