Changelog

[0.1.76] - 2026-09-06

Added

  • Added ESA WorldCover as a curated terrain cover and clutter example source in the Topographic Scene node.
  • The isometric map now shows recognizable 3D models for every entity icon, with matching color accents. Moving vehicles face along their path and use their configured direction when stationary.
  • Water, vegetation, and other land-cover palette colors now appear in both top-down and isometric terrain views, with a class-color legend. Water follows terrain elevations, including elevated and below-sea-level bodies of water; uncovered areas retain terrain colors.

Changed

  • Grouped external topography, land-cover, and building data source links into a collapsible section within the Topographic Scene node to keep the node compact.
  • Repositioned the version number badge on the Help & Support page to the top right of the view, keeping the main page title cleanly centered.
  • Isometric models are four times larger for easier inspection. They stay readable from far away, grow when zoomed in, and scale with the Object Size slider.
  • Isometric propagation rays now show subtle moving gaps that follow the direction of travel through reflections. Reduced-motion preferences keep rays stationary.
  • Land-cover legends now have per-class visibility checkboxes shared between top-down and isometric views. Only water is shown by default; hidden classes retain terrain elevation colors.
  • Renamed Sionna Scene Source and 3D Sionna Channel to Topographic Scene and 3D Terrain Channel. Terrain, building, and land-cover inputs are now visible directly, with specialist settings under Advanced.
  • Clarified that Local Topography works without Sionna and that endpoint altitude uses mean sea level, with height above ground available on the map.

Fixed

  • Added the missing Car map icon and its 3D model in isometric view, with entity colors and motion heading support.
  • Terrain no longer transmits Sionna rays when building penetration is enabled.
  • Isometric terrain shows finer elevation detail with height coloring, making hills and valleys easier to see.
  • Switching to Isometric keeps your map location and zoom. Ray updates preserve your camera, and returning to Top-down restores its previous view.
  • Land-cover controls now appear only in the sidebar below the DEM elevation legend, without a duplicate overlay in the isometric view.
  • Large land-cover files, including full ESA WorldCover tiles, now load for desktop terrain previews without manual cropping. Water appears where data overlaps, with terrain colors retained elsewhere and clearer warnings for incorrect land-cover selections.
  • Resolved an issue in the bundled Pulsed LFM Range–Doppler example project where invalid parameter definitions blocked graph execution.
  • Fixed 3D radar sensor discovery during desktop file-backed generation and restored range-Doppler analysis result delivery.
  • Corrected receiver height initialization in the Coverage Analysis drawer when evaluating AMSL altitude slices.
  • Prevented warning floods in the 3D terrain preview by silencing repetitive warnings for buildings with interior courtyard holes.
  • Sionna runtime installation now authorizes catalog access with the signed-in user's credential, waits for the desktop token handoff, and retries catalog checks that failed before authentication completed.
  • Support bundles now include sanitized diagnostics for optional runtime catalog and installation failures, including the capability, error code, HTTP status, and whether desktop credentials were available.
  • Fixed terrain ray tracing in packaged desktop builds when using the optional Sionna RT runtime.
  • Fixed portable terrain-project export and reopening in packaged desktop apps.

Removed

  • Removed the repetitive exact-building cache warning banner in the isometric Map view when viewing large areas.

[0.1.75] - 2026-09-04

Added

  • Contact requests now start by safely sending your name and email, then offer an optional guided questionnaire that saves as you go and helps RFix tailor demos, evaluations, and technical conversations.
  • Added visible version number designations to the Help & Support page and the macOS native Help menu, making the active build version easy to verify across online and offline workflows.
  • Inspect Sionna terrain, solver-accurate streamed building shapes, endpoints, and full 3D ray paths in a new full-canvas isometric Map view with orbit, zoom, reset, vertical-scale, and building-opacity controls.
  • Hybrid AOI maps can use a categorical land-cover GeoTIFF to display configured rivers and water bodies in blue.
  • Added a top-right elevation warning on the map that alerts users when one or more sensors or emitters are located below ground level.
  • Hovering over building footprints in Sionna maps now displays building height alongside terrain elevation in the cursor readout.

Changed

  • Map height controls now default to AGL so terrain-relative placement and below-ground mistakes are easier to identify.
  • Made coverage overlays more transparent so terrain and building context remain easier to see in exported PNG maps.
  • The Map tab and Hybrid AOI node now show backend startup, scene-cache, compilation, and terrain-loading progress until the selected scene is ready.
  • Desktop startup and scene preparation are more responsive by deferring scientific-library warmup until idle and allowing safe status and cancellation requests to run alongside longer operations.
  • Prebuilt Sionna scenes now use a compact node control and a visual scene picker with clearer download, installed, and in-use states.
  • The included Sionna examples now provide high-resolution mountain terrain and a varied mixed-use urban district, with thumbnails rendered from the actual terrain and buildings.
  • Refined terrain DEM warnings to eliminate false-alarm alerts during standard working grid downsampling, and improved missing elevation reporting to show the affected area percentage and fill elevation when nodata cells exceed 0.5%.

Fixed

  • Coverage-area resize handles on the map can now be dragged in the desktop app.
  • Coverage analysis now keeps the chosen emitters selected after a run and provides a select-all checkbox with a partial-selection indicator.
  • Terrain-aware coverage now follows the ground by default, clearly marks invalid altitude slices, and makes the overlay opacity control accurate.
  • Restored the compiled ITU-R P.1812 and P.528 propagation engines in packaged desktop runtimes.
  • Hybrid coverage now admits a multi-cell Sionna zone for flat-terrain transmitter and receiver surfaces at the same height when specular terrain reflection can reach them, avoiding an artificial one-cell model seam.
  • Interactive Windows development builds now open the normal Save dialog for exports while retaining automation support.
  • Made the Map overview show terrain, active coverage, readable entity markers, and a stable draggable viewport instead of appearing empty or rescaling while panning.
  • Fixed Map entity and waypoint coordinate table cells to accept decimal points and commas across keyboard layouts, allowing precise fractional values instead of restricting input to whole numbers.
  • Kept Beta, Dev, and Paid badges inside node cards when sidebar labels are long.
  • Fixed desktop P.1812 path-profile generation failing when endpoint coordinates are omitted and midpoint coordinates are used.
  • Prevented P25 Phase 1 and P25 Phase 2 generation from appearing to hang at high sampling rates.
  • Fixed homepage and navigation links to open their intended public pages and product sections.
  • Made the radar cross-section library fill its workspace, with independently scrollable library and preview panes and a full-width 3D response view.
  • Reduced RFSim coverage-map markers, legends, and building outlines so annotations obscure less of the terrain and predicted coverage area.
  • Fixed low-band Sionna runs with custom terrain or building materials being rejected by an unused built-in material placeholder.
  • Sionna-required projects now report the unsupported macOS runtime directly instead of failing while querying the Windows runtime-pack catalog.
  • Portable Sionna project acceptance now compiles packaged building geometry together with terrain instead of validating a terrain-only scene.
  • Sionna scene downloads now show a clear sign-in prompt instead of exposing an internal desktop communication error.
  • Large urban Sionna terrain previews now open quickly with a compact building overview, then refine into crisp building detail as you zoom and pan.
  • Downloaded Sionna scenes no longer ask you to locate terrain files that are already installed in RFIX-managed storage.
  • Graph generation now accepts downloaded Sionna scenes with their catalog identity metadata attached.

[0.1.73] - 2026-08-31

Added

  • Authorized LocalAPI customers can download their company’s current license file from the same page as the offline packages.
  • Added run-scoped custom Sionna material classes for RFSim Coverage and RFix Desktop coverage, including explicit terrain selection, built-in material overrides, and validity-checked operation from 300 MHz.
  • Added a LocalAPI Docker entry to the profile Downloads section for accounts with LocalAPI download access.
  • The spectrogram now warns when the visible time range contains fewer samples than the configured FFT size.
  • Analog PMR generation can read WAV audio from authorized read-only input directories in the Local API bundle, while desktop generation now uses its managed audio cache instead of sending large clips inline.

Fixed

  • Company documents now preserve the intended PDF colors, including presentation gradients that previously appeared pink.
  • Corrected the GPS full-channel phase-noise profile and prevented saved measurement crosshairs from appearing over newly loaded projects.
  • LocalAPI Docker documentation now serves its machine-readable AsyncAPI specification directly and keeps the documented method list synchronized with the running API.
  • Restored authorized Local API Docker downloads when the download service does not have separate Firestore service-account credentials.
  • Local API JSON-RPC requests larger than 64 KiB no longer disconnect before reaching the documented 64 MiB frame limit, and oversized frames now receive a structured error.
  • Gaussian Noise blocks with omitted I/Q mean settings now default to effectively zero DC instead of adding full-scale positive offsets that clip generated IQ.
  • Auto-generated annotations now start at the true signal time when a scan block uses a nonzero phase offset.
  • Kept the 3D radar emitter and sensor available in AI-assisted project editing and public node-library totals.

[0.1.72] - 2026-08-26

Added

  • Added a guided desktop 5G NR adaptive-cell setup with three UEs, selectable proportional-fair, round-robin, and max-CQI scheduling, independent HARQ feedback, and per-UE fairness, throughput, queue, CQI, and MCS analysis.
  • Desktop coverage analysis can now render ITU-R P.528-5 aeronautical altitude slices, including line-of-sight, diffraction, and troposcatter mechanism maps and export artifacts.
  • RFSim Coverage can now render requested pass/fail grids as red/green heatmap and terrain-overlay PNG artifacts.
  • RFSim Coverage point and heatmap requests can select an analytical propagation model for each emitter and apply explicit transmitter and receiver feeder losses.
  • Point threshold results now report passed, failed, or indeterminate status with the assumptions and evidence needed to interpret interference decisions.

Changed

  • Paid and desktop-only blocks now remain visible in the node picker when otherwise available, with unavailable blocks grayed out and explained on hover.
  • Renamed the customer-facing coverage product to RFSim Coverage Engine and refreshed its documentation with RFix branding.
  • RFSim Coverage now keeps detailed deployment capabilities behind API authentication and provides a separate, limited feature guide for approved prospective clients, including safe example inputs and results.

Fixed

  • Kept spectrogram annotations within the generated recording, skipped empty annotation regions, and preserved project annotations when saving and loading projects.
  • Made the mobile website menu compact and scrollable, and fixed menu links that could open blank or incomplete pages.
  • Hexadecimal communication payloads now generate the same signal whether their bytes are written on one line or visually split across spaces, tabs, or multiple lines.
  • Fixed missing comparison and minus symbols in RFSim Coverage image legends.
  • Sionna and hybrid coverage requests can now provide explicit terrain electrical properties for carrier frequencies outside the selected ITU terrain material's validated range, and the custom ground is installed before the solver evaluates the low-band carrier.
  • RFSim Coverage PNG maps now use readable legends, scale labels, and emitter labels, with balanced sizing on square and panoramic exports and on Linux deployments where scalable system fonts are unavailable. Plotted emitter markers remain compact so they do not obscure prediction cells or overpower point-of-view annotations, and scale labels remain clear of the bar and its endpoint ticks. PNG requests can also select a physically correct one-mile scale bar while kilometer scale bars remain the default.
  • Automatic RFSim Coverage scene imports can again include current Overture Maps building data.
  • Environmental comparison images now load correctly in the RFSim Coverage prospect guide.
  • RFSim Coverage no longer labels spectrally unevaluated paths as fast-terrain predictions or returns extreme placeholder ratios when the required emitter group is absent.
  • Coverage summaries now distinguish blocked line of sight from spectrally excluded cells.
  • Kept long, sample-aligned staggered pulse trains running through the full requested duration, including overlapping pulses at chunk boundaries, instead of dropping pulses because of timing drift or chunk splits.

[0.1.69] - 2026-08-21

Added

  • Added a private company document library with Google sign-in, shareable PDF links, and a built-in viewer for customer and partner materials.
  • Added shareable RFix team contact pages with downloadable contacts and scannable business-card images.
  • Added desktop beta nodes for reusable 3D platform motion, moving radar targets, and coherent direct monostatic or bistatic radar returns with constant or tabulated RCS and optional two-leg weather attenuation.
  • Added MCP capability discovery plus scene layer and structure management tools, including GNSS generation coverage and request examples for every supported workflow.

Changed

  • Instrument measurement polling now stops automatically after 60 minutes to avoid accidentally leaving hardware queries running indefinitely.
  • Spectrogram dynamic range now stays fixed by default while signals generate or the view changes. An optional remembered Auto mode follows visible data, and dragging a range handle switches back to manual control—even during generation.
  • The spectrogram status now shows the visible frequency range alongside its bandwidth, including the configured display center frequency.

Fixed

  • Invalid Local Topography carrier settings are now reported as configuration problems instead of unexpected processing failures.
  • Prevented the spectrogram from attempting signal generation when the Nodes graph is empty.
  • Fixed the desktop “What's New” dialog not appearing after updates in packaged macOS installations.
  • Restored the horizontal margin around ray-status text in the map options menu.
  • Made multi-antenna NR channel output sample-identical regardless of how generation is divided into chunks.
  • Fixed P25 Phase 2 H-CPM Keysight reference exports failing on interslot fill symbols.
  • RFSim Coverage local generation and scene-import queues now recover from brief Windows manifest-file locks without leaving accepted jobs indefinitely queued.
  • Active MCP run deletion now requests safe cancellation, and hosted MCP uploads reject local paths and unsafe or oversized URLs.
  • Updated the public documentation and machine-readable examples so agents can reliably discover, submit, poll, cancel, and retrieve RFSim Coverage work.
  • Spectrogram time and frequency coordinates now follow the cursor in every tool, including over large annotations; annotations stay visible without blocking zoom or pan interactions.
  • Restored the login and sign-up forms immediately after a desktop Google sign-in window is closed without completing authentication.
  • Fixed Windows desktop projects occasionally asking users to locate unchanged Sionna terrain and building files again after restarting RFix.

[0.1.68] - 2026-08-13

Added

  • RFSim Coverage deployments can now allow explicitly configured browser origins for authenticated API requests, including controlled local-file demonstrations.
  • Spectrograms can display frequencies around a project center frequency with MHz as the convenient default unit, carry that center into SigMF exports, and adopt an unambiguous center automatically from imported SigMF metadata.

Changed

  • Reduced idle CPU and GPU use after signal generation and while Full-Wave 3D views are stationary.
  • Closing the final RFix window on macOS now quits the app and releases its background resources.
  • SigMF annotation metadata export now uses clear recording type, data format, and endianness controls, remembers the selected format, and adopts it from a SigMF file imported as the graph's sole input.

Fixed

  • Restored the desktop “What's New” dialog after updates, including while session checks are still loading, and ensured packaged release notes are included.
  • Disabled the map's Show rays option when the Sionna RT runtime is unavailable.
  • Scene uploads can now safely reprocess GeoTIFFs that already contain RFSim terrain provenance tags.
  • Local Topography now flags carrier frequencies outside its supported 30 MHz to 6 GHz range directly in the Sionna channel node.
  • Zero-frequency CW, pulse, and complex-mixer signals now remain at true baseband, generated IQ retains full floating-point precision, and time-domain graphs no longer magnify watermark-level variation or misalign their left axes, including while zoomed.

[0.1.67] - 2026-08-11

Added

  • RFSim Coverage can now calculate ITU-R P.617-6 trans-horizon loss, expose its aperture-to-medium and equation-level loss diagnostics, apply P.841 worst-month statistics, report P.526 diffraction diagnostics, and provide space, frequency, and angle diversity planning for point inspections and opt-in heatmap artifacts.

[0.1.66] - 2026-08-11

Added

  • RFSim Coverage can now calculate ITU-R P.617-6 trans-horizon loss, P.841 worst-month statistics, P.526 diffraction diagnostics, and space, frequency, and angle diversity planning for point inspections and opt-in heatmap artifacts.

Fixed

  • Restored generation for legacy projects containing TETRA V+D blocks saved with the retired default waveform profile.
  • Clarified P.452 and P.1812 fallback warnings when licensed refractivity maps are unavailable, including how to supply manual Delta-N and N0 values.

[0.1.62] - 2026-08-11

Changed

  • Removed the misleading subscription-management action from Pro user profiles.

Fixed

  • Generation errors now suggest retrying only when retrying can help, and jump directly to support diagnostics before reloading so current logs remain available for the support bundle.
  • Corrected automatic annotation frequency bounds for FSK signals that use asymmetric or one-sided frequency shifts.
  • Restored Windows desktop release publishing for signed Sionna beta runtime packs.

[0.1.61] - 2026-08-10

Fixed

  • Prevented public pages from flashing or collapsing while the interactive site loads.

[0.1.60] - 2026-08-10

Added

  • Added the paid Sionna RT beta for Windows NVIDIA desktops, with authenticated online installation, signed offline runtime packs, hardware eligibility checks, and fallback guidance for unsupported systems.
  • Added a separate NVIDIA Local API image and offline package with startup GPU validation, read-only scene mounting, and runtime capability discovery.

Fixed

  • Signed-in web users now open the node workspace directly from the homepage, while login and workspace loading no longer flash the public page.
  • Fixed imported SigMF annotations sometimes disappearing while a later reload incorrectly reported them as duplicates.

[0.1.59] - 2026-08-09

Added

  • Added one-time service announcements that can provide important notices in the desktop and web apps.

Fixed

  • Fixed macOS desktop update checks after notarized installation and added a manual download recovery action when native updates are unavailable.
  • Fixed browser input-file imports that could appear loaded even when local sample storage failed to commit.
  • Fixed spectrogram and time-domain measurements snapping back when earlier measurements were hidden or a crosshair axis was disabled.

[0.1.58] - 2026-08-09

Added

  • FMCW nodes can now use custom time-based expressions to combine one-cycle, multi-cycle, and non-periodic frequency controls measured directly in hertz.
  • Project loading now warns before opening FMCW custom expressions from an untrusted file.
  • RFix now separates user-correctable generation problems from unexpected failures, reports unexpected app crashes with a support incident ID, and offers clearer retry, reload, and diagnostics guidance.
  • Added protected, agent-friendly Markdown endpoints for the RFSim Coverage documentation index and complete documentation.
  • RFSim Coverage now offers an explicit P.525 plus ITU-R P.526-16 complete Delta-Bullington model for deterministic terrain diffraction, with configurable effective Earth radius and ground surface properties.
  • RFSim Coverage can now build reusable terrain scenes from WGS84 bounds or a center and radius, using USGS 3DEP in fully covered U.S. areas and global Mapzen terrain as a fallback.
  • Scene imports can optionally add Overture Maps buildings with disclosed height estimates, full data provenance, REST and MCP job controls, and attribution on derived results.
  • RFSim Coverage can now calculate Sionna rain loss over complete ray paths, automatically choose the efficient coupling method from the expected effect, and export emitter-specific rain-attenuation maps with optional H3 value labels.
  • RFSim scene uploads now retain vertical-datum, normalization, integrity, and terrain-quality provenance, with optional P.1511-3 EGM2008 normalization for ellipsoidal elevation data and separate input-quality reporting on runs.

Changed

  • Signed and notarized macOS releases now download verified updates automatically and install them when RFix exits.
  • RFSim Coverage now serves its complete documentation site behind an authenticated browser login, with live Swagger available separately for authorized users.
  • Sionna heatmaps retain the efficient radio-map solver by default and produce dry and rain-adjusted power from the same trace when pathwise rain is significant.
  • Spectrogram color thresholds now remain stable while zooming and panning, with a new Fit to View control for explicitly adjusting contrast to the visible region.

Fixed

  • Fixed intermittent desktop signal-file imports when replacing or reusing an Input IQ node, and kept the import dialog open with a useful error when loading fails.
  • Replaced stale automatically generated spectrogram annotations on each generation while preserving manual annotations. Generated SigMF annotations now consistently use `core:generator: "RFix"` and `rfix:auto_generated: true`.
  • Kept building outlines behind heatmap value labels, legends, and distance scales so map annotations remain readable.
  • RFSim Coverage can now fetch live weather from Open-Meteo's keyless evaluation API; subscribed deployments can still select the customer endpoint and provide its API key.
  • Corrected GNSS receiver and interferer geometry to convert mean-sea-level heights to WGS84 ellipsoid heights when the qualified EGM2008 terrain-reference pack is installed.
  • Sionna ray previews and signal generation now install or validate the required runtime, prepare full Hybrid AOI scenes automatically, and report actionable setup errors instead of silently showing no paths. Compiled scene caching is also bounded to prevent stale bundles from growing without limit.
  • RFix now remembers access to user-selected Sionna terrain files and folders across desktop restarts.

[0.1.57] - 2026-07-30

Added

  • A BLE Connection node can now generate followed LE 1M central/peripheral data-channel exchanges with CSA #1 or CSA #2 hopping, automatic sequence acknowledgements, and packet-level timeline annotations.
  • Added BLE 2M and Coded PHY support, long chained extended advertising,
  • RF coverage studies can now combine resolution-aware local Sionna ray tracing with an analytical propagation model across larger regions, including smooth transitions, bounded per-emitter work, cropped scenes, and zero-path quality checks.
  • RF coverage heatmaps and point inspections now support generic fixed-snapshot satellite emitters, geostationary positions, antenna footprints, and P.618 Earth-space downlink attenuation.
  • GLONASS L1 C/A can now emit one separately tuned, DC-centered IQ channel per physical FDMA channel, with channel selection in analysis views and per-lane RF frequencies in SigMF Collection exports. The existing summed RF composite remains the default.
  • GNSS denial runs can optionally color cells by modeled denial cause and export elevation-visible counts, clear-signal counts, fourth-satellite tracking margin, interference noise rise, and bounded per-satellite diagnostics.
  • Added industry scenario pages.
  • Added a crawler-focused site summary and a richer social sharing preview.
  • RFSim Coverage can now resolve authenticated current weather into replayable atmospheric inputs for heatmaps, point inspections, relative studies, Monte Carlo runs, and GNSS analysis.
  • Hybrid AOI building GeoJSON can now provide per-building radio materials, wall thickness, and diffuse-scattering properties for native Sionna ray tracing.
  • Added opt-in P.452 fallback and total-power anchoring for static Sionna RT
  • Wi-Fi 802.11a/g nodes can now import Raw 802.11 and Radiotap PCAP or PCAPNG captures as portable Raw MPDU replay schedules, with timing, rate, channel, and FCS controls.

Changed

  • BLE nodes now generate standards-valid LE 1M legacy advertising packets on channels 37–39, including Bluetooth CRC, mandatory channel whitening, strict PDU validation, and a structured packet builder with raw-hex access.
  • BLE advertisers can generate repeatable event trains with configurable intervals, seeded standard advertising delay or exact laboratory timing, and packet-level timeline annotations.
  • BLE connection signals can now select separate central and peripheral PHYs.
  • Improved Sionna map previews with directional color waves, clearer propagation paths, distinct interaction symbols, representative grouping of overlapping rays, a persistent calculation indicator, and control over how many paths are shown.
  • Coverage heatmaps, terrain images, and overlays now show uploaded building footprints by default so obstructions affecting propagation remain visible.
  • GLONASS broadcast simulation now uses absolute UTC to choose multi-day RINEX records, takes blank FDMA channel values from RINEX, rejects unhealthy or stale records during automatic selection, and transmits a complete navigation superframe with derived almanac data.
  • GNSS interferers now support the same directional antenna patterns, orientation, polarization, and field-of-view annotations as other transmitters.
  • Public pages now load substantially less code and smaller images, use consistent canonical URLs, and return a real not-found page for unknown addresses.
  • The homepage now uses softer section snapping without trapping continued wheel input or shifting as deferred images load.
  • The public navigation now gains a subtle translucent background and lower-edge fade over scrolled content.
  • The About page now focuses on RFix's company mission without individual profile cards.
  • Already signed-in users who open the login or signup page are now taken directly to the workspace.
  • MCP information and desktop setup steps now appear alongside the other capabilities on the Product page.
  • Public product information now clearly states that a free plan is available while optional licensed capabilities remain separate.
  • Python packages now require Python 3.14 or newer, matching the desktop and web runtimes.
  • RF coverage results now report machine-readable scientific assurance and
  • P.2001 now uses the complete P.2001-6 procedure and its hash-qualified
  • Site-specific P.833-10 terminal-woodland attenuation can be enabled with
  • New ITU climatology packs require the official P.676-13 Annex 2 coefficient
  • New packs also require the official P.836-6 annual surface-water-vapour
  • Satellite paths in the ionospheric range now explicitly disclose omitted
  • P.528 assurance now reflects validation against every valid cell in the
  • RFSim Coverage cloud runs now use durable queued CPU/GPU workers, immutable
  • The Sionna refraction control is now described as opt-in building and material penetration, with clearer limits on what the model represents.
  • Sionna RT now preserves the requested interaction depth when recovering from ray-solver loop failures, and free-edge diffraction is an explicit experimental depth-1 option instead of being enabled automatically. High-quality coverage now uses more rays at the balanced interaction depth, and incompatible edge-diffraction requests are rejected before starting a run.
  • Sionna RT generation now reuses unchanged propagation snapshots and loaded scene devices, avoids repeated path conversions, and releases idle worker memory automatically.

Fixed

  • Enabling map rays now automatically selects a fully connected emitter when no endpoint was selected.
  • Sionna signal generation now recovers from a known mixed reflection-and-diffraction kernel failure by using first-order interactions and recording the reduced solve depth.
  • Windows staging builds now support F12 and Ctrl+Shift+I for renderer diagnostics while production keeps developer tools disabled.
  • Kept distance-scale labels fully visible at the edges of RFSim heatmap images.
  • Showed distinct colorbar values when a heatmap's data range is narrow.
  • Fixed installation of the custom block starter package after its package layout changed.
  • Labeled every development-only node in the sidebar with a Dev badge, including nodes that also have a Beta badge.
  • Bundled the image support required to compile Hybrid AOI terrain and render topography previews in the desktop app.
  • Older projects with saved FSK or PSK data patterns now open without crashing the node editor.
  • The map minimap now displays nodes and the current viewport instead of appearing empty.
  • P.840 cloud attenuation from integrated cloud-water maps now uses the
  • P.1411 street-canyon and over-rooftop results now use published site-general
  • P.530 fixed-link results now include P.676 gas and median-Earth-curvature
  • P.530-19 rain attenuation now applies the P.838 polarization exponent and
  • P.1411 now provides an explicit urban one-turn site-specific mode backed by
  • P.1411 one-turn corner loss now applies equation (65) without the erroneous
  • P.839 rain heights in newly built climatology packs now include the required
  • P.618 gaseous attenuation now uses the P.676-13 Annex 2 instantaneous
  • SigMF annotations now align with the baseband spectrogram when importing centered or retuned captures, and 5G NR exports now write absolute annotation frequencies consistently across antenna recordings.
  • Sionna channels now make the active propagation backend explicit, preserve local terrain detail with link-focused ray-tracing scenes, import common lon/lat building footprints without an extra projection package, retry LoS-only ray searches at higher quality, and report the physical paths summed into received IQ.
  • Fixed selected terrain, land-cover, and building files being incorrectly reported as missing in the desktop app.
  • Spectrogram measurements can now be placed over visible annotations without selecting or moving the annotation.
  • Corrected Wi-Fi convolutional coding so generated 802.11a/g frames decode successfully in independent GNU Radio receivers at every supported legacy OFDM rate.
  • The Windows desktop changelog now reliably shows the release notes packaged with the installed app.

[0.1.56] - 2026-07-25

Changed

  • Spectrogram rendering now uses the responsive viewport engine for all signals; the former beta toggle and legacy renderer have been removed.

Fixed

  • Saved projects now reliably include loaded input-file and recorder samples, restore them into the desktop runtime after import, and report incomplete project data instead of silently generating an empty spectrogram.
  • Repeated spectrogram generation now keeps each run's stored sensor output separate, preventing an earlier cleanup from deleting newly generated chunks.
  • Spectrogram window size now controls the number of analyzed samples independently of FFT size, while preserving signal power when shorter windows are zero-padded.
  • Moving Average now smooths neighboring spectrogram frames consistently during generation, viewport navigation, recording trim previews, and local-agent previews.

[0.1.55] - 2026-07-25

Changed

  • SigMF exports now default to matching `.sigmf-data` and `.sigmf-meta` files on both web and desktop. Web exports wait for generation to finish and use ordinary browser downloads, without requesting folder access. A remembered option can package each recording as its own `.sigmf` archive, while multi-recording Collection exports continue to produce one collection archive.

Fixed

  • Web raw-binary IQ downloads can now start while signal generation is still running, writing completed chunks directly to the selected file in supported browsers.
  • Large web SigMF data/metadata pair exports now convert completed IQ chunks directly into the selected format instead of assembling the full floating-point recording in memory.
  • SigMF archives exported without optional TAR end blocks can now be loaded, and new exports include standards-compatible end blocks.
  • macOS builds without a Developer ID certificate now use a complete ad-hoc signature, allowing the standard unidentified-developer approval flow instead of being reported as damaged.

[0.1.54] - 2026-07-25

Added

  • The Map now shows height-styled Hybrid AOI building footprints by default and can display the strongest propagation rays for a selected Sionna-linked emitter or sensor.

Changed

  • Local Topography now uses frequency-dependent terrain and building-profile diffraction from 30 MHz through 6 GHz, honors the LoS and Diffraction path switches, and rejects endpoints outside or below the loaded terrain.
  • 3D emitter and sensor beam patterns are now evaluated for each propagation path before multipath is combined. Map rays show antenna attenuation and mark dominant terrain obstructions.
  • Desktop releases now use an updated Electron runtime and refreshed cloud and routing dependencies with current security fixes.

Fixed

  • Hosted project launches no longer repeat session activation while navigating into an opened project.

[0.1.53] - 2026-07-25

Added

  • RFSim Coverage can optionally calculate outdoor heatmaps, point inspections, relative comparisons, and GNSS jammer paths with GPU-backed Sionna ray tracing over terrain and uploaded structure geometry.

Changed

  • Outdoor structure uploads accept normalized RFSim and common OpenStreetMap building properties, can be read back as WGS84 GeoJSON, and can be outlined on heatmap and GNSS PNGs.
  • Sionna receiver surfaces are clipped around buildings, indoor transmitter and point-receiver positions are rejected, and run diagnostics report geometry and ray-interaction details.
  • Added optional Windows NVIDIA Sionna runtime installation without bundling a second Python runtime or increasing the normal desktop download with ray-tracing dependencies.
  • Sionna ray-traced channels now apply endpoint polarization, path-specific Doppler from moving endpoints, and atmospheric attenuation along each reflected or diffracted path segment, with richer path diagnostics and faster reusable scene solves.

Fixed

  • SigMF annotations imported through an input-file node now appear immediately in the annotations panel.
  • Loose SigMF pair pickers now show both loaded filenames instead of a misleading native “no file chosen” status.
  • Desktop spectrogram regeneration now cancels superseded file-backed jobs and starts the latest graph immediately without active-job errors.
  • Fixed Input File generation failures for single-channel real imports in web and desktop.
  • Made a single Undo unload a newly imported IQ file while keeping its Input IQ File node in the graph.
  • Fixed automatic spectrogram annotations in the web demo.
  • Fixed web generation exhausting its Pyodide memory during long, complex simulations.
  • Fixed large progressive web spectrograms stalling or losing regions while chunks were still being saved.
  • Input IQ File now loads matching SigMF metadata, including the sample rate, datatype, and annotations. Desktop discovers same-folder sidecars automatically, while web imports can select both files together.
  • Fixed Sionna runtime packs hanging while the desktop waited for their startup handshake.
  • Fixed Sionna ray tracing for imported terrain and building scenes by emitting compatible RF material identifiers.
  • Kept spectrogram annotation labels visible when their boxes extend beyond the current zoomed or rotated view, with the full name shown when hovering over shortened labels.

[0.1.52] - 2026-07-19

Added

  • RF coverage requests can use NTIA ITM and P.528, ITU-R P.452, P.530, P.1812, P.1411, P.2001, and P.2108 clutter procedures, with explicit capability and conformance diagnostics.
  • Dedicated GNSS runs calculate satellite visibility, C/N0 degradation, DOP, and acquisition or tracking denial from inline or SP3 ephemerides and intentional or adjacent-band interferers.
  • GNSS denial runs can render selected denial, tracked-satellite, minimum-C/N0, and PDOP maps as standalone or terrain-overlay PNG artifacts.

Changed

  • NXDN, DMR Tier 2, P25 Phase 1 and 2, Analog PMR, and GPS L1 C/A blocks are now available without enabling Beta Blocks.
  • Propagation requests now present one model-specific parameter block, typed application and clutter choices, and clearer OpenAPI examples while continuing to accept saved requests that use the earlier model-block format.
  • Scene-layer routes now expose clutter and radio-climate layer kinds as typed OpenAPI choices.
  • Propagation parameters now include clearer units, statistical meanings, model limitations, and examples, with stricter validation for refractivity, P.1812 location percentages, P.530 rain percentages, and categorical raster codes.

Fixed

  • Fixed the Into Sight Help easter egg failing to load after an earlier production cache miss.
  • Fixed Windows desktop builds failing to start when the packaged Python backend retained a path from the release build machine.

[0.1.51] - 2026-07-17

Added

  • Added a synchronized musical surprise to desktop Easter Egg mode.
  • Added static roll controls to 3D emitters and sensors so asymmetric antenna patterns can rotate about boresight while motion waypoints remain position-only.

Fixed

  • Prevented the spectrogram page from repeatedly regenerating annotations when renderer state changes without a graph change.
  • Fixed annotation resize cursors getting stuck after leaving an annotation box.
  • Made the spectrogram action tool use the regular cursor over plain spectrogram areas.
  • Added visible download progress and aligned update controls when fetching a macOS update installer from the desktop app.
  • Fixed a spectrogram freeze where changing FFT settings and then zooming could leave the recompute indicator stuck.
  • Unified spectrogram Undo and Redo across zooming, panning, and manual annotation edits, while reliably restoring both axes without delayed plot updates creating duplicate history steps.

[0.1.50] - 2026-07-15

Added

  • Added a What's New section to Help with a direct link to the full changelog.

Changed

  • Moved annotation opacity into the color picker and limited it to the box fill, keeping annotation borders and labels opaque.

[0.1.49] - 2026-07-14

Added

  • Added per-annotation opacity controls, preserved in SigMF appearance colors as an optional alpha byte.
  • Added automatic and wideband channel response controls for 3D ITU and Sionna channel nodes, including frequency-dependent ITU loss correction for wideband signals and cached sparse path responses for Sionna-based channels.
  • Added crawlable, source-backed product comparison pages and improved public page metadata for search engines and AI-assisted discovery.

Changed

  • Expanded product comparisons with a clearer view of RFix workflow advantages, an at-a-glance capability matrix, concrete workflows, claim-level sources, and links into relevant RFix features and examples.
  • SigMF recording and annotation-table exports of an unchanged, single Input File recording now default to the original recording's filename.

Fixed

  • Stopped the macOS desktop app from repeatedly showing the same ready-to-install update after choosing Later.
  • Unsigned macOS builds now offer an authenticated manual installer download instead of attempting an unsupported automatic installation, while keeping the signed update path ready for future use.
  • Updater failures now show their underlying reason.
  • Preserved and rescaled manual spectrogram annotations across sample-rate changes while regenerating automatic annotations without waiting for long IQ generations to finish.

[0.1.46] - 2026-07-10

Added

  • Added a Firebase-gated LocalAPI Docker download portal for authorized client accounts.

Changed

  • Desktop installer downloads from the website now start through the browser download manager instead of buffering the installer in the page first.

Fixed

  • Fixed macOS desktop updates getting stuck after clicking restart to install.

[0.1.45] - 2026-07-09

Changed

  • The desktop "What's New" popup now shows the full changelog with the newest entries first.

[0.1.44] - 2026-07-09

Fixed

  • Input File node now shortens the project's global sample duration to match a shorter loaded file when it is the only node in the graph, instead of only ever extending the duration to fit longer files.

[0.1.43] - 2026-07-08

Added

  • In-app "What's New" popup and changelog page for the desktop and web apps.
  • Opt-in "Local MCP Connector" beta for the desktop app, letting local agent clients (Codex, Claude, Cursor, and others) read and edit the current project.
  • Offline Docker bundle for running the RFIX API locally without pulling from a registry, activated with a license file, plus a one-command helper to register its MCP endpoint with common agent clients.
  • Setting to disable automatic desktop app updates (manual update checks remain available).
  • SigMF Collection archive export (bundled `.zip`/`.tar.gz`) from the IQ download dialog, with streaming export for large recordings on desktop.
  • SigMF output format for the local generate-to-file and spooled-generation API/SDK methods.
  • Color-coded spectrogram annotations that can be copied and pasted between rows.
  • Input File node now shows file details (duration, sample count, sample rate) and prompts to reconcile mismatched sample rates against the project.

Changed

  • Faster signal generation for larger, multi-emitter scenes through accelerated protocol encoding, resampling, and channel/motion math.
  • Redesigned the Overview page hero section with an animated multi-scenario carousel.
  • Upgraded the in-browser web runtime to Python 3.14 with refreshed scientific computing libraries.

Fixed

  • Corrected the IQ Mismatch channel effect block, which rotated quadrature phase error in the wrong direction.
  • Corrected the Phase Noise block's power conversion, which applied roughly half the intended noise power, and fixed its mislabeled units.
  • Fixed the visibility checkbox in measurement/annotation tables not always registering a click.
  • Fixed Keysight N9000B instrument capture failing when the analyzer was left in the wrong mode.
  • SigMF exports now include correct SHA-512 data-file hashes.