JP Vossen on 23 Sep 2007 07:56:20 -0000


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[PLUG] OT: CATV splitter


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