Re: Modulated Channel Interference

What happens if you have the modulator only (TV also, of course) 
connected to the splitter and then connect the LPF without the cable 
attached?  Have you tried swapping legs on the splitter?  Channel Plus 
sells a DC-9.  It would be better if you used that to combine your 
signals rather than a 2-way splitter.

Out of curiosity, how much did you pay for that splitter and LPF?



CIAO!

Ed Nielsen
CENCOM
http://www.cencom94.com

Barclay Berger wrote:

> This is the exact configuration and orientation and products I'm using.
> Modulator set to channel 94 which gave me the best quality.  To me it
> doesn't seem like the LPF is working right?  Frustrating.  Could it be my
> cheap dayton modulator, I tried a 1ch radio shack with same results.  I even
> ran a new cable from the combiner to one tv to see if that helped
>
> Thanks
>
> "Ed Nielsen" <[EMAIL PROTECTED]> wrote in message
> news:[EMAIL PROTECTED]
>
> > You have it setup like this?:
> >
> >                 OUT    IN
> > ---CATV---[LPF]--(DC-12)------TV Distribution
> >                   /TAP
> >     [Modulator]--/
> >
> > The LPF should be no less than 550MHz.  With it connected as such, the
> > modulator is connected directly to the combiner.  If you have your
> > modulator set to channel 74 and there is a digitally modulated carrier
> > on channel 74, you're gonna have problems.  Utilizing a low pass filter
> > that notches everything above 600MHz, notches out anything that might be
> > coming from the cable company above that 600MHz (ch 86).  I have 4
> > channels combined that way with no problems at all.
> >
> >
> > CIAO!
> > Ed Nielsen
> > CENCOM
> > http://www.cencom94.com
> >
> >
> > Barclay Berger wrote:
> >
> > > I recently bought a 3-channel modulator and installed it on my home
>
> cable
>
> > > system.  I found out that I was getting serious noise due to not having
>
> a
>
> > > low pass filter on the line so I purchased on of those.  Still not real
> > > happy with the results.  Now my channels 2-6, 16-21 are fuzzy and
>
> probably a
>
> > > few others.  The modulated channel isn't even that clear.  If I just
>
> hook
>
> > > the modulator into the combiner the modulated channel is very clear. I
> > > thought purchasing the low pass filter would solve this but it seems to
>
> have
>
> > > created a few other problems.  I'm thinking of scrapping everything and
> > > returning, getting expensive.  Any suggestions before I do?
> > >
> > > Thanks
> > >
> > > Barclay