Narda A8722D Frequency Response Weighted E-field Probe ("shaped probes") The 87xx series is a test system with interchangeable probes for electric and magnetic fields. The system was designed primarily for applications in the < wireless and radar > sectors. A full range of accessories is available for setting up and qualifying facilities. All of the measuring devices have an adjustable alarm threshold. Frequency Range: 300 kHz - 50 GHz Measurement Range: 50 GHz 0.3 to 300% of standard Field: E Tier: Occupational / Controlled Standard or Guidance: FCC 1997, Japan RCR-38