Decoding Oregon scientific WMR500

[rVs]

Hello,

I try to get data from my WMR500 meteo station (968MHz).

Is there a decoder for this station ?

I have recorded some frames (see attachement) but I don't understand what I see.

Cheers.

[Christian Z.]

The signal is noisy, it maybe won't work reliably. But we can clean it up, ook attached.
Throw the ook on https://triq.org/pdv/
It's ~25 µs PCM, not something we have seen from OS before.
We get the PCM bits: {200} 55 55 55 55 A7 23 A7 23 E2 02 7D B5 C4 0C 44 41 D4 F5 4C 73 81 60 C5 1E 2C
Put that in BitBench and shift one bit, now we get
aaaaaaa d391 d391 f1013edae2062220ea7aa639c0b0628f16
That's a well know sync word (d391), not sure what the payload is though, too much data and very random looking.

Try to get a cleaner signal, then record lots of codes and maybe we can spot fields and a trend.
This will work on clean signals:
rtl_433 -f 868.2M -X 'n=WMR500,m=FSK_PCM,s=25,l=25,r=3000,preamble=aad391d391'

Please open an issue on https://github.com/merbanan/rtl_433/issues so we can track progress.