GME TX4500S UHF CB with Rugged Microphone

$539.00 $429.00

Out of stock

  • Description
  • Reviews
  • Whats in the box
  • Specifications


Now with the new MC553B Rugged Professional microphone, 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 Scan Suite™ – 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 have a 5 year warranty.

User adjustable full spectrum LCD back light

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



5 digit sel call with quiet mode

Digital signal strength meter

95 user programmable extra receive channels

5 year warranty

DIN Mount Kit
Mounting Bracket
Rugged Professional Microphone
Microphone Clip
DC Lead
Screw Pack
Instruction Manual

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:

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

Over voltage 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

Over current Protection:
In-line 2 Amp Fuse

Operating Temperature:
-10°C to 60°C

RF Output:
5 watts

Spurious Emission:
< - 70 dB c

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 Consumption:
1.7 amps with 50 Ohms termination.

Intermediate Frequencies:
38.85 MHz, 450 kHz

-122 dB m for 12 dB SINAD unweighted

-6 dB at + 3.5 kHz -60 dB at ± 12.5 kHz

Inter modulation 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

-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 dB m

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

646 grams

Power Supply/Supply Voltage:
Two core cable with bulkhead connector in rear panel.

SO239 panel socket

External Speaker:
3.5 mm mono jack

Microphone Port:
6 way telephone style with rubber strain relief