The BiM-418-40 and BiM-433-40 are miniature UHF radio modules capable of half duplex data transmission at speeds up to 40 kbit/s over distances of 30 meters "in-building" and 120 meters open ground..

• Typical features include:
  
• Miniature PCB Mounting module SAW controlled FM transmission at -6dBm ERP.
  
• License Exempt operation in UK on 418MHz, MPT 1340 (BiM-418-40)
  
• ETS 300-220 tested for European use on 433.92 MHz (BiM-433-40)
  
• SAW controlled FM transmission at -6dBm ERP.
  
• Double conversion Superhet receiver
  
• -107dBm receive sensitivity
  
• Single 4.5 to 5.5 Volt supply < 15mA (tx or rx)
  
• Half duplex data at up to 40 kbit/s
  
• Reliable 30 meter in-building range
  
• Direct interface to 5V CMOS logic
  
• On board data slicer, supply switches and antenna change over.
  
• Fast 1ms power up enable for duty cycle power saving
  

The module integrates a low power UHF FM transmitter and matching superhet receiver together with the data recovery and TX/RX change over circuits to provide a low cost solution to implementing a Bi-directional short range radio data link. The high data rates (up to 40kbit/s) and fast TX/RX changeover ( <1ms ) make the BiM transceiver ideal for high integrity one to one links / multi-node packet switch networks. Rapid RX power up ( <1ms ) allows effective duty cycle power saving of the receiver for battery powered applications (e.g. 15µA average @ 1ms ON : 1sec OFF).