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PA G E   2 2  

I n s t r u c t I o n   m A n uA l  

t X 4 5 0 0

6.   connect the Dc connector and Pl259 antenna plug 

(and rear microphone extension lead if used) to the 
sockets on the radio’s rear panel. 

You can now refit the console to the vehicle.

NOTE: 

Do not use bolts longer than 6mm otherwise 

they may foul the internal components.

DC POWER CONNECTION

the tX4500 is designed for 13.8 V Dc negative earth 
installations only (i.e. where the negative side of the 
battery is connected to the frame or chassis of the 
vehicle). there are two recommended methods of 
installation. Please refer to the following diagrams.

Radio remains On when the Ignition switch is Off

connect the radio’s negative (Black) lead to the 
vehicle’s chassis or if preferred directly to the battery’s  
negative terminal.
connect the radio’s positive (red) lead, via the 2 Amp 
fuse, to the battery’s positive terminal or to a point 
in the fuse box that has +13.8 volts continuously 
available.

Radio remains 

ON

 when ignition switch is 

OFF

RED

Fuse

Fuse

BLACK

Chassis

Car battery

Ingnition Switch 

Radio turns 

ON

 and 

OFF

 with ignition switch

RED

BLACK

Chassis

Car battery

Ingnition Switch 

To Radio

To Radio

the radio can now be switched on or off at any 
time using the switch on the 

Volume

 control.

Radio Turns On and Off with the Ignition switch

connect the radio’s negative (Black) lead to the  
vehicle’s chassis or if preferred directly to the 
battery’s negative terminal.
connect the radio’s positive (red) lead, via the 2 
amp fuse, to the accessory point in the fuse box. 
this point should 13.8 volts onlY when 
the ignition is switched on or in the AccEssorY 
position.

Radio remains 

ON

 when ignition switch is 

OFF

RED

Fuse

Fuse

BLACK

Chassis

Car battery

Ingnition Switch 

Radio turns 

ON

 and 

OFF

 with ignition switch

RED

BLACK

Chassis

Car battery

Ingnition Switch 

To Radio

To Radio

 

the radio should now switch on and oFF automatically 
with the vehicle’s ignition switch. 

 

MICROPHONE

the tX4500 is fitted with two microphone sockets 
– one on the front panel and one on the rear. the 
6 pin microphone connector can be plugged into 
either socket. In fact, if the situation requires it, two 
microphones can be connected simultaneously. the first 
microphone keyed takes priority.

Front

the front microphone socket is fitted with a hard 
protective cover. the cover is a press fit. to remove the 
cover, insert a paper clip or similar into the small slot in 
the edge of the cover and lift the cover away from the 
panel. retain the cover in case you require it later on.

Position the microphone plug so the plastic tab faces 
upwards then press the plug into the socket until  
it ‘clicks’.

Gently press the rubber strain relief grommet into 
the hole surrounding the socket so that the slot 
around the grommet fits neatly inside the lip inside 
the hole.

Rear

If using the rear microphone connection you should 
obtain the optional lEm6P rear microphone extension 

Plastic tab

lift panel 
here

SILEN T

QUIE T

DUP

ALPH A

VOLUME

l

SILEN T

QUIE T

DUP

ALPH A

VOLUME

Summary of Contents for TX4500

Page 1: ...I N S T R U C T I O N M A N U A L DIN size fully featured 5 watt UHF CB radio...

Page 2: ...ighting 7 Bandwidth Filter Settings 7 Dynamic Volume Control 8 Voice Scrambler 8 Repeaters and Duplex Mode 8 Priority Channel 9 Scanning 9 CTCSS DCS 11 Selective Calling 13 Using Selcall 13 Quiet Mode...

Page 3: ...Original 40 channel wideband Radios will continue to operate on the original 40 channels however they will not be able to converse on the newer channels 41 80 The newer narrowband radios will be able...

Page 4: ...ur voice so that communications are only intelligible to others using the same scrambler technology Programmable Scan Function Scans the selected UHF CB channels with both Group and Open Scan function...

Page 5: ...iority 1 Priority 2 Duplex Alpha Silent Quiet Front Mic Socket SILENT QUIET DUP ALPHA VOLUME SQUELCH CHANNEL PRI 1 PRI 2 SCAN OS GS MENU F LCD PANEL Scan Quiet Busy Transmit Channel Display Selcall Al...

Page 6: ...quelch can be opened or closed using the Squelch knob When the Squelch is open the receiver s background noise can be heard and the symbol is displayed When the Squelch is closed the receiver remains...

Page 7: ...the available settings Rotate the Channel knob left or right to adjust the current setting There are three backlight settings available BKLGT Brightness Setting Provides a continuously variable bright...

Page 8: ...eeps 2 Briefly press the Menu key repeatedly until ENCOF or ENCON is displayed 3 Rotate the Channel knob to make your selection Select ENCON to activate the scrambler encoder or ENCOF to disable it 4...

Page 9: ...is feature can be used to provide instant access to your working channel or your local repeater channel at the press of a key It can also be used in conjunction with the Group Scan function Your TX450...

Page 10: ...is mode press the F key again or wait 10 seconds for the function to time out This option can be used to quickly jump between channels of interest or to quickly review which channels are in the Scan m...

Page 11: ...d your conversation and there has been no further activity for 5 seconds the radio will resume scanning the other channels If the scan pauses on a busy channel and you don t wish to listen to that con...

Page 12: ...or 50 to access the DCS tones DCS tones are displayed as DT001 DT104 Rotate left CTCSS Off CTCSS Tone 50 DCS Tone 104 Rotate right 5 To see the actual sub tone instead of the tone label briefly press...

Page 13: ...channel display when you first turn the radio on You will need to make your Ident known to anyone who may need to call you using Selcall NOTE Although your radio is factory programmed with a unique Se...

Page 14: ...t the required number in the flashing digit position 5 Briefly press the Channel knob again to select the next digit position 6 Repeat steps 4 and 5 to enter all 5 digits as required 7 Now press and h...

Page 15: ...the PTT switch The alarm will be cancelled and the channel will be open for normal communication You can now talk on the channel in the usual way Quiet Mode The Quiet Mode mutes the receiver to preve...

Page 16: ...mal signal is received on an open channel scanning will pause while the channel is busy and will resume scanning 5 seconds after the channel becomes clear If you were scanning in Group Scan mode the r...

Page 17: ...lcalls to every tenth radio by setting the second digit to A e g Sending Ident 145A5 will call radios 14505 14515 14525 14535 14545 14595 Call acknowledge in Group mode There is no call acknowledge wh...

Page 18: ...is 25 kHz You should select a frequency step that matches the channel allocations in the frequency band you are programming When selecting 25 kHz or 12 5 kHz steps the appropriate wideband or narrow...

Page 19: ...he channel number You can configure the display to show the Frequency or the Alpha name of the selected channel Before starting ensure the radio is in the Numeric mode press F then ALPHA so that NUMER...

Page 20: ...e Scrambler Enables or disables the Voice Scrambler Scrambler Encoder ON Scrambler Encoder Off Beep tone level Adjusts the volume level of the beep tones associated with key presses Beep level 9 Beep...

Page 21: ...only channel memory consists of 5 banks of 19 channels Channel banks are labelled RX A to RX E CH Bank C CH Bank B CH Bank A CH Bank E CH Bank D INSTALLATION Your TX4500 is supplied with a DIN mounti...

Page 22: ...negative terminal Connect the radio s positive Red lead via the 2 amp fuse to the accessory point in the fuse box This point should supply 13 8 volts ONLY when the ignition is switched ON or in the A...

Page 23: ...he radio has a built in high voltage detection system to warn you if an overvoltage situation occurs If the power supply voltage exceeds 18 volts DC the channel display will flash hi dc for 5 seconds...

Page 24: ...5 35 225 7 12 11 97 4 29 165 5 46 229 1 13 12 100 0 30 27 167 9 47 36 233 6 14 13 103 5 31 171 3 48 37 241 8 15 14 107 2 32 28 173 8 49 38 250 3 16 15 110 9 33 177 3 50 254 1 17 16 114 8 34 29 179 9 D...

Page 25: ...0 46 476 5625 66 477 0625 7 476 575 27 477 075 47 476 5875 67 477 0875 8 476 600 28 477 100 48 476 6125 68 477 1125 9 476 625 29 477 125 49 476 6375 69 477 1375 10 476 650 30 477 150 50 476 6625 70 47...

Page 26: ...quency Error 1 5 kHz Modulation FM Maximum Deviation 2 5 kHz at 20 dB AF limiting Transmit Frequency Response 6 dB per octave 300 Hz to 3 kHz 1 3 dB Demodulated Audio Signal to Noise 45 dB unweighted...

Page 27: ...rvices supplied again 2 4 For repairs outside the warranty period we warrant our repairs to be free from defects in materials and workmanship for three months from the date of the original repair We a...

Page 28: ...op Dunn Pl Dandenong South Thebarton 10 12 Harvard Way 89 101 Factory Rd 22 24 College St East Tamaki VIC 3165 SA 5031 Canning Vale Oxley Gladesville Manukau 2013 T 03 9798 0988 T 08 8234 2633 WA 6155...

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