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Advanced digital portable radio

Rx665

Empower Your Operation with Rx665 Series

Rx665, Advanced digital portable radio

Overview

Overview

Compact, lightweight, and powerful – the Rx665 Series delivers crystal-clear audio, extended coverage, long battery life, and exceptional durability. Designed for customer-facing teams, it ensures efficient communication, improved productivity, and uninterrupted service.

Key features

  • Light & StylishSlim and lightweight design for easy portability with clear audio for professional-grade communication.
  • Long Battery LifeOver 20 hours of usage with advanced lithium polymer battery – no need to recharge during shifts.
  • Rugged & DurableMIL-STD-810G certified and IP67 rated – resists drops up to 2 meters and tough environmental conditions.
  • Clear AudioPowerful speaker, AI noise cancellation, and water-porting technology ensure clear sound even in noisy or wet environments. AI-based noise cancellation reduces background noise and howling by up to 30dB, ensuring clear audio for the receiver regardless of the caller's noisy environment.
  • Easy to UseThe Rx665 Series is compact, discreet, and user-friendly with tactile PTT, programmable buttons, and BT5.0 wireless connectivity – ideal for hands-free operation.
  • Extended RangeEnhanced receiver sensitivity ensures reliable performance in weak signal areas, improving safety and communication for field teams.

Specifications

General

Frequency Range
UHF: 400-527MHz VHF: 136-174MHz
Channel Capacity
1024
Zone Capacity
64
Zone Channels
256
Channel Spacing
12.5kHz/20kHz/25kHz
Operating Voltage
7.7V (rated)
Battery
2000 mAh Li-polymer
Battery Life (5/5/90)
20h (GNSS OFF); 16h (GNSS ON)
Frequency Stability
±0.5ppm
Antenna Impedance
50Ω
Dimensions (H x W x D)
122 x 55 x 31.5mm
Weight (with antenna & battery)
280g
Display
160 x128pixels, 65536colors, 1.8inch, 6rows
BT
BT 5.0 BLE+EDR

Receiver

Sensitivity
Analog: 0.18μV (12dB SINAD); 0.16μV (Typical) (12dB SINAD); Digital: 0.18μV/BER5%
Selectivity
TIA-603: 60dB@12.5kHz / 70dB@20/25kHz; ETSI: 60dB@12.5kHz / 70dB@20/25kHz
Intermodulation
TIA-603: 70dB@12.5/20/25kHz; ETSI: 65dB@12.5/20/25kHz
Spurious Response Rejection
TIA-603: 70dB@12.5/20/25kHz; ETSI: 70dB@12.5/20/25kHz
Blocking
TIA-603: 80dB ETSI: 84dB
Hum and Noise
40dB@12.5kHz; 43dB@20kHz; 45dB@25kHz
Rated Audio Power Output
0.5W
Rated Audio Distortion
≤3%
Audio Response
+1 ~ -3dB
Conducted Spurious Emission
<-57dBm

Transmitter

RF Power Output
UHF: 1W/4W VHF: 1W/5W
FM Modulation
11K0F3E@12.5kHz; 14K0F3E@20kHz; 16K0F3E@25kHz
4FSK Digital Modulation
12.5kHz 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 & Noise
40dB@12.5kHz; 43dB@20kHz; 45dB@25kHz
Adjacent Channel Power
60dB@12.5kHz; 70dB@20/25kHz
Audio Response
+1 ~ -3dB
Audio Distortion
≤3%
Digital Vocoder Type
AMBE+2™
Digital Protocol
ETSI-TS102 361-1,-2,-3

Environmental

Operating Temperature
-30°C* ~ +60°C (*Radio only – Battery -20°C)
Storage Temperature
-40°C ~ +85°C
ESD
IEC 61000-4-2 (Level 4); ±8kV (contact); ±15kV (air)
Dustproof & Waterproof
IEC60529-IP67
Humidity
Per MIL-STD-810G Standard
Shock and Vibration
Per MIL-STD-810G Standard

Location Services

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

Features

Operating Modes
Analog conventional; Digital conventional; XPT
Voice Service
Private Call; Group Call; All Call; Emergency Call; Priority Interrupt
Data Service
Text Message; Quick Text Message
Connection
BT Audio; BT Data; GNSS (GPS, GLONASS, BDS); Open API
Safety
Emergency; Man Down; Lone Worker; Authentication; Air Interface Encryption; End-to-End Encryption; Disable/Enable
Analog Mode
2-Tone signaling; 5-Tone Signalling*; HDC1200
Supplementary
Profiles; Programmable Buttons; Interface Switcher; Roaming; Remote Monitor; Radio Check; Alert Call

Downloads

Open to everyone

Datasheet (PDF)Rx665 · No registration neededDownload Rx665 datasheet (PDF)

Available after registration

Fill in a short form once to download:

Accessories

Chargers and headsets must be used as the certificate allows.

Standard

  • Charger
  • Adapter (12V/1A)
  • Li-polymer battery 2000mAh
  • Antenna
  • Belt clip
  • Strap

Optional

  • BT Wireless earpiece
  • Programming cable (USB port)
  • BT wireless ring PTT
  • BT Wireless remote speaker microphone
  • Wired earpiece
  • Multi-unit charger

Approvals for Indian sites

Realix holds ATEX, IECEx, PESO, BIS and ISO certification at group level, and is listed on GeM.

See our certifications

Talk to us

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