FreqCheck™

FreqCheck™ places a defense-grade frequency and acoustic structural resonance analyzer directly onto iOS architecture. By fundamentally shifting digital signal processing from heavy, legacy external DAQ hardware to edge-computed Apple silicon, FreqCheck delivers pristine, mathematical extraction of infrasonic and low-frequency telemetry in real time.

Observe the video architecture above. The interface remains locked at true zero when idle, demonstrating absolute resistance to spectral leakage or algorithmic artifacting. Upon receiving a certified external frequency, the IND CORE™ engine instantly calculates dynamic FFT bin allocations, locking onto the mechanical displacement with extreme systematic precision.

The FreqCheck platform natively interfaces with top-tier industrial instrumentation environments. By bypassing standard mobile audio constraints, the DSP engine accepts calibrated external analog telemetry filtered through precision hardware setups—such as premium external data acquisition (DAQ) modules like the RogaDAQ via direct DC-coupled line-in inputs. Furthermore, the platform accommodates advanced class-compliant digital USB architecture—including pure digital options like the ROGA iSV1611 USB microphone—which handle pre-polarization and digitize signals internally. Because these wands stream a pre-converted digital data packet over USB, they cleanly bypass standard hardware filters completely without requiring any external DC-coupled interfaces on the mobile unit.

To support deployment teams, metrologists, and researchers in the field, FreqCheck features the integrated **Nyquist Forum** portal. More than just a discussion community, this network serves as an elite collaborative environment where field personnel log verification data, map environmental anomalies, and share cryptographically signed reports. Operating natively within this ecosystem is **Nyquist**, an integrated automated intelligence assistant designed specifically to guide users through complex signal profiles, analyze FFT bin centers, confirm uncertainty margins, and streamline compliance workflow documentation. It provides real-time oversight to ensure every field execution aligns with the highest international standard of metrological authority.

Every field measurement generated by FreqCheck is mathematically sealed. Real-time capture telemetry is anchored to the exact hardware signature of the deploying iOS device and instantly bound by a SHA-256 cryptographic hash. The resulting PDF documentation creates a legally defensible, tamper-evident audit trail suitable for FCC Part 90 verification, structural compliance reporting, and enterprise liability defense.

FreqCheck does not estimate; it verifies. The underlying DSP architecture is tested and certified against exact, NIST-traceable SI unit benchmarks.

• ISO/IEC 17025:2017 Calibration - Independently verified to government metrology benchmarks.
• NIST Traceability - Systematic algorithmic offsets publicly documented and proven.
• Zero-Knowledge Edge Processing - 100% local signal computation ensuring absolute corporate data privacy.

Establish The Standard.