Radiometrix
Hartcran House, Gibbs Couch, Watford, WD19 5EZ, England
Issue 3, 13 July 2001
Tel: +44 (0) 20 8428 1220, Fax: +44 (0) 20 8428 1221
BiM-UHF
Low Power UHF Data Transceiver Module
UK Version - BiM-418-40
Euro Version - BiM-433-40
The BiM-418-40 and BiM-433-40 are
miniature
UHF
radio
modules
capable
of
half
duplex
data
transmission at speeds upto 40 Kbit/s
over distances of
30 metres "in-
building" and 120 metres open ground
BiM-UHF transceiver
Features
Miniature PCB Mounting module
Licence Exempt operation in UK on 418MHz, MPT 1340 (BiM-418-40)
ETS 300-220 tested for European use on 433.92 MHz (BiM-433-40)
SAW controlled FM transmission at -6dBm ERP.
Double conversion Superhet receiver
-107dBm receive sensitivity
Single 4.5 to 5.5V supply < 15mA (tx or rx)
Half duplex data at upto 40 kbit/s
Reliable 30 metre in-building range
Direct interface to 5V CMOS logic
Fast 1ms power up enable for duty cycle power saving
On board data slicer, supply switches and antenna change over.
The module integrates a low power UHF FM transmitter and matching superhet receiver together with
the data recovery and TX/RX change over circuits to provide a low cost solution to implementing a Bi-
directional short range radio data link. The high data rates (upto 40kbit/s) and fast TX/RX changeover
(<1ms) make the BiM transceiver ideal for high integrity one to one links / multi-node packet switch
networks. Rapid RX power up ( <1ms ) allows effective duty cycle power saving of the receiver for
battery powered applications
(e.g. 15µA average @ 1ms ON : 1sec OFF).
Typical applications :-
Medium speed computer networks
Laptop > PC > printer links
High integrity wireless Fire / Security alarms
Building environment control / monitoring
Vehicle alarm systems
Remote meter reading
Authorisation / Access control
Radiometrix Ltd, BiM Data Sheet
page 1
RADIOMETRIX [ RADIOMETRIX LTD ]
