The Anritsu Spectrum Master™ series is the de facto standard of the industry providing ultimate measurement flexibility in a package that is ruggedized for field environments and light enough for mobile applications. Get the advantages of a full-sized, fully functional analyzer in a compact, handheld unit which can go anywhere, anytime to locate, identify, record and solve communication systems problems quickly and easily with low noise, high resistance to interference and incredible measurement accuracy. Ideal for such applications as identifying sources of interference, measuring field strength of cellular and military land mobile signals, field analysis of 802.11a/b/g wireless LAN signals and measurement of RF output from circuits, devices and instruments.