User's Manual

4
When operating as a Gateway Receiver, the device receives messages transmitted
by Miltel transmitters or messages relayed by a repeater. The receiver can also send
commands to any of the repeaters.
The Transceiver device is marketed as two models (as a Receiver or as a Repeater)
and under three different commercial trade names (Datasense Repeater 3A /
Receiver 2A, Galaxy Repeater 3A / Receiver 3A and IrriWise Repeater 3A / Receiver
2A).
The Transceiver device (both receiver and repeater) can be hooked up to a PC or to
a laptop computer for programming purposes during system setup.
1.3 Theory of Operation
The Transceiver 3A is the intermediate link in the wireless telemetry data collection
system. It is an independent unit that operates as a repeater (radio relay) or as a
gateway backhaul device (receiver).
Figure 2-1 (see below) depicts a typical installation of a Transceiver 3A unit. The
device is powered by a 12 volt power supply or by a solar powered battery.
The Transceiver 3A operates its radio receiver on a continuous basis until it receives
a message from a nearby transmitter. After capturing the transmitted data
message, it sends out an identical message which is forwarded to the Collector.
Figure 1-1: Typical Installation
(shown with optional solar panel)