The third set was from the Mädiamaakt and I know, unfortunately, the manufacturer no longer, here the set worked precisely only as long as it does not engage in Powerlan adapter (network out of the socket, eg Devolo). By plugging in an adapter Powerlan I had again and again teach the coding. What that had to do with each other, no one knew the stupid market also -> returned.
The fourth set of Brennenstuhl came over and Amazon for months now doing his service. The manual coding by DIP switches (tiny slide switch) requires unique manual setting, for which you need a Phillips screwdriver 1 to get to the switch at all. The distance between the radio-controlled sockets is irrelevant, they also work at a normal multiple socket properly. For me, all 3 are placed next to each other and react immediately and accurately.
Tip: the first 5 DIP switches must be the same for all wireless control doses and the hand-held transmitter from the set, the right 4 DIP switches for the letters on the remote control, ie to 3 sockets to connect different, is used to set 3 different codes, Dose 1 = A, 2 = B Dose, Dose 3 = C. To 2 cans off simultaneously on and off (for example, 2 lamps in the room), they are put in 2 radio controlled doses the same letters (1 = A, 2 = A, 3 = B), which works flawlessly (which many other sets can not).
Attention! This set the switching capacity of 1000 watts per socket. When in doubt, look in advance.
Trouble-free and so far without any life of its own - as it should be and so far only has this set my expectations met. Price / performance top.