I was curious to decode the EFR signal from Mainflingen. An old idea about a well-know signal, but never decoded, maybe for laziness or time spent looking for something else.
First of all, here you can find official info: http://www.efr.de/en/efr-system/
Here the three different EFR signals:
From the left:
Mainflingen
| 129,1 kHz |
Burg
| 139,0 kHz |
Lakihegy
| 135,6 kHz |
Nice to see the (obiuvsly) identical sincro signal on all the transmissions.
Here the decoded signal:
