Splitting Voom + OTA signal

[plato]

I have had Voom for about a month now and have had a great experience. HD looks great and the instal went well.
The question I have is how do I split or diplex the sat signal from the ota signal.
The insatll guys apparently combined the two signals on the roof and brought in one cable. This cable is then attached to a diplexor on the back of the receiver.
I want to diplex the signal before it is connected to the receiver.
I have a home theater pc and would like to record high def programming from the OTA.
I have already tried a diplexor that I bought from Radio Shack and it did diplex the signal but the quality is definately not HD.
Thanks

 

[Sean Mota]

Yes, you need to get one line from antenna. Then go to radio shack and buy a splitter 5+ db and you may split that to VOOM and your PC card.

 

[madpoet]

Be warned though that if your signal is on the edge, even an amplified splitter may kill it.

-MP

 

[occammd]

what card are you using on the HTPC?