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Antenna for Local HD Programming Install Question

Bob Caruthers
08-09-2008, 01:19 PM
I have an HDTV connected to a Dish 722.

I also want to connect an antenna to the 722 to receive locals in HD (they are not available through the satellite yet).

Questions:

Can the satellite cable be combined somehow with a cable from the antenna (in the attic where the Dish cable is located)?

Or, do I need to run a separate cable directly from the antenna to the 722?

Or, is there another way?

tia

jim5506
08-09-2008, 01:33 PM
You can use diplexers that stack the channel frequencies into the came cable and then seperate it back out at the receiver end, with the caveat that there is line loss in doing this.

If any of your OTA or satellite channels are near the cliff where they are not decipherable by your receivers, they might disappear if you diplex the signals.

Running a seperate cable is the best way to do it, but diplexing does work.

fhoegler
08-10-2008, 02:07 PM
What is the difference between the "splitter" from the Cable Companies and a "diplexer"and "multuplexer" for satalite?

jim5506
08-10-2008, 05:35 PM
Splitter merely splits the signal on the cable to two cables output at approximately 1/2 the signal strength.

A diplexer joins signals of two different frequency ranges into one cable and then another diplexer splits them back apart from each other with only a slight loss in signal. A diplexer is a much more complicated electronic device.

Bob Caruthers
08-11-2008, 10:29 AM
Jim,
Thanks for the response.
Tried the antenna in the attic and ran a wire down through the house just to test it, but unfortunately the signals are too weak.
We could try it on the roof, but our house is in a low spot and a long way from the transmitters north of Amarillo the results probably wouldn't be much better.
Maybe Dish will get the HD locals soon...
Thanks again,
Bob

jim5506
08-11-2008, 04:45 PM
Just moving the antenna outside will double the signal it receives.

18 is # 1
08-14-2008, 12:36 AM
Jim,
Thanks for the response.
Tried the antenna in the attic and ran a wire down through the house just to test it, but unfortunately the signals are too weak.
We could try it on the roof, but our house is in a low spot and a long way from the transmitters north of Amarillo the results probably wouldn't be much better.
Maybe Dish will get the HD locals soon...
Thanks again,
Bob
You may want to mount it on a tall mast. We used to call them Cowboy antennas. People in Dallas used to try and pick up the signal from Tyler when the games weren't sold out.
O.K. So it was a long time ago. Jerry World may force it again at the prices he's charging.:crying:

Can't promise it's true, buy if you hold onto the TV while standing on one leg, it'll triple your signal strength.