Westhold TX3 9V User Manual

FCC ID: NKBTX3-9V

Spring Contacts

Westhold Corporation

TX3-9V Transmitter User Manual (Draft)

Overview

Thank you for selecting the Westhold TX3-9V transmitter. It is part of a sophisticated electronic timing and
scoring system, the RMS-3. The lightweight and compact TX3-9V device operates on a standard 9 volt alkaline
battery. It is easy to install, operate and maintain.

Operation Directions

Phillips Screw

Battery Compartment Lid

Low Battery LED(Red)

Normal Operation LED(Green)

TX3-9V Illustration

The TX3-9V operates on a standard 9 volt alkaline battery. The battery can be inserted by first removing the small
Phillips head screw and removing the battery compartment lid. Slide the battery into the compartment with the
terminals of the battery coming in contact with the spring contacts as shown in the diagram below:

It does not matter which battery terminal comes in contact with which spring contact. The TX3-9V will function
with the battery in either orientation. Once the battery has been placed in the compartment, check to see that the
green LED indicator light flashes. If the red LED light flashes, it indicates the battery is weak and therefore should
be replaced. If both LED lights come on, remove the battery and reinstall the battery as per the instructions above.
Place the battery lid back on the TX3-9V and screw down the lid. A fresh 9 volt battery will power the TX3-9V for
72+ hours.

FCC ID: NKBTX3-9V

Installation

Fasten the TX3-9V on the car or motorcycle using pop rivets or some other suitable fastening. Be sure to place all
transmitters in the same location on each vehicle. The best possible orientation of the transmitter is shown below
with the longest edge of the transmitter parallel to the Start/Finish line where the loop antenna is located.

Direction of Travel

Maintenance

The TX3-9V requires minimal maintenance. Cleaning the spring battery contacts can be done with a damp cloth or
cotton swab. The external plastic may be cleaned with a damp cloth. Do not use solvents to clean either the plastic
or the battery contacts.

Specifications

Specification

Dimensions

Weight Approx. 4oz(100 grams)
Temp Range
Battery Life 72 Hours Nominal(100 Typical)
Operational Indicator LED
Low Battery Indicator LED
Humidity 100% Relative

FCC Notice

FEDERAL COMMUNICATIONS COMMISSION RADIO AND TELEVISION

INTERFERENCE STATEMENT

Changes or modifications not expressly approved by Westhold Corporation could void the user's
authority to operate the equipment.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) this device may not cause harmful interference, and (2) this device must accept any
interference received including interference that may cause undesired operation.

FCC ID: NKBTX3-9V

Approx. 3.25” x 2” x 0.75”(≈8x5x2cm)

32-122°F (0-50 °C)