Re: Modulation and Digital Cable with Comcast

[SecurityPro <securitypro@xxxxxxxxxxxxx>]

Connect a lowpass filter in line with the output of the modulator.  Be
sure the filter cust-off above the highest output of the modulator.

I've had many installations with different modulators where harmonics
from the modulator have trashed digital channels and now filter the
modulator output on all installations.


On Fri, 11 Mar 2005 14:18:08 -0600, <tom> wrote:

>I have Comcast Digital Cable for my home. The box is a Motorola  DCT-2000.
>I also have a Channel Plus 5445 (4-channel modulator)
>
>I am able to inject 4 channels into my home signal but I have a few
>questions / problems.
>
>Depending on what channel I inject to ( 77, 79, 81, 83), I lose some
>of my digital channels.  The channel displays something similar to ,
>"signal unavailable should be available soon".  If I disconnect my
>modulator the channels appear fine.  If I choose different channels to
>inject to, I lose different digital channels.
>
>How can I find which channels are available for creating modulated channels?
>Also, I'm unclear on Low Pass Filters
>The ChannelPlus Low Pass Filter  LPF-750 passes CATV channels 2 to 116
>Would this work?  Does Comcast use any channels higher than 116?
>
>thanks,
>tom
>