Connecting An Antenna - Radio Shack HTX-212 Owner's Manual

19-1125.fm Page 8 Tuesday, August 3, 1999 9:47 AM

CONNECTING AN ANTENNA

You can connect a variety of antennas for both mobile and base-station
use (see "Using the HTX-212 as a Base Station" on Page 10). Each type
of antenna has its benefits. Choose the one that best meets your needs.
When deciding on a mobile or base-station antenna and its location, con-
sider the following:
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After you select an antenna, follow its mounting instructions. Then route
the antenna cable from the antenna to the HTX-212 and connect it to the
antenna connector.
Connect the antenna to your HTX-212 using RG-8U coaxial cable or other
50-ohm cable. The cable should end in a PL-239 connector.
Cautions:
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8
The antenna should be as high as possible on your vehicle or
house.
The antenna and antenna cable should be as far away as possible
from sources of electrical noise (ignition systems, power cables,
and so on).
The antenna should be vertical.
The antenna should have an SWR of less than 1.5:1. SWRs of
1.8:1 or greater can prevent the HTX-212 from performing to its
specified ratings.
To prevent damage to your HTX-212, you must connect an
antenna to it before you operate it.
Do not run the cable over sharp edges or moving parts that might
damage the cable.
Do not run the cable through the engine compartment or other
areas that produce extreme heat.
Check with your vehicle manufacturer for antenna cable routing
guidelines.