Spread Spectrum Wireless Data Transceiver User Manual
Examples of Data Communication Links
FreeWave transceivers’ versatility allows data communication links to be established using a variety of
different configurations. This, in turn, makes it possible to extend the range of FreeWave and operate in a
number of applications.
The example below shows the most common and straightforward link, a Master communicating to a Slave
in a Point-to-Point link.
The diagram below shows how a link might be set up using a Repeater. The Repeater may be sitting on a
hilltop or other elevated structure to link the Master to the Slave. In this setup it may be desirable to use
an external omni directional antenna on the Repeater. To extend the range, Yagi antennas may be used
on either or both of the Master and Slave transceiver.
When a Repeater is used the RF speed is cut in half. The Data Port baud rate, however, may still be set
to 115200.
The example below shows a link with two Repeaters between the Master and Slave. With two Repeaters
there is clearly more flexibility in getting around obstacles and greater total range is possible. Once again,
it would be desirable to use external omni directional antennas with the Repeaters, and attaching a Yagi
to the Master and Slave to increase the range of the link.
When two Repeaters are used there is no further degradation in the RF speed of the link.
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