Decode RF signal

Hi, my house has a motored curtain which uses an RF remote controller. And now I want to take a step further and control the curtain with arduino.

I've bought an RF receiver and tried to catch the signal from the remote controller in order to decode it. However for some reason the RF receiver didn't receive any so idk if there's anything wrong with it.

Both the receiver and the remote controller use the same frequency (433) so wrong frequency is out of the question, unless the info printed on the controller was wrong.

So yeah I'm currently at a roadblock right now, if someone can either tell me what is wrong or give me another route it will be very great.

Some more info:

the remote controller model is AC123-02D
the receiver doesn't have an antenna yet, but when I tried the remote controller literally touching the module so range shouldn't be a problem?
the receiver model is MX-05V, the pins are all correctly connected

433 mhz does not mean one channel at 433.00000000 mhz. 433 means a band of frequencies in the vicinity of 433 mhz
that receiver is for ASK, a cousin of AM.
there is no indication of which modulation scheme the transmitter is using
you are listening to an unspecified random frequency expecting to hear an unknown type of modulation on an unspecified random frequency

aister123:
Both the receiver and the remote controller use the same frequency (433) so wrong frequency is out of the question, unless the info printed on the controller was wrong.

The transmitter and receiver might well be marked as 433Mhz type devices, does not mean they are both on exactly the same frequency.