Information on actual cell coverage in mobile networks is very valuable. It provides authorities with more precise information on the whereabouts of a cell phone. Typically such information is provided by the mobile operators using information from their Radio Planning System. However, this is often a theoretical model rather than the actual coverage. Actual field measurements provide a more accurate and complete source of information. Such measurements can be done through so-called drive tests that cover various areas or they can be focused on a specific area using a static device. The Group 2000 LIMA Cell Monitor is a low-cost, yet rich-featured device for carrying out such measurements.