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edw
Guest
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 Posted:
Mon Oct 24, 2005 3:21 am Post subject:
DirectTV HDTV over two lines |
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I have a round dual LNB dish; have the two lines from dish coming down
side of house in through basement and then to a DirecTV approved 4way
splitter (think that's what you call it)
Then have two lines from splitter to my basement DirecTV Tivo and two
line up to main floor where I have a basic RCA box (non Tivo), ran two
lines just incase I replace RCA with an additional DirecTV Tivo box.
I am considering a HD setup. Replacing that RCA box with a HD DirecTV.
I have since built a concrete deck that now surrounds the two cables
coming from roof. I can't run any new cables, cable tube I placed in
concrete is too small, and drilling into concrete to open hole to run
more is not an option.
What I want to know is:
1. I will replace the original DirecTV dish with a HD DirecTV dish and
I know it has three LNB's do you need all 3 of them to make HD work?
If not, Can I plug my two original cables into two of the dishs LNB's
in new dish and use the 4 way splitter I have to hook up both my TV's
one is non HD Tivo other will be HD Tivo.
2. If I take advantage of the DirecTV offer and install on over the air
HD antenna along with the HD DirecTV antenna can I join the signal down
the same lines?
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edw
Guest
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| Posted:
Mon Oct 24, 2005 4:41 am Post subject:
Re: DirectTV HDTV over two lines |
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After reading more about the HD Dish, the 3x4 multiplexer is at the
dish. And the four separate lines that come from the multiplexer could
go to four separate HD boxes if you wanted.
So theoretically Jack Zwick comment above is correct,
take two from the dishes multiplexers four, using my existing two
lines, and run to my multiplexer in my house to split out to the four
lines I have inside, two to my basement Tivo and two to my living room
(for a future HD-Tivo)
wkearney99 you say I will need the third signal, but wouldn't it get
mixed into the 3x4 multiplexer at the dish? Wouldn't each of the four
lines coming off that multiplexer carry the three signals from the
dish? |
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Jack Zwick
Guest
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| Posted:
Mon Oct 24, 2005 4:41 am Post subject:
Re: DirectTV HDTV over two lines |
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In article <1130106112.025068.48840@g14g2000cwa.googlegroups.com>,
"edw" <google@k9corner.com> wrote:
| Quote: | I have a round dual LNB dish; have the two lines from dish coming down
side of house in through basement and then to a DirecTV approved 4way
splitter (think that's what you call it)
Then have two lines from splitter to my basement DirecTV Tivo and two
line up to main floor where I have a basic RCA box (non Tivo), ran two
lines just incase I replace RCA with an additional DirecTV Tivo box.
I am considering a HD setup. Replacing that RCA box with a HD DirecTV.
I have since built a concrete deck that now surrounds the two cables
coming from roof. I can't run any new cables, cable tube I placed in
concrete is too small, and drilling into concrete to open hole to run
more is not an option.
What I want to know is:
1. I will replace the original DirecTV dish with a HD DirecTV dish and
I know it has three LNB's do you need all 3 of them to make HD work?
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Yes, but they come with a 3 x 4 multiplexor builtin, so you take two of
those four outputs and connect to your two.
| Quote: | If not, Can I plug my two original cables into two of the dishs LNB's
in new dish and use the 4 way splitter I have to hook up both my TV's
one is non HD Tivo other will be HD Tivo.
2. If I take advantage of the DirecTV offer and install on over the air
HD antenna along with the HD DirecTV antenna can I join the signal down
the same lines? |
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edw
Guest
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| Posted:
Mon Oct 24, 2005 4:41 am Post subject:
Re: DirectTV HDTV over two lines |
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And then I can multiplex those two to four again with out problems or
degration of signal?
And they will work for HD?
How about over the air Antena signal? can it be mixed in? Do I need a
different multiplexor for that? So one told me you will need a
multiplecor that can handle DTV & Over Air Signal to split it to the 4
wires. |
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wkearney99
Guest
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| Posted:
Mon Oct 24, 2005 4:41 am Post subject:
Re: DirectTV HDTV over two lines |
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| Quote: | I have a round dual LNB dish; have the two lines from dish coming down
side of house in through basement and then to a DirecTV approved 4way
splitter (think that's what you call it)
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It's a multiswitch, not a splitter. It balances the signals needed by the
receivers and switches them to the correct LNB signal. It *looks* like a
splitter but it does a rather different thing.
| Quote: | Then have two lines from splitter to my basement DirecTV Tivo and two
line up to main floor where I have a basic RCA box (non Tivo), ran two
lines just incase I replace RCA with an additional DirecTV Tivo box.
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Yep, sounds like the right idea.
| Quote: | I have since built a concrete deck that now surrounds the two cables
coming from roof. I can't run any new cables, cable tube I placed in
concrete is too small, and drilling into concrete to open hole to run
more is not an option.
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Sure it's too small? You're going to need that third signal. They do make
lubricants that will help ease pulling cable. That and some thinner
jacketed cable might let you get away with using that current conduit. |
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Harvey
Guest
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| Posted:
Mon Oct 24, 2005 8:15 pm Post subject:
Re: DirectTV HDTV over two lines |
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Yes. I have the oval dish with the built-in 3x4 switch. The 4 wires come
into the house into a 4x8. 2 lines each go to 3 tivos and 1 goes to a tuner
only.
So yes, you will be able to split the 2 signal wires to 4, and run 2 hdtivos
if you wanted to.
Of course, I am writing this from within hurricane Wilma, so may be spouting
stress-induced gibberish, but don't think so.
Harvey
"edw" <google@k9corner.com> wrote in message
news:1130117241.494654.58050@g14g2000cwa.googlegroups.com...
| Quote: | And then I can multiplex those two to four again with out problems or
degration of signal?
And they will work for HD?
How about over the air Antena signal? can it be mixed in? Do I need a
different multiplexor for that? So one told me you will need a
multiplecor that can handle DTV & Over Air Signal to split it to the 4
wires.
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Harvey
Guest
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| Posted:
Mon Oct 24, 2005 8:19 pm Post subject:
Re: DirectTV HDTV over two lines |
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"wkearney99" <wkearney99@hotmail.com> wrote in message
news:r5SdnVY2LKmi28HeRVn-hQ@speakeasy.net...
| Quote: | I have a round dual LNB dish; have the two lines from dish coming down
side of house in through basement and then to a DirecTV approved 4way
splitter (think that's what you call it)
It's a multiswitch, not a splitter. It balances the signals needed by the
receivers and switches them to the correct LNB signal. It *looks* like a
splitter but it does a rather different thing.
Then have two lines from splitter to my basement DirecTV Tivo and two
line up to main floor where I have a basic RCA box (non Tivo), ran two
lines just incase I replace RCA with an additional DirecTV Tivo box.
Yep, sounds like the right idea.
I have since built a concrete deck that now surrounds the two cables
coming from roof. I can't run any new cables, cable tube I placed in
concrete is too small, and drilling into concrete to open hole to run
more is not an option.
Sure it's too small? You're going to need that third signal. They do
make
lubricants that will help ease pulling cable. That and some thinner
jacketed cable might let you get away with using that current conduit.
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Perhaps a previous post of mine was in error. Are you sure he will need the
3rd wire? As far as I know, all 3 sats are available on each of the 4 wires
coming off the dish. In fact, the only reason you need 2 wires for the dtivo
is for the 2 tuners. It will in fact work fine with 1 wire, but will only
record one show at a time.
Or is this more Wilma induced gibberish?
Harvey |
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edw
Guest
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| Posted:
Mon Oct 24, 2005 10:21 pm Post subject:
Re: DirectTV HDTV over two lines |
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Harvey:
Does the oval dish with the built-in 3x4 switch have a diplexer as
well to bring down Over Air signal for my local tv channels? I know I
will need to add a seperate antenna but if it has a diplexer built in
then one piece less to buy. |
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Joe Smith
Guest
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| Posted:
Mon Oct 24, 2005 10:48 pm Post subject:
Re: DirectTV HDTV over two lines |
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Harvey wrote:
| Quote: | Yes. I have the oval dish with the built-in 3x4 switch. The 4 wires come
into the house into a 4x8. 2 lines each go to 3 tivos and 1 goes to a tuner
only.
So yes, you will be able to split the 2 signal wires to 4, and run 2 hdtivos
if you wanted to.
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No, he cannot.
HD signals require that the HD recorder be connected either directly
the dish's built-in multiswitch, or to a separate multiswitch
that has _four_ connections to the dish's multiswitch.
Works: four cables from dish to 4x8 multiswitch, then 2 cables to DVR.
Does not work: two cables from dish to 2x8 multiswitch to DVR.
| Quote: | And then I can multiplex those two to four again with out problems or
degration of signal? And they will work for HD?
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No, must have four cables going to final multiswitch for HD.
| Quote: | How about over the air Antena signal? can it be mixed in? Do I need a
different multiplexor for that? So one told me you will need a
multiplecor that can handle DTV & Over Air Signal to split it to the 4
wires.
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Some dishes have a fifth input for OTA. For them, all it takes is a
diplexor at the PVR end. The diplexor splits one coax signal into
separate VHF/UHF OTA and DirecTV feeds.
-Joe |
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Joe Smith
Guest
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| Posted:
Mon Oct 24, 2005 11:14 pm Post subject:
Re: DirectTV HDTV over two lines |
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edw wrote:
| Quote: | After reading more about the HD Dish, the 3x4 multiplexer is at the
dish. And the four separate lines that come from the multiplexer could
go to four separate HD boxes if you wanted.
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Correct.
| Quote: | So theoretically Jack Zwick comment above is correct,
take two from the dishes multiplexers four, using my existing two
lines, and run to my multiplexer in my house to split out to the four
lines I have inside, two to my basement Tivo and two to my living room
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Yes.
| Quote: | (for a future HD-Tivo)
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No. If you have only two lines from the dish to your in-house
multiswitch, you can only feed non-HD receivers or PVRs from that.
| Quote: | wkearney99 you say I will need the third signal,
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The third satellite has the fifth signal.
Of the three heads pointed at three different satellites, two have
dual outputs and one has a single output. Two of those are combined
with an ordinary splitter to provide four inputs to the 4x4
multiswitch at the oval dish.
When using one (and only one) HD TiVo, it needs to have two of the
outputs dedicated to it; the other two outputs can go to a regular
multiswitch for just about any number of non-HD receivers.
http://feldoncentral.com/TiVo/direcTVmultiswitchHDTiVo2x4.gif
For multiple HD TiVos, all four outputs have to be brought
down from the dish to a 4x8 multiswitch.
http://feldoncentral.com/TiVo/direcTVmultiswitchHDTiVo.gif
| Quote: | but wouldn't it get mixed into the 3x4 multiplexer at the dish?
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Well, for one thing, it is a multiswitch not a multiplexer.
| Quote: | Wouldn't each of the four lines coming off that multiplexer
carry the three signals from the dish?
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Nope. Each of the four lines carries one signal at a time.
Which one of the four signals gets passed to a given output depends on
what voltage is being sent up from the receiver.
13 volts DC = select signal 1.
18 volts DC = select signal 2.
13 volts + 22KHz modulation = select signal 3.
18 volts + 22KHz modulation = select signal 4.
Bottom line:
Single HD receiver needs two lines.
Single HD and single non-HD requires three lines.
Anything else requires all four lines from the dish.
-Joe |
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Joe Smith
Guest
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| Posted:
Mon Oct 24, 2005 11:32 pm Post subject:
Re: DirectTV HDTV over two lines |
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Harvey wrote:
| Quote: | Perhaps a previous post of mine was in error. Are you sure he will need the
3rd wire? As far as I know, all 3 sats are available on each of the 4 wires
coming off the dish. In fact, the only reason you need 2 wires for the dtivo
is for the 2 tuners. It will in fact work fine with 1 wire, but will only
record one show at a time.
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You are correct. With only two wires coming from the dish, edw can
operate two HD TiVos at reduced functionality; each one can record
a single channel each.
Beware that the HD TiVo treats each DirecTV+OTA tuner pair as a single
virtual tuner. That is, only one OTA tuner is activated when the
unit is configured to operate with a single satellite feed. In order
to record two OTA channels on a single HD10-250, both satellite feeds
must be present and activated.
-Joe |
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Joe Smith
Guest
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| Posted:
Mon Oct 24, 2005 11:46 pm Post subject:
Re: DirectTV HDTV over two lines |
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Joe Smith wrote:
| Quote: | Harvey wrote:
Yes. I have the oval dish with the built-in 3x4 switch. The 4 wires
come into the house into a 4x8. 2 lines each go to 3 tivos and 1 goes
to a tuner only.
So yes, you will be able to split the 2 signal wires to 4, and run 2
hdtivos if you wanted to.
No, he cannot.
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Clarifications:
Yes, 2 signal wires can be multiswitched to 4, as long as none of
the outputs will be going to an HD receiver.
Yes, 2 signal wires can support 2 HD recorders with 1 tuner each.
Anything else requires 3 or more wires.
-Joe |
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edw
Guest
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| Posted:
Tue Oct 25, 2005 12:22 am Post subject:
Re: DirectTV HDTV over two lines |
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So Joe Smith your saying I now need to run four wires to my basement,
two more than I currently run, where I can remove my 2x4 multiplexer
and just tie the four lines from roof to the four lines that use to
come off my multiplexer.
Two of those lines go to one HD Tivo, the other two to the second HD
Tivo.
And with this setup I can diplex (either through diplexer built into
oval dish or external diplexer) OTA signal to both HD tivos so they can
record two shows each at same time.
Does it make a difference which pair go to which box? Knowing this is
DirecTV I'm guessing yes. ugh |
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edw
Guest
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| Posted:
Tue Oct 25, 2005 12:49 am Post subject:
Re: DirectTV HDTV over two lines |
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Also I hear DTV is going MPEG4 with there future HD programing, and
that the current HD Tivo wont work with MPEG4. Does this now mean I may
need to get a different dish than the oval one and may have to run more
than four lines down from it?
DirecTV is making it hard for the home user to stay with them. With
Digital cable only needing one cable into the house and offering DVR
capabilities with HD DVR coming soon! |
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Joe Smith
Guest
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| Posted:
Tue Oct 25, 2005 3:39 pm Post subject:
Re: DirectTV HDTV over two lines |
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edw wrote:
| Quote: | So Joe Smith your saying I now need to run four wires to my basement,
two more than I currently run, where I can remove my 2x4 multiplexer
and just tie the four lines from roof to the four lines that use to
come off my multiplexer.
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Yes.
With four lines from the dish to the basement, you also have the option
of installing a 4x8 (4-in 8-out) multiswitch. That would let you
connect two HD TiVos and yet still be able to use your old RCA receiver.
-Joe |
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