Silent Gliss SG11490 blinds remote decode help

[hamchapman]

I've got an electric blinds remote that I'm trying to decode and I'm struggling to work out how to make progress.

Some links about the remote:

• https://www.sg-s.co.uk/spares-parts/electrical-curtain-track-system-parts/5600-system-parts/11490?srsltid=AfmBOopMpzI4QPV2duq-pkS7fTJx6W-xJeDVfEFnO7E0nQz_4kt-Z3mq&dsort=sort_order
• https://www.discountelectriccurtains.co.uk/accessories/5-channel-wireless-wall-switch-11490/?srsltid=AfmBOor6ifFjxo5H4jX31uemS4POdMaD2S4ITrwGdznX0UmyBXGqiDyZ

A PDF with some info:

I've captured some samples of pressing some different buttons and attached them as sg-samples.zip:

sg-samples.zip

I captured them using the following command:

rtl_433 -f 868M -S unknown

Hopefully the filenames explain what each sample is but the summary is that there are 5 different types of sample, with 3 instances of each. The different "types" are:

• Channel 1, pressing up button
• Channel 1, pressing down button
• Channel 2, pressing up button
• Channel 2, pressing down button
• Channel 1, pressing stop button

Please let me know if you can suggest some ways for me to progress with getting to a decoder 🙏

[zuckschwerdt]

It seems there is much noise and little of a sine waveform to clearly see the FSK.
(try https://triq.org/spectrogram-next/ to load a cu8 and mouse-scroll zoom in to see no real sine waves.)

Try a higher sample rate (-s 2048k ?) and different placement or antenna and such.
The first 20 or so bits in the decoding on https://triq.org/pdv/ should be a regular pattern like 101010101…

[hamchapman]

Thanks for the suggestions. I've tried using a higher sample rate but things look pretty much the same, same with different placement.

I'm using an RTL-SDR v4 with this antenna. Should that work as a combination to be able to get a good read on the signals? Any suggestions for other things I could try if not? Thanks!

[zuckschwerdt]

It should work. Maybe try without an antenna and 20cm – 1m distance? You can compare with some FSK signals in https://github.com/merbanan/rtl_433_tests to get a feeling what you are looking for.