Not receiving signal with receivers (SRX882 or other one)

[IpPsar01]

Hi,
(sorry about posting here also - I also posted in sui77/rc-switch #issue 472.)

I am using the SRX882 receiver together with a raspberry pi 4. The CS pin is connected to vcc.
I have three different remote controls to turn on/off three sets of remote sockets. All three operate on 433MHz. See picture.

When using the receiver combined with the rpi-rf_receive (https://github.com/milaq/rpi-rf) I only receive a signal using the older/grey receiver. So the setup seems to work fine.

For the two newer ones (white in the picture) no signal at all is received.

Can anyone help me out what I need to do to receive/decode the signals of the two newer receivers?
It would be great since after a lot of trying I am clueless

BTW; I have another cheaper receiver giving exactly the same result.

[IpPsar01]

I have solved it for now in a fairly ugly manner so I can continue with my project. I have converted the signal of several seconds to a sequence with the format duration/value. When sending that sequence to the transmitter the sockets respond. Not very nice but good for now. It took me several recordings to succeed so I guess that the signal is very rapid compared to the signal of the ELRO remote control.

If anyone can still help with a good solution I would be very happy.