Thanks for your informations.
My problem: I have an electric motor screen controlled (up/down) by a RF remote and receiver. I could buy a IR receiver with a IR remote for the screen and use my MX-3000 learning these signals. When I've read that the model MX-6000i can send 433mhz signals I thinked that it could even learn RF.
You said that there is no remote that learns RF. So what's the use of "i"model of MX-6000. How can I use this remote to control my screen if it can't learn RF?
There's a workaround?
I found a new MX-6000 but I didn't buy it because it's not the "i" version.
At this point, do you think that I could buy it for the "i" model isn't useful for me?