Bought one today 2.4Ghz model so we can have the telly in a different room to the sky box without having to re-wire the whole house.

Sadly too much interference on each channel – even turning off the wi-fi and phone.

Would a 5.8Ghz sender get round this? Anyone got any real-world experience of these?

we sell these. and have loads of problems with them.
lots of things conflict with them.
wall thickness, tin foil insulation stuff, microwaves.

hard wired is a lot better.

Wireless senders are very hit-and-miss. Really, the only way is wired.

Got a 5.8 from maplins that works perfectly. I’ll find a link later

Nikkai 5.8ghz video sender – Maplins

As promised. Works great in our house, but it is only from one upstairs room to another – not tried up/down. No interference whatsoever. I bought B grade when the A grade was full price and there were no signs of any issues