[GRLUG] Slightly OT - Charter Service

Bruce Smith blubdog at gmail.com
Thu Sep 1 22:40:31 EDT 2011


I have my Charter cable split into six connections and it works fine
(knock wood).  2xTV's, HD-DVR, 2xTuner-MythTV, and the Cable Modem.
YMMV.  :-)

I don't know if it helps, but I have my cable modem off the first
2xSplitter, and the other cable from that first splitter splits again
(and again, and again...) to all the TV stuff.

 - BS


On Thu, Sep 1, 2011 at 20:52, Bob Kline <bob.kline at gmail.com> wrote:
>
>
> On Thu, Sep 1, 2011 at 8:44 PM, Mike Williams <knightperson at zuzax.com>
> wrote:
>>
>> On 09/01/2011 08:38 PM, L. V. Lammert wrote:
>>>
>>> On Thu, 1 Sep 2011, Mike Williams wrote:
>>>
>>>> Unless things have improved dramatically, you might have problems with
>>>> that many cable drops.
>>>>
>>> Ahh, .. that was the original question - HOW does one find a distribution
>>> amplifier that WILL work.
>>>
>>>        Lee
>>>
>> I'm not entirely sure you can. If the problem is signal to noise ratio
>> rather than sheer signal strength, then an analog amplifier will not help.
>> You'll amplify the noise just as much as the signal and the ratio won't
>> change. Of course, if the "amplifier" is technically more of a "digital
>> repeater" then you might be in better shape. I'm not sure anyone but Comcast
>> could provide such a thing, though. Some of the channels on DOCSIS cable
>> modems are used for upstream data, some are TV, and some are downstream
>> Internet. Unless the repeater knows which is which, it's likely to cause
>> problems. I know almost nothing about DOCSIS, so it's possible that there is
>> some kind of autoconfiguration channel that the hardware can listen to.
>>
>
> Seems right.  Each amplifier adds noise,
> under the best of conditions.  The cable
> system places amplifiers  so as to optimise
> S/N.
> But I'd repeat, if you don't have enough signal,
> call Comcast.  A tech comes out with a gizmo
> and measures the signal, noise, and other things
> on the spot.  Too hot a signal and he adds a
> splitter, for example, with one side open.  Too
> weak and he has to climb a pole somewhere.
> It's not worth beating yourself over unless you
> have the equipment.
>    -- Bob
>
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