About this Guide
This user’s guide provides information about both
TM8105 and TM8115 mobile radios and is divided into
two parts.
■ Part A explains how the TM8115 radio operates. The
TM8105 radio has a control head without user controls, so no TM8105 operating information is
needed.
■ Part B outlines the installation procedure for both
TM8105 and TM8115 radios, and gives the interface
specifications for the TM8105 remote connector.
Important
Safety
Information
Updating
this Guide
© Tait Electronics Ltd May 2003 About this Guide 1
This user’s guide also contains important safety information about using and installing TM8105 and TM8115
radios. Refer to page 6 for user safety instructions and
page 18 for installation safety instructions.
In the interests of improving the performance, reliability
or servicing of the equipment, Tait Electronics Ltd
reserves the right to update both the equipment or this
user’s guide, without prior notice.
Your Radio’s Settings
Use the following table to list your radio’s programmed settings.
Function Key Settings
Channel List
ID Description ID Description
Part 1: Radio Operation
About this Guide ...........................................................................1
Important Safety Information .......................................................................1
Updating this Guide ....................................................................................1
Safety Warnings ...........................................................................6
Warning: Safe Operation .......................................................................6
Warning: High Temperatures .................................................................6
Warning: FCC RF Exposure Limits .......................................................... 6
Caution: Radio Protection ......................................................................7
Getting Started .............................................................................8
Radio Controls ............................................................................................8
Radio Indicators ........................................................................................10
LED Indicators .....................................................................................10
Audible Indicators ............................................................................... 10
Basic Operation ...........................................................................11
Turning the Radio On and Off ....................................................................11
Adjusting the Volume ................................................................................11
Selecting a Channel ..................................................................................11
Making a Call ...........................................................................................11
Transmit Timer ....................................................................................12
Receiving a Call ........................................................................................12
What You Hear on a Channel ....................................................................12
Signalling Mute ................................................................................... 12
Squelch ...............................................................................................13
Monitor ....................................................................................................13
Activating Monitor ..............................................................................13
Activating Squelch Override ................................................................. 13
Scanning ...................................................................................................14
Activating Scanning ............................................................................14
Nuisance Delete ..................................................................................14
Priority Scanning ................................................................................. 14
Troubleshooting .........................................................................15
Removing the Radio from the Vehicle ........................................................15
Notes ............................................................................................16
Radio Operation 5
Safety Warnings
Warning: Safe Operation
■ Switch the radio off at petrol filling stations
or near flammable liquids or gases.
■ Switch the radio off in the vicinity of explosive devices and blasting zones.
■ Using a handheld microphone or a radio
while driving a vehicle may violate the laws
and legislation that apply in your country or
state. Please check the vehicle regulations in your area.
Warning: High Temperatures
The bottom surface of the radio and the heatsink fins
can become hot during prolonged operation. Do not
touch these parts of the radio.
Warning: FCC RF Exposure Limits
This product generates RF (radio frequency) energy
during transmissions. This device must be restricted to
work-related use in an occupational/controlled exposure environment.
The radio operator must have control of the exposure
conditions and duration of all persons exposed to the
antenna of this transmitter to satisfy FCC RF exposure
compliance. This device is not approved for general
population use.
■ This device must only be used with authorized accessories and antennas.
■ The operator must ensure that the minimum safe distance of 0.9m (35 inches) between persons and the
antenna is maintained during transmissions.
6 Safety Warnings
■ This minimum safe distance is based on the assump-
tion that there is a duty cycle of 50% transmit mode
to stand-by or receive modes. The radio is in transmit
mode when the PTT (press-to-talk) key on the microphone is pressed and the control head red LED (light
emitting diode) glows.
Please refer to the following website for more information on what RF energy is and how to control your
exposure to assure compliance with established RF
exposure limits.
Website: http://www.fcc.gov/oet/rfsafety/rf-faqs.html
Caution: Radio Protection
Always remove the fuses from the radio power cable
before charging the vehicle battery, connecting a second
battery or using power from another vehicle (e.g. when
“jump-starting” the vehicle).
Safety Warnings 7
Getting Started
This section provides a brief description of your radio’s
basic operation. If you need further information, contact
your radio provider.
Radio
Controls
The radio controls are the PTT key, volume control, on/
off key, channel selection keys and function keys. Some
keys may have functions assigned to both short and long
key presses. A short key press is defined as less than one
second and a long key press is more than one second.
The radio controls and their functions are summarized in
the diagram and table on the following page.
8 Getting Started