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Combining OTA and SAT into one cable AFTER sat receiver

12-07-2014, 10:27 AM
Here's my situation-

-I have a SAT cable ran to my living room tv only.
-OTA signal comes into the house, is ran through an amplifier, then sent through a splitter to every room in the house (so every room has a OTA cable but only the living room has a SAT cable)

My question: What's the easiest way to run OTA and SAT to every tv in the house? I really would like to avoid running a second cable to each room in the house to support SAT as routing a cable to the upstairs would be a nightmare in my house. Can I combine signal AFTER the SAT receiver (combine SAT and OTA), send it through a splitter to each room using the existing cables, then split it before the tv?

If that's possible, how do I then connect both OTA and SAT cables to a standard digital tv (since it only has one coax input on the tv)

Keep in mind I want to keep just one receiver and don't care that all the tvs will be on the same SAT channel.

Also try to be basic in your explanation as I only have basic knowledge. Thank you.

12-07-2014, 12:28 PM
OK there are several ways to do this.

One way is to replace the satellite switch (used to run the satellite signals to all rooms) with one that has a "Terrestrial" signal input, you then connect the coax from the off air TV antenna to this input.

At each TV set that you want off air signals (Terrestrial) you use a diplexer on the satellite coax, this splits out the satellite signals from the off air signals, (lets use OTA) you then connect the satellite signal to the SAT receiver and the OTA signal to the TV sets ANT input.

Note: The satellite switch with the Terrestrial input has to have an amplifier built in for OTA signals.

The second way (if you don't or can't replace the switch for the satellite) is to find the #1 satellite input coax and use a diplexer there, then diplexers at all TV set's that need the OTA signal.

However if you need to amplify the TV signals then this may not work too good as the diplexer may not supply a DC voltage to run an external TV signal amp.

Third way.
If the TV signal splitter and amp are co-located next to or close by to the satellite switch, then a diplexer can be used at each output from the satellite switch, the signals from the TV splitter/amp can then be run to the TV sets, a second diplexer at the set will be used (as before) to split out the signals.

I think this is what you want to do if I read things right.

One other thing the coax used for TV signals will not support the signal needed for a satellite receiver, the coax must be rated to 2.5 GHz.

12-07-2014, 07:50 PM
If you don't care about spending a little extra monthly cash, they way I did it is with the Dish Hopper and wireless Joeys on the other TV's. Run the antenna lead into the back of the Hopper and everything is distributed to the other TV's. Best of all it's in HD!

12-08-2014, 07:33 AM
I'd like to keep the setup I've got.

I don't have a satellite switch. I only have a cable running from the dish to my receiver in the living room, then from the receiver to the tv. As for all the other rooms, I just have an 8 way splitter to send the incoming antenna signal to all other rooms in the house for regular channels. I would like to get satellite to all the other rooms as well using the one existing cable in each room. And I would like to keep just the one receiver in the living room, then feed that output signal to the rest of the house. I don't care that they woul all be the same channel. The main thing is finding a way to send both sat and regular channels to each room using the one existing cable in each room.

12-08-2014, 07:38 AM
I guess here is my main question:

Is it possible to send antenna uhf signal and satellite signal (AFTER THE RECEIVER) through the same cable. Then if so how do I split the signals back in each room (If that's necessary).

12-08-2014, 01:28 PM
OK I think I see what your trying to do.

You want to send the RF TV signal from your satellite receiver's output to the other TV sets in the house right?

If so then you need to use the diplexer at the satellite receiver, connect it just like you would normally, but you would have to use an local in-line TV amplifier at the satellite receiver to amp up the RF output signal, this amplified signal would then be fed into the terrestrial side of the diplexer.

If you use the RF output on the satellite receiver to run the TV set then a 2 way splitter may be needed.

At the 8 way splitter you need to have a second diplexer at the satellite coax as close to the splitter as possible, if you have an unused output on the 8 way splitter (if it is an un-amplified splitter) you then connect the terrestrial side of the diplexer to this unused output. (this will not work with an amplified splitter)

If the 8 way splitter is amplified you have to use a 2 way splitter before the input to the 8 way, you can use it to combine the two signals.

Now for the fun part, the output of the satellite receiver can not or should not be on any local TV channel or close to it, this would cause problems.

If your satellite receivers RF output is on TV channel 3 or 4 (VHF lo band) and you have a local TV channel on that same channel you will have problems.

Also the RF output from the satellite receiver is analog, it will not be a digital HD ATSC signal, the TV sets in the house must be able to receive both ATSC off air (from your antenna) and Analog off air signals. (from your satellite receiver)

Also another possible problem is the added loss on the satellite signal from the LNB, the use of the two diplexers may affect the signals down to the receiver.

12-15-2014, 09:09 AM
What model number is your Sat Receiver?