Native RF analysis for macOS

One instrument from live capture to decoded message

Sigil is written in SwiftUI and Metal, and works from a live SDR or a recorded IQ file.

⇧ drag to select a signal · scroll to zoom · drag to pan

≡ DecoderTPMS2 sensors

14:32:07.4121C6F02A4Schrader-EG53MA4 temp=21°C pressure=32.5PSI

Drag the selection to move · double-click to zoom · ⇧ click to clear

AutoASKFSKPSK Auto248 AUTO · FSK MARGIN 72%

drag dashed line ↕ threshold · bottom lane ↔ phase · chips ↔ scrub · ⌥ fine · scroll zoom

BITS 00101101 11010100 10101110 10010101 01001110 00101101 11010100 10101110… 96 bits · 9.6 kBd

⛁ 8 bursts · 256 bits ▾ GRIDTABLERASTER BINHEXASC SYNC 2DD4 ×8

081624

syncmessagecheckchanging cols

≡ Decoder ⊕ Symbols ∿ Demod # Bits TPMS · 2 sensors

14:32:07.412	1C6F02A4	Schrader-EG53MA4	temp=21°C pressure=32.5PSI
14:32:09.876	0F58C11D	Toyota	temp=24°C pressure=35.1PSI
14:32:11.204	1C6F02A4	Schrader-EG53MA4	temp=21°C pressure=32.4PSI
14:32:13.771	0F58C11D	Toyota	temp=24°C pressure=35.0PSI
14:32:15.336	1C6F02A4	Schrader-EG53MA4	temp=21°C pressure=32.4PSI
14:32:17.902	0F58C11D	Toyota	temp=24°C pressure=35.0PSI
14:32:19.478	1C6F02A4	Schrader-EG53MA4	temp=21°C pressure=32.3PSI
14:32:21.115	0F58C11D	Toyota	temp=24°C pressure=34.9PSI

EXPORT CSV · bytes · WAV 8 rows · 2 sensors

zsh — sigil

$ sigil decode drive.sigmf -d tpms
  [structured] Schrader-EG53MA4 id=1C6F02A4 temp=21°C pressure=32.5PSI
$ sigil generate psk random:2000 --order 4 --symbol-rate 9600 -o qpsk.sigmf
$ sigil capture --device hackrf -c 433.92e6 -s 10e6 -o band.sigmf
$ sigil demod band.sigmf -m usb --stream-format s16le -o - | freedv_rx 1600 /dev/stdin out.raw
$ sigil app run-decoder flex # drive the running app