I have one of these gizmos from Maplin that allows you to turn on a 13A socket using a remote control box. It works quite well but the range is optimistic at
25 yards :-)Just wondered if there is some simple tweak I can do to up the xmitter power just a teensie-weensie amount to get a little extra range?
Xmitter is 435 Mhz and looking inside the box there is a 10 turn coil antenna. I tried putting a few cm of thin copper wire in and around it and managed to detune it quite well ;-) (well you never know). I thought maybe a slight (0.5v?)supply volatge increase may do it but that'd need an extra battery.
I'm guessing the rx cicuits in each of the 13A sockets is even more difficult to "improve"? Is fun trying anyway.
ps Please, no warning about the mains - I am aware of that risk, thanks.