The S331L is a rugged, 1-port handheld cable and antenna analyzer that operates from 2 MHz to 4 GHz with a built in power meter. It replaces the current value line S331D which is part of the longest running portable cable and antenna analyzer family in history. The S331L has been optimized for field conditions, is easy to use, and has efficient sweep management capabilities. The S331L delivers an entire workday of battery operating time, the most ever offered in a handheld cable and antenna analyzer. With its large outdoor viewable 7" TFT touch screen display, new intuitive GUI, and classic mode that mimic the S331D basic measurement flow, the S331L is very easy to use, and can significantly increase a user's efficiency in the field.