Split Cable

Virgil · Post by **Virgil** » Sun Feb 04, 2001 1:16 pm

Hi I'm kinda new to broadband. I use Charter Pipeline in the St. Louis area, and because of the big city congestion, I'm capped at 768kbps down and 128kbps up. After thoroughly running speed tests though, I only average 300-400 down. I heard one should get at least 80% of their line speed. I've used the patches here on speedguide and the cablenut patch. DSLreports tweak tester says I'm tweaked

Now, my cable line is split between the cable modem and the television. Is this bad? Will I notice any speed increase if I dedicate the cable line to the modem only? Thanks in advance

david24151 · Post by **david24151** » Sun Feb 04, 2001 1:23 pm

Hi, I also wondered about this question before and just tested to make sure..but my conclusion was that it did not matter if I was directly hooked in or if it was split..my caps are 3000 down and 256 up..i am split three times before it ever sees my cable modem and I hit the cap consistantly..Hope this helps..

Virgil · Post by **Virgil** » Sun Feb 04, 2001 1:29 pm

Thanks, I'm just trying to find ways to squeeze the most that I can outta my 768 kbps connection :P

Lobo · Post by **Lobo** » Sun Feb 04, 2001 2:49 pm

David how and why are you split 3 times before modem

glc1 · Post by **glc1** » Sun Feb 04, 2001 3:00 pm

Originally posted by Lobo:
David how and why are you split 3 times before modem

Depends on how your house is wired, and sometimes you have no choice. When I had cable, the leg that my cable modem was on was split thrice. A direct drop would of required over 100ft of cable.

Exzor · Post by **Exzor** » Sun Feb 04, 2001 11:24 pm

The more times your cable is split will lower the amount of signal hitting the modem which can take you below or just on the edge of treshhold set for the modem the more negative your signal level the closer to the noise floor you are which can cause retransmision of packets which lowers xfer rates the average loss of the downstream cable modem frequency (being it is around 700Mhz) is 7 db's per 100 feet when using RG-6 cable line also if your splitters are not 900 Mhz rated they wont pass the cable modem frquency also if there are alot of people on your node then all of you are sharing the 30-40 Megabytes that the 6Mhz frequency span on 700 Mhz can carry see if you can get a signal level check at the modem by your local tech support help line someone should come to your house to do this if you try a direct line (hot drop) make sure it is RG-6 exzor_atandt@yahoo.com

david24151 · Post by **david24151** » Sun Feb 04, 2001 11:58 pm

Originally posted by Lobo:
David how and why are you split 3 times before modem

Well I live in an apartment complex and we are not allowed to have the cable company put any more than one line in..so it is split at first tv(one to tv and other to bedroom..split again there one to kids tv and then split again to my tv and the computer..yep count em 3 tv's luxury..or lazy fine line I guess..

anyway it works fine for me not a moment of downtime or slowdowns..i love adelphia here..may suck some places but here it is great...

Exzor · Post by **Exzor** » Mon Feb 05, 2001 12:12 am

if you have splitts like this ... try and get your cable company to put niose mitigation filters on the legs that go to TV's .. these filters will knock out noise from bad chasis grounds on the TV's and VCR's taht route bad thru the cable because electricity takes the path of least resistance which commonly is the cable connected to the set...dont get these on the path to the cable modem it will knock out the return path and you will loose connection with your router at the headend...LED's will start to blink on the cable modem....also a good idea to home run a line to the cable modem off the first splitter...if the first splitter is a two way then get a three way and put the cable run onthe 3.5 leg of the splitter..make sure the splitter is atleast a 900Mhz splitter

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