Handheld Cable and Antenna Analyzer / SiteMaster, 1 Port 2MHz-4GHz, with built-in 50MHz-4GHz Power Meter. The Anritsu S331L is a Handheld Cable and Antenna Analyzer / Sitemaster with one port and a bandwidth from 2 MHz to 4 GHz. It has a built-in InstaCal Module and a Power Meter and ist optimized for field conditions. Standard Measurements: Return loss, VSWR, cable loss, distance -to-fault return loss, distance-to-fault VSWR, RF power meter (50 MHz to 4 GHz) Features: Compact and rugged Impact, dust and splash resistant Standard built-in InstaCal module and power meter FlexCal maintains calibration with frequency changes Familiar S331D-like classic mode and S331E-like advanced mode Internally store > 1000 files with fast preview of stored traces Efficient Sweep management capabilities Industry standard *.dat format compatible with LST (Line Sweep Tools) and HHST Built-in help function (one button) 7 in. TFT touch screen display (800 x 480) Multiple USB ports Intuitive GUI (Graphical User Interface) More than 8 hours of continuous battery operation