Original Japan optical spectrum analyzer Anritsu S331L, upgraded from Anritsu S332D site master

Rugged, dust and splash resistant, reliable, lightweight and portable
Site Master S331L is rugged, dust and splash resistant, reliable, field proven and always ready, even if you’re not. At under 2.0kg (4.4lbs) including battery, it’s effortless to carry whether you are on level ground, climbing a large tower, or heading through a roof hatch, your Site Master easily goes along with you.

Beginning of a traditional workday
With the battery fully charged, you’re ready for a full workday of measurements. This is the longest lasting Site Master operation time we’ve ever offered in a handheld cable and antenna analyzer. You won’t need to look for outlets and drag power supplies with you from site to site anymore. Now you can focus on what matters, making measurements and getting the job completed.

Starting out fully charged at 9:00 am

8 hours later, still running and still measuring
After 8 continuous hours of battery operation, the Site Master S331L is still measuring. We understand that 8 continuous hours is an unlikely scenario, but we are proud of the S331L’s extended battery life and feel it deserves to be recognized.
The S331L also has intelligent power saving features to extend the operating time further, providing as much as 10 hours of operation.
Features like sleep mode with instant on, handy for travelling between sites, and auto-display brightness that will reduce the screen backlight automatically if the instrument has not been accessed for some time. One touch of the screen, keypad, or twiddle-knob will automatically restore brightness levels.

8 hours later, still running and still measuring
After 8 continuous hours of battery operation, the Site Master S331L is still measuring. We understand that 8 continuous hours is an unlikely scenario, but we are proud of the S331L’s extended battery life and feel it deserves to be recognized.
The S331L also has intelligent power saving features to extend the operating time further, providing as much as 10 hours of operation.
Features like sleep mode with instant on, handy for travelling between sites, and auto-display brightness that will reduce the screen backlight automatically if the instrument has not been accessed for some time. One touch of the screen, keypad, or twiddle-knob will automatically restore brightness levels.

All day on battery and still running at 5 pm

Markers & Limits
Using the stylus pen (provided) or fingers, users can drag or place markers and limits anywhere on the measurement screen.
Values can also be entered with number keys, or by turning the rotary knob. Several easy and convenient ways to place markers
and limits where you want them, or use the auto search max/min peak functions if you prefer.

Dragging markers and limits with fingers is really easy and convenient.

Convenient Shortcuts
User defined shortcuts can be created for one-button access to commonly used functions. (Advanced Mode only)

Internal Power Meter
The Site Master S331L includes a convenient, easy to use, built in power meter.
Setting the transmitter output power of a base station properly is critical to the overall operation of wireless networks. A very small change in power levels can create a large change in actual coverage area, resulting in dropped calls and low data rates.