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Trace and max hold
Compare the current settled spectrum with the strongest level observed at every frequency.
General RF Spectrum Analysis · Wireless Toolbox diagnostic
Sweep wide.Resolve the signal.
Touchstone-Pro turns an attached RF Explorer or RTL-SDR into a browser-operated spectrum analyzer for finding transmitters, exposing intermittent interference, and studying RF activity over time.
Included with Wireless ToolboxLaunch the edition for the connected receiver. RF Explorer provides calibrated measurements; RTL-SDR offers economical relative-level analysis.
Live spectrumSee signal level as a function of frequency
Waterfall historyCatch bursts that a current trace can miss
Peak detectionIdentify and rank prominent signals
Two receiver pathsRF Explorer or RTL-SDR
The general-purpose RF view
See more than what is transmitting right now.
A live trace shows the present. Persistence and history reveal the behavior.
Touchstone-Pro continuously sweeps a selected frequency range and aligns a settled spectrum trace with a scrolling waterfall. Max hold, density, threshold, markers, and peak detection expose different aspects of the same RF environment.
Adjust the span for a broad survey or a close inspection. With RF Explorer, retune-and-stitch scanning can cover wider ranges while high-resolution mode targets approximately 25 kHz spacing for detailed wireless-audio work.
EXPLORE THE RELATED DESKTOP PRODUCT ↗Diagnostic capabilities
Multiple ways to interrogate the same spectrum.
Each view answers a different question—from “what is strongest?” to “what only appears occasionally?” and “which frequencies remain clear?”
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Waterfall and density
Read RF activity across time or as a persistence map that highlights recurring energy.
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Threshold and peaks
Separate occupied from clear spectrum and automatically call attention to significant signals.
Field workflow
Survey broadly, then narrow the question.
Use RF Explorer for calibrated amplitudes or RTL-SDR for economical relative measurements.
Set start and stop frequencies appropriate to the device, band, or interference under study.
Apply max hold, density, threshold, SNR, or peak detection to emphasize the behavior that matters.
Place frequency markers and export a completed trace for reporting or further analysis.
The instrument view
Present activity and accumulated behavior, side by side.
The instrument can move from a classic analyzer trace to time and persistence views without changing receivers or workflows.
General RF Spectrum Analysis
Make the invisible RF environment observable.
Touchstone-Pro brings wideband spectrum analysis to the same portable appliance and browser used by the rest of the Wireless Toolbox diagnostics.