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multiple signals onto one coaxial cable possible?

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Ward

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Feb 10, 2008, 10:56:23 PM2/10/08
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Hello. First I'll mention my current set up as it is now in my home.
We are moving soon and the setup will be a bit different.

I have a Dish Network VIP622 DVR receiver. This receiver has 3 hdtv
tuners inside. 2 for the Dish satellite signal and another for an off
air antenna. The Dish signals are brought to the receiver on one
coaxial cable where they are separated into two coaxial cables that
connect to tuner 1 and tuner 2. My off-air antenna comes to the
receiver on its own coaxial cable where it connects to the off-air
antenna tuner.

In my new home, we will be placing our receiver in the finished
basement. There is only 1 coaxial jack there. I have easy access to
the distribution point where all of the coaxial cables for the home
are located.

My question is this. Can I combine all three sources (2 from the Dish
and 1 from the off-air antenna) onto one coaxial cable, send them to
the jack where the receiver will be, then separate the three signals
from the single cable back into 3 separate coaxial cables?

Right now I see with our current setup that two signals are combined
onto one coaxial cable, then separated back into 2 signals. I'd
simply be combining 3 signals onto one coaxial cable, then back into 3
signals again at the receiver.

I'm only asking this question because it is going to be difficult if
not impossible to get a new single coaxial cable to the desired
location for the off-air signal.

I hope this makes sense.

Thanks,

Ward

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spam@starband.net Deke

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Feb 11, 2008, 12:01:14 PM2/11/08
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Its done everyday with an inexpensive device called a
diplexer. You combine your OTA signal with your DN signal
into one diplexer, which has one output/cable. At the termination end, you
insert another
diplexer to separate the signals back to OTA and DN, 2 cables. Be sure to
use a good brand, with weather proof connectors.

"Ward" <ward...@yahoo.com> wrote in message
news:4b9de493-7144-466d...@v17g2000hsa.googlegroups.com...

Jordan Hazen

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Feb 13, 2008, 6:52:27 PM2/13/08
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In article <e36c0$47b07f04$943f4036$44...@STARBAND.NET>,

Deke <no sp...@starband.net> wrote:
>Its done everyday with an inexpensive device called a
>diplexer. You combine your OTA signal with your DN signal
>into one diplexer, which has one output/cable. At the termination end, you
>insert another
>diplexer to separate the signals back to OTA and DN, 2 cables. Be sure to
>use a good brand, with weather proof connectors.

Keep in mind that any coaxial cable already in the wall needs to be of
sufficiently high quality to carry your satellite signals... i.e.
RG-6, not the thinner RG-59 often used for cable-TV.

Dish Network's method of feeding both satellite tuners over one cable
works by putting one LNB's signal on 950-1450 MHz, and the other on
1650-2150 Mhz. That leaves room for a diplexer to insert over-the-air
signals, which are well below 950 MHz (at the cost of a tiny signal
loss on each line, perhaps 1-2 dB).

The "high band" LNB signals on 1650-2150 Mhz can be a problem over
low-quality coax, though. Even some RG-6 won't pass these high
frequencies reliably, resulting in very weak or even missing signals
on certain high-band transponders.

Better RG-6 cables often have wording like "Swept to 3 GHz" printed on
the side... but, if cable's already in your wall, you might not be
able to tell its frequency limits very easily. It shouldn't hurt to
try and see, but do check to be sure no channels are missing or
unstable.
--
Jordan.

Richard

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Feb 15, 2008, 12:39:47 AM2/15/08
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On Sun, 10 Feb 2008 19:56:23 -0800 (PST), Ward <ward...@yahoo.com> wrote:


>Right now I see with our current setup that two [satellite] signals are combined


>onto one coaxial cable, then separated back into 2 signals.

Does DirecTV also combine two satellite signals onto one cable?
My current SD DirecTV setup has only one cable from the dish to my TV room,
and with my vaulted ceilings, there's no easy way to run a second cable.
There is a second cable from the cross-connect box to the TV room, but I'm using
it for OTA pickup.

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