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Topic # 74927 11-Jan-2011 00:38 Send private message

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?




Richard rich.ms

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  Reply # 426195 11-Jan-2011 16:45 Send private message

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?




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  Reply # 426267 11-Jan-2011 19:31 Send private message

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.




Richard rich.ms

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