Isotropic E-field probe - 100 kHz to 3 GHz, True RMS: WPF3 | Wavecontrol

The WPF3 is an isotropic electric field probe designed for RF field measurements from 100 kHz to 3 GHz. It is intended for professional electric field assessment in telecommunications, industrial safety, defence environments and laboratory applications.

Based on RMS diode technology, the WPF3 provides isotropic and True RMS measurement with high sensitivity from 0.2 V/m. It is compatible with SMP2, MonitEM and MapEM measurement and monitoring platforms.

Benefits

• Broad RF coverage: 100 kHz to 3 GHz for common telecom, broadcast, industrial and laboratory RF environments.
• Electric field measurement: designed for professional E-field assessment in V/m.
• Isotropic measurement: suitable when field direction may vary or is not known in advance.
• True RMS response: adapted to accurate broadband RF exposure evaluation.
• High sensitivity: measurement capability from 0.2 V/m.
• Excellent 50/60 Hz rejection: attenuation greater than 80 dB, helping reduce low-frequency interference effects.
• Accredited calibration: ISO 17025 accredited calibration with ILAC recognition.
• High-power option: WPF3-HP version available for higher CW field levels up to 1000 V/m.

Main Features

• Frequency range: 100 kHz – 3 GHz for both WPF3 and WPF3-HP.
• Sensor type: isotropic sensor based on RMS diode technology.
• Frequency response type: flat response across the specified operating range.
• Measurement range, WPF3: 0.2 – 130 V/m in CW mode and 0.2 – 20 V/m in RMS mode.
• Measurement range, WPF3-HP: 0.2 – 1000 V/m in CW mode and 0.2 – 20 V/m in RMS mode.
• Dynamic range: 52 dB for WPF3 and 74 dB for WPF3-HP.
• Sensitivity: 0.2 V/m.
• Resolution: 0.02 V/m up to 7.5 V/m, then less than 2% from 7.5 V/m.
• Frequency response: ±1.5 dB from 250 kHz to 3 GHz and -3 dB at 100 kHz.
• Linearity: ±0.5 dB from 0.5 V/m to 100 V/m.
• Isotropic deviation: ±1.2 dB at 2 GHz.
• Calibration: ISO 17025 accredited calibration, ILAC recognized.
• Recommended calibration period: 24 months.
• Temperature range: -20 °C to 50 °C.
• Temperature response: +0.1 / -1 dB, related to 20 °C.
• Dimensions: 28.4 cm x 6 cm Ø.
• Weight: 95 g.
• 50/60 Hz attenuation: greater than 80 dB.
• Compatibility: SMP2, MonitEM and MapEM.

Typical Applications

• Telecommunications: certification and audit of telecommunication services such as GSM, 3G, LTE, TDT, FM and WiFi.
• Industry: assessment of industrial processes for worker exposure protection.
• Defence: assessment of military sites and personnel exposure protection.
• Labs and R&D: RF exposure protection for R&D and laboratory personnel.

Why choose WPF3

The WPF3 is a reliable choice for RF electric field measurements when the application requires 100 kHz to 3 GHz coverage, isotropic response, True RMS measurement and high sensitivity from 0.2 V/m.

Its compatibility with SMP2, MonitEM and MapEM allows the probe to be used in both portable measurement campaigns and monitoring configurations, depending on the selected system. For applications involving higher CW field levels, the WPF3-HP extends the measurement range up to 1000 V/m while maintaining the same frequency coverage and sensor technology.