Narda EF-4091 Overview
Narda EF 4091 NBM E-Field Probe 40 MHz - 40 GHz
The Narda EF 4091 NBM E-Field is a sensitive field probe for all types of high frequency applications, applicable to electric fields from 40 MHz up to 40 GHz. This frequency range covers almost the entire range of high frequency communications, right up to mobile radio and satellite links. The linearity and sensitivity of the Narda EF 4091 from Narda Safety Test Solutions ensures its suitability for checking human safety limit values in the occupational and general public environments. The probe contains three orthogonally arranged dipoles with detector diodes. The diode voltages each correspond to the RMS value of the spatial components. The isotropic measurement result is obtained by addition within the probe.
Features:
- General public and occupational field exposure
- Broad frequency range with high dynamic range
- Isotropic (non-directional) measurement
[split]
Frequency Range: 40 MHz to 40 GHz
Type of frequency response: Flat
Measurement range: 0.7 to 400 V/m (CW) - 130 nW/cm² to 42 mW/cm² (CW)
Measurement range *(cont.): 0.7 to 61.4 V/m (RMS) - 130 nW/cm² to 1 mW/cm² (RMS)
Dynamic range: 55 dB
CW damage level: 1600 V/m 700 mW/cm²
Peak damage level: (b) 1900 V/m 1 W/cm²
Sensor type: Diode based system
Directivity: Isotropic (Tri-axial)
Readout mode / spatial assessment: Combined 3-axis (RSS)
UNCERTAINTY
Flatness of frequency response (c): ±3 dB (Calibration uncertainty not included)
Linearity: (Referred to 0.2 mW/cm² (27.5 V/m)
±3 dB (1 to 2 V/m) - ±1 dB (2 to 250 V/m) - ±2 dB (250 to 400 V/m)
±3 dB (0.26 to 1 μW/cm²) - ±1 dB (1 μW/cm² to 16.5 mW/cm²) - ±2 dB (16.5 mW/cm² to 42 mW/cm²)
Isotropic response: (d) :±1.25 dB (< 10 GHz) - ±2 dB (10 GHz to 26.5 GHz) - ±2 dB typ. (> 26.5 GHz)
Temperature response: ±0.9 dB (-0.03 dB/K) @ f = 2.45 GHz
Calibration frequencies: 27.12/ 40/ 60/ 100/ 200/ 300/ 500/ 750 MHz
1/ 1.8/ 2.45/ 3/ 4/ 5/ 6/ 8.2/ 10/ 11/ 18/ 26.5/ 40 GHz
Compatibility: NBM-500 series meters
Size: 12.5" x 2.5" Ø ( 318 mm 66 mm Ø )
Weight: 3.17 oz ( 90 g )
