Price: $536.00 Inc GST

Quick Overview

DIN Sized
Front Mount Speaker
Shallow depth Chassis

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GME updates the TX4500S UHF CB Radio with a rugged professional microphone

GME has updated the most popular Din Size UHF CB Radio in Australia -TX4500S with a newly designed rugged professional microphone.

The TX4500S now includes a new commercial grade microphone developed specifically to match the requirements of this
radio's demanding user and remote applications.
Extensive engineering research and development has culminated in a microphone designed to brush off the toughest of Australia's conditions
with high performance and durability. The microphone PTT switch has been tested to 600,000 cycles (lever style),
UV and humidity resistant extra large curly cord with a commercial style bollard and microphone clip.
The back plate is secured with 6 hexagonal stainless steel (Marine grade) screws.

DIN size fully featured 5 watt UHF CB radio

The TX4500S is DIN sized and ideal for installations that require this international size standard. The DIN mounting kit is supplied and it's compact
depth design allows for easy installation in confined spaces.
The combination of front facing speaker, large LCD screen, rotary volume, channel and squelch controls,
and the advanced features provided by the use of the latest in DSP technology, make the TX4500S the radio of choice for many traditional CB markets


  • User adjustable full spectrum LCD backlight
  • Advanced signal management
  • Dynamic volume control
  • Voice inversion scrambler
  • Large high contrast wide angle LCD display
  • Front facing speaker
  • Rotary squelch, channel and volume controls
  • Open and group scan
  • Rear mic option
  • Memory channel quick select
  • CTCSS and DCS
  • Duplex
  • 5 digit selcall with quiet mode
  • Digital signal strength meter
  • 95 user programmable extra receive channels
  • 5 year warranty

Please note that the TX4500S comes with a DIN mount bracket the alternative is an MB42

Supplied With

  • TX4500 UHF Transceiver
  • Mounting Bracket
  • Speaker Microphone
  • Microphone Clip
  • DC Lead
  • Screw pack and adaptor
  • Instruction manual

Brochures and Manuals

Owners Manual
Product Brochure

Compatible Accessories


Compliant Specification Meets AS/NZS 4365 for radio communications equipment in the UHF citizen and personal radio service.
Frequency Range TX 476.425-477.4125 MHz
Number of Channels 80
Channel Spacing 12.5 kHz
Operation Mode Simplex or half duplex with repeater talk around.
Scanning Speed 25 ms per channel (40 channels per second)
Antenna Impedance 50 Ohms nominal
Nominal Battery Voltage 12 V DC
Operating Voltage Range 10-15 volts DC
Battery Polarity Negative Earth
Standard Test Voltage 13.8 volts DC
Overvoltage Protection 25 volts DC maximum. At 18 V DC the channel display flashes ‘Hi DC’ for 5 seconds on receive. The RF power is reduced and TX flashes on transmit
Reverse Voltage Protection Diode Crowbar
Overcurrent Protection In-line 2 Amp Fuse
Operating Temperature -10°C to 60°C
RF Output 5 watts
Spurious Emission < - 70 dBc
Frequency 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
Current Consumption 1.7 amps with 50 Ohms termination.
Intermediate Frequencies 38.85 MHz, 450 kHz
Sensitivity -122 dBm for 12 dB SINAD unweighted
Selectivity -6 dB at + 3.5 kHz -60 dB at ± 12.5 kHz
Intermodulation Immunity -72 dB
Blocking Immunity -98 dB
Spurious Response Immunity 70 dB
Audio Output Power 3 W average into 4 Ohms
Audio Signal to Noise > 45 dB unweighted
Sensitivity -6 dB at + 3.5 kHz -60 dB at ± 12.5 kHz
Current consumption < 175 mA muted 750 mA Full volume
Conducted Spurious Emission < - 70 dBm
Dimensions 50 (H) x 171 (L) x 112 (D) mm
Weight 646 grams
Power Supply/Supply Voltage Two core cable with bulkhead connector in rear panel.
Antenna SO239 panel socket
External Speaker 3.5 mm mono jack
Microphone Port 6 way telephone style with rubber strain relief