NL5500 Radio Modem

Wireless Data Modem NL5500
  • High Performance DSP TMS320VC5509 - 288 MIPS
  • Overview
  • Specifications
  • Applications
  • Support

The NL5500 Transceiver Series is a price/performance leader in licensed conventional radios in both the VHF and UHF frequency range. The capability for transparent and direct asynchronous communication offers real-time communication. The NL5500 is fully compatible with RF Neulink’s NL6000. It will communicate and coexist with NL6000s, while providing excellent throughput and long range for multiple address systems. The NL5500 Transceiver Series is field configurable as a master station or remote radio. These units can operate as a half-duplex or simplex radios. The simplex mode facilitates peer-to-peer radio communications while using a carrier sense (CSMA) channel collision avoidance technique.

The NL5500 is ideal for any system where cost-effective performance, reliable data rates, and compact size are a requirement.

RF Neulink VHF/UHF Radio Modem Comparison

Technical Specifications

General VHF UHF
Frequency Range 136–174 MHz 400–470 MHz
Channel Spacing 12.5 or 25 kHz 12.5 or 25 kHz
Channel Increment 2.5 kHz 5/6.25 kHz
Operating Temperature −30° to +60° −30° to +60°
Humidity 90% at 40° C non-condensing
Frequency Stability (−30° to +60°) 1.5 PPM 1.5 PPM
12.5 kHz Channel Data Rate 12 kbps 12 kbps
25 kHz Channel Data Rate 22 kbps 22 kbps
User Interface
Data Rate of RS-232 Serial Port 1200 – 38,400 bps configurable
Connectors 9 pin D type as DCE
Addressing Selective ID, Group & Broadcast
Supply Voltage
Input Voltage Range 11–16 VDC with internal regulator
NL6000 Max Current Drain ≤2.5 A ≤2.5 A
Transmitter
Operating Bandwidth 26 MHz 20 MHz
RF Output Power 1–6 watts 1–6 watts
Duty Cycle 5 to 100% depending on power and temperature
RF Load Impedance 50 Ohms 50 Ohms
Transmitter Attack Time ≤15 ms ≤15 ms
Spurious & Harmonics ≤−20 dbm ≤−20 dbm
FM Hum & Noise 12.5 kHz channel operation ≥40 db ≥40 db
FM Hum & Noise 25 kHz channel operation ≥45 db ≥45 db
Current Drain 1 watt ≤1.0 A ≤1.0 A
Current Drain 6 watt ≤2.4 A ≤2.4 A
Receiver
Operating Bandwidth 26 MHz 20 MHz
Sensitivity(12 db SINAD w de-emphasis) ≤0.28uV ≤0.28uV
Adjacent Channel Selectivity
+/−12.5 w/narrow IR ≥60 db ≥60 db
+/−25 w/wide IR ≥70 db ≥70 db
Spurious & Image Rejection ≥70 db ≥70 db
Intermodulation Rejection ≥70 db ≥70 db
FM Hum & Noise
12.5 kHz channel operation ≥40 db ≥40 db
25 kHz channel operation ≥45 db ≥45 db
Conducted Spurious ≤−57 dbm ≤−57 dbm
Receive Attack time ≤15 ms ≤15ms
RSSI Squelch Attack Time ≤15 ms ≤15ms
Receive Current Drain ≤80 mA ≤75 mA

See Spec Sheet and User Manual for more information

For outside operation of radio modem products a NEMA 4 enclosure is recommended.

RF Neulink reserves the right to change specifications of this product at any time without notice and without obligation to notify any person of such changes. For outside operation of radio modem products a

Telemetry Applications

  • Data Terminals
  • Water Management
  • Remote Data Loggers
  • Oil & Gas Monitoring
  • Irrigation Control Security Systems

Mobile Applications

  • Database Access
  • Computer Aided Dispatch
  • Vehicle Tracking
  • Asset Tracking
  • Fleet Management

Application Ideas

  • Oil and Gas Monitoring
  • Irrigation Control
  • Data Logging
  • Water Management

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Wireless Data Modem

  • Modem and Transceiver
  • Synthesized VHF and UHF
  • Narrow Band or Wideband
  • Compact size 3.0" L x 2.6" W x 1.4" H
  • Complete Programmable Features
  • Powerful DSP—88 MIPS
  • Superior Radio Performance
  • Serial Port—RS232
  • CRC (For FEC use NL6000)

Frequency Range

  • VHF
  • 136-162 MHz
  • 148-174 MHz
  • 216-235 Mhz
  • UHF
  • 400-420 MHz
  • 450-470 MHz

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