User's Manual

FreeWave Technologies Spread Spectrum Transceiver User Manual
900 MHz and 2.4 GHz
V5.0S
14
Master Packet Repeat in Multipoint Systems with Repeaters
The Master Packet Repeat parameter must also be set in multipoint repeaters
when they are used in a multipoint system. In a multipoint system a repeater looks
like a master to a slave. Therefore, the repeater will send the packet out the
number of times corresponding to its Master Packet Repeat parameter. If this
parameter is set improperly the reliability of the overall system may be
compromised. For example, assume the master's Master Packet Repeat
parameter is set to 3, and the link between the master and repeater is robust.
Now assume that the repeater's Master Packet Repeat is set to 0, resulting in
marginal communications between the repeater and the slaves it is
communicating with. The data communications between the master and those
slaves communicating through the repeater will be marginal, because it is only as
strong as the weakest link, which in this case is the link between the repeater and
slaves.
Figure 4: Multipoint Parameters