Anritsu S331B Site Master, 25 to 3300 MHz

The S331B Site Master is a hand held SWR/RL (standing wave ratio/return loss), and Distance-To- Fault (DTF) measurement instrument that includes a built-in synthesized signal source. All models include a keypad to enter data and a liquid crystal display (LCD) to provide graphic indications of SWR or RL over the selected frequency range and selected distance. The Site Master is capable of up to 2.5 hours of continuous operation from a fully charged field-replaceable battery and can be operated from a 12.5 dc source. Built-in energy conser- vation features can be used to extend battery life over an eight-hour work day.
The Site Master is designed for measuring SWR, return loss, or cable insertion loss and lo- cating faulty RF components in antenna systems. Power monitoring is available as an op- tion. The displayed trace can be scaled or enhanced with frequency markers or a limit line. A menu option provides for an audible “beep” when the limit value is exceeded. To permit use in low-light environments, the LCD can be back lit using a front panel key.