Covering the 25 MHz to 4000 MHz frequency band, the Site Master S331C is designed to accurately locate and identify RF cable feed-line and antenna system faults. This model is ideally suited for any experience level user in commissioning and maintenance of today's wireless systems infrastructures including VHF, broadcasting, paging, cellular, PCS/GSM, ISM, and WLL applications. S331C measurement capability includes precision return loss/SWR, cable loss and distance-to-fault measurements. Patented RF interference rejection enables accurate, repeatable measurements in the presence of high RF activity. Data analysis software enables assessment of system trends, problems, and performance in addition to professional report generation. An optional power monitor is available to make power measurement quickly and easily.