433 mhz pairing

Hi, i have an universal remote like this:

and i have the rx/tx kit like this:
.

i have to clone the tx's kit in the remote but when i transmit the signal from tx, my remote does'nt clone.

how to fix? the remote works (there is a code in the A button and i can use it) and the kit too.

Hi

This is the site where I found all I needed, when I first started to play with 433 MHz.. It works with so called "older" devices but there is some newer 433 MHz devices on market which aren't so easy. I'm not sure what's the difference between those two but like it was done on that site, worked with my devices.

TommiP

perfect, thanks. I'll try it when I get home