Guess its a network of sorts, so here it goes but move it if you think another forum is more appropriate.

Anyway. I have several modulators on cameras and sat boxes combined into the antenna here so I can get them on all tvs.

Recently there seems to have been a lot of noise coming in, in bursts over the lower channels, and there is constant noise over some of the upper ones.

So ideally I need a band stop filter to clear up some of the hyperband or UHF band to cleanly put the signals onto, but the few places I have called about it are either clueless or want to sell $1000's of channelized amplifiers like you would use for a motel or apartment complex, whereas I really just need to cut the noise, as its all pretty well equalized with what I have and there are no really long runs or taps etc to worry about.

I see places selling some online, but they are usually US based so wrong channel numbers and would be a pain with their shipping, and I have had no joy finding a EU/UK/AU supplier of them with a quick google.

Anyone know a place that sells them?