QPT1
VHF Narrow Band FM 2 Watt multi channel transmitter
The QPT transmitter module offers a 2 watt RF output VHF radio link, in either a robust aluminium extruded casing, or a smaller footprint PCB mounted shield can. This unit is ideally suited to applications where existing lower powered transmitters provide insufficient range. The QPT1 transmitter is a multi-channel, narrowband design, suitable for licensed and unlicensed VHF allocations, FCC part 90 operation, and the 2M amateur band. Together with a matching LMR1 or RX1M receiver a one-way radio data link can be achieved over a distance of well over 10km (with a suitable antenna).
Features
- PLL synthesizer with TCXO
- Data rates up to 5 kbps for standard module
- Usable range over 10km
- Conforms to EN 300 220-3 and EN 301 489-3
- Re-programmable via RS232 interface
Technical Summary
- Operating frequency: 144.000 - 144.775 (25KHz steps)
- Any 2MHz segment in 135- 175MHz
- 16 channels selected by parallel interface
- or 32 channels by serial command
- Transmit power: 2 W (+33dBm) nominal (1 watt version available)
- Supply range: 12V (11 – 15V)
- Current consumption: 550mA typ.
- Data bit rate: 5kbps max
- Size: 68 x 55 x 15mm (pcb mounted version)
83 x 64 x 30 mm (extrusion case version)
(dimensions do not include connectors)
Applications
- Amateur radio
- MURS units
- Industrial telemetry and telecommand
- High-end security systems
- APRS systems
- Vehicle data up/download
- ROV/machinery controls