ARLA/CLUSTER: SignalID, a aplicação para smarthphones que identifica os modos digitais desconhecidos em 5 segundos

[João Costa > CT1FBF]

Smartphone app helps identify unknown data modes

There's an incredible amount of radio signals.

It's impossible to know them all, let alone recognize them. So why not get
help from *SignalID*?

At the moment, it recognizes about twenty signals (the exhaustive list is
below) With only 5 seconds of recording time, it tries to recognize the
signal.

To use it:
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 record)

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)

And more ! Complete list in the application.

The app is open source !

https://github.com/Neosama/SignalID

https://www.youtube.com/watch?v=E-y1Ts1q2RU&feature=youtu.be

https://play.google.com/store/apps/details?id=com.tortillum.signalid

*Stephen Walters G7VFY*
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