Product Catalogue

Site Masterâ„¢ S311D/S312D

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Site Master™ is the perfect instrument for Land Mobile Radio and Public Safety system applications.

Anritsu’s S311D/S312D Site Master is the latest addition to the successful Site Master cable and antenna analyzer series. It builds upon Anritsu’s expertise in developing accurate, portable, rugged, and easy-to-use field instruments with a rich set of features aimed at simplifying life for field use.

The Site Master is the perfect instrument for Land Mobile Radio (LMR) and Public Safety system technicians testing the RF performance of P25 and TETRA radios in the VHF/UHF, 700 MHz and 800 MHz bands. With its 2 MHz frequency coverage, the Site Master works well for defense applications in the HF band. The S31xD is also ideal for broadcast and cellular applications.

The high performance 1600 MHz cable and antenna analyzer can be used to sweep cables and antennas at the frequency of operation using the Return Loss and VSWR measurements. The Distance-To-Fault (DTF) measurement can easily spot poor connections, contamination, damaged cables, water penetration, and bad antennas. Site Master’s Frequency Domain

Reflectometry (FDR) techniques break away from the traditional fix-after-failure maintenance process by finding small, hard to identify problems before major failures occur. The S312D combines the high performance cable and antenna analyzer with a fully functional spectrum analyzer. The –135 dBm noise floor is needed to find low level interfering signals which can interfere with LMR and SMR systems. The Interference analyzer provides helpful tools to aid in diagnosing and tracking interference. The S312D can be equipped with a cable and antenna analyzer, spectrum analyzer, interference analyzer, channel scanner, Received Signal Strength Indicator (RSSI), AM/FM demodulation, and RF power meter.


  • Cable and Antenna Analyzer (S311D/S312D)
  • Spectrum Analyzer (S312D)
  • Interference Analyzer (312D)
  • AM/FM Demodulator (S312D)
  • Transmission Measurement (S312D)
  • Channel Scanner (S312D)
  • CW Signal Generator (S312D)
  • High Accuracy Power Meter (S311D/S312D)
  • Power Meter (S311D/S312D)
  • GPS Receiver (S311D/S312D)
  • Bias Tee (S312D)
  • 2 MHz Low Frequency Option (S311D/S312D)

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