107
8.3.6 Graphical Install
To aid the installation of wireless links two graphical installation aids have been included:
• A PDA installation screen
• A larger installation screen available from the main HTTP management interface.
The design of the installation screen has been deliberately kept simple and uncluttered. An
example of the installation screen is shown in Figure 51. Both the PDA and the large format
installation screen have the same content and only differ in size. The PDA installation screen
is 232 by 220 pixels to be compatible with the average size of a PDA screen.
Wireless Link Status.
Permissible values are: Up,
Registering, Searching a nd
Acquiring
Trace of receive power over
the previous three minutes
Receive Power Bar,
instantaneous receive
power. The colour of is
green when the wireless
link status is up,
otherwise it is red
Wireless Install
Metric
Figure 51 - Installation Screen
The screen displays the receive power of the last three minutes. This will allow the installer to
slowly sweep the antenna during installation and monitor the variation in signal strength with
angular position. The screen automatically refreshes every three seconds.
The screen also displays the current state of the wireless link in two ways. First, the actual
state of the wireless link is written in the top left corner of the screen. The instantaneous
receive power bar also encodes the state of the wireless link using green to signify that the
wireless link is up and red for all other states.
For the more technically aware the installation metric is simply the instantaneous receive
power in dBm + 100.