TERION UM20-100111B, Руководство по установке, Страница: 14 / 78

DT and ITU software running on the installed equipment is the latest version. If not, you
will have the latest versions readily available on your PC for upgrading the software.
3.5 Inspection for Non-Standard Modifications or Protrusions
A visual inspection of the truck is required to assess any modifications or changes to the
factory-built vehicle. Changes include additional fairing, modified exhaust, additional
antennas, or any other additional hardware that may interfere with the installation and
operation of the system.
3.6 Selection of FM/DHF Antenna Location
Terion has performed extensive testing of the Antenna System; side mount installations are
preferred to rear mount installations because they perform better . The installation kit
contains the necessary parts for an FM/DHF side-mount assembly, and a rear-mount
supplemental kit is available for rear-mount assemblies. Before performing a rear-mount
installation, please review the criteria below to verify the appropriateness of the selection.
CAUTION! System performance requires that antenna locations be mounted
away from sources of interference.
•
Proximity of existing antenna. Citizens Band (CB) or any other type of antennas up
to 3' in length must remain as far as possible from the FM/DHF antenna.
•
Is an acceptable side-mount location available? Be sure the side mount antenna
base mount bracket will fit around external air cleaners.
•
Is the side mount location too tall? The overall height of the FM/DHF antenna
must be 13'6" or less. The antenna is 7' 3" (87") tall. Make sure the antenna base
mount, when attached to the side bracket, is no higher than 75" from the ground.
Note: The higher the antenna is mounted, the better it works.
Make sure the antenna is mounted such that the overall height is as
close as possible to 13' 6", without going over.
WARNING! FEDERAL MOTOR CARRIER SAFETY
REGULATIONS PROHIBIT THE OVERALL HEIGHT FROM
EXCEEDING 13' 6". BE SURE THE ANTENNA HEIGHT IS 13' 6"
OR LESS.
•
Is a driver side mount possible? If a side mount is determined to be the best option,
select the driver side, if possible. This will prevent the antenna from getting hit
repeatedly by hanging branches on the side of the road.
•
Length of antenna coaxial cable. The provided antenna cable is a fixed length; this
length has been pre-configured and may not be modified.
•
Rear mounted antenna should not interfere. If rear mounted, will the antenna
interfere with the trailer or other obstacles such as refrigeration units, hydraulic tanks,
vertically mounted load bars, or other accessories? Rear mounted antennas are
3-2
Mobile Messaging System Installation Manual June 15, 2001
UM20-100111B Terion, Inc.