Website capabilities and field reports
Browser checks and survey records differ from native Android.
The website/PWA checks exposed browser capabilities and offers permission-driven Bluetooth selection, NFC or approximate location where supported. It cannot silently enumerate every nearby device or turn a phone into a laboratory spectrum analyzer.
WebUSB reception requires a supported browser, compatible receiver and explicit permission. Android native uses USB Host directly. Browser compatibility checks are not proof that a physical receiver works.
The PWA stores report observations, survey sessions, expected emitters and baseline comparisons in browser storage. Save an audit or observation to the report, label the session and export its JSON/CSV when needed.
Import only a compatible report. Imported values are validated and merged with duplicate handling. A native CSV is not a PWA JSON report, and a browser session does not synchronize with the native station or device libraries.