NiM2
The narrow band NiM2 transceiver offers a low power, reliable data link in a Radiometrix transceiver standard pin out and footprint. This makes the NiM2 ideally suited to those low power applications where existing single frequency wideband UHF modules have insufficient range.

Figure 1: NiM2-434.650-10

Features

  • Conforms to EN 300 220-3 and EN 301 489-3 (10mW version only)
  • Standard frequency: 434.65 and 434.075MHz
  • Custom frequencies available in 433MHz (EU) band
  • Data rates up to 10kbps
  • Usable range over 500m
  • 25kHz Channel spacing
  • Feature-rich interface (RSSI, analogue and digital baseband)
  • Longer range compared to Wide Band FM modules

Available for licence-exempt operation in the 433MHz EU band, the NiM2 modules combine effective screening with internal filtering to minimise spurious radiation and susceptibility thereby ensuring EMC compliance. They can be used in existing low data rate (<10kbps) applications where the operating range of the system using wide band transceivers need to be extended. Because of their small size and low power consumption, NiM2 is ideal for use in battery-powered portable applications.

NiM2 is also available as separate NiM2T transmitter and NiM2R receiver, which can be used as dual-in-line equivalents of NTX2 transmitter and NRX2 receiver respectively.
Applications
  • EPOS equipment, barcode scanners
  • Data loggers
  • Industrial telemetry and telecommand
  • In-building environmental monitoring and control
  • High-end security and fire alarms
  • DGPS systems
  • Vehicle data up/download

Technical Summary

  • 3 stage crystal controlled VCXO
  • Double conversion FM superhet
  • SAW band pass filter, image rejection: 50dB
  • Operating frequency: 434.65 and 434.075MHz
  • Transmit power: +10dBm (10mW)l
  • Supply range: 2.9V - 15V @ 20 mA transmit, 15mA receive
  • Data bit rate: 10kbps max.
  • RSSI output with >60dBm range
  • Receiver sensitivity: -118dBm(for 12 dB SINAD)