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PA G E   1 8  

I n s t r u c t I o n   m A n uA l  

t X 4 5 0 0

To select a Channel Bank

1.   Press and hold the 

Menu

 key. A high beep will be 

heard and the radio will enter the configuration 
menu.

2.   Briefly press the 

Menu

 key repeatedly until the 

RX

channel bank option is displayed. 

3.   rotate the 

Channel 

knob to select from one of five 

channel banks 

RX-A

 through 

RX-E

4.  When finished, press the 

PTT

 to exit the menu. 

Programming RX-Only channel frequencies

rX-only channels are switched off by default. to 
program rX-only channels you will need to activate the 
channel editor which will then allow access to channels 
81-99 in the currently selected channel bank. rX-only 
channels can be programmed with frequencies in the 
range 403 – 520 mHz.

to program rX-only frequencies, your radio must be 
in numeric mode. If your radio is in Alpha mode briefly 
press 

F - ALPHA

 so that ‘numEr’ is displayed.

To activate the Channel Editor

1.  switch the radio off.

2.   Press and hold the 

Channel 

knob while switching 

the radio on again.

3.   

RXALL

 will be displayed briefly, indicating the rX 

channel Editor has been activated.

You can now rotate the 

Channel 

knob past channel 

80 to select additional channels 81-99. –oFF- will be 
displayed to the right of the channel numbers indicating 
that these channels are switched off and do not yet 
contain any frequencies.

Selecting Frequency Steps

NOTE:

 this menu option is only available when rX-

only channels are selected.

the frequency step is the spacing between frequencies 
when the 

Channel 

knob is rotated. the frequency 

step can be set to either 12.5 kHz or 25 kHz. the 
default 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 
band filter is automatically selected to ensure optimum 
performance.

1.  Press and hold 

MENU

 until the radio beeps.

2.   Briefly press 

MENU

 repeatedly until the frequency 

step is displayed.

 

25 kHz steps 

12.5 kHz steps

3.   rotate the 

Channel 

knob

 

left or right to change the 

frequency step.

4.  Press the

 PTT

 to exit the menu.

To program an RX-Only frequency:

1.   rotate the 

Channel knob

 to select a suitable 

channel number (81-99). 

–OFF

- will be displayed to 

the right of the channel number.

2.   Press and hold the menu key until the radio beeps. 

‘–oFF-’ will flash. You now have 6 seconds to begin 
programming otherwise the menu will time-out.

3.   rotate the channel knob to the right to begin 

selecting your desired frequency starting at 403 
mHz. continue to rotate to the right to increase the 
frequency or to the left to decrease the frequency. 
the display will show the frequency to the nearest 
10 kHz.

  e.g. 468.425 will display as:

4

6

8

4

2

10 kHz
100 kHz
1 MHz
10 MHz
100 MHz

5

not shown

4.   to advance through the frequencies more quickly, 

briefly press the 

Channel 

knob. the frequency will 

now adjust in 1 mHz steps. As you approach the 
desired frequency, briefly press the 

Channel 

knob 

again to return the original 25 kHz/12.5 kHz steps.

5.   once your desired frequency is displayed, press and 

hold the 

Channel 

knob until the radio beeps. the 

frequency is now stored under your selected channel 
number.

e.g. 458.325 MHz stored under CH 90

6.  repeat steps 1 – 5 to program other channels.

NOTE: 

the frequency tuning is live which means the 

radio is actually listening to the frequencies you are 

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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