Destacker ?

[louierocko]

I live in an apartment with DirecTV pre-wired. I only paid to have 1 receiver installed figuring that I would copy that configuration in the other rooms. The cable from the wall is running through a Sonora D575 destacker/diplexer and on to the receiver. I tested the other 2 rooms with this setup and they both worked as well.

This is what I expected, but I need the knowledge of the pros here to explain something. If I want to run a DVR with dual tuners can I use a standard splitter at the wall and add an additionl D575 so that both tuners work? I was under the impression that once the coax was stacked, it could then be split multiple times and destacked on each addition. Is this correct?

Thanks in advance to all!

[inegron]

I live in an apartment with DirecTV pre-wired. I only paid to have 1 receiver installed figuring that I would copy that configuration in the other rooms. The cable from the wall is running through a Sonora D575 destacker/diplexer and on to the receiver. I tested the other 2 rooms with this setup and they both worked as well.

This is what I expected, but I need the knowledge of the pros here to explain something. If I want to run a DVR with dual tuners can I use a standard splitter at the wall and add an additionl D575 so that both tuners work? I was under the impression that once the coax was stacked, it could then be split multiple times and destacked on each addition. Is this correct?

Thanks in advance to all!

Yes, you can do that, as long as by "standard splitter" you mean a high frequency splitter (one with at least up to 2000 Mhz).

The reason you can not split the Directv signal is because that is a bidirectional signal, with the LNB sending the Directv signal to the receiver and the receiver sending back a "request" for a signal having one of two polarities. If you split that signal directly you'll end up with two receiver telling the LNB what to do, which might cause problems (i.e. if both receivers are requesting different polarities).

What the stacker does is send both polarities at the same time, one at the regular frequencies, the other after being up-converted to a higher set of frecuencies (with one polarity being on top of the other polarity "frequencywise", hence being "stacked"). The de-stacker work very similar to what a multi switch does, it sends the receiver the polarity it requests (passing through one polarity, or down converting the upconverted one).

Now, regarding Tivo, some condos buy the Directv service in "bulk", that is, they pay a certain monthly amount no matter how many subscriber they have. Most of the time they only have basic services (meaning no Tivo service).

That happend to a friend of mine. She had to disconnect service from her "condo" and, since she had a direct view to the satellite, subscribe directly to Directv to get Tivo. Since the antenna is simply an antenna, she was still hooked to the building's dish, but got her Tivo service.

Isma

PS. destakers are kinda expensive.