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Splitting Cable For Digital Tv And Modem

Mossyoakglock

By Mossyoakglock
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Mossyoakglock Senior Enthusiast

Mossyoakglock

Posted
Posted

I need to split the cable line at the wall in our bonus room. We just bought the house 2 months ago and didn't realize that there was no cable outlet in the office for our cable modem and router (there is not a cable outlet in the second bedroom either). In order to get a good signal through the whole house we had to put the modem in the bonus room. We do not have a TV up there yet but we already have the box ready to go when we get the bonus room finished and a TV up there. I was planning on just putting a splitter at the wall and then running one cable to the box and the other to the modem. Or I will split the line in the attic space and then cut a new opening in the wall for another connection point.

 

Will this degrade the signal to either one?

 

Is there a better way to split the line so I can have both in the bonus room and have no signal loss to both the cable box and modem?

 

I have Comcast.

jdnoble18 Enthusiast

jdnoble18

Posted
Posted
You want your modem to come off the very first split in your line

 

He is right. Depending on the signal strength coming into your house, you may be able to get away with 2 splits away from the first drop in your house if the line coming into your bonus room is coming off of a -3.5db split instead of a -7db split. Check your splitter(s) and add up how many dbs you are losing coming into that room.

GasHog369 Senior Enthusiast

GasHog369

Posted
Posted

Wireless modem in my house is after 2 splits and there is no issues.. We do have a booster amp in the house tho which was recommended and installed for free by time warner.. Hell it should be for free, we pay enough to watch tv and surf the net :cheers:

ybsane Enthusiast

ybsane

Posted
Posted

If you type in 192.168.100.1 into your browser it will give you the Rx level in Dbmv of your Modem and your Tx Level along with your MER's of the digital QAM. Repost with what you got and I can give you an idea if the Signal is good or not.

 

I handle Network Maintenance for TWC In Charlotte NC btw..

 

 

Rob

GasHog369 Senior Enthusiast

GasHog369

Posted
Posted
If you type in 192.168.100.1 into your browser it will give you the Rx level in Dbmv of your Modem and your Tx Level along with your MER's of the digital QAM. Repost with what you got and I can give you an idea if the Signal is good or not.

 

I handle Network Maintenance for TWC In Charlotte NC btw..

 

 

Rob

 

 

I dont see any of those abbreviations, lol

 

But heres what i see in status

 

RF Parameters

Downstream

Freq/Power: 711.000 MHz -4 dBmV

Signal to Noise Ratio: 38 dB

Modulation: QAM256

Upstream

Freq/Power: 38.000 MHz 56 dBmV

Channel Type: DOCSIS 1.x (TDMA)

Symbol Rate: 2560 kSym/sec

Modulation: QAM16

 

 

Then it says my LAN speed is 100 (full)

 

 

 

 

My sister works in one of the buffalo ny offices in customer service also..

ybsane Enthusiast

ybsane

Posted
Posted
If you type in 192.168.100.1 into your browser it will give you the Rx level in Dbmv of your Modem and your Tx Level along with your MER's of the digital QAM. Repost with what you got and I can give you an idea if the Signal is good or not.

 

I handle Network Maintenance for TWC In Charlotte NC btw..

 

 

Rob

 

 

I dont see any of those abbreviations, lol

 

But heres what i see in status

 

RF Parameters

Downstream

Freq/Power: 711.000 MHz -4 dBmV

Signal to Noise Ratio: 38 dB

Modulation: QAM256

Upstream

Freq/Power: 38.000 MHz 56 dBmV

Channel Type: DOCSIS 1.x (TDMA)

Symbol Rate: 2560 kSym/sec

Modulation: QAM16

 

 

Then it says my LAN speed is 100 (full)

 

 

 

 

My sister works in one of the buffalo ny offices in customer service also..

 

 

 

Your Forward level is -4dbmv with a 38 MER..(Good) Transmit level is 56dbmv..(maxed out) don't split this anymore. The return won't report back to the CMTS is the Hub/Head-End.

 

Adelphia ran the Buffalo system in the old days, and Empire Sports with the Rigas family owned that too...

We got treated better by them also...Today it just being a number and generating numbers....:P

 

Rob

GasHog369 Senior Enthusiast

GasHog369

Posted
Posted
If you type in 192.168.100.1 into your browser it will give you the Rx level in Dbmv of your Modem and your Tx Level along with your MER's of the digital QAM. Repost with what you got and I can give you an idea if the Signal is good or not.

 

I handle Network Maintenance for TWC In Charlotte NC btw..

 

 

Rob

 

 

I dont see any of those abbreviations, lol

 

But heres what i see in status

 

RF Parameters

Downstream

Freq/Power: 711.000 MHz -4 dBmV

Signal to Noise Ratio: 38 dB

Modulation: QAM256

Upstream

Freq/Power: 38.000 MHz 56 dBmV

Channel Type: DOCSIS 1.x (TDMA)

Symbol Rate: 2560 kSym/sec

Modulation: QAM16

 

 

Then it says my LAN speed is 100 (full)

 

 

 

 

My sister works in one of the buffalo ny offices in customer service also..

 

 

 

Your Forward level is -4dbmv with a 38 MER..(Good) Transmit level is 56dbmv..(maxed out) don't split this anymore. The return won't report back to the CMTS is the Hub/Head-End.

 

Adelphia ran the Buffalo system in the old days, and Empire Sports with the Rigas family owned that too...

We got treated better by them also...Today it just being a number and generating numbers....:lol:

 

Rob

 

 

 

Thanx rob, i forgot about this.

 

So the transmit level is upload speed i take it? When you say dont split anymore , does that mean off of the line that coming to my room? Or for the whole house?

 

I miss the back in the days when adelphia ran it.. Mainly because it as a hell of alot cheaper. lol

Although from what i hear, TW treats employees good with pricing. Practically free except for addon stuff .

Mossyoakglock Senior Enthusiast

Mossyoakglock

Posted
  • Author
Posted

Got it split and have not noticed any drop in speed or picture quality. I still haven't re-routed the line but plan on doing that today.

 

So that brings me to my next question. Would you split the line in the wall and get one of the dual connector plates (http://www.homedepot.com/h_d1/N-5yc1v/R-202699692/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053) or use a single connector and split it after?

 

I thinking that the dual connector would look cleaner once it's installed but can't decide. Are they an pros or cons for either one?

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