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TX3500S UHF Compact Radio

TX3500S UHF Compact Radio

The compact size and unique slide-in mounting cradle makes installation simple and our intuitive user interface and controls ensure all of our technology is easy to use and optimises performance across the 80 channels. 
Genuine GME 5 year warranty.

  • ScanSuite
  • Advanced signal management
  • Digital signal processing
  • Dynamic Volume Control
  • Wide/narrowband receive filters
  • Full spectrum backlighting
  • Open and group scan mode
  • Selectable priority channel
  • Active channel transmit in scan
  • Graphic signal strength meter
  • Adjustable squelch control
  • External speaker socket
  • Die-cast chassis
  • 5 year warranty
Technical Specifications
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

50 ms per channel (20 channels per second).

Antenna Impedance

50 Ohms nominal

Nominal Battery Voltage

12 volts DC

Operating Voltage Range

10-16 volts DC

Battery Polarity

Negative Earth

Standard Test Voltage

13.8 volts DC

Overvoltage Protection

30 volts DC maximum. At 18 volts 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



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 unweighted

Current Consumption

1.7 Amps with 50 Ohm termination

Intermediate Frequencies

38.85 MHz, 450 kHz


- 123 dBm for 12 dB SINAD unweighted


- 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 watts average into 4 Ohms

Audio Signal to Noise

> 45 dB unweighted

Current consumption

< 175 mA muted 750 mA Full volume.

Conducted Spurious Emission

< - 70 dBm


29 (H) x 128 (L) x 117 (D) mm


450 grams


SO239 panel socket

External Speaker

3.5 mm mono jack

Microphone Port

6 Way telephone style with rubber strain relief

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