Still use Cable modem with DirecTV?

[techstar25]

I having DirecTV installed this weekend. 1 HD DVR, 1 Standard receiver.
I currently have the cable modem from Brighthouse utilizing the coax coming into my house from outside (and I'd prefer to keep this setup).
I checked out the install faq which says this "Make sure they install 4 new RG-6 wires of up to 125’ for free to upgrade wires and connectors."
Is that all I need to know? Is it normal for them to run new wires? Will there be a fee for him to run it?
I'm just afraid he'll come in and say I HAVE TO disconnect the cable modem so he can use the existing RG6.

[Mike728]

No, he'll run all new cables. You'll be fine.

[RobertE]

I having DirecTV installed this weekend. 1 HD DVR, 1 Standard receiver.
I currently have the cable modem from Brighthouse utilizing the coax coming into my house from outside (and I'd prefer to keep this setup).
I checked out the install faq which says this "Make sure they install 4 new RG-6 wires of up to 125’ for free to upgrade wires and connectors."
Is that all I need to know? Is it normal for them to run new wires? Will there be a fee for him to run it?
I'm just afraid he'll come in and say I HAVE TO disconnect the cable modem so he can use the existing RG6.

Just let him know before he starts that you have a cable modem. If possible, so him where its at and where the line runs to.

[bonscott87]

Sure, they just can't use the same cable.

[carl6]

Definately talk with the installer before he starts work, and make sure you both agree on what he is going to do and how he is going to do it, including not re-using the coax the cable modem uses.

Carl

[gulfwarvet]

i'm just curious if you could diplex the cable modem/sat?

[carl6]

i'm just curious if you could diplex the cable modem/sat?

Maybe, but not recommended.

If it is an SD only installation, then you probably could. If it is an HD installation then the only way you could get away with trying to diplex is by "cheating" and moving the BBC to the far side of the diplexing. There has been a lot of discussion about diplexing OTA with the new HD, cable modem would be the same as far as the technicalities.

But I think you will be happier overall (more reliable, fewer possibilities for problems, etc.) if you keep the cable modem on it's own dedicated line.

Carl

[glennb]

i'm just curious if you could diplex the cable modem/sat?

No.

[TigersFanJJ]

No.

Most cable modems have no issues at all when diplexed with satellite. However, some do have issues. So it can be done, it's just not recommended.

[TigersFanJJ]

Maybe, but not recommended.

If it is an SD only installation, then you probably could. If it is an HD installation then the only way you could get away with trying to diplex is by "cheating" and moving the BBC to the far side of the diplexing. There has been a lot of discussion about diplexing OTA with the new HD, cable modem would be the same as far as the technicalities.

But I think you will be happier overall (more reliable, fewer possibilities for problems, etc.) if you keep the cable modem on it's own dedicated line.

Carl

Just to clarify a little. On an install like the OP (1 hd/dvr and 1 standard receiver), the cable line could be diplexed with the line going to the standard receiver but not the hd/dvr without moving the bbc.

[d max82]

To the OP: Yes make sure sure he runs all new lines for the dish setup.

To everyone else talking about diplexing: In this case the OP has cable modem service but apparently no cable television service. All revisions of Docsis cable modems run at approximately 50MHz, well below the lower bound of the KA-low band range (250MHz). So the OP could "diplex" the cable modem signal in, but would use 5-2000MHz splitters w/ power pass on only one port.

The cable company will have filters at the drop to prevent the higher frequencies from passing to prevent any televisions in the house from picking up the unpaid for.