Anritsu   Site Master Cable and Antenna AnalyzerS251B is the instrument of choice for transmission line/antenna installation and maintenance. It is the best way to reduce maintenance expenses and improve quality. It replaces stacks of heavy, expensive and complex test equipment. Site Master's frequency domain reflectometry technique allows it to find problems before they become catastrophic faults thereby creating a huge cost savings.Specifications: Frequency Range: 625 - 2500 MHz Frequency Accuracy (CW Mode): 75 ppm Frequency Resolution: 10 kHz Immunity to interfering RF signals up to +2 : +10 dBm, Reflection / +30 dBc Transmission SWR Range - 1.00 to 65.00 Return Loss: Range - 0 to 54 dB, Resolution - 0.01 RF Source Frequency - 625 to 2500 MHz @ 10 kHz step