LMR0-27-5 : Low Cost HF Narrowband FM Multi-Channel Radio Recevier, 27MHz

Technical Summary 

• Operating frequencies: 10mW 26.957-27.283MHz Non-specific Short Range Devices (SRD)
  100mW 26.995, 27.045, 27.095, 27.145, 27.195 MHz Model Control
  Any 0.5MHz wide sub-band in 26-28MHz 
• Transmit power: +10dBm (10mW) nominal @ 4.1V (factory adjustable 1 - 25mW) 
• Receiver sensitivity: -115dBm (for 12 dB SINAD)
• Supply range: 4.1V – 15V Transmitter
  3.1V – 15V Receiver 
• Current consumption: 40mA @ 10mW Transmit
  20mA Receive
• Data bit rate: 4kbps max.

LMR0-27-5 : Low Cost HF Narrowband FM Multi-Channel Radio Recevier, 27MHz

LMR0-27-5 Transmitter

• HF Narrowband Multichannel FM Radio Transmitter
• Frequency: 27MHz
• Data Rate: 5kbps
• RX Sensitivity: -115dBm
• Country: AUS
• Radiocommunications (Low Interference Potential Devices) Class Licence 2000

Overview

The LMT0 transmitter and LMR0 receiver modules offer a 10kHz channel spacing multi channel, low power, and reliable HF data link. This makes the LMT0/LMR0 pair ideally suited to those low power applications where existing wideband modules have insufficient range, or where low cost multi-channel operation is needed without compromising on RF specification or regulatory requirement.

Features 

• 
  Conforms to EN 300 220-2 and EN 301 489-3 
• 
  High performance double superhet. PLL synthesizer with TCXO 
• 
  6 channels (standard). Up to 16 parallel select or 32 serial select channels 
• 
  quasi-dc (peak sampling) data recovery circuit (for enhanced performance on unbalanced 
• datastreams) 
• 
  Data rates up to 4 kbps for standard module 
• 
  Usable range over 1km 
• 
  Fully screened. Low profile 
• 
  Feature-rich interface (RSSI, analogue and digital baseband)
• 
  Re-programmable via UART interface 
• 
  Low power requirements 

Applications 

• 
  Radio Control (R/C) Radio Service under FCC Part 95 subpart C 
• 
  Radio model control 
• 
  Telemetry and telecommand 
• 
  Wireless door entry systems 
• 
  Simple On/Off switching 
• 
  In-building environmental monitoring and control 
• 
  Security and fire alarms 
• 
  Vehicle/machinery controls