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System Information
On the bottom of the access point list is a line of data that rep-
resents statistics relating to the overall frame error rate.
This line shows the number of good frames, the number of bad
frames, and the number of aborted frames. The frame error
rate is calculated and displayed as well.
MAC Locator (Geiger Mode)
When a single MAC address is selected, the 'Geiger screen'
appears. This screen has individual MAC address information
as well as a visual and audio representation of proximity to
the access point.
As the signal from the access point becomes stronger, the
audio effect of a submarine ping becomes more frequent. The
visual effect of colored circles above each of the twin antennas
becomes larger as the signal increases. This mode is even
more useful when coupled with a directional antenna that
would allow the user to "home" in on the transmitted signal
more efficiently.
The information provided on the Geiger screen includes the
MAC address and the SSID, as well as the channel on which
the access point is transmitting. It also shows when the last
packet was received. The frequency in MHz is shown, the bea-
con interval period is shown, and the DTIM period.
Finally, the RSSI level is also displayed as a numeric value
in dBm.
Real-Time Clock and Markers
It is noted that the blue bar on the AP list screen and other
screens shows the Ipaq date and time as provided by the oper-
ating system. This date and time is used for marking logged
records with a reference point in time.
There is also a marker number. When the INC button is
pressed on this bar, the marker number will increment. This
is also used in log files for a reference point to interesting data
collection anomalies.
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