The Environment panel allows you to
configure some of the very important project parameters that affect
the way data visualizations are computed.
Because different environments
have different characteristics in terms of signal attenuation,
diffraction, reflection, etc., you are asked to Select an
environment from the
list. You should select the environment that best describes the
site being surveyed.
For each environment, the
application recommends a Guess
range. A guess range is
the diameter of the circle for which the application predicts WLAN
characteristics with a high degree of certainty. The lower the
range, the more accurate the measurements, but the longer your
walkabout path is. The higher the range, the less accurate the
measurements, but the less time you spend performing a survey. When
you conduct a site survey and click on the map to mark your
location, TamoGraph displays your path and draws the guess range
around the route points and your path, thus giving you a visual
indication of the zone that you covered with your survey. The image
below illustrates the walkabout path and guess range zone drawn
along the path.
It is quite all right to decrease the
suggested guess range, but increasing it is not recommended for the
reasons explained above.
For passive surveys, TamoGraph can also
compute WLAN characteristics outside the guess range zone, although
such computations will have a lower degree of accuracy. Check
the Extrapolate data beyond
the guess range box to
enable such computations. Enabling this option will mean that
visualizations will cover the entire map rather than the
areas that you actually surveyed. Enabling this option is not
For predictive surveys, you can
specify the expected noise level
for your virtual environment.
There are two separate controls for the 2.4 GHz and 5 GHz bands.
The default level is -90 dBm for 2.4 GHz and -95 dBm for 5
units control can be
used to choose the preferred units (feet or meters) for displaying
distances and coordinates throughout the application.