GME TX3120S 80 Channel UHF CB Plug and Play Radio Pack

Brand: GME Electrophone
Product Code: TX3120S PNP
$352.00 $330.00

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.

This new super compact radio has separate rotary user controls for volume and channel change, the widest LCD screen available on any super compact sized UHF and a new dynamic speaker microphone. These new and unique features improve useability and audio quality for a better UHF experience.

The radio also includes ScanSuite™ - a unique scanning technology enabling uninterrupted conversations even on congested channels;

TurboScan – Scans 80 channels in under 2 seconds

Network Scan – Dynamic intelligent channel selection for uninterrupted  conversation

AutoSkip – Skips nuisance channels

The impressive feature list also includes Digital Signal Processing, Advanced Signal Management and Dynamic Volume control – GME innovations to ensure more consistent, reliable communications.

The radio includes CTCSS, DCS and Voice Inversion Scrambler for greater privacy and less interruption.

Power 5 watt
Transmit and receive 477MHz (UHF CB)
Selectable duplex
80 channels - 77 including telemetry (receive only) - 3 reserved for future use.
Scanning and memory
Open/Group and Network Scan
Memory channel quick select
Selectable priority channel
Active channel transmit in scan
Privacy CTCSS
DCS and Voice Inversion Scrambler
User controls and interface Rotary volume and channel controls
Speaker microphone with push- to-talk, channel up/down, priority and scan buttons
Large LCD screen> Mounting bracket

Whats in the box?
 Speaker microphone
 Microphone clip
 DC lead
 Magnetic Base Antenna & Cable 
 Screw pack and adaptor
 Welcome pack
 TX3120s Radio


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 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
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
123 dBm for 12 dB SINAD unweighted
-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


102 (W) x 97 (D) x 23 (H) mm
178 grams
Power Supply/Supply Voltage
MIL STD 810 method

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