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Tait TM8105 User Manual Download Page 7

Radio Operation

5

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

Summary of Contents for TM8105

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Page 3: ...cedure for both TM8105 and TM8115 radios and gives the interface specifications for the TM8105 remote connector Important Safety Information This user s guide also contains important safety informa tion about using and installing TM8105 and TM8115 radios Refer to page 6 for user safety instructions and page 18 for installation safety instructions Updating this Guide In the interests of improving t...

Page 4: ...2 About this Guide ...

Page 5: ...Your Radio s Settings Use the following table to list your radio s programmed settings Channel List Function Key Settings ID Description ID Description ...

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Page 7: ... 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...

Page 8: ...g 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 expo sure environment The radio operator must have control of the exposure conditions and duration of all persons exposed to the antenna of this transmitter t...

Page 9: ...d LED light emitting diode glows Please refer to the following website for more informa tion 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 us...

Page 10: ...trols 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 ...

Page 11: ...radio status LEDs function key LEDs function keys 3 and 4 function keys 1 and 2 Symbol Name Function PTT press and hold to transmit and release to listen volume control rotate to change the speaker volume on off a long press turns the radio on or off channel selection keys move up and down through the channel list function keys 1 2 3 and 4 function keys ...

Page 12: ...tion or selection is permitted A long low pitched beep indi cates that the action or selection is not permitted LED Meaning red transmit glowing your radio is transmitting flashing your transmit timer is about to expire green receive and monitor glowing there is activity on the current channel even though you may not be able to hear it flashing you have received a call with valid special signallin...

Page 13: ...e volume The volume control also changes the volume level of the radio s audible indicators Selecting a Channel Use the channel selection keys or to scroll through the channel list until the channel you want is displayed Making a Call 1 Select the required channel or group using the chan nel selection keys or 2 Check the green LED If the green LED is glowing the channel is busy and you cannot tran...

Page 14: ...hes the signalling programmed for your radio the green LED flashes and your radio may give a ringing tone What You Hear on a Channel Your radio may be programmed so that you hear all conversations on a channel or your user group may be segregated from other user groups by using special signalling The special signalling is used to control the muting and unmuting of your radio so that your radio is ...

Page 15: ...key and monitor overrides the signalling mute allowing you to hear any traffic on the channel Note Your radio may be programmed to activate monitor whenever the microphone is off the microphone clip 2 Press the monitor function key again to turn monitor off and the green LED no longer flashes Activating Squelch Override 1 Press and hold the monitor function key for longer than one second to overri...

Page 16: ... The amber LED glows to show that the radio is scanning 3 Press the scanning function key again to cancel scan ning and the amber LED no longer glows Nuisance Delete If a member channel of the scan group is busy for a long time and you do not wish to hear the conversation you can temporarily delete it from the scan group by using the function key assigned to nuisance delete Alternatively press and...

Page 17: ...dio Are the in line fuses in good condition Is the power cable securely connected to the vehicle battery or power supply If all appears to be in order then contact your radio provider for further assistance Removing the Radio from the Vehicle 1 Switch off the radio 2 Unscrew the four thumb screws that secure the radio to the U bracket 3 Lift the radio clear of the U bracket 4 Disconnect the antenn...

Page 18: ...16 Notes Notes ...

Page 19: ...ractice 20 Checking Equipment 20 Installation Tools 20 Microphone Clip Installation Tools 21 Mounting Position 21 Radio Installation 22 Mounting the U bracket 22 Installing the Control Head on the Radio Body 22 Removing the Control Head 23 Installing the Microphone 23 Installing the Antenna 24 Warning RF Exposure Hazard 24 Antenna Termination 24 Power Cable 25 Installing the Power Cable 25 Install...

Page 20: ...evices may be prone to malfunction due to the lack of protection from RF energy present when your radio is transmitting Examples of vehicular electronic devices that may be affected by RF energy are electronic fuel injection systems electronic anti skid braking systems electronic cruise control systems If the vehicle contains such equipment consult the vehi cle manufacturer or dealer in order to d...

Page 21: ...o Installations The installation U bracket described in this guide has been designed so that there is enough airflow around the radio to provide cooling If a non standard installation method is used care must be taken that sufficient heat can be dissipated from the radio heatsink fins and the bottom surface of the radio chassis For this to be achieved there must be a gap of more than 10mm 0 4 inch...

Page 22: ...Radiocommunications Agency The full text of the MPT 1362 Code of Practice can be found at the Radiocommunications Agency website http www radio gov uk Checking Equipment Unpack the radio and check that you have the following items radio control head with connecting loom radio body microphone with microphone clip and screws TM8115 only installation kit consisting of U bracket with screws power cabl...

Page 23: ...vehicle and determine the safest and most convenient location for mounting the radio The installation must meet the following requirements sufficient clearance behind the radio for the heatsink and cables a large enough flat surface so that the mounting bracket will not be distorted no danger of the radio interfering with air bag deployment ...

Page 24: ...tly Caution Check that the tightening of the screws does not distort the U bracket Installing the Control Head on the Radio Body The orientation of the U bracket mounting determines which way up the control head is mounted on the radio body The numbers in the diagram above refer to the numbered steps below 1 Plug the control head loom onto the control head connector 2 Insert the bottom edge of the...

Page 25: ... chassis by a dot dash dot pattern 2 Use the screwdriver to lift the control head off the chassis clip then repeat in the other position The control head can now be removed from the radio body Installing the Microphone Caution The microphone grommet must be installed whenever the microphone is plugged into the microphone socket When installed the grommet has two functions to prevent damage to the ...

Page 26: ...ed such as RG58 or UR76 Caution The cable should be routed in a manner that minimizes coupling into the electronic control systems of the vehicle Warning RF Exposure Hazard To comply with FCC RF exposure limits this product must be installed using an externally mounted antenna with either a 2 15dBi or 5 15dBi gain This antenna must not be mounted at a location such that any person or persons can c...

Page 27: ...use problems with some electronic equipment such as vehicle alarms engine management systems and in car entertainment systems Check that the vehicle owner has the necessary informa tion to make all electronic equipment function correctly after battery reconnection 1 Disconnect the vehicle s battery unless specifically prohibited from doing so by the customer vehicle manufacturer agent or supplier ...

Page 28: ...es 5 Connect the negative wire to the battery ground 6 Repeat step 4 for the positive wire and connect it to the positive terminal of the battery Installing the Radio in the U bracket 1 Connect the antenna and power cables to the rear of the radio 2 Position the radio in the U bracket so that the holes in the U bracket line up with the holes in the radio chassis 3 Screw the radio into position usi...

Page 29: ...ket on the control head for remote connection The pin allocations of the remote connector are shown in the following diagram and table remote connector Pin Signal Description 1 RX_AUD receive audio output after volume control 2 TXD asynchronous serial port transmit data 3 MIC_AUD microphone audio input 4 RXD asynchronous serial port receive data 5 ON_OFF hardware power on software power off 6 13V8...

Page 30: ...flected power levels Less than 4 of the forward power should be reflected If this is not achieved check the installa tion including the antenna length 4 TM8115 radios only Once the reflected power levels are within tolerance make a call to another party on the radio see Selecting a Channel and Making a Call on page 11 Other Installation Options A wide range of other radio installation options are ...

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