Installing The Antenna - Tait TM9155R Installation Manual

4.2

Installing the Antenna

This section provides information on installing an external antenna within
the RF exposure limits.
Install the external antenna (not supplied) according to the antenna
manufacturer's instructions. Good quality 50 Ω coaxial cable must be used,
such as RG58 or UR76.
Important
Warning!! RF exposure hazard
To comply with FCC RF exposure limits, mount the antenna at a location
such that no person or persons can come closer than 44 inches (1.1m) to the
antenna.
1.
Terminating the
Antenna Cable
2.
Figure 4.1
TM9100 Mobiles: 110 W Mobile Installation Guide
© Tait Electronics Limited October 2005
Route the cable in a manner that minimizes:
coupling into the electronic control systems of
the vehicle
coupling of electric vehicle systems, such as alternators,
into the radio.
Avoid sharp bends in the cable. These distort the cable and
alter its electrical characteristics.
VHF radios must be installed using an antenna mounted centrally
on the vehicle roof, with a gain of 2.15dBi or 5.15dBi.
Run the antenna cable (not supplied) from the antenna to the radio
mounting location and cut it to length, allowing approximately 8
inches (20 cm) excess at the radio end.
Strip the end of the coaxial cable as shown in
angle N-type antenna connector (supplied) to the antenna cable.
Stripping the antenna cable
Figure 4.1. Fit the right
0.83 in
(21 mm)
0.27 in
0.33 in
(6.8 mm)
(8.3 mm)
Installing the Radio
0.24 in
(6.0 mm)
13