RIGOL RIGOL NFP-3 Instructions

User's Guide RIGOL

NFP-3 Near Field Probe

Product Overview

NFP-3 is used with RIGOL DSA series spectrum analyzer for the EMI tests of electronic
products. It can be used to test the magnetic field strength and magnetic field coupling
channels on the surface of the electronic components as well as the magnetic field
environment near the electronic module so as to quickly locate the interference source.
NFP-3 includes four models (NFP-3-P1, NFP-3-P2, NFP-3-P3 and NFP-3-P4).

Measurement Connections

The connection mode of NFP-3 and spectrum analyzer is as shown in the figure below.

Spectrum Analyzer

N-BNC Adaptor

BNC-SMB RF Cable

NFP-3

Device under Test

User's Guide RIGOL

― Connect the spectrum analyzer

Connect the SMB (M) terminal of NFP-3 and the BNC (F) terminal of the N-BNC

adaptor respectively via the BNC-SMB RF cable; connect the N (M) terminal of the

N-BNC adaptor to the RF input terminal of the spectrum analyzer.

― Connect the device under test

NFP-3 is used to perform short-distance noncontact measurement on the device

under test. Pay attention to the direction of the probe during measuring.

Typical Applications

― Locate the EMI radiation interference source.

― Determine the frequency and relative strength of the spectral component of the

interference source.

Performance Specifications

Frequency

Frequency Range 30 MHz to 3 GHz

Terminal Type

Termin a l Ty p e SMB (M )

Adaptor N (M)-BNC (F)

RF Cable BNC (M)-SMB (F), 1000 mm

Terminal and Adaptor Impedance 50 Ω

General Specifications

Dimensions 260 mm × 190 mm × 30 mm (with package)

Weight 0.425 kg (with package)

Operating Temperature

Storage Temperature

0℃ to 50℃

-20℃ to 70℃

Apr. 2016

Apr. 2016

User's Guide RIGOL

User's Guide RIGOL

Model Description

NFP-3-P1

Near field probe for magnetic field measurements. The test range

is within 10 cm. It is used to locate the leakage field.

NFP-3-P2

Near field probe for magnetic field measurements. The test range

is within 3 cm. It is used to accurately test the leakage field.

Model Description

NFP-3-P3

Near field probe for magnetic field measurements. The resolution
is about 5 mm. It is used to test the electromagnetic leakage of
the cables.

NFP-3-P4

Near field probe for magnetic field measurements. The resolution
is about 2 mm. It can test the magnetic field in the vertical
direction and the electromagnetic field generated by the PCB
wiring.

Apr. 2016

Apr. 2016