Sat/Cable modem through single coax?

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taxtwit

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My home office with PC does not have a coax cable outlet. I'm hoping this will be rectified shortly with the installation of a single coax outlet. I currently have a high speed cable modem for internet and BEV for TV. Is it possible to use the single coax cable that will soon go to the home office to feed both the cable modem and a BEV receiver? In particular, can I use one cheapo 1 to 2 coax splitter in reverse (i.e. two in, one out) to feed both the modem signal and BEV signal into the single coax going to the office and then "split" the emerging signal with a second cheapo coax splitter, sending one to the modem and the other to a BEV receiver.

I suspect the answer to this question will turn on whether one signal might "interfere" with the other and I'm hoping the answer is no, since AFAIK you can do this with cable modems & digital cable TV (I vaguely recall that, when I got Shaw digital TV a few years ago in another house, it wasn't necessary for the installer to do any additional cabling, n/w/s I had Shaw high speed internet at the time).
 
I have no idea if it works with a modem but regular cable and UHF/VHF signals can be combined with a satellite signal with a diplexor. Then another Diplexor will split them into 2 again. It is clearly labelled on the Diplexor which side the satellite goes on with either satellite in or power pass. They are cheap. I think I paid $5 at local electronics store.
 
Should be no issues as I believe all Cable frequencies are below 1GHz.

There is a drawing somewhere on this site for how to connect them, although as "Q" says they are labeled.
 
If its a matter of running CATV or OTA on the same coax as Satellite the answer is yes. We have a thread in the OTA Forum that covers diplexers (with diagrams) and other signal gear:

http://www.digitalhome.ca/forum/showthread.php?t=42428

On the other hand, cable modems are notoriously finicky about any sort of splitting or signal diversion upstream of them, so your mileage may vary.
 
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