As a result of our initial site survey we plotted the signal levels throughout the building before the installation of cell phone boosters. The image to the right demonstrates the results of our survey. The black indicates the abscence of any measureable cell phone signal. The blue indicates limited cell phone reception. This level is consistent with what was expected close to a window. Throughout the parkade level there was no signal at all.
The image to the right demonstrates the predicted and the measured signal levels throughout the building, across the same two floors, after the installation of cell phone boosters (Distributed Antenna System). Red indicates a strong cell phone signal (5 bars), and coincides with the location of the installed antennas. As can be seen there is now also strong cell phone signal throughout the underground car park. The site survey and client walk through carried out after the installation confirmed the accuracy of the prediction.