Increase BP/SP iteration count from 30 to 50 to match WSJT-X reference
and give belief propagation more opportunities to converge near-threshold
candidates.
Replace the parity-based OSD-1/OSD-2 fallback (which required LDPC to
have nearly converged) with ft2_osd_lite_decode applied to all five LLR
combination passes. The CRC-based decoder works directly from raw LLRs
without depending on LDPC convergence, searching the 24 least-reliable
systematic bits for up to three bit errors via OSD-3.
Also increase max_candidates in ft2_osd_lite_decode from 12 to 24 for
broader coverage of likely error positions.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
Diagnostic logging showed the FT2 BP/SP decoders consistently reach
1-8 residual parity errors rather than zero — the LLRs are correct
in direction but LDPC belief propagation stalls just short of
convergence.
Add ft2_osd_decode() implementing Ordered Statistics Decoding orders
1 and 2: after the five-pass BP/SP loop fails, sort the 174 codeword
bits by |LLR| ascending and trial-flip single bits (OSD-1, always)
or all pairs of the 50 least-reliable bits (OSD-2, when the remaining
error count is <= 4). Each trial costs one O(83) parity check;
worst-case overhead is ~1300 checks per candidate, negligible next to
the 5 x 30-iteration BP/SP passes already performed.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
Add err=N/N/N/N/N to the FT2 window diagnostic log line, showing the
minimum number of unsatisfied parity equations across all candidates
for each of the five LLR passes. This makes it possible to distinguish
between a signal-quality-limited failure (small error count) and a
systematic decoder bug (large error count), which is the key unknown
in diagnosing the current FT2 LDPC non-convergence.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
Normalize FT2 log-likelihoods before LDPC and fall back to\nthe standard waterfall candidate decoder when the raw FT2\npath produces no decodes.\n\nCo-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
Use a wider FT4 time-offset search range in candidate acquisition\nso decode remains robust with current pipeline latency.\n\nCo-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stanislaw Grams <stanislawgrams@gmail.com>
Use millisecond-based slot indexing for FT4 decode windows in\nforeground and background decoders to avoid premature 7s resets.\n\nCo-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stanislaw Grams <stanislawgrams@gmail.com>
Use an FT2-specific raw sample window and candidate acquisition path.
Keep the build clean by removing the stale monitor warning.
Co-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stanislaw Grams <stanislawgrams@gmail.com>
Use FT2-specific analysis settings and a wider receive span.
Switch server-side FT2 decoding to a rolling async window.
Widen FT2 candidate timing search in the vendored decoder.
Co-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stanislaw Grams <stanislawgrams@gmail.com>
Implement a distinct FT2 protocol path in the decoder stack and align\nits timing with the confirmed FT2 framing used by Decodium.\n\nCo-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stanislaw Grams <stanislawgrams@gmail.com>
The function handles FT8, FT4, and WSPR locators so the ft8 prefix
was misleading. Updated all call sites in app.js, ft8.js, ft4.js,
and wspr.js.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stanislaw Grams <stanislawgrams@gmail.com>
- Add ft4 to DEFAULT_MAP_SOURCE_FILTER (visible by default)
- Add ft4 hue to locatorThemeHues (peakHue + 30° offset from FT8)
- Propagate ft4 through locatorSourceLabel, locatorFilterColor,
locatorHueForEntry, isLocatorOverlay, applyMapFilter,
ensureDecodeLocatorMarker, pruneLocatorEntry, rebuildDecodeContactPaths,
clearMapMarkersByType, markerSearchText, navigateToMapLocator, and
the source items chip row
- ft8MapAddLocator now maps type="ft4" to markerType="ft4" so FT4
locators get their own distinct marker colour and filter chip
- ft4.js: pass "ft4" (not "ft8") to ft8MapAddLocator
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stanislaw Grams <stanislawgrams@gmail.com>
bmReadDecoders, bmWriteDecoders, and bmApply were all missing FT4,
so the decoder checkbox was never saved and tuning a bookmark never
toggled the FT4 decoder state.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stanislaw Grams <stanislawgrams@gmail.com>
Decouple the longest-QSO summary from the contact path render toggle.
Keep the summary filtered by current map visibility while the toggle only
controls whether path overlays are drawn.
Co-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stanislaw Grams <stanislawgrams@gmail.com>
Serve grouped decode history payloads and restore each decoder through
explicit history restore hooks instead of replaying a mixed message stream.
This reduces replay overhead further by removing type regrouping and keeping
history restoration on decoder-specific bulk paths.
Co-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
Serve a dedicated decode-history worker and move compressed history fetch
and CBOR parsing into that worker.
The main thread now drains ready-made decode batches within a frame budget,
which further reduces UI disruption during large history restores.
Co-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
Override the global button chrome on longest-QSO cards so they keep
the intended card layout instead of inheriting fixed control sizing.
Co-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
Replay decode history in decoder-specific batches instead of feeding every
message through the single-message path.
This reduces per-message array churn and UI scheduling during large history
loads while keeping the existing live decode behavior unchanged.
Co-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
Serve decode history as gzipped CBOR and decode it in the frontend.
Defer map materialization until replay completes to avoid replay-time stutter,
and include the pending longest-QSO style adjustment.
Co-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
Let users click longest-QSO cards to isolate a single contact path on the map and click again to restore all visible contact paths. Also remove the extra inner panel styling from decode map tooltips so the popup renders as a single container.
Verification: node --check src/trx-client/trx-frontend/trx-frontend-http/assets/web/app.js
Verification: git diff --check -- src/trx-client/trx-frontend/trx-frontend-http/assets/web/app.js src/trx-client/trx-frontend/trx-frontend-http/assets/web/style.css
Co-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
Keep map history data cached when the history window is reduced so older APRS, AIS, VDES, FT8, and WSPR items can be shown again when the user expands the window, and add a global decode-history replay overlay with progress updates across the UI. Also update the longest QSO summary to render bidirectional contacts with <-> labels.
Verification: node --check src/trx-client/trx-frontend/trx-frontend-http/assets/web/app.js
Verification: git diff --check -- src/trx-client/trx-frontend/trx-frontend-http/assets/web/index.html src/trx-client/trx-frontend/trx-frontend-http/assets/web/style.css src/trx-client/trx-frontend/trx-frontend-http/assets/web/app.js
Co-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
Add a map summary section below the map that lists the five longest directed FT8 and WSPR contacts in the current view, including distance, band, age, and locator details.
Verification: node --check src/trx-client/trx-frontend/trx-frontend-http/assets/web/app.js
Verification: git diff --check -- src/trx-client/trx-frontend/trx-frontend-http/assets/web/index.html src/trx-client/trx-frontend/trx-frontend-http/assets/web/style.css src/trx-client/trx-frontend/trx-frontend-http/assets/web/app.js
Co-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
Add a map filter-panel history picker with 15 minute through 24 hour retention options and prune dynamic APRS, AIS, VDES, FT8, and WSPR overlays to the selected age window.
Verification: node --check src/trx-client/trx-frontend/trx-frontend-http/assets/web/app.js
Co-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
Write compressed audio-history replay directly into the local frontend history buffers so large APRS and AIS replays survive trx-client restart instead of overrunning the live decode broadcast channel.
Verification: cargo test -p trx-client --no-run
Verification: cargo test -p trx-frontend-http --no-run
Co-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
Automatically return control to the scheduler after using the Previous or Next entry controls so manual stepping does not leave the session latched in takeover mode.
Verification: node --check src/trx-client/trx-frontend/trx-frontend-http/assets/web/plugins/scheduler.js
Co-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
Apply scheduler-backed virtual channels as real manual selections so they take control, retune the rig, and restore bookmark decoder state including APRS/PKT. Also remove the inner border from the map decode locator tooltip.\n\nVerification: cargo test -p trx-frontend-http vchan\nVerification: node --check src/trx-client/trx-frontend/trx-frontend-http/assets/web/plugins/vchan.js\n\nCo-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
Keep scheduler-managed virtual channels reconciled while\nclients remain connected, instead of only materializing\nthem during the initial connect path.\n\nVerification: cargo test -p trx-frontend-http vchan\n\nCo-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
Materialize scheduler-managed virtual channels before the\ninitial channels SSE event when the scheduler currently\ncontrols the rig.\n\nVerification: cargo test -p trx-frontend-http vchan\n\nCo-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
Use the currently tuned virtual channel for the website title\ninstead of always showing channel 0 metadata.\n\nVerification: node --check assets/web/app.js\nVerification: node --check assets/web/plugins/vchan.js\n\nCo-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
Track the last applied scheduler entry so previous/next\ncycles correctly across active entries and resets the\ncountdown after manual entry changes.\n\nVerification: cargo test -p trx-frontend-http scheduler\nVerification: node --check assets/web/plugins/scheduler.js\n\nCo-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
sjg
