cable line splitter = slow speed???

[WoofyJr]

Does the three way splitter cable reduces internet or download speed? My friend uses three way splitter to add one cable to T.V. in the bedroom. I told him that I supsect the internet is so slow due to three way splitter. His internet is so damn slow.. He doesnt believe me so I m trying to figure what's wrong...

The cable modem is toshibia (i forgot his specific nbr) and he uses Cox high speed internet....

Any feedback would be nice... thanks

 

[Oaf357]

If the splitter was given to him by Cox then it shouldn't be an issue.

If he put it in himself then he needs to make sure that the splitter is rated at 1000 MHz or higher. It should say it somewhere on it if it is.

 

[WoofyJr]

Hmm, i d better check that one...

 

[JackMDS]

What make sense the most is to take the Modem, and the Computer, and temporary put them at the first split, and see if you get better Internet

As a rule of thumb is if at the same connection you get Good Clean TV (i.e. good nice picture) it is good enough for the Internet. It is not a situation that you get more speed if you have bigger signal. The signal has to be within a certain range. If the signal significantly bellow the range or and noisy you get slower to none Internet connection.

 

[Pauli]

Make sure he is using good quality cables from the splitter to the connected devices and that they are screwed on good and tight. Don't use those "push-on" type of cables.

 

[Oaf357]

Originally posted by: Pauli
Make sure he is using good quality cables from the splitter to the connected devices and that they are screwed on good and tight. Don't use those "push-on" type of cables.

Yeah, those blow.

 

[WoofyJr]

hmm, i asked my friend to check the nbr of mhz on the splitter and it says " 5-1000 mhz" I still have to see it myself and do the things u suggested. I also will test it myself without the t.v. to see the difference... His computer kept crashing, it might be not related to the cable, it's the computer. I am not sure yet.


Thanks...

 

[Spawndude]

Definitely possible.

Yes, the specs on the splitter are important. Just any ole splitter you pick up at Walmart may not work.

I spent 4 hours last weekend troubleshooting a slow cable modem internet connection.

Turned out the splitter had gone bad.

I still got a good picture on the TV but my connection speed was like dial-up.

My cable company gave me the two way splitter that went bad, and they replaced it.

I dont know if the cable companies provide anything more than a two way splitter.

If not, then from the splitter provided by the cable company send one to the modem and one to a second splitter.

 

[viper118]

I have a 3 way splitter. One to my computer and 2 to the tv's. I notice no slowdown when I do it this way. I bought my splitter from the local dollar store for $1 and I use normal cables. Nothing special about them.

I use to run my cable connection by itself for a year, so i know how the speeds are suppose to be like. Now, there's pretty much no noticable slowdown. Even when all the tv's are on, there's no performance slowdown from my connection.

 

[Spawndude]

Any splitter may work fine for many years but when one goes bad it definitely can cause a slowdown in your connection speed.

When they go bad they dont just stop working, you may still get a perfectly fine video image but your internet connection is degraded.

 

[UncleWai]

I am having this problem now.
What determines a good splitter and where can I get one?
My comcast tech came in a use something to test the connection strength.
He had something about normal is 48, and then when the splitter is put, it jumped to 5x.
He said the lower the better.
Right now I have to run a tv cable through the hall to get to my bro's room.

 

[ScottMac]

Have him change the three-way splitter for a four-way and cap the unused port. Because of the way they do it, a three way is much less efficent than a four-way.

At each output, there'll be an indication of how much loss each port experiences, relative to the input. The markings will be something like "-7db" (maybe a higher number).

Overall, what would work better, IMO, would be to put in a two-way split up front: port 1 goes to the cable modem, port b goes to another splitter (maybe a four-way w/ 1 capped) that feeds the TVs. If the TV signals look a little noisy/snowy, then get a small distribution amp (~6- 9db, give or take ... DO NOT use a 20db amp there - too much signsl looks worse than not enough).

That should give the modem enough of a signal to work well, and allow you to compensate the TVs without negatively impacting the cable modem.

FWIW

Scott

 

[UncleWai]

I guess I might do that well I buy myself a couple pci wireless cards and put the cable modem in the living room.

Does signal booster work in my case? Or a Directional coupler, uses the little loss one to the cable modem and the tap to the tv?

My room's jack is splitted 3.5db evenly from the living room's.
Now when I add another 3.5db even splitter in my room, my cable modem doesn't work properly.

Currently I am thinking getting one of these:
RadioShack In-Line Signal Amplifier

Monster Cable Two GHz Low-Loss RF Splitters

 

[deepinya]

They do make special "Broadband" splitters for TV and cable modem in the same room. The cable guy came over and swapped out all my splitters for these special ones.

The great thing about my guy was after doing all that I asked him to run a line from the main line (outside) directly to my modem. So, he spliced it outside and ran two wires. One provides cable tv to all the tvs in the house while the other goes through my attic and right to my cable modem.....unsplit and uncut.

I can tell you that it made a night and day difference in my ping and all around ping stability.

Best 20 bux I ever spent!

 

[mboy]

Why not use a 2way splitter to split where the line comes into the house, have one split go right to the modem, then have the 2nd split go to a 3 or 4 way splitter and use that to send them to the TV sets?
This way, u get less of a split before the cable modem itself.

 

[philippis]

It is a classic signal/noise ratio problem given in digital communication class. The speed depends on the signal/noise ratio. Any splitter used will lower down the signal noise ratio and consequently lower down your
speed. However, if the internet is very slow, the problem may be interferrence caused by reflection. For example, an unterminated connector will reflect the signal back due to impedence mismatch. 20 years ago, the first generation ethernet used coaxial line as the media. At that time, we usually put a 50 ohm match load if the port was not used.