Hi there, I'm a bit of a newbie to all of this, so I was wondering, do I need a separate 433MHz transmitter, or can I use the one from the remote? Also, on the Elro's I have, there's a jumper bit to encode your remote with a 5 on/off code so that you don't accidentally switch your neighbours lights off, if he has the same system. But I can't find this encoding bit anywhere in the code, so how will that work?