Icom IC-02A/AT/E Instruction Manual page 12

(3) EXTERNAL POWER
Ae 2
SOURCE
EXTERNAL ANTENNA
For use at home or in a car, use an external power source which
assures you of stable communication without concern for battery
consumption.
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e When operating the transceiver with a 13.8V DC power supply:
Use the supplied DC power plug and solder the wire as shown in
the diagram above.
e When operating the transceiver with a car battery:
Apply DC power from a 12V cigarette lighter socket through the
optional CP-11 CIGARETTE LIGHTER CABLE WITH NOISE
FIETER:
e To prevent overcharging of battery packs, we recommend that you
remove the battery pack when operating the transceiver for long
periods of time with an external DC power source. (BP-2, BP-4
and BP-5 cannot be charged from the EXTERNAL DC POWER
JACK.)
1. Select a high performance antenna (a multi-element beam or gain
antenna) and set it up in the highest possible position.
2. Use a 50 ohm antenna and coaxial cable with BNC plug.