The Capacitive Voltage Probe (CVP) is designed for measuring asymmetrical disturbances on cables with capacitive coupling principle. It gives the opportunity to do the measuring without disconnection of the tested cable (“in-situ”) and it avoids the influence of the transmission. Main parameter of the CVP is the coupling factor, measured in a calibration system with 50 Ω impedance. The capacitive voltage probe is specified in chapter 5.2.2 and Annex G of CISPR 16-1-2.
| Parameter | Value |
|---|---|
| Frequency range | 150 kHz to 30 MHz |
| RF voltage range (in relation to a noise figure of the receiver F ≤10 dB) Sinus voltage (average, BIF = 9 kHz CISPR 16-1) Upper limit (A1, 1 dB- compression): 150 dBμV Lower limit (A3, f ≥1 MHz, noise error ≤1 dB): 26 dBμV Pulse voltage (Quasi-peak) Upper limit (A1, pulse frequency: 100 Hz): 74 dBμV |
|
| Overload indicator | for sinus and pulse voltages |
| Correction factor k1 (only valid for a cable diameter of 22 mm) |
A3: 20 dB A2: 30 dB A1: 40 dB |
| Frequency response correction factor k1 | A3: ±1.2 dB A2: ±0.8 dB A1: ±0.8 dB |
