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Topic # 74927 11-Jan-2011 00:38
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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?


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  Reply # 426195 11-Jan-2011 16:45
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Can you adjust the modulators to use channels a bit further away from the TV signals? Or feed the cameras directly to some kind of setop box that allows switching between TV and camera feeds?

Qualified in business, certified in fibre, stuck in copper, have to keep going  ^_^

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  Reply # 426267 11-Jan-2011 19:31
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Not really, there is basic non stop noise between about ch 29 and the top of the band, there is a few that are clear, but many channels will crossmodulate ontop of the digital channels.

Wasnt a problem when using a seperate digital box, but using the inbuilt to a tv, there is no real way to put bunnyears on the digital tuner and use an input for the analog like with external digital boxes.


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