User's Guide
Table Of Contents
- ContentsTable of Contents
- Itron Mobile Radio Compliance
- 1 Introduction
- 2 About Your Itron Mobile Radio
- 3 Daily Operation
- 4 LED Status Indicators
- 5 Communication Ports
- 6 Carrying the Portable Itron Mobile Radio
- 7 Installing the IMR-FT
- 8 Maintaining your Itron Mobile Radio
- 9 Storing Your Radio
- 10 Battery Basics
- 11 Safety
- 12 Troubleshooting
- 13 Optimizing Bluetooth® Performance
- 14 Itron Mobile Radio Capabilities and Limitations
1. Selecting an Antenna Location on the Vehicle on page 23
2. Installing the Permanent Antenna Mount on page 23
3. Installing the Magnetic Antenna Mount on page 25
Selecting an Antenna Location on the Vehicle
The antenna remains installed on the vehicle. The manufacturer's instructions, which ship with
the antenna components, are summarized in the following procedures. Itron recommends
consulting the antenna manufacturer's instructions in addition to this guide.
Note: Do not trim, shorten, or secure any cabling until you are confident of its routing.
Location selection criteria include the following.
■
Access from inside the vehicle to the exterior antenna mounting location may be required.
If the vehicle has a headliner, remove nearby trim pieces or even a dome light to gain
access to the mounting location.
■
Install the antenna a minimum of 12 inches from any other antennas or metal structures on
the vehicle's roof that could disrupt communication with endpoints. 30 inches is
recommended.
■
Select a location on the vehicle's roof that has as flat a surface as possible. The metal of
the roof must be 0.02 to 0.04 inches thick.
■
The location should be no more than one inch deep and at least 2.5 inches in diameter to
properly secure the antenna base.
■
To meet RF exposure safety requirements, the antenna must be installed a minimum of
21.7 inches (55 centimeters) from where any bystanders may be located.
■
The diameter of the ground plane at the antenna base should be at least three feet for best
performance. Ideally, the ground plane should be a minimum of three times the
wavelength being received. For example, a 900 MHz signal, having a 13 inch wavelength,
should have a ground plane of 39 inches.
Installing the Permanent Antenna Mount
The permanent antenna mount is installed through the roof of the vehicle.
1. Drill or cut a ¾-inch diameter hole in the vehicle where the permanent mount antenna is to
be located.
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Itron Mobile Radio User Guide Chapter 7 Installing the IMR-FT