TX4500S DSP DIN size UHF radio with ScanSuite

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The TX4500S is a full-DIN sized radio and is ideal for installations that require this size standard. The DIN mounting kit is supplied and its compact depth design allows for easy installation in confined spaces. The combination of the front facing speaker, large LCD screen and user controls along with the advanced features such as GME's new ScanSuite™ - made possible by the use of Digital Signal Processing - make the TX4500S the radio of choice for 4WD and heavy vehicle owners.

Australian made GME radios now have a 5 year warranty.


  • 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



Compliant SpecificationMeets AS/NZS 4365 for radio communications equipment in the UHF citizen and personal radio service.

Frequency Range TX476.425-477.4125 MHz

Number of Channels80

Channel Spacing12.5 kHz

Operation ModeSimplex or half duplex with repeater talk around.

Scanning Speed25 ms per channel (40 channels per second)

Antenna Impedance50 Ohms nominal

Nominal Battery Voltage12 V DC

Operating Voltage Range10-15 volts DC

Battery PolarityNegative Earth

Standard Test Voltage13.8 volts DC

Overvoltage Protection25 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 ProtectionDiode Crowbar

Overcurrent ProtectionIn-line 2 Amp Fuse

Operating Temperature-10°C to 60°C


RF Output5 watts

Spurious Emission< - 70 dBc

Frequency Error< ± 1.5 kHz


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 Consumption1.7 amps with 50 Ohms termination.


Intermediate Frequencies38.85 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 Immunity70 dB

Audio Output Power3 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

IF Frequencies< 175 mA muted 750 mA Full volume

Conducted Spurious Emission< - 70 dBm


Dimensions50 (H) x 171 (L) x 112 (D) mm

Weight646 grams

Power Supply/Supply VoltageTwo core cable with bulkhead connector in rear panel.

AntennaSO239 panel socket

External Speaker3.5 mm mono jack

Microphone Port6 way telephone style with rubber strain relief

Brand GME
Shipping Weight 1.0000kg
Shipping Width 0.250m
Shipping Height 0.050m
Shipping Length 0.180m
Shipping Cubic 0.002250000m3

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