Lotek Wireless Inc SRX600 사용자 설명서
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H A R D W A R E D E T A I L S
Types of Transmitters
Guide to the SRX 600 receiver Rev A #10112
Chapter
1 - - Page 15
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A transmitter is a device that uses a series of single frequency pulses to
communicate with the SRX 600 receiver. Lotek radio transmitters operate over a
frequency range of 140 to 174 MHz. Lotek acoustic transmitters operate at either
66 or 77 kHz.
communicate with the SRX 600 receiver. Lotek radio transmitters operate over a
frequency range of 140 to 174 MHz. Lotek acoustic transmitters operate at either
66 or 77 kHz.
There are three main types of transmitters:
• 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.
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).
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.
location of a collared animal, within a kilometer or so.