United Kingdom & EMEA

  • NXR-900K

Additional Images


800 MHz NEXEDGE Digital/Analogue Repeater/Base Station (Non-EU Use)


Discontinued model


Key Features

NXDN Digital Air Interface
AMBE+2 Vocoder for Natural Sounding Digital Voice
Operates in NXDN Digital Conventional and FM Analogue Modes, even on the same channel
Autosenses Received Mode (Digital or Analogue)
30 Channel Scanning Base Station (Conventional Mode)
Split frequency operation:-
TX - 851-870 MHz, RX - 806-825 MHz
System Manager software provides USB Secure Key Access, Activity Monitoring, Network Diagnostics, Call Logging, Remote Firmware Updating and many more features
Digital Multi-Site Trunking via Software License

Supplied With

D.C. CableYes
Front GlassYes
FuseYes, 7.5A
Hardware FixtureYes
Instruction ManualYes, English, Spanish & French
Screw SetYes

Base Station & Repeater Features

16 CTCSS/DCS Repeater Controller Built-InYes
19" Rack Mount DesignYes
Audio DistortionLess Than 2%
"Base Station" or "Repeater" Mode OperationYes
Base Station FeaturesYes
DTMF AUX Input MonitoringYes
DTMF AUX Output ControlYes
DTMF Front Panel PF-Key ControlYes
EIA Voter Tone GenerationYes
External FM Controller InterfaceYes
Flash ROM for Future UpgradesYes
Front Mounted SpeakerYes
Full-Duplex OperationYes
Hang TimerYes
LED Display & IndicatorsYes
Microphone Jack on Front PanelYes
Program/Modem InterfaceYes
Programmable AUX I/OsYes
Programmable Function Keys6
Remote Termination InterfaceYes
Repeater FeaturesYes
Time-Out TimerYes
Volume Control on Front PanelYes
Windows Programming and Tuning SoftwareYes

NEXEDGE Features

Feature Upgrade - Version 2.0Includes:- Conventional IP Network (up to 48 sites), Expanded Inter-Group call capability in Trunking mode (up to 16 sites on Uni-cast/48 sites on Multi-cast), Uni-cast/Multi-cast selectable, Site Roaming on Conventional IP Network.
Multi-Site IP Network CompatibleYes
NXDN Conventional IncludedYes
NXDN Digital 12.5/6.25kHz Channel SpacingYes

NEXEDGE Base+Repeater Features

16 RAN Repeater Controller Built-In - Conventional ModeYes
Busy Call Queuing Priority - Trunked ModeYes
Call Queue Pre-emption - Trunking ModeYes
Channels Per Site - Trunking Mode30
Control Channel Rotation - Trunking ModeYes
Control/Traffic Channel Switching - Trunking ModeYes
Cross/Busy - Trunking ModeYes
ESN Validation - Trunking ModeYes
Ethernet Network Interface - IP Network ModeYes
Fail-Soft Mode - Trunking ModeYes
GIDs Per Network - IP Network Mode60000
GIDs Per Site1000 in Conventional Mode, 3000 in Trunking Mode
Individual & Group Selcall - Conventional ModeYes
IP LAN/WAN Connectivity - IP Network ModeYes
Late Entry - Trunking ModeYes
Mixed FM/Digital Operation - Conventional ModeYes
NXDN Scrambler built-InYes
OCXO Option for 6.25KHz OperationYes
RSSI Level IndicationYes
Sites Per Network - IP Network Mode16
UIDs Per Network - IP Network Mode60000
UIDs Per Site1000 in Conventional Mode, 3000 in Trunking Mode
Wide Area All-Group Call - IP Network ModeYes

Applicable Standards

Measurement - EIA StandardsYes

Technical Specifications

Number of Channels30
Channel Frequency Spread64 MHz
Channel Spacing(Analogue): 12.5kHz/25kHz
Channel Spacing - Digital - Wide/Narrow12.5 kHz/6.25 kHz
Analogue Maximum Deviation2.5kHz/4.0kHz/5.0kHz
Antenna Impedance - 50 OhmYes
Antenna ConnectorBNC
Duty Cycle100%
Frequency Stability Parameters± 0.5 ppm
Operating Temperature Range-30 °C to + 60 °C
Operating Voltage13.8 V DC ± 15%
PLL Channel Steps3.125kHz/5.0 kHz/6.25 kHz
Dimensions483 x 44 x 331mm (Projections not included)
Weight (net)5 kg

Receiver Specifications

Audio Output3 Watt with less than 5% distortion
FM Hum & Noise25kHz/12.5kHz - 55 dB/50 dB
Frequency Coverage806 - 825 MHz
Intermodulation(Analogue): 84 dB
Selectivity (Analogue)25 kHz/12.5 kHz = 81 dB/73 dB
Sensitivity(Digital): 12.5kHz/6.25kHz = 0.33/0.27 microvolt at 3% BER
Sensitivity - EIA 12 dB SINAD0.30 µV
Spurious Reponse Rejection (Analogue)93 dB

Transmitter Specifications

RF Power Output360 mW to 100 mW (drive output for external PA)
FM Noise (EIA)Analogue Mode - 25kHz/12.5kHz - 50 dB/45 dB
Frequency Coverage851 - 870 MHz
Modulation DistortionLess than 1%
Spurious & Harmonics73 dB