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Digital mobile and base radio · Two-way radios

Rx775

Empower Your Operation

Available
Rx775, Digital mobile and base radio
Rx775UHF / VHF · 1024 channels · Up to 50 W
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Key features

Rx775 at a glance

  • Flexible InstallationRealix Rx775 supports various setups with control head options—standard, single, or dual remote – using cables up to 40m (customizable up to 120m). Ideal for small vehicles, ambulances, trucks, buses, and desktop offices.
  • AI-Based Noise CancellationRealix Rx775 uses advanced AI technology to deliver clear audio by removing road noise, echoes, and nearby exhalation or howling sounds.
  • ClearerReduces noise up to 30dB
  • FasterFilters voices in milliseconds
  • Flexible10-level adjustable AI noise control for different noise conditions

The Realix Rx775 is a flexible digital mobile radio designed for smooth communication across vehicles, motorcycles, and control rooms. It offers multiple control head options, smart connectivity, a modern UI, and AI noise cancellation for clear audio in noisy environments.

Technical detail

Specifications

General
Frequency RangeUHF: 350-470MHz, VHF: 136-174MHz
Channel Capacity1024
Zone Capacity64 (each with a maximum of 256 channels)
Channel Spacing12.5kHz/20kHz/25kHz
Operating Voltage13.6 V ±15%
Current Drain – Standby< 0.5A
Current Drain – Receive< 2.0A
Current Drain – Transmit 1W<3A
Current Drain – Transmit 5W<4A
Current Drain – Transmit 25W<8A
Current Drain – Transmit 45W/50W<12A
Frequency Stability±0.5 ppm
Antenna Impedance50Ω
Dimensions (H x W x D)61.5 x 177 x 179 mm
Weight1520g
LCD Display2.4 inch
Receiver
Sensitivity – Analog0.18μV (12dB SINAD); 0.16μV (Typical) (12dB SINAD)
Sensitivity – Digital0.18μV/BER5%
SelectivityTIA-603: 60dB@12.5kHz / 70dB@20/25kHz; ETSI: 60dB@12.5kHz / 70dB@20/25kHz
IntermodulationTIA-603: 70dB@12.5/20/25kHz; ETSI: 70dB@12.5/20/25kHz
Spurious Response RejectionTIA-603: 70dB@12.5/20/25kHz; ETSI: 70dB@12.5/20/25kHz
BlockingTIA-603: 80dB; ETSI: 84dB
Hum and Noise40dB@12.5kHz, 43dB@20kHz, 45dB@25kHz
Rated Audio Power OutputInternal (20 Ohm load): 3W; External (8 Ohm load): 7.5W
Max Audio Power OutputInternal (20 Ohm load): 8W; External (8 Ohm load): 20W
Rated Audio Distortion≤3%
Audio Response+1 ~ -3dB
Conducted Spurious Emission<-57dBm
Transmitter
RF Power OutputLow power: UHF: 1–25W, VHF: 1–25W; High power: UHF: 1–45W, VHF: 1–50W
FM Modulation11K0F3E@12.5kHz; 14K0F3E@20kHz; 16K0F3E@25kHz
4FSK Digital Modulation12.5kHz Data Only: 7K60FXD; 12.5kHz Data and Voice: 7K60FXW
Conducted/Radiated Emission-36dBm<1GHz; -30dBm>1GHz
Modulation Limiting±2.5kHz @ 12.5kHz; ±4.0kHz @ 20kHz; ±5.0kHz @ 25kHz
FM Hum & Noise40dB @ 12.5kHz; 43dB @ 20kHz; 45dB @ 25kHz
Adjacent Channel Power60dB @ 12.5kHz; 70dB @ 20/25kHz
Audio Response+1 ~ -3dB
Audio Distortion≤3%
Digital Vocoder TypeAMBE+2™
Digital ProtocolETSI-TS102 361-1,-2,-3
Environmental
Operating Temperature-30°C ~ +60°C
Storage Temperature-40°C ~ +85°C
ESDIEC 61000-4-2 (Level 4); ±8kV (Contact); ±15kV (Air)
American Military StandardMIL-STD-810 G
Dustproof & WaterproofIP54
HumidityPer MIL-STD-810 G Standard
Shock & VibrationPer MIL-STD-810 G Standard
Location Service
GNSS*GPS, GPS+GLONASS, GPS+BDS
TTFF (Time To First Fix) Cold Start<1minute
TTFF (Time To First Fix) Hot Start<10seconds
Horizontal Accuracy<5meters
Installation forms
Standard control headSmall vehicles, motorcycles
Remote control head (Single or dual), connection cable (3m, 10m, or 40m)Ambulance, fire engine, truck, large bus
Fixed stationDesktop office
Features
Operating ModesSupports digital, analog, conventional, and trunking communication.
Voice ServicesOffers private, group, and all-call options.
Text MessagingEnables private messages, group messages, and quick texts.
SolutionsIncludes IP transit, back-to-back, wireless link, and clarity transmission.
SecurityEquipped with emergency alarm, lone worker mode, authentication, encryption (basic, full, hardware), and over-the-air security.
GPIO PinsSupports public address, horn/lights, voice notify, and ignition sense.
Supplementary FeaturesIncludes alert call, remote monitor, enable/disable, and radio check.
Analog ModeSupports 2-tone signaling and HDC1200.

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