The Narda EFD-9091 is a high-performance electric field probe designed for use with the FieldMan platform, delivering broadband isotropic field measurements across a wide frequency range from 100 MHz to 90 GHz. This coverage makes it ideal for testing and monitoring exposure levels from telecommunication, radar, and satellite systems. The probe offers exceptional sensitivity starting at 0.5 V/m and a wide dynamic range, supporting both CW and True RMS readings up to 400 V/m and 61.4 V/m respectively.
Built with precision and reliability in mind, the EFD-9091 features a diode-based sensor system with three-axis isotropic spatial assessment, providing accurate field intensity readings without directional bias. The built-in digital interface eliminates the need for meter calibration and includes a self-check function to ensure ongoing system integrity. Additionally, accredited multi-frequency calibration data is stored within the probe, automatically applied during measurements for consistent accuracy.
Key Features
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Isotropic (non-directional) electric field measurement
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Measures from 100 MHz up to 90 GHz
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Excellent sensitivity starting at 0.5 V/m
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Wide RMS range up to 61.4 V/m
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Flat frequency response
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No meter calibration required – digital probe interface
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Integrated ambient temperature sensors for automatic offset compensation
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Probe self-test and sensor function check
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Automatic offset correction – no zeroing required
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DAkkS-accredited calibration stored in probe
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Rugged IP54 protection rating (when probe is attached)
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Operates from -20 °C to +50 °C
