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Anritsu S331L Site Master

Model Number: S331L

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Anritsu S331L Site Master

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Anritsu S331L Site Master Handheld Cable & Antenna Analyzer

Always available for rent, purchase, and rent to own. Same day shipping!

The S331L, featuring Classic and Advanced measurement modes, is the highest value in a rugged, handheld cable and antenna analyzer for line sweeping. The S331L replaces the current value line S331D which is part of the longest-running portable cable and antenna analyzer family in history. 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, the most ever offered in a handheld cable and antenna analyzer. With its large outdoor viewable 7-inch 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.

The S331L is for contractors, installers, and wireless service providers, who need an instrument to reduce per site maintenance expenses. Anyone who needs to make basic cable/antenna and power measurements will benefit from the new S331L Site Master. The simple no option configuration and high-value pricing make the S331L ideal for tower contractors and can be easily provisioned by stocking distributors and rental companies alike.

For contractors who don't have time to look for nearby power sources, the S331L will last an entire workday on a single battery charge, meaning you can be a lot more productive with your day. Not only does the Site Master S331L run longer, it also has a lot more memory internally so you don't have to worry about running out of space for all of those extra measurements you just made. Your CAPEX affects your profitability and your stability. The new S331L is the best value in a handheld cable and antenna analyzer period. You can get more done with minimal negative impact on your operating expenses.

Do you need to be trained? Reserve a spot for our Sweep Fundamentals Course!

Request an RMA for Sweep calibration. Guaranteed 24-hour turnaround!


Test Standards
  •  AT&T
  •   Sprint
  •   Sweep Testing
  •   T-Mobile
  •   Verizon Testing

Cable & Antenna Analyzer

  • Frequency Range: 2 MHz to 4 GHz
  • Frequency Accuracy: ≤ ± 5 ppm @ 25 °C
  • Frequency Resolution: 1 kHz
  • Return Loss: ≤ 1.50 ms/data point, RF immunity low, typical
  • Distance-to-Fault: ≤ 1.75 ms/data point, RF immunity low, typical
  • Interference Immunity On-Channel: +17 dBm outside calibrated sweep rang
  • Interference Immunity On-Frequency: +13 dBm within calibrated sweep range

Internal Power Meter

  • Frequency Range 50 MHz to 4 GHz
  • Display Range –100 dBm to +100 dBm
  • Measurement Range –33 dBm to +20 dBm
  • Offset Range Max ± 100 dB, user settable value


  • Return Loss
  • VSWR
  • Cable Loss
  • Distance-to-Fault RL
  • Distance-to-Fault VSWR
  • RF Power

General Specifications

  • Internal Trace Storage: > 1000 files
  • External Trace Storage: Limited by size of USB Flash drive
  • Dimensions: 250 x 177 x 61 mm, (10.0 x 7.1 x 2.4 in)
  • Weight: < 2.0 kg (4.4 lbs), including battery
  • Operating Temperature: –10 °C to +55 °C
  • Connectivity: (2) USB 2.0 Type A, Interface: Type mini-B, Connect to PC for data transfer
  • Display: TFT Resistive Touch Screen, 7.0” daylight viewable color LCD, 800 x 480 resolution
  • Battery: Li-Ion > 8.0 Hours typical (70 % brightness setting, continuous usage)
Standard Accessories Included
  • Handheld Instruments Documentation Disc
  • Anritsu Software Tool Box for Handheld RF Instruments Disc
  • Soft Carrying Case
  • Stylus with Coiled Tether
  • Torque Multiplier N(m)
  • AC-DC Adapter
  • Automotive Power Adapter, 12VDC, 60W
  • USB A/5-pin mini-B Cable, 305cm (120in)
  • Standard Three-Year Warranty for new purchase and one year warranty for refurbished S331L (battery one-year warranty)
  • Fresh Certificate of Calibration
MSRP $4,800.00


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