Chrome classifies wheel events as "pointer" interactions and tracks async
continuations initiated by the handler. The wheel-on-freq-input path was:
jogFreq → setRigFrequency → postPath(/set_freq) [~700ms]
→ ensureTunedBandwidthCoverage [~700ms]
...two sequential network round-trips totalling ~1400ms of INP.
Three changes:
1. yieldToMain(): add a scheduler.yield() / setTimeout(0) helper that
yields the main thread back to the browser. Chrome's INP interaction
tracking ends at the yield point, so the network RTT no longer counts.
2. jogFreq: call applyLocalTunedFrequency() optimistically before the
yield so the freq display updates are visible in the very next paint,
then yield before firing any network requests.
3. setRigFrequency: move applyLocalTunedFrequency() before the awaits
(consistent optimistic-update contract for all callers), and run
postPath(/set_freq) and ensureTunedBandwidthCoverage() in parallel
via Promise.all — they are independent server operations.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
Three causes of >30 s SSE stalls:
1. SPECTRUM_IO_TIMEOUT was 300 ms — transient server jitter triggered
false-positive spectrum failures and immediate TCP disconnects.
Raised to 1 s to tolerate brief load spikes.
2. reconnect_delay was never reset after a successful TCP connect, so
after a few spectrum-induced disconnects the backoff reached 10 s.
Each new disconnect then cost 10 s of stale SSE state, and several
cycles accumulated to >30 s. Reset to 1 s on every successful
TCP connect so recovery stays fast.
3. SSE pings were emitted as comments (": ping"), which EventSource
never exposes to onmessage. lastEventAt was therefore never updated
by pings, causing the JS heartbeat to force-reconnect every ~20 s
even on healthy, stable connections. Changed to a named "ping"
event and added es.addEventListener("ping", …) to update lastEventAt.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
Replace the JSON f32 array (~7.5 KB/frame) with a named SSE event "b"
carrying base64-encoded i8 bins (~1.4 KB/frame, ~5x reduction):
event: b
data: {center_hz},{sample_rate},{base64_i8_bins}
1 dB per step covers the -128…+127 dBFS display range, sufficient for
visualization. RDS is stripped from the spectrum frame and emitted as a
separate named "event: rds" only when the payload changes. The JS
decoder uses atob() + sign-extension to reconstruct the float bin array.
A minimal inline base64 encoder is added server-side (no new crate).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
- Add "Enable HF APRS" toggle button to the HF APRS tab (same style as
FT8/WSPR); button is disabled during TX like other decoder toggles
- app.js: sync button text/colour from SSE state updates
- hf-aprs.js: connect button click to /toggle_hf_aprs_decode
- bookmarks.js: add "HF APRS" checkbox to Add/Edit Bookmark decoder
section; bmReadDecoders/bmWriteDecoders handle "hf-aprs" key; bmApply
toggles the decoder to match bookmark preference on recall
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
Adds a second APRS demodulator path tuned for the HF APRS standard
(300 baud Bell 103-style AFSK, mark=1600 Hz / space=1800 Hz), active
on RigMode::DIG. Shares AX.25 framing, APRS parsing, APRS-IS uplink,
and frontend display with the existing VHF stack.
- trx-aprs: parameterise Demodulator::new(); add AprsDecoder::new_hf()
- trx-core: HfAprs variant in DecodedMessage; hf_aprs_decode_enabled /
hf_aprs_decode_reset_seq in RigState/RigSnapshot; SetHfAprsDecodeEnabled
and ResetHfAprsDecoder commands; handlers.rs fallback arm updated
- trx-protocol: client command variants + bidirectional mapping; test
fixture updated
- trx-server: run_hf_aprs_decoder() task (activates on DIG mode);
hf_aprs history in DecoderHistories; rig_task command dispatch;
aprsfi uplink forwards HfAprs via OR-pattern
- trx-frontend: hf_aprs_history in FrontendRuntimeContext
- trx-frontend-http: prune/record/snapshot/clear helpers; SSE history
replay; toggle_hf_aprs_decode + clear_hf_aprs_decode endpoints;
/hf-aprs.js endpoint; HF APRS tab in web UI
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
Server emits an SSE sentinel event (history_done) after replaying
stored history. Client buffers all incoming messages until the sentinel
arrives, then drains the buffer in 30-event chunks via setTimeout so
the browser can handle input between batches. Live events after the
sentinel are dispatched immediately as before.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
Add cwAutoLocalOverride flag in cw.js to block server-state snapshots
from overriding the checkbox while a user-initiated POST is in-flight.
Expose applyCwAutoUiFromServer for app.js render() to call instead of
applyCwAutoUi, preventing a racing SSE event carrying the old cw_auto
value from immediately undoing the user's toggle.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
Add click-to-tune behavior on overview waterfall matching spectrum interactions, restore bookmark marker lines in the overlay using category colors, and keep current-tuned frequency marker visually distinct.\n\nCo-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
Ensure overview waterfall incremental updates continue on HiDPI and anchor bookmark chips to the top of the full spectrum view (waterfall + waveform).\n\nCo-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
Improve WebGL runtime performance by caching/downsampling overview waterfall texture updates and batching marker/dashed-line draws; keep bookmark chips anchored at the top of the waterfall area.\n\nCo-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
Replace Canvas2D rendering in spectrum, overview, signal overlay, and CW tone picker with a shared WebGL renderer and wire the new asset into frontend HTTP routes.\n\nCo-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
Add a right-side slider to control the waterfall/waveform split and\npersist the selected ratio locally.\n\nRework spectrum height layout so manual resize adjusts total plot height\nwhile split controls the overview/spectrum ratio.\n\nKeep center-frequency arrows and side bookmark stacks vertically centered\nwithin the full spectrum view container.\n\nCo-authored-by: Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
Make the spectrum resize grip easier to use and style it closer to\nexisting controls.\n\nKeep auto-max behavior by default while allowing manual drag to\nresize beyond viewport fill, enforcing only the minimum height.\n\nCo-authored-by: Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
Make spectrum plot use maximum available viewport height by default.
Add draggable vertical resize grip with a reasonable minimum height
and double-click reset back to auto-max.
Co-authored-by: Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
Fix CW picker redraw when the decoder sub-tab becomes visible to avoid
white/blank canvas rendering.
Widen CW tone picker/input range to 100-10000 Hz and raise CW/CWR
bandwidth max to 9 kHz.
Co-authored-by: Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
sjg
