I will be installing a basic network AVR in a few days. There is a good chance I will have to move the modem to the entertainment center. No good way to run a dedicated RG6 from the demarc box. So...it looks like I will have to split the existing RG to the cable box. I have done this before, but with splitters borrowed from the existing cable system. This time, I will need to order. Any suggestions as to what specs I should require? (Yes, the AVR has a wi-fi antenna, but I have not had good results with this in the past.) Thanks!

5MHz to 1,000MHz(or more) would be ideal.

This is actually what we use. [Link: extreme-broadband.com]

It would be best if you plugged the modem into the wall outlet with no splitter. Open up the modem's menu, 10.10.0.1 or 192.168.0.1, and check your upstream and downstream. Down shall be -8db to +8db. Up shall be less than 42db, only saying that because the 2-way will make it 46db, then if you have another along with cable db, it could be 51db.

The cable db "loss" along with splitter "loss" is actually a gain for upstream.

KOT

Modem if in bridge mode could be 192.168.100.1 as well. You're definitely going to want to verify that the signal levels can accept a splitter, otherwise you'll screw up their internet and get all the blame!

Wherever the cable box and the modem are now, don't they each have the output of a splitter? It sounds like you're moving this splitter from the demarc to the entertainment center, unless there are more splitter outputs that you're not mentioning.

PatMac,

This "modem" is really a wireless router. If you move the wireless router, you'll be able to connect the AVR directly to a network port on the router, but how will this move effect WiFi coverage for the house?

Interesting specs. I will investigate if I have enough time left. The few jobs where I was "forced" to try the splitter, it worked....luckily. The customer was willing to do the trial and error to avoid the drama to get a dedicated RG6 ran to the entertainment center. Thanks!

I agree. The few jobs where I was "forced" to try the splitter, it worked....luckily. The customer was willing to do the trial and error to avoid the drama to get a dedicated RG6 ran to the entertainment center. Thanks!

No...the modem will likely need to be moved from the office on the main level to the entertainment center in the basement. Since there is no way to run a dedicated RG6 from the demarc to the entertainment center, I may be "forced" to try to use the splitter. 1 output to the Modem, the other output to the cable box. I know, it's risky, but it's easy to revert back to the original configuration if something doesn't work.

I am not a fan of the wireless routers that Comcast has built in with their modems. Since it will likely have to be moved to the basement, I will likely have to upgrade their router and put the modem into bridge mode.

Why not have the client, or you, purchase their own modem? This is so they don't have to pay a monthly rental to the modem.

This will also give you the flexibility of which router you want for the system with having to put the modem in bridge mode and such.

Besides, as you should know, putting a wifi in the basement is a bad idea.

KOT

I'm with King of typos, moving WiFi to the basement is not a good idea. I would work really hard at running a wire. A network cable to the basement would be my first choice. If, for whatever reason, this is not practical, I would use EoP to get a network connection to the AVR. Generally, I avoid EoP, but every once in a while it is the winner.

King,
I agree about the modem purchase, but they have Comcast phone service. No can do. The good news: 1 call to Comcast and they put their modem/router into bridge mode. Then it transforms into a modem. At that point, you can use any router you want. The basement placement is not as bad as it sounds. I have a stairwell closet behind the entertainment center. I can mount the router all the way to the ceiling (of the basement). It is also a walkout basement...to the pool area...big advantage.
Buzz,
No way to get a hardwire to basement. I am considering Moca. I have my doubts about the insertion loss, though.
Thanks!

PatMac,

EoP has its own set of issues, but with EoP there is no insertion loss in the coax.

Have you actually tried the AVR in WiFi mode?

If you poke around you can find an Arris TM822G cable modem that includes telephone.

MOCA boxes introduce attenuation too.

You can put it into bridge mode yourself. Just go to the modem's set up, usually 10.0.0.1 for Comcast Arris modem's. And just look for the bridge mode settings.

KOT