Quote:
Originally Posted by elgemcdlf
I would be happy with a side box such as Motorola uses. This way one could keep their favorite receiver without sacraficing anything. The HD box could be manufactured for far less cost. Built in ATSC would be nice. Something that could potentially work with any DVB MPEG2 receiver or at least a popular group. |
???? Considering that there aren't any outputs on any DVB MPEG2 receiver I've seen, that could go to an HD "side box", I'm not sure just what could be manufactured for less cost. The only output on a DVB receiver that you could use, is the passthru, and that is basically the same as the raw LNBF signal. Ie the only potential savings would be not needing a power supply or DiseqC 1.2 dish controls. The box would still have to be a complete standalone receiver. And if you are going to the trouble of making a complete receiver, then it would be shortsighted to not include the LNBF power and DiseqC capability.
What you are saying would make a lot of sense, if DVB receivers had an output providing the transport stream, but that isn't the case. All that is available is the signal from the LNBF.
Quote:
Originally Posted by elgemcdlf
I am kinda curious what would happen if I ran the rf out to the ant in of the DS box and tuned to a HD channel. Might find it doing a scan and make it watchable. Sounds like a cool experiment for tonight  |
Since I assume that the tuning range of your DS box is in the regular OTA UHF band, and the range of the available signals on the sat receiver's passthru are in the 950-1450 range, besides the fact that the DS box is expecting 6 MHz wide
channels, and they are in a different format, there shouldn't be anything there to see anyway.
Only chance I see of this even coming close to working, would be if you used a circular 11250 Ku. The signal from the LNBF would have the regular 11700-12200 linear band down in the 450-950 band, so some KU signals might then reside in the UHF band tuned by the DS box. However I really think it's next to impossible to get this to work. I don't think OTA ATSC really is compatable with DVB-s. I know that the
PBS HD
channel is technically in ATSC format, but I'm pretty sure it is encapsulated in a different format than the OTA signals. It is certainly a different bandwidth. The sat signal is about 15 MHz wide, while the OTA signals are 6 MHz wide.