LMT0
27MHz HF Narrow Band FM multi channel Transmitter
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
- 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
- Controlling the movement of the model, in the air, on land or over or under the water surface
- Non-specific Short Range Devices (SRD) - Telemetry, Telecommand, Alarms and Data in general
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.