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Borad

join:2012-06-08

Too many connections?

This is a picture of what I'm planning. There are only two splitters, but there are wall plates and right angle adapters too. The total cable length is about 100 feet, not counting the red section which is in a public hallway that I have no control over. Will there be too much signal loss? If so, is there a booster or something that I could use in the apartment that will work for the cable TV and modem?

Oh yeah, there will also be short cables from the right angle adapters to the devices.


Jabbu
Premium
join:2002-03-06
It should work, there are too many variables to say for sure.


Frank_IT
Premium
join:2003-11-01
Montreal
reply to Borad
I would suggest to remove the "right angle" adapters... with those, you have a loss of 1db on the drop..

but the the rest.. it should be ok.. but depending of the signal entering, your modem may have a low RX db..
--
Rogers - iPhone 4s 32gb


heels_fan
1.20.09 The start of Socialism
Premium
join:2003-02-07
Columbia, TN
kudos:1
reply to Borad
depending on the signal coming in, I would put your modem on one of the legs of the first two way.

Borad

join:2012-06-08

1 edit
reply to Borad
said by Frank_IT:

I would suggest to remove the "right angle" adapters

I could do that if I buy yet more electronics enclosures and mount straight extension adapters in the sides instead of using flat wall plates. I'm already buying several boxes to hide oversized holes and to keep a bending radius of over 1 1/2 inches when entering the walls without it showing and I feel like I'm the only one who'd do it. :/

said by heels_fan:

depending on the signal coming in, I would put your modem on one of the legs of the first two way.

Unfortunately, the living room has to be on the first two way and I want the master bedroom to be internet ready, but the modem is currently in the small bedroom. :/ I'll just deal with it. If the connection is clearly too slow, I'll see if Cablevision will boost my signal.


The E
Please allow me to retort
Premium
join:2002-05-26
Burnaby, BC
Reviews:
·Shaw
Why does anything "have to be on the first two way"?
Is it possible to just use a Three-way instead? That way you're always free to swap out the strong -3.5dB leg to the room that has the modem.

Home runs are always better than a bunch of splits in multiple locations.

Also, boosters (drop amps) are not a good solution. Crappy signal in, boosted, = stronger crappy signal.
--
"All opinions stated by me are solely my views and do not reflect the views of my employer, this site, or even myself depending on my level of sanity at the moment"


The E
Please allow me to retort
Premium
join:2002-05-26
Burnaby, BC
Reviews:
·Shaw
reply to Borad
Also, you're WAY over thinking this. It's cable. You don't need Quad-shield. You don't need right angle adapters in most cases.

I'd love to see some pictures of what you're doing…. all these posts for what seems to be a really small, basic rewire. (hey, I could be wrong!)
--
"All opinions stated by me are solely my views and do not reflect the views of my employer, this site, or even myself depending on my level of sanity at the moment"

Borad

join:2012-06-08
reply to The E
For a three way splitter, I'd have to buy 100 more feet of cable (in part because I already cut my current 100 feet to the length I had planned to need) and I'd have to run two parallel cables through about 30 feet of my apartment, or run one of them a different ugly way, or build custom molding for a doorway. I read something about a different type of splitter that's more expensive but doesn't weaken the signal as much. I'd look into that before using a three way.

Borad

join:2012-06-08

1 edit
reply to The E
said by The E:

You don't need Quad-shield.

I agree that it's normally not needed despite various recommendations I've seen (example), but I believe more in the six-inches-from-high-voltage rule, and I was going to be two inches away.

You don't need right angle adapters in most cases.

It would allow me to push furniture about two or three inches closer to the wall. In the small bedroom, heavy lifting would be required to eliminate the adapter, or else I'd have to move my shredder where I don't want it.

I'd love to see some pictures of what you're doing…. all these posts for what seems to be a really small, basic rewire. (hey, I could be wrong!)

These posts don't even scratch the surface of the time I've put into this. Fishing a string through a deep hollow wall from the hallway to the closet, dealing with building management, dealing with Radio Shack tools and connectors that don't seem to work with each other...I'm hoping I'll be done in a couple of weeks.


The E
Please allow me to retort
Premium
join:2002-05-26
Burnaby, BC
Reviews:
·Shaw
reply to Borad
said by Borad:

For a three way splitter, I'd have to buy 100 more feet of cable (in part because I already cut my current 100 feet to the length I had planned to need) and I'd have to run two parallel cables through about 30 feet of my apartment, or run one of them a different ugly way, or build custom molding for a doorway.

Ahh, OK, that makes sense. To answer your original question, you're only going to be down 7dB on the modem and one STB. In most cases this is perfectly acceptable. Of course, it really does depend on the quality and strength of your input. Although it's preferred to have the modem on the strongest leg, if your signal strength is sufficient you'll have no worries.

(FYI: I'm an installer for one of Canada's largest Cable/Internet/Telephone providers. We focus on our craft and pride ourselves on high quality installations. )
--
"All opinions stated by me are solely my views and do not reflect the views of my employer, this site, or even myself depending on my level of sanity at the moment"


heels_fan
1.20.09 The start of Socialism
Premium
join:2003-02-07
Columbia, TN
kudos:1
said by The E:

said by Borad:

For a three way splitter, I'd have to buy 100 more feet of cable (in part because I already cut my current 100 feet to the length I had planned to need) and I'd have to run two parallel cables through about 30 feet of my apartment, or run one of them a different ugly way, or build custom molding for a doorway.

Ahh, OK, that makes sense. To answer your original question, you're only going to be down 7dB on the modem and one STB. In most cases this is perfectly acceptable. Of course, it really does depend on the quality and strength of your input. Although it's preferred to have the modem on the strongest leg, if your signal strength is sufficient you'll have no worries.

(FYI: I'm an installer for one of Canada's largest Cable/Internet/Telephone providers. We focus on our craft and pride ourselves on high quality installations. )

That is what I said ;/
--
everyone is born ignorant. some are born stupid, others achieve stupidity and the rest have stupidity thrust upon them.


egnlsn
Premium
join:2003-09-26
Salt Lake City, UT
reply to Frank_IT
said by Frank_IT:

I would suggest to remove the "right angle" adapters... with those, you have a loss of 1db on the drop..

The 90s I use lose 0.5dB@1GHz. A little less at 750MHz.
--
CIAO!


beachintech
There's sand in my tool bag
Premium
join:2008-01-06
kudos:5
reply to Borad
Right angle adapters suck. They cause more problems than they are worth.

nrobot80

join:2012-12-05
Union City, GA
reply to Borad
You are better off buying more cable and doing a home run. Having the cable modem off the second splitter dilutes your signal both upstream and down stream. You also can't call the cable company and have them turn up the signal. The best thing to do is have the professionals do it right, you may spend some money up front but you'll save a lot of time and headache in the long run.


TheTechGuru

join:2004-03-25
TEXAS
kudos:2
Reviews:
·HughesNet Satell..
·WesTex Connect
reply to Borad
Cable modem needs to be on the first splitter, you're giving it a 7db loss right now when if installed at the first split it would only be a 3.5db loss. Always install modem at the first split, always.
--
CompTIA Network+ Certified