UHF Multi Channel Wide Band FM Transceiver
RDL2
 

RDL2 is a half-duplex multi channel wideband FM transceiver in a BiM series footprint and operates on 433.05-434.79MHz European SRD band.

This makes the RDL2 ideally suited to those low power applications where low cost multi-channel operation is required.

Figure 1: RDL2-433-32 transceiver
The RDL2 is a half duplex radio transceiver module for use in high-speed bi-directional data transfer applications at ranges up to 300metres. The small footprint of 23 x 33mm together with low power requirements of <28mA @ 5V enable convenient PCB installation.

RDL2 allows operation on one of 5 pre-set frequencies in the 433MHz European licence exempt frequency band. These frequencies are non-overlapping and simultaneous operation of RDL2s in the same area on different channels will be possible. Units are supplied on 433.92MHz (Ch0) as default.
 

Features

  • Conforms to European EN 301 489-3 and ETSI EN 300 220-3
  • Data rates up to 32kbps
  • High performance double superhet, PLL synthesizer
  • Usable range up to 300 metres external, 75 metres in building
  • SAW front end filter and full screening
  • Low profile with small footprint
  • 5 serial select wideband channels
  • Available as RDL2T transmitter and RDL2R receiver for one-way communication

Applications

  • Wireless Handheld / portable terminals
  • PDAs, organisers & laptops
  • Industrial telemetry and telecommand
  • In-building environmental monitoring and control
  • Remote data acquisition system, data logging
  • Fleet management, vehicle data acquisition

Technical Summary

  • Operating frequency: 433.925MHz (default)
  • Modulation: 16kbps bi-phase FSK
  • Supply: 5V at 28mA transmit, 24mA receive/idle
  • Transmit power: +10dBm (10mW)
  • Receiver sensitivity: -115dBm for 12dB SINAD
  • Adjacent channel rejection: 65db @ ±320kHz
  • Spurious emission: <-65dBm
  • Receiver Blocking: 80dB
Evaluation Platform: Universal Evaluation kit or Narrow Band Evaluation Kit