A portable RF wattmeter with calibrated power measurement, Windows GUI and fast USB logging. A handheld near-field analyzer that guides your probe with live sound and vibration. Both in one PNFA.
From €1,090 excl. VAT · PNFA Monitor software included
¹ Fixed high precision mode for a known frequency; typ. ±0.4 dB at 3–4 GHz. See accuracy and range details. * In combination with PNFA Monitor for Windows. Maximum RF-level stream rate; effective rate depends on mode and setup. See recording details.
Choose the connection for the job. The instrument, display and PC software work together across both workflows.
Connect a known RF source through the 50 Ω SMA input, with external attenuation where needed. Read calibrated power in dBm or watts, then record how the level changes over time.
Attach an E-field or H-field probe and move across your design. Sound and vibration follow the RF level, helping you locate emissions without constantly looking away at a screen.
Check RF sources, compare output levels and record drift or intermittent activity. Enter the known signal frequency in Fixed high precision mode: PNFA selects the input filter and applies frequency-dependent calibration correction.
Fixed mode corrects the response at the entered frequency. Other signals within the selected broad filter band can still contribute to the reading.
See RF power kit · €1,1491 MHz–3 GHz · ±0.5 dB max.
Figures are the datasheet’s absolute RF power accuracy specification. Use a known signal frequency, the correct input path and the calibrated range. Probe coupling, cables and external attenuators contribute separately to the uncertainty of the complete setup.
Read the datasheet · PDF
Move the probe. Hear and feel the RF level change. PNFA’s combined acoustic and haptic feedback makes source localization a direct, hands-on process — with your attention on the probe position.
Start with Full band to find the strongest broad band, then select that filter to follow level changes. You can begin troubleshooting without configuring a frequency sweep, span or resolution bandwidth.
Feedback follows the live corrected level even when the display uses Average, Peak or Max Hold. Feedback sensitivity changes the indication, not RF gain or measured power.
PNFA detects RF level through a broad input filter rather than sweeping frequency points. With one band selected, there is no frequency sweep to wait for as you move the probe. Full band sequentially compares four filter paths; it reports the strongest band, not their summed power. Use a spectrum analyzer when you need individual frequencies resolved.
Choose an H-field loop or E-field probe for the area of interest.
Start with Medium sensitivity and audio, haptics or both.
Follow the level change. Keep probe spacing and orientation consistent.
A bank of four physical RF input filters helps separate broad frequency regions. Select one for a focused comparison, or let Full band identify the strongest response.
CISPR band B
Low-frequency RF within PNFA’s 1 MHz lower operating limit.
CISPR band C
Compare activity in the lower VHF region and above.
CISPR band D
Focus on the middle RF band without lower-band energy dominating.
CISPR band E
Explore the upper part of PNFA’s operating range.
Ranges are nominal, within the 1 MHz–4 GHz operating range; filter edges are not ideal cutoffs. CISPR labels indicate nominal band alignment within PNFA’s operating range. These are broad RF filters, not narrowband channels or a frequency spectrum.
Connect over USB-C to view RF levels, compare time histories and save your measurements. Fixed mode serves known-frequency RF power measurements; Filter mode compares the four broad bands.
Actual PNFA Monitor interface from the software manual. Displayed readings illustrate the interface.
* In combination with PNFA Monitor for Windows.
Keep the full received data stream in CSV for later analysis, or save processed graph data for a compact measurement record.
Up to 1 kSa/s refers to the maximum RF-level stream rate, not RF waveform sampling or screen refresh. The effective rate depends on measurement mode and setup; it is not a 1 kSa/s-per-band promise in four-band operation. Full data stream logging preserves received frames; graph processing can reduce the number of plotted or exported points.
Use band visibility, cursors, zoom and adjustable scales to compare emissions before and after a design change.
Graphs show RF level versus time. Keep streaming CSV files separately for the complete recording; a workspace retains the histories still in memory.
Key figures from PNFA Datasheet. Full specifications and operating instructions are available below.
Every PNFA instrument configuration includes the same measurement and feedback capabilities. Choose the accessories for RF power, near-field work, or both.
Match the physical attenuator to the source power and duty cycle, and keep the PNFA input within its limits.
Shop RF power kit
Move between calibrated known-source RF measurements and handheld near-field investigation with the same instrument.
Shop PNFA CompleteAll prices in EUR, excluding VAT. Based on the PNFA price list dated 10 September 2026.
Three H-field probes with 6, 12 and 21 mm sense-loop diameters, plus one E-field probe with a 4 mm sense tip. Included with the Analyzer Kit and Complete configurations.
Start with the larger H-field loop for a quick area scan, then use smaller loops to pinpoint the source.
Probe readings are power at the PNFA input, not a direct field-strength reading. Keep spacing, orientation, cabling and filter settings consistent for useful comparisons.
Available soon
Take the next step in near-field exploration with repeatable probe positioning. Contact us to learn more about upcoming PNFA robotic scanning options and availability.
Accuracy, input limits, filters and supplied configurations.
Open datasheet ↗PDFInstrument controls, filters, feedback and measurement workflows.
Open user manual ↗PDFWindows GUI, recording, graph exports and saved workspaces.
Open software manual ↗Need help choosing a setup or finding the software release? Talk to EMCgear.
Yes. PNFA measures RF power at its 50 Ω SMA input and displays dBm or watts without a PC. For a known-frequency source, select Fixed high precision mode and enter its frequency. Use the appropriate input path and calibrated range; add physical external attenuation when required.
Attach an E-field or H-field probe and follow the live RF level with sound, vibration and the OLED display. Start in Full band, then select the relevant broad band. No frequency-sweep setup is needed for this level-based search. Connect to PNFA Monitor when you want PC time graphs and recording.
No. In a selected filter band, PNFA directly follows RF level without sweeping frequency points. Full band sequentially samples four filter paths and reports the strongest result, not the sum. It does not resolve individual frequencies as a spectrum analyzer does.
No. It is the datasheet’s typical absolute RF power accuracy figure for 1 MHz–3 GHz. The maximum figure is ±0.5 dB; at 3–4 GHz the figures are ±0.4 dB typical and ±1.0 dB maximum. Use Fixed high precision with the correct known frequency in the calibrated range. Overall setup uncertainty also depends on source conditions, mismatch, cables and attenuators. Near-field probe readings additionally depend on coupling and geometry.
The maximum USB streaming rate for measured RF level values when recording data with PNFA Monitor for Windows. In Wideband mode, with all four RF filters enabled, a streaming rate of 1 kSa/s represents one complete measurement cycle across all four filter bands. Cyclic switching and measurement of all four filters are completed within this cycle time, and the resulting values for all four bands are reported accordingly.
Determine its RF power and DC content first. PNFA measures up to +20 dBm at its input; +25 dBm is the absolute maximum RF input rating, not an operating target. Use suitable physical attenuation and DC blocking where required. The 20 dB attenuator included with the RF power kit and PNFA Complete is rated 10 W peak maximum and typically 2 W long term. Entering attenuation compensation only corrects the reading and does not protect the input.
PNFA is intended for RF power measurement, source localization and comparative EMI troubleshooting. Its four broad filters do not resolve individual spectral components, and its graphs show level over time. Use frequency-resolved instruments when you need a spectrum, and the appropriate test setup for formal compliance measurements.
Choose PNFA if you already have RF accessories. Choose the RF power kit for the included 20 dB attenuator, the Analyzer Kit for the four NFPP probes, or PNFA Complete for both. All four use the same PNFA instrument and include PNFA Monitor, a USB cable, carrying case and factory calibration / test report.
PNFA brings both workflows into your hand.
