User's Manual

Table Of Contents
Wireless Array
Installing the Wireless Array 31
greatly so the actual rates may be different depending on the specific network
deployment.
Fine Tuning Cell Sizes
Adjusting the transmit power allows you to fine tune cell sizes. There are four
standard sizes Small, Medium, Large, or Max (the default is Max). There is also
an Auto setting that automatically determines the best cell size, and a Manual
setting that allows you to choose your power settings directly.
Figure 13. Transmit Power
Auto Cell Size is an automatic, self-tuning mechanism that balances cell size
between Arrays to guarantee coverage while limiting the RF energy that could
extend beyond the organizational boundary. Auto Cell uses communication
between Arrays to dynamically set radio power so that complete coverage is
provided to all areas, yet at the minimum power level required. This helps to
minimize potential interference with neighboring networks. Additionally, Arrays
running Auto Cell automatically detect and compensate for coverage gaps caused
by system interruptions. To enable the Auto Cell Size feature, go to “RF Power &
Sensitivity” on page 316. For a complete discussion of the Auto Cell size feature,
see the Xirrus Auto Cell Application Note in the Xirrus Resource Center
.
The XN4 has a smaller range than the larger Arrays.
Large
Medium
Small