GME 5 Watt Super Compact UHF CB Radio with ScanSuite

SKU: TX3120S


A sleek new design, with our powerful DSP engine

Synonymous with quality and reliability, the GME TX3120S is one of the most advanced 5 Watt UHF CB radios of its kind. Equipped with GMEs newest digital scanning technology - ScanSuite™ and an impressive feature list that includes Digital Signal Processing, Advanced Signal Management and Dynamic Volume Control. With CTCSS and DCS this radio ensures more privacy and less interruption.

This 5 watt robust radio is engineered to maximise features in limited space.

Product Details

  • ScanSuite
  • Dynamic Volume Control
  • Selectable priority channel
  • Voice inversion scrambler
  • Memory channel quick select
  • Advanced signal management
  • Full spectrum backlighting
  • Active channel transmit in scan
  • 5 year warranty
  • Digital signal processing
  • Open and group scan mode

In the Box:

  • Mounting Bracket
  • Speaker Microphone
  • Microphone Clip
  • DC Lead
  • Screw pack and adaptor
  • 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:  80 UHF CB
Channel Spacing:  12.5 kHz
Operation Mode:  Simplex channels 1-80, Semi duplex channels 1–8, 41–48.
Scanning Speed:  20 channels per second
Antenna Impedance:  50 Ohms nominal
Nominal Battery Voltage:  13.8 volts DC
Operating Voltage Range:  10-15 volts DC
Overvoltage Protection:  25 volts DC max At 18 volts DC the RF power is reduced, and the words ‘Hi DC’ flash.
Overcurrent Protection:  In-line 2A Fuse
Frequency stability:  ±2.5 PPM



RF Output:  5.0 watts max
Spurious Emission:  < -70 dBc
Modulation:  FM
Maximum Deviation:  < ± 2.5 kHz at + 20 dB limiting
Transmit Frequency Response:  +6 dB per octave 300 Hz to 3 kHz +1-3 dB
Demodulated Audio Signal to Noise:   > 45 dB
Current Consumption:   1.5 amps with 50 Ohms termination


Intermediate Frequencies:  1st – 38.85 MHz 2nd – 450 kHz
Sensitivity:  123 dBm for 12 dB SINAD unweighted
Selectivity:  -6 dB at + 3.5 kHz ‑ ‑ ‑ 60 dB at ± 12.5 kHz
Intermodulation Immunity:  73 dB
Blocking Immunity:  100 dB
Spurious Response Immunity:  70 dB
Audio Output Power:  3 watts average into 4 Ohms
Audio Signal to Noise:  > 45 dB
Current consumption:  < 180 mA muted 600 mA @ max. A.F output
Receive Frequency:  ‑6 dB/Octave de‑emphasis 300 Hz to 3 kHz + 1-3 dB
Conducted Spurious Emission:  < -57 dBm
Dimensions:  102 (W) x 97 (D) x 23 (H) mm
Weight:  178 grams
Power Supply/Supply Voltage:  MIL STD 810 method

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