Spectrum analyzers are designed to provide accurate RF power measurements, which are converted to Received Signal Strength (RSSI) when attached to an antenna. RSSI measurements can be combined with on-screen map displays to become a very versatile solution for mapping the coverage of RF transmitters. Anritsu handheld analyzers with spectrum analysis capabilities can include Option 431, also known as Coverage Mapping. Download this application note to see how to fully operate a spectrum analyzer in accordance to GPS coverage mapping through the use of Option 431, GPS, and an external GPS antenna.