Wi Mounting The Transceiver; Bb Antenna - Icom IC-707 Instruction Manual

Hi Mounting the transceiver
For base operation
Select a location which:
— allows adequate air circulation.
— is free from extreme heat, cold, or vibrations.
— is away from TV sets, radios and other electro-
magnetic sources.
For mobile operation
Mount the transceiver using an optional IC-MB5
MOBILE MOUNTING BRACKET. Select a_ location
which:
— can support the weight of the transceiver.
— does not interfere with the operation of the vehicle.
— does not interfere with air bags.
Mi Antenna
The antenna is a vital component of your system.
Ask your Icom Dealer for suitable antenna and instal-
lation information then select an antenna as follows:
If there is enough space:
To expand communication distance, connect a high-
gain antenna. An optional AT-160 or AT-150 HF
AUTOMATIC ANTENNA TUNER is suitable for HF all
band operation.
CAUTION: Protect your transceiver from light-
ning by using a lightning arrestor.
PL-259 connector installation
r Slide the coupling ring
Tg down. Strip the cable
jacket and soft solder.
SOR
Co
Strip the cable as
shown at left. Soft
solder the center con-
Grounding
Z A DANGER! NEVER connect the [GND]
f terminal to gas or electrical pipe.
To prevent electric shock, TVI (Television Inter-
ference), BCI (Broadcasting Interference) and other
problems, ground the transceiver through the [GND]
terminal on the rear panel.
Optional MB-23 CARRYING HANDLE
For carrying and transporting, attach the MB-23.
Supplied screws with the MB-23 CANNOT be used
with the IC-707. Use the screws supplied with the
IC-707.
if there is not enough space:
An optional AH-3 HF AUTOMATIC ANTENNA TUNER is
recommended. Required antenna length is as fol-
lows:
The lowest frequency | Required antenna length
1.8 MHz 12 m; 40 ft or longer
3.5 MHz 3 m; 10 ft* or longer
"If grounding condition is poor, tuning may not be possible.
For mobile operation:
On 3.5 MHz and above, an optional AH-2b ANTENNA
ELEMENT can be connected to the AH-3.
Solder Slide the; connector
HE body on and solder it.
Screw the coupling
ring onto the connector
body.
For best results, connect a heavy gauge wire or
strap to a long earth-sunk copper rod. Make the
distance between the [GND] terminal and ground as
short as possible.