Installation Outline; Mounting - Icom AH-740 Instruction Manual

2
INSTALLATIONS

■ Installation outline

IMPORTANT!
The antenna is a critical element in any communication
system. Correct installation is very important factor for
achieving the utmost in antenna system performance
and operation of your transceiver. We recommend that
installation of the AH-740 be carried out by qualified
technicians only.
1 Attach a mounting base to a desired position on your
vehicle.
• Purchase the mounting base locally.
2 Mount the AH-740 onto the mounting base.
• See "Mounting" on the right side of this page for details.
3 Connect the control and coaxial cables between the
transceiver and the AH-740.
• See page 5 "Cable connections" for details.
4 Connect the ground strap to the vehicle's chassis.
• See page 5 "Cable connections" for details.
5 Attach the supplied antenna spring and whip onto the
AH-740.
AH-740
4
Antenna
spring
Whip
antenna

■ Mounting

RWARNING!
Mount the AH-740 securely with the
supplied nuts and bolts. Otherwise, vibrations and shocks
could loosen the antenna tuner, making it fall, causing
personal injury.
Mounting base
about
8‒10 mm
• For the greatest radiation effectiveness, position the
antenna as high as possible.
• For human safety, mount the antenna at the front and
opposite side of the driver's position, whenever possible.
- Refer to the pictorial installations and scenarios shown on the
pages 2 and 3.
• Make sure to allow enough clearance around the antenna
so that any antenna flexing will not damage the vehicle—
bear in mind that the Main Assembly can flex as much as
16 cm (6.3 inches), without damage.
• Make sure the antenna is as far from the vehicle's vertical
and horizontal metal panels as possible.
AH-740
Flat washer (M16)
Spring washer (M16)
Nut (M16)