Anywhere, Anytime,
With you in Battlefield.

GR-611B Secure Personal Radio

Reliable and Secure Connectivity for Every Soldier - Team Radio

[Key Features]

Glocom-equipped soldier

■Frequency range 350~450MHz ■Completely automatic & hands-free operation (VOX) ■Embedded GPS - C4I compatible, search & rescue, navigation ■256-bits AES digital secure - secure voice & data ■RF Power 2W - short & mid range communication ■Bluetooth data interface - Android terminal compatible ■Built-in wireless fill-gun (OTAR) - secure key distribution ■Compact & light weight


The GR-611B Secure Personal Radio (SPR) is designed specially to meet the unique demands of providing secure and reliable voice, data and situation awareness communication at soldier level. Optimized for maximum performance across the highly variable environments soldiers operate in, and enabling range extending networks, the GR-611B provides continuous coverage in the 350 to 450MHz frequency range and ensures reliable connectivity between squad members and with command level intelligence. The GR-611B has already been adopted as the standardized personal radio platform for multiple soldier modernization programs in local and some countries.


■Front line soldiers ■Special forces ■Warships/Airborne landing control ■VIP protection ■Guards ■Police

The GR-611B provides secure, digitized voice and data communications to soldiers without distracting their attention from the task at hand. The radio’s small and light weight, and it powered by lithium-ion battery. A unique team-based waveform and digital wireless network allows reliable communications in situation where traditional backbone is not available or is out of range. The radio provides full-duplex, multi-group voice conferencing service, so it allows several simultaneous talkers on the net with an unlimited number of listeners - resulting in a more natural, dynamic operation environment, free from the constraints of traditional radio systems. The radio is data-enabled and incorporates a built-in GPS receiver, allowing easy-to-use situation awareness, position tracking and messaging services. A Bluetooth data interface allows connection of Android—mobile devices for enhanced data applications. All transmissions are secured by built-in 256-bit AES encryption algorithm. The SPR - reliable and secure connectivity for every soldier, assured by Glocom.

General Specifications

Frequency range350~450MHz
Band Width25kHz, 400kHz
Preset Channel16 programmable presets with flexible groups
Position ReportingAutomatic reporting by built-in GPS
Operation ModeFull-duplex up to 3 simultaneous talkers
Unlimited listeners
Up to 2 hops Voice Relay
Selectable VOX or PTT activation
Simultaneous data & voice
RangeOpen terrain: 2~3km (10km @ LOS)
Urban: Up to 1000m
Jungle: 800m
Voice EncodingMELP2400, CVSD
Frequency Stability± 2ppm
RF Power2W, adjustable to 0.5W, 2W
AntennaWhip antenna
RF InterfaceSMA, 50Ω nominal unbalanced
Encryption256-bit AES
Data Rate4.8kbps, 9.6kbps, 19.2kbps, 38.4kbps,57.6kbps, 115.2kbps
Data InterfaceBluetooth, RS-232C
ProgrammingWireless fill-gun (OTAR)
BatteryRechargeable Li-Ion 3.7VDC
Current2.5A@Tx, 500mA@Rx
Battery Duration12hours @ Tx(1):Rx(1):Stby(10)
Dimension175x74x42mm with battery
AlertsAudible status, language programmable
Software (Firmware)Software-defined, Upgradable via RS-232C port
Operating Temp.-30~60° C
Storage Temp.-45~70° C
Immersion30 minutes @ 2m
MTBF5000 hours
Glocom-equpped soldier
Glocom-equpped soldier

GR-611B Secure Personal Radio Set

The GR-611B Secure Personal Radio (SPR) provides dismounted soldiers with the tactical information exchange and situation awareness sharing with command & control unit, and among each other in real-time on battlefield. The standard set includes:-

  • GR-611BSecure Personal Radio
  • A611B-WA01Whip Antenna
  • A611B-GA01GPS Handheld Antenna
  • A611B-BP01Battery Pack
  • A611B-BC1BBattery Charger
  • A611B-CP01Carry Pouch
  • A611B-UM10 User Manual


  • A611B-TH01Tactical Headset
  • A611B-LH01Light Headset
  • A611B-SM01Speaker Microphone
  • A611B-AND10Setup/Control Application (Android)
  • Panasonic/UlefoneRugged Tablet (Android)

Whip Antenna(A611B-WA01)

Frequency range:350~450MHz, Gain:≥-1dBi, VSWR:≤1.5:1 Typical, Impedance:50Ω, Female SMA, 3W, Length: ≤21cm


GPS Handheld Antenna(A611B-GA01)

Center Frequency:1575.42±1.023MHz, Bandwidth:10MHz min, Gain@Zenith:5.0dBic typ, Gain@10° elevation:-1.0dBic min, Polarization: R.H.C.P, Axial Ratio:1.0dB typ.


Battery Pack(A611B-BP01)

Li-Ion, Voltage:3.3V~4.2V(3.7V Nominal), Capacity:12000mAh, Max. load current:1A, Charging time:Max. 360 minutes, Protection by enclosure Waterproof


Battery Charger(A611B-BC1B)

Charging time:6 hours. Input:100~240VAC/0.45A, Socket:USB


Carry Pouch(A611B-CP01)

The lightweight carry pouch is made of durable Cordura fabric and incorporates Molle straps for attachment to a variety of load-bearing vests and other gear. The radio is held securely in the holster to prevent accidental loss.


User Manual(A611B-UM10)

This is field reference user manual for GR-611B SPR.


Tactical Headset(A611B-TH01)

It is the head-mount, single left earphone, designed for extended wear in active environments. Its ultra lightweight frame offers superior comfort and fit.


Light Headset(A611B-LH01)

Light headset with single PTT is the head-mount, single left earphone. Its ultra lightweight frame offers superior comfort and fit.


Speaker Microphone(A611B-SM01)

Speaker:8Ω/85dB/mW@1kHz, Microphone:2200Ohm, -45dB, 200~4kHz, Color:Black, Cable length:57cm, Built-in Clip


Rugged Tablet (Android)