> >Not sure why you need the line amp and power injector there, but one
> >way to improve the modulated video is to use a "low pass filter" to
> >clean up the channels that you want to put your own signal on. They
> >are available in various frequencies.
> >I purchased a low pass filter that cleans out all channels above 80.
> >Once I cleaned out those frequencies, my modulated channels were much
> >clearer. I started my modulated channels on 100 (just an easy number
> >to remember). It is also recommended that you leave at least one
> >channel in between modulated channels, so my modulated channels are
> >100, 102, 104, etc. I then just configured my TV's to skip channels
> >101, 103, 105, etc.
> I started with channel 70. All of my TVs and VCRs can tune channels
> up to 125, but tuning 100-125 is more difficult. 70 is still far away
> from the cable here, which just goes up to 42. They (the cable
> company) have started digital service and I don't know what channel(s)
> are being used for that, but my modulated channels (70,72,74,76) are
> still working OK.
> >One source for low pass filters is here -
> >>OK, I got my setup working correctly. I am now transmitting to
> >>channel 85 (have tried 125 also). If I go straight through
> >>without plugging my cable company's input into the combiner, my
> >>XCam picture is VERY crisp. As soon as the cable is added, the
> >>XCam picture gets quite fuzzy. Still good enough to make out the
> >>picture, but fuzzy enough to be aggravating.
> >>Here is a quick diagram on how I have things wired:
> >>http://www.virtuallysold.net/Cable/cable.jpg . The combiner and
> >>splitter are both housed in my cable box on the outside of the
> >>Is there anything out of place? Is there anything I can do to
> >>improve my picture quality?
> >>Thanks for all of the help!!!
> >>> YES, it can. I just bought one too, AND have it transmitting
> >>> on CA125
> >>> The problem you MAY be having is Amplifiers, Splitters, DC pwr
> >>> on Line.
> >>> IF you are using a line amp. One which is powered through the
> >>> cable
> >>> THAT WILL be a problem.
> >>> Low quality splitters are also a problem. The Cable company
> >>> guys have
> >>> that is BETTER than you can buy. And where it will really
> >>> count, is up there in the Channel 125 area.
> >>> Set up THIS way: All the tv's to a splitter, at the INPUT
> >>> side use
> >>> another splitter and inject the modulator there. This is AFTER
> >>> any amplifier. If you are using an injection pwr supply.
> >>> MODIFY the setup so the the injector is BEFORE the modulators
> >>> splitter, OR better yet, DONT
> >>> that type, use a normal line amp. Again, the cable guys HERE
> >>> use
> >>> Atlanta goodies. And HERE, they put a amp in gratis :-)
> >>> BTW, I got 1 second little pops due to a injector setup.
> >>> Luckily, the amp they supplied also has a direct input for power
> >>> AT THE AMP. I simply removed the injector setup at my TV, went
> >>> into the attic and plugged the powersupply in up there, then ran
> >>> the cable to the pwr in. TADA, nice picture!
> >>> > I picked up the 15-1243 UHF/Cable RF Modulator from Radio
> >>> > Shack for $50.
> >>> Is
> >>> > this one that I can use to transmit video onto a cable channel
> >>> my
> >>> > house?
> >>> > The guy at RadioShack claimed I could, but I have not had luck
> >>> > with it
> >>> yet.
> >>> > Only tried twice due to bad weather...
> >>> > If yes, could someone please provide info on the setup?
> >>> > If it can't, can anyone recommend a cheap one that can? I
> >>> > only want to trasmit video from my front door cam to the tvs
> >>> > throughout the house. Single input, output to cable interface
> >>> > box outside house... AT&T cable
> >>> if
> >>> > that matters...
> >>> > Thanks!
> >>> > KS
> Mark Lloyd