Need help to decode 868.4MHz nRF905 transmitter

[merbanan]

Need help to decode 868.4MHz nRF905 transmitter

[eelcohn]

I realize that this is a very old topic, but I've figured out a way to decode nRF905 signals, and I'd like to report this here as a reference for others:

./rtl_433 -f 868400000 -g 50 -X n=nrf905,m=FSK_MC_ZEROBIT,s=10,r=100,preamble={10}fd4,invert

[merbanan]

The demodulator failes to parse the pulses so you need to fix the demodulator first. Then you need to add manchester decodinng.

[creaktive]

@fritzmeier, could you please share your 2xflarm file? I am also trying to decode FLARM signals :)

[fritzmeier]

@creaktive, what kind of hardware you are using for receiving 868MHz and for decoding ?

[creaktive]

@fritzmeier I'm using RTL2832U with R820T tuner and a 12-segment collinear antenna for 868MHz. My access to the actual FLARM hardware is limited, so I was unable to record a sample to work with offline.

[fritzmeier]

@creaktive, here i can attach only graphic-files, send your e-mail address to [email protected]

[mcauser]

You can attach any files, if you .zip them

[merbanan]

Without any sample signals there is nothing we can do further.