Re: [PLUG] cable modem and a distribution amp

[gyoza@comcast.net]

I don't know.  I hate it when I don't have full access to my own equipment.

I put the terminators on my unused amp outputs.  No change.  Although, 
using the loose end of the cable connected to the TV as a signal 
sniffer, I found that the terminators do cap off the signal if only 
because they are metal caps.  Also, I can detect a stronger signal 
radiating from the older RG-59 cable compared to the newer RG-6 cable.  
(Expected.)  The RG-59 also radiates from the twist on connector while 
the RG-6's connector doesn't radiate much.  I guess to the degree the 
cables radiate a signal they are also equally susceptible to 
interference.  Unfortunately, it seems like more of the interference is 
generated or amplified by the amp!  heh


TuskenTower wrote:
> My motorola used to work on that IP (meaning I go to the IP and page
> loads).  Now it kicks me straight out.  The page loads, and then
> redirects me off with an error page.  I have to stop the page load to
> see everything.  Do you know if Scamcast remotely upgraded them?
>
> thanks,
> Amul
>
> On 6/11/07, gyoza@comcast.net <gyoza@comcast.net> wrote:
> > Motorola modems.  192.168.100.1
> >
> > John Sladek wrote:
> > > Just Curious, what are you guys using to mesure these levels? and what
> > > channel are you looking @ them on?
> > >
> > > -John Sladek
> > >
> > > ----- Original Message ----- From: <gyoza@comcast.net>
> > > To: "Philadelphia Linux User's Group Discussion List"
> > > <plug@lists.phillylinux.org>
> > > Sent: Monday, June 11, 2007 11:18 AM
> > > Subject: [PLUG] cable modem and a distribution amp
> > >
> > >
> > >> Has anyone experienced any benefit or problem after adding a cable
> > >> distribution amp?  One thing I'm curious about is how the upstream
> > >> signal is affected.  (I can't see what the upstream power level or
> > >> noise looks like from the outside.) Everything seems normal so far.
> > >>
> > >> (I added the amp because I plan to split the cable three ways soon.
> > >> Not likely, but possibly, four ways in the future.)
> > >>
> > >> Below are the readings I took from my cable modem.
> > >>
> > >> Connection    Signal/Noise (dB)    Downstream (dBmV)    Upstream 
> > (dBmV)
> > >>
> > >> direct         38     2    43
> > >> 2-way split    38    -3    45
> > >> 4-way amp      34    11    45
> > >>
> > >> 
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