FreeWave Technologies Inc. 1521131FFF Manuale Utente
Spread Spectrum Wireless Data Transceiver User Manual
LUM0002AG Rev A
Version 7.0
49
Examples of Data Communication Links
FreeWave transceivers’ versatility allows data communication links to be established using a variety of
different configurations.
different configurations.
The example below shows the most common and straightforward link; a Master communicating to a Slave
in a Point-to-Point link.
in a Point-to-Point link.
The example below shows how a link might be set up using a Repeater. The Repeater may be located on
a hilltop or other elevated structure enhancing the link from the Master to the Slave. In this configuration,
it may be desirable to use an external Omni directional antenna at the Repeater. Yagi antennas may be
used at both the Master and Slave transceivers.
a hilltop or other elevated structure enhancing the link from the Master to the Slave. In this configuration,
it may be desirable to use an external Omni directional antenna at the Repeater. Yagi antennas may be
used at both the Master and Slave transceivers.
When a Repeater is used, the RF throughput is cut in half.
The example below shows a link with two Repeaters between the Master and Slave. With two Repeaters
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.
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 no further degradation in the RF throughput of the link is experienced.