Zoom S331L Sitemaster

S331L Sitemaster


The S331L is a rugged, handheld cable and antenna analyzer. Utilizing the latest advancements in technology, 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. With its large outdoor viewable 7” TFT touch screen display, intuitive GUI, and classic mode, the S331L can significantly increase a user’s efficiency in the field.

  • Return Loss
  • VSWR
  • Cable Loss
  • Smith Chart (50/75 ohm selectable)
  • 1-port Phase
  • Distance-to-Fault Return Loss
  • Distance-to-Fault VSWR
  • RF Power (50 MHz to 4 GHz)


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