HMT2 Datasheet, PDF (1/7 Pages) Radiometrix Ltd – NBFM Multi-channel 500mW UHF Transmitter

Hartcran House, 231 Kenton Lane, Harrow, Middlesex, HA3 8RP, England
Tel: [phone], Fax: [phone], www.radiometrix.com
HMT2-458-5
PRELIMINARY
Issue A, 06^th February 2013
NBFM Multi-channel 500mW UHF Transmitter
The HMT2 transmitter module offers a
500mW RF output in the UK 458MHz. This
unit is ideally suited to applications where
existing lower powered transmitters
provide insufficient range. The HMT2
transmitter is a multi-channel, narrowband
design, suitable for licensed and
unlicensed UHF allocations. Together with
a matching LMR2 receiver a one-way radio
data link can be achieved over a distance
of well over 5km (with a suitable antenna).
Figure 1: HMT2-458-5
Features
Conforms to EN 300 220-3 and EN 301 489-3
PLL Synthesized transmitter with TCXO
Data rates up to 5 kbps for standard module
Usable range over 5km
Fully screened
User configurable via RS232 interface
Low power requirements
Applications
Handheld terminals
On-site paging system (e.g. Nurse call pagers)
Heavy vehicle/machine remote controls
Data loggers
Industrial telemetry and telecommand
High-end security and fire alarms
Vehicle data up/download
Technical Summary
Operating frequency: 458.525 - 459.1MHz (standard)
or 458.8 - 459.3MHz and 461.3MHz (for paging)
16 parallel / 32 serial select channels
Transmit power: +27dBm (500mW) nominal
Supply range: +5V regulated (or +6 - +9V for -R version)
Current consumption: 350mA transmit, <5µA standby
Data bit rate: 5kbps max. (standard module)
Size: 66 x 23 x 9 mm
Radiometrix Ltd
HMT2 Data Sheet
page 1