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Re: [PLUG] OT: CATV splitter
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A couple of things....
1) Try and have exactly as many splits as you need. There is a signal
loss of 6db (IIRC), for each split.
2) Leave the cable modem at the first split, and everything else on the
other side. The cable modem is the most sensitive to signal loss. It
should also have the shortest cable run.
3) The VCR idea will work, but quality may or may not be an issue.
4) Consider using a multi-split amp at the first split, it should help
significantly. I would go for a 4way split. Ensure the amp is labled as
"two way" or compatible with cable modems.
5) Try to cascade the splitters as little as possible after the first
split.
Later,
--Matt
On Sun, 2007-09-23 at 03:56 -0400, JP Vossen wrote:
> As you may just have seen, after Matt's MythTV Seminar on Saturday I'm
> excited about putting a MythTV setup together, but I have a question
> about CATV splitters.
>
> My existing setup is as follows (need a fixed-width font):
>
> --------+ < CATV in
> |
> [SSS]
> | |
> | +-----+ +---- [TV4]
> | | |
> [C. Modem] [SSSSS]
> | | |
> [TV 1,2,3]
>
> As far as I know, this works fine. The cable modem has never had any
> signal issues I am aware of and while the signal isn't perfect on the
> TVs (hey it's Comcast, analog, $16/mo, no set-top boxes...) it's
> acceptable to me.
>
>
> Now, when I add 2 more tuners for my MythTV back-end server, they have
> to get a signal from someplace. Based on where things physically are,
> the quick 'n' dirty solution would be to split the up-to-now "dedicated"
> cable modem line like so:
>
> --------+ < CATV in
> |
> [SSS]
> | |
> | +--...
> |
> [SSSS]
> |||
> [Modem][new tuners 1,2]
>
>
> Will I regret that?
>
>
> Another way to go might be to take the port away from the TV in my
> office, split that into the tuners, and put front-end software on a
> handy Ubuntu workstation with a wide-screen LCD. Like so:
>
> --------+ < CATV in
> |
> [SSS]
> | |
> | +-----+ +---------+
> | | | |
> [C. Modem] [SSSSS] [SSS]
> | | | | |
> [TV 1,2,3] [Tn1] [Tn2]
>
> That puts the additional front-end into my project critical path (or
> deprives me of "Headlines" on Leno on Monday nights, but requires 1 less
> split port.
>
>
> Anyone have a source for "good" splitters? (I currently have whatever
> junk I could find at the time.) So far I don't have any amps, and I've
> heard they used to mess with the cable modem sometimes. Thoughts there?
>
>
> TIA,
> JP
> ----------------------------|:::======|-------------------------------
> JP Vossen, CISSP |:::======| jp{at}jpsdomain{dot}org
> My Account, My Opinions |=========| http://www.jpsdomain.org/
> ----------------------------|=========|-------------------------------
> Microsoft has single-handedly nullified Moore's Law.
> Innate design flaws of Windows make a personal firewall, anti-virus
> and anti-malware software mandatory. The resulting software arms race
> has effectively flattened Moore's Law on hardware running Windows.
> ___________________________________________________________________________
> Philadelphia Linux Users Group -- http://www.phillylinux.org
> Announcements - http://lists.phillylinux.org/mailman/listinfo/plug-announce
> General Discussion -- http://lists.phillylinux.org/mailman/listinfo/plug
___________________________________________________________________________
Philadelphia Linux Users Group -- http://www.phillylinux.org
Announcements - http://lists.phillylinux.org/mailman/listinfo/plug-announce
General Discussion -- http://lists.phillylinux.org/mailman/listinfo/plug
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