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8
Connecting an Antenna
You can connect a variety of antennas for both mobile and base-
station use (see “Using the HTX-242 as a Base Station” on
Page 10). Each type of antenna has its benefits. Choose one that
best meets your needs.
When deciding on a mobile or base-station antenna and its loca-
tion, consider the following:
• 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. An
SWR of 1.8:1 or greater can prevent the HTX-242 from per-
forming to its specified ratings.
After you select an antenna, follow its mounting instructions. Then
route the antenna cable from the antenna to the HTX-242 and
connect it to the antenna connector.
Connect the antenna to your HTX-242 using 50-ohm coaxial cable.
The cable should end in a PL-239 connector.
Cautions:
•
To prevent damage to your HTX-242, 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.