The TX3H-869.5-15, from low-power radio specialist Radiometrix, is an FM
transmitter module achieving a power output of 450mW at 869.5MHz. It is
fully pin-compatible with the company’s established range of SIL TX modules
and is a drop-in UHF replacement for the TX1H VHF product, having near
identical dimensions of only 45mm x 17mm x 6mm.
TX3H is seen as an ideal choice for the designer of a licence exempt
wireless data application where the size of antenna is restricted - yet a
range in kilometres is also specified. The module can support data rates of
up to 15kbits/s and has a potential range of 5km or more when paired with
Radiometrix receivers such as the new RX3G, depending on the type of antenna
used and the environment. The module requires a 5V regulated supply capable
of delivering 350mA during transmissions.
The TX3H-869.5-15 operates within the European 869.40-869.65MHz sub-band
allocation although custom frequencies may be accommodated on request. It
has been designed to comply with EN301 489 (EMC) and EN300 220 (SRD) radio
standards.
This module can be employed in a large number of end applications, such as
asset tracking systems, meter readers, industrial telemetry / telecommand
equipment, data loggers, in-building environmental monitoring / control
systems, social alarms, high-end security/fire alarms, and vehicle data up /
download, says the company.
