Widen noise detector offset from ±100Hz to ±200Hz to reduce spectral
leakage into the noise reference, and scale threshold_multiplier for
SNR space (2.8 → 1.54) so real CW signals reliably trigger tone
detection instead of producing all-E's at 60 WPM.
Fix misleading "decoder startup" timeout message on stop requests and
increase stop timeout from 2.2s to 5s.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
rtl_fm prints device info, tuning, and errors to stderr but the morse
route only logged these server-side. Now stderr lines are forwarded to
the morse queue as info events, displayed in a compact diagnostic log
below the scope canvas. After 10s with no audio data, the scope text
escalates to prompt the user to check the SDR log.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Replace blocking rtl_stdout.read() with select()+os.read() so the
decoder thread emits diagnostic heartbeat scope events when rtl_fm
produces no PCM data (common in direct sampling mode). Add waiting-state
rendering in the scope canvas and hide the generic placeholder/status
bar for morse mode.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Enable direct sampling (-D 2) for RTL-SDR at HF frequencies below 24 MHz
so rtl_fm can actually receive CW signals. Add startup health check to
detect immediate rtl_fm failures. Push stopped status event from decoder
thread on EOF so the frontend auto-resets. Add frequency placeholder and
help text. Fix stop button silently swallowing errors.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Closes#155 — users can now access settings directly from the welcome
screen without entering a mode first.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Fix "What's New" section shifting up/down on smaller screens (#157) by
isolating the logo pulse animation to its own compositing layer, stabilizing
the scrollbar gutter, and pinning the welcome container dimensions.
Morse mode improvements: relocate scope and decoded output panels to the
main content area, use shared SDR device controls, and reduce panel heights
for better layout.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Use run-btn/stop-btn classes and bottom placement instead of
btn-primary/btn-danger in a flex section, and preset-btn class
for band presets. Aligns with all other mode panels.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
TSCM RF scan now auto-detects HackRF via SDRFactory and uses
hackrf_sweep as an alternative to rtl_power. Also includes
improvements to listening post, rtlamr, weather satellite,
SubGHz, Meshtastic, SSTV, WeFax, and process monitor modules.
Fixes#154
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
New signal mode for decoding Morse code (CW) transmissions via SDR.
Includes route blueprint, utility decoder, frontend UI, and tests.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
When an error occurred with an out-of-range span (e.g. 30 MHz on
RTL-SDR), the span input kept the invalid value. Track the last
effective span from successful starts and reset the input on error.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Add pre-flight check for I/Q capture binary before spawning process
- Capture stderr from I/Q process for better error diagnostics
- Sync effective span value back to UI when backend adjusts it
- Use get_tool_path('rx_sdr') in Airspy, HackRF, LimeSDR, and SDRPlay
command builders to support custom install locations
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Replace hardcoded rtl_fm with SDRFactory abstraction layer so WeFax works
with any supported SDR hardware, matching the pattern used by APRS and
other modes. RTL-SDR direct sampling flag preserved for HF reception.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Add flex-shrink: 0 to .section, .run-btn, and .stop-btn so flex
children maintain natural height and the sidebar scrolls instead
of compressing content on 1080p displays.
Fixes#151
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Timer threads now log on fire and catch all exceptions so scheduled
captures never die silently. Frontend connects SSE when the scheduler
is enabled (not only on manual Start) and polls /wefax/status every 10s
as a fallback so the UI stays in sync with auto-fired captures.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Replace window.open() with a fullscreen modal matching the SSTV
pattern: toolbar with download/delete SVG buttons, close button,
click-outside-to-close, and confirmation before delete.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Replace blocking stdout.read() with select()-based non-blocking reads
so the decode thread responds to stop within 0.5s
- Make stop() non-blocking by releasing the lock before terminating the
process and removing the redundant wait()
- Move initial scanning SSE event from start() into the decode thread so
it fires after the frontend EventSource connects
- Update frontend stop() to give immediate UI feedback before the fetch
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
rtl_fm subprocess failures (missing tool, no SDR hardware) were silent —
add tool-path check and post-spawn health check in _start_pipeline(),
show errors prominently in the strip status bar (red text + red dot),
and include error detail in scheduler skip events.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Flash the Start button itself with amber pulse when clicked without a
station selected, and show "Select Station" in the strip status text
right next to the button so the error is immediately visible.
Add a 24-hour timeline bar with broadcast window markers, red UTC time
cursor, and countdown boxes (HRS/MIN/SEC) that tick down to the next
broadcast. Broadcasts show as amber blocks on the timeline track with
imminent/active visual states matching the weather satellite pattern.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Fix silent failure when starting without station/frequency selected by
flashing amber on status text and dropdowns. Add auto-capture scheduler
that uses fixed UTC broadcast schedules from station data to
automatically start/stop WeFax decoding at broadcast times.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Implement HF radiofax decoding with custom Python DSP pipeline
(rtl_fm USB → Goertzel/Hilbert demodulation), 33-station database
with broadcast schedules, audio waveform scope, live image preview,
and decoded image gallery. Amber/gold UI theme for HF distinction.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Smittix