User's Manual

FreeWave Technologies Spread Spectrum Transceiver User Manual
900 MHz and 2.4 GHz
V5.0S
52
Establishing Data Communication Links
FreeWave's 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 get around obstacles.
Diagram (A) shows the most common and straightforward link, a master
communicating to a slave in a dedicated link.
Master
Slave
(A)
Diagram (B) depicts 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 omnidirectional
antenna on the repeater; to extend the range Yagi antennas could be used on
either or both of the master and slave.
When a repeater is used the RF speed is cut in half, making 115 KBaud
uncompressed throughput unachievable. The baud rate, however, may still be
set at 115200.
Repeater
Slave
Master
(B)