Smartphone App Identifies Unknown Data Modes

SignalID is a smartphone app to help you identify data modes

How to use SignalID

Set the frequency and bandwidth properly.

Selecting the frequency range. (0-30 MHz / Other) Place the microphone of the telephone near the loudspeaker. (The quieter the environment is around, the fewer errors will occur) Press the big button that dances.

Wait 5 seconds. (Time required for the record)

SignalID Tips

The algorithm is based on frequency, a wrong tuning of your radio/SDR will result in an erroneous detection.

The recording is limited to 5 seconds, for practical reasons. Recognition of a signal may require several attempts.

If you notice bugs, have remarks or suggestions, please leave a comment.

Here is the non-exhaustive list of recognized signals :

  • RTTY (Commercial 85Hz, 170Hz, 450Hz, 850Hz, Amateur 170Hz)

  • PactorI (Standard, FSP, FEC, SELCALL)

  • ASCII (170Hz)

  • ALIS

  • Codan8580 (200Hz, 250Hz)

  • CIS36_50

  • CIS40_5

  • CIS50_50

  • STANAG 4285 (GEN, SYS3000 FEC, 8PSK, TFC, IDLE, SYS3000)

  • FT4

  • FT8

  • WEFAX (120, 240)

  • 2G ALE

  • 3G ALE

  • CHIP64

  • APRS (Burst)

SignalID (GooglePlay Store) - https://play.google.com/store/apps/details?id=com.tortillum.signalid