--- Greg Stark <[EMAIL PROTECTED]> wrote:
> > Jack Perveiler <[EMAIL PROTECTED]> writes: > > > 1) The herringbone comes and goes. It'll be on for maybe 30 seconds, then > off > > for 5 or 10. > > Is it worst on channels in the area of 17,18 ? > > This sounds like a pretty classic description of interference caused by other > transmissions such as pager networks. > > It indicates that the input signal is weak. You can't overcome it by boosting > the weak signal since you're also boosting the interference. You have to get > a > stronger signal higher upstream intact through to your system. > > If you have any splitters in your setup try removing all of them and wire > straight to your receiver. If that's clear then you could put the booster > *before* the splitters. You could also try replacing connectors and splitters > after that point. > > However each splitter will inevitably cause a fixed signal strength drop. (I > forget, 2.6dB?). The 500 must have one splitter built in so much of the > complaints of weak tuners might be simply that. It will necessarily have a > weaker signal. > > If you don't have any splitters but you live in an apartment building then > it's possible there's a splitter outside serving your building. You could > call > the cable company and complain about weak signal. If you're lucky they'll > come > run a new wire so that the signal is split fewer times. > > You also can look at the external connectors, sometimes they get rusty or > just > loosen and allow water in. > > Lastly, I saw a *huge* improvement when I shortened my cables. I had about > 50ft of extra cable coiled up. Wire == Antenna and coiled wires are very good > antennas. > > -- > greg I can't speak for channels 17,18... they're CSPAN2 and INSP on cable around here, and they just don't get a lot of play in my house :) Toon Disney on channel 54 is the worst I've seen. My cables are short (20 feet total, maybe), and one of my experiments involved no splitters. Underground cable -> inside grounding block -> 500. When I used the amp it was right after the grounding block. My house is about 200 feet from the curb, but they replaced it with some really beefy RG11 cable back when I was having signal strength problems on the really high channels. I've tried adding splitters (with unused taps terminated) on the path to the cable box and the tv to simulate the additional split that must be happening inside the 500 but it still looks good on the cable box and tv. Pretty wierd, I know ;) --Jack __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________ ivtv-devel mailing list [email protected] http://ivtvdriver.org/mailman/listinfo/ivtv-devel
