I called D* back today to make sure that the installer would know/understand that our main TV (where we want to upgrade from a HD Receiver to an HD DVR) only has one cable coming down the wall. It is not possible to run another cable down that wall. At the present time, we use a diplexer on that cable so that we can also use our OTA antenna for HD locals (and as a backup when we lose satellite service during storms ... it happens ... a lot.)
I'm willing to give up the OTA access on this location (can run another antenna cable to any other TV location in the house ... just not this one) ... but I really would like to get full functionality out of the DVR at this location. Is this not possible with a single cable?
I just spoke with D* again and was transferred to tech support and they now tell me that if it is not possible to get a second cable in the wall where we want the HD DVR, that we will not be able to watch a live channel while recording. We will only be able to watch a pre-recorded program or the program we are recording. That just isn't gonna fly.
The guy I just talked to in technical support said that even if I got SWM I would still have to run an extra cable down the wall in order to get the full functionality of the DVR. Then ... on top of that, he informed me that only NEW installs could get SWM installations ... that they would not do them for upgrades. Although, from what he is telling me, even if I had a SWM I would still not be able to access both tuners on the DVR since I only have access to one cable for that particular location.
Please help me understand how this works. Is there a resource document somewhere that I could read that would help me understand? Have I misunderstood what can be accomplished with a single cable and a DVR? If we can split the signal between satellite and OTA antenna, can we not split that single cable so that it can feed both tuners on the DVR instead of one tuner and the OTA antenna connection?
I don't know if I was not adequately explaining the situation to the D* technician or if I have just missed something somewhere and need to accept that I am going to have to select another room in my house to install the HD DVR, even though my main room is where I would want to watch the recorded programs. Why do the builders have to be so "cheap" when they pre-wire houses. I realize this was done 7 years ago, but even then ... why would they limit future capabilities by only doing single cable drops?!?
FWIW ... I don't know how much this matters in the grand scheme of things, but the technician said they wouldn't do SWM on an upgrade because they would have to replace all the cables in the house. I don't understand why. The house was pre-wired from an equipment box in an upstairs closet, to six different rooms. When D* installed the original dish, they ran cables from the roof to that equipment box in the closet. They did not run any cables down all the rest of the walls in the house, so why would they need to replace all the cables in my house?
The guy you talked to has NO CLUE ...
The REASON I went to the SWM set up is specifically because I can't get another cable to the bed room. (I could, just don't have the time to deal with it at the moment.)
YES you will have FULL functioning HD DVR with the SWiM set up with only one wire going to the recvr.
Call back and set up your upgrade and let them know you'll need a SWiM set up this time and go from there.
Worst case scenario is you buy your own SWiM set up, but you really shouldn't have to.
Splitting the signal the way your thinking will NOT work. Sorry, voltage differences would prevent this from working the simple put a splitter in the line trick.
Why are builders so cheap ?
They Are not, but thats what is generally placed when the wiring is done in new homes.
Obviously , had YOU built the home, you could have put more in, but the electricians are the ones generally placing the Coax as they have to pretty much make the same runs with the electric lines.
You rarely have a Cable company come out to do a pre installation, sometimes, but usually it's 1 in a 100.
Same goes for the phone lines, the phone company doesn't do pre wire anymore either.
As for the cables in your house, if they are RG6 they should be fine.
It's really to bad that you cannot get the second coax to your TV as thats how you could address the OTA issue.