S331L – Anritsu

The S331L Site master is a Handheld Cable and Antenna Analyzer created by Anritsu. The S331L has an LED backlit keyboard and can save 1,000 files or more.

Product Description

Item #: S331L
Manufacturer: Anritsu
Series: Site Master

S331L by Anritsu is a Handheld Cable and Antenna Analyzer in the Site Master series. S331L features a Battery Life of 8 hours and a Weight of 4.4 lbs.

The Anritsu S331L Site Master is a handheld cable and antenna analyzer, which is ideal for field use, simple to operate, and has many sweep management capabilities. The Anritsu S331L is an upgraded version of previous Site Master models with more features than before. One of the perks of the S331L is its long-lasting battery, which is longer than former models. It can last as long as eight hours when it is fully charged, compared to a previous battery life of 1.5-4.5 hours. With a power-conserving feature, battery life can be extended to 10 hours. This allows contractors, wireless service providers, and installers to continue working all day without having to worry about recharging the device. Also, this model has more memory, with the ability to internally save 1,000 files or more.

The Anritsu S331L includes two different modes of operation: classic mode and advanced mode. Classic mode is simple to use and similar to the Site Master D series models. Advanced mode has more capabilities and an updated look.

The S331L Site Master has an LED backlit keyboard, so it can still be used in dark environments. This feature helps users who must work at night see which key they are pressing to complete measurements competently. The S331L also has various USB ports: two USB type A ports and one USB type mini B port. These multiple ports enable function such as: file transferring, expanding the memory, or the addition of an external keyboard or mouse. The user can even charge their phone through one of the USB ports.


Frequency Range 2 MHz to 4 GHz
Frequency Accuracy ± 5 ppm @ 23 °C ± 3 °C
Display 7.0 in. daylight viewable color LCD
Battery Life 8 hours
Weight 4.4 lbs.
RF Connector N female
Dimensions 10.0 x 7.1 x 2.4 in.
Option 98 Standard Calibration to ISO/IEC 17025:2005
Option 99 Premium Calibration to ISO/IEC 17025:2005 plus Test Data