User's Manual

Guide to the SRX800 Receiver Preliminary
TY P E S O F TR A N S M I T T E RS
A Lotek transmitter uses a series of single-frequency pulses to communicate with
the SRX800 receiver. Lotek radio transmitters operate at a frequency range of
between 140 and 174 MHz. Three main types of transmitters are used:
• Coded ID Only Transmitters
• identified by a group of four pulses separated by specific amounts of time,
which the receiver interprets to form the ID of that transmitter
• Coded Sensor Transmitters : - identified by a group of four pulses that can
vary the amount of time between each pulse to convey sensor information
(e.g. temperature, pressure).
• Beeper
• Transmitters : - identified as a single frequency pulse that is typically used
in large animal studies. They are used to establish an approximate location of
a collared animal, within a kilometer or so.