Aeroflex's software for the 3500 1 GHz Hand-Held Radio Test Set supports Survey Technologies Field Test 6 Software. Now, users of the 3500 Series can improve and automate the acquisition, analysis and display of signal strength across a given terrain, as well as inside buildings. Field Test 6 has expanded the drive-test measurement concept to include indoor measurement and analysis for applications where GPS is not available. The hand-held capability of the 3500, along with the Field Test 6 software, allows users to map out their building or geographical areas and find any sections that contain a weak signal. Armed with this information users can improve critical communications within those areas.