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Quick Guide
TPMS Lite Antenna Installation
_____________________________________________________________________________________
Introduction
This document will describe the fitting of the TPMS antennas to a vehicle. Please ensure you read this
guide carefully to obtain the best performance out of the system.
Antenna Details
The antenna is an advanced single band antenna. For optimum system performance care should be take
to fit the antennas according to the guidelines in this document. The system performance can be
impaired with poor antenna placement.
The goal of choosing an antenna position is to achieve the strongest signal strength over the widest
wheel rotation. There will be some points of wheel rotation where a signal will not be strong enough to
take a measurement. These are generally called NULLS. It is common to have 3 nulls per rotation of the
wheel.
Each antenna is supplied with a strip of hook and loop tape. It is recommended that the antenna is
mounted with this.
Antenna Installation
As previously mentioned the goal of the antenna installation is to achieve the strongest signal strength
over the widest possible rotation angle of the wheel. To help it is best to use the supplied TPMS Config
software monitor mode. The important parameter to monitor is the SAW Strength value. This will give
you real‐time feedback of the signal strength from the sensor. Please refer to the TPMS software
configuration guide for further information.
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Summary of Contents for Stack TPMS Lite
- Page 1 Quick Guide TPMS Lite Antenna Installation _____________________________________________________________________________________ Introduction This document will describe the fitting of the TPMS antennas to a vehicle. Please ensure you read this guide carefully to obtain the best performance out of the system. Antenna Details The antenna is an advanced single band antenna. For optimum system performance care should be take to fit the antennas according to the guidelines in this document. The system performance can be impaired with poor antenna placement. The goal of choosing an antenna position is to achieve the strongest signal strength over the widest wheel rotation. There will be some points of wheel rotation where a signal will not be strong enough to take a measurement. These are generally called NULLS. It is common to have 3 nulls per rotation of the wheel. Each antenna is supplied with a strip of hook and loop tape. It is recommended that the antenna is mounted with this. Antenna Installation As previously mentioned the goal of the antenna installation is to achieve the strongest signal strength over the widest possible rotation angle of the wheel. To help it is best to use the supplied TPMS Config software monitor mode. The important parameter to monitor is the SAW Strength value. This will give you real‐time feedback of the signal strength from the sensor. Please refer to the TPMS software configuration guide for further information. 1 ...
- Page 2 TPMS Lite Antenna Installation Guide ST542122‐001 Saw Strength The antenna installation is normally done in several parts. The first is to choose an initial location and measure the signal strength during a complete wheel rotation. This will give a baseline to work from. Then the process is repeated with a new antenna position. Each time the goal is to increase the wheel rotation coverage or signal strength. You should be aiming to get at least ¾ of the wheel covered at greater than 70% signal strength. However the more strength or coverage you achieve the better the system will perform. NOTE: It is worth spending the time at this stage to find the optimum antenna position as it will significantly reduce the potential for problems later on. The antenna has a plastic side and an epoxy potted side. It is important that the plastic side is facing the wheel and sensors. All antennas are affected by the surrounding environment. Wishbones, pushrods and other suspension and steering parts can all influence the performance of the antenna. However the impact of these can be kept small with carful antenna positioning. Do • The plastic side of the antenna must face the wheel and tyre. • The antenna it should be mounted with a clear line of sight between itself and the wheel. • The antenna should be mounted less than 60cm from the wheel. • The antenna should “look” through the sidewall of the tyre. • The antenna should be mounted using the supplied hook and loop tape. Do Not • DO NOT mount the antenna behind metal or carbon body work. • DO NOT Stick anything to the plastic face of the antenna. • DO NOT paint the antenna. • DO NOT mount the antenna too close to high temperature parts (e.g. exhausts) 2 ...
- Page 3 TPMS Lite Antenna Installation Guide ST542122‐001 Mounting Examples The following is an example of starting placements for the antenna. Excess Cable To further increase the performance of the antenna it is advised to coil the excess antenna cable up in a specific way. • First loop the antenna cable up • Now squeeze the cable together and secure with 2 cable ties. 3 ...
- Page 4 TPMS Lite Antenna Installation Guide ST542122‐001 Stack® is a registered trademark of Stack Limited. Information in this publication is subject to change without notice and does not represent a commitment on the part of Stack Limited. No responsibility is accepted for error or omission. Copyright © 2010 Stack Limited Part No. ST542122‐001 4 ...
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