Forum Thread

Is it possible to use splitter with Comcast adapter?

I Love A Deal 2,109 851 January 25, 2011 at 09:02 PM
Is it possible to use splitter with Comcast adapter?
Comcast says doing that will interfere with the picture. But they could be
saying that to make more money with installation of additional cable in a
second room. Interested in finding out if anyone knows if this is true. If so,
do I have any other options?

Fyi, have basic cable.

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#2
Quote from I Love A Deal View Post :
Is it possible to use splitter with Comcast adapter?
Comcast says doing that will interfere with the picture. But they could be
saying that to make more money with installation of additional cable in a
second room. Interested in finding out if anyone knows if this is true. If so,
do I have any other options?
Comcast Adapter?

I added a cable splitter to my dedicated internet line to my modem. Doing a bandwidth test before and after i didn't notice any change and then hooked up my DVR to the other line to our 52" lcd and the picture looks just as good as before.
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#3
Quote from yotafan View Post :
Comcast Adapter?

I added a cable splitter to my dedicated internet line to my modem. Doing a bandwidth test before and after i didn't notice any change and then hooked up my DVR to the other line to our 52" lcd and the picture looks just as good as before.

the digital transport adapter. Don't have a big cable box, just the small box. Is this the same as what you used?
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#4
Quote from yotafan View Post :
Comcast Adapter?

I added a cable splitter to my dedicated internet line to my modem. Doing a bandwidth test before and after i didn't notice any change and then hooked up my DVR to the other line to our 52" lcd and the picture looks just as good as before.

Before I had the adapter (don't have any other cable box), I had an a splitter to connect to the tv in two rooms. But now with the digital transport adapter, I was told that the cable from the wall and the tv need to go into the back of the box. The person from Comcast told me that having a splitter would interfere with the picture. If that is not true, how would I set up the splitter with the cables and the box? One of the cables would need to go into another room.
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#5
You can have a splitter between the wall and adapter to run cable to another room. But that will probably require another DTA.

You can't have one after the adapter.
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#6
Still confused about what this "DTA" does - is it just a comcrap rebadge of a wider-spectrum splitter? I wouldn't put it past them.
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#7
A splitter is cheap, just buy one and see. I don't think it will have any issues. You get a 3-5db loss with a standard splitter per port. So split it twice, and you have a 6db-10db loss. You will usually only see the results of this with your Internet service and not the TV signal. I think you need a signal of around 11-15 to maintain QAM lock. An unsplit cable should be close to 20 I think. It's been a long time!

Comcast usually includes free installation for up to 3 TVs on your service. Do you plug the Comcast cable directly into the TV or do you use a Comcast supplied tuner box? Also you do not have to use Comcast to run your cables in the house. You can do it yourself or pay someone else to do it.
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#8
Quote from slipgate View Post :
A splitter is cheap, just buy one and see. I don't think it will have any issues. You get a 3-5db loss with a standard splitter per port. So split it twice, and you have a 6db-10db loss. You will usually only see the results of this with your Internet service and not the TV signal. I think you need a signal of around 11-15 to maintain QAM lock. An unsplit cable should be close to 20 I think. It's been a long time!

Comcast usually includes free installation for up to 3 TVs on your service. Do you plug the Comcast cable directly into the TV or do you use a Comcast supplied tuner box? Also you do not have to use Comcast to run your cables in the house. You can do it yourself or pay someone else to do it.

With the adapter the comcast cable goes into the box and the cable from the tv goes into the box. Thanks for the info. re the cables. For now, I'm not able to add permanent cable which is why I'm trying to come up with a way to transfer signal from one tv to another.

What has really suprised me is that I thought we already made the "digital transition" so I'm not sure why the box is now needed. However, I have noticed that I now have more channels though no special services like HBO.
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Last edited by I Love A Deal January 26, 2011 at 04:56 AM

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#9
The "digital transition" affected how signals were broadcast over the airways. It had no affect on cable, fios or sattelite tv transmission to the house. Comcast wants you to use their box since you have access to more programming choices (as in pay choices) than you would with just the TV tuner.

You could plug their cable directly into your TV and you should get a lot (most) of the channels that you get with the box. FIOS is a little different and you end up not getting many channels at all without the FIOS box.

To get the signal from one TV to another without using a cable will be almost impossible. You can do a wireless signal transmitter from TV1 to TV2 but you will be stuck with whatever channel you set it for on TV1. If you can run a cable around the baseboard, that is your best bet. If this isn't possible, your choices are very limited. Here is one product I found that will do most of what you want - http://www.aitech.com/products/wi...abletv.htm.
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#10
Quote from slipgate View Post :
The "digital transition" affected how signals were broadcast over the airways. It had no affect on cable, fios or sattelite tv transmission to the house. Comcast wants you to use their box since you have access to more programming choices (as in pay choices) than you would with just the TV tuner.

You could plug their cable directly into your TV and you should get a lot (most) of the channels that you get with the box. FIOS is a little different and you end up not getting many channels at all without the FIOS box.

To get the signal from one TV to another without using a cable will be almost impossible. You can do a wireless signal transmitter from TV1 to TV2 but you will be stuck with whatever channel you set it for on TV1. If you can run a cable around the baseboard, that is your best bet. If this isn't possible, your choices are very limited. Here is one product I found that will do most of what you want - http://www.aitech.com/products/wi...abletv.htm.

Thanks. Appreciate the effort. Adding cable will most definitely be less expensive. Just need to get permission to drill the hole.
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#11
I'm really surprised that Cable modem manufactures don't include a Cable single pass through connection so that you can have Cable modem and tv connected at the same time.

Is there a brand of cable splitter that is best or just any cable splitter will do? I'm trying to avoid any loss in signal quality due to splitting.
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#12
Quote from I Love A Deal View Post :
Is it possible to use splitter with Comcast adapter?
Comcast says doing that will interfere with the picture. But they could be
saying that to make more money with installation of additional cable in a
second room. Interested in finding out if anyone knows if this is true. If so,
do I have any other options?

Fyi, have basic cable.
Is it possible? Absolutely. But then you're forced to watch the same channel on both TVs.

The DTA is just a digital->analog signal converter -- essentially a single tuner. Single tuners output single channels. If you want to watch ESPN in one room and ABC in another, you need two DTAs -- one to tune each channel.
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#13
Quote from bonkman View Post :
Is it possible? Absolutely. But then you're forced to watch the same channel on both TVs.

The DTA is just a digital->analog signal converter -- essentially a single tuner. Single tuners output single channels. If you want to watch ESPN in one room and ABC in another, you need two DTAs -- one to tune each channel.
Actually if watch in one room would not watch in the other. Just know that Comcast told me that using a splitter would interfere with picture. Was thinking that this is just their way to try to make money getting cable installed in other room. Wanted an expert opinion to help me to decide if I should invest in another cable to try to set this up. If not, would need to come up with another way to handle situation.
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#14
Quote from jbloggs View Post :
I'm really surprised that Cable modem manufactures don't include a Cable single pass through connection so that you can have Cable modem and tv connected at the same time.

Is there a brand of cable splitter that is best or just any cable splitter will do? I'm trying to avoid any loss in signal quality due to splitting.
You can get this in same room without using splitter. But this question is can a splitter be used so that can get signal off tv for second tv without interfering with pic quality.
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#15
Quote from I Love A Deal View Post :
You can get this in same room without using splitter. But this question is can a splitter be used so that can get signal off tv for second tv without interfering with pic quality.
Sorry, I didn't mean to hijack the thread. It seemed (at the time) an appropriate place to post since all the experts on the subject would be viewing it. I'll create another thread to ask my question. Thanks.
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