For Outdoor Use - Icom IC-4A Instruction Manual

shortened more Бу transmitting than Бу receiving, since several times more current is drawn during
transmission. To prolong battery life, therefore, practice the following:
Try to minimize the transmit period.
Reduce volume during reception.
Be sure to cut off power source when set is not used.
ж
More working hours аге available if high-performance batteries аге employed.
FOR OUTDOOR USE
1. Attach the supplied power pack. (Refer to "BATTERY INSTALLATION")
2. Attach the supplied hand strap and belt clip through the fixture on the body (as shown in the
drawings on page 9).
3. Attach the flexible rubber antenna.
FOR USE IN THE CAR
1. Avoid using the unit near the outlet of heaters, air-conditioners, etc.
2. Put the unit in a convenient place to avoid disrupting safe driving.
3. Firmly ground to the car body a mobile antenna (e.g. whip antenna).
FOR FIXED USE
1. Avoid putting the unit in places exposed to rain, water splash, direct sunshine, dust, vibration, or
heat.
2. Anexternal antenna should be used for indoor operation. The use of the flexible antenna indoors
may cause TVI, BCI, Hi-Fi interference or a malfunction stabilized DC power supply.