Originally Posted by Rammitinski
v7 has always used a different host channel - here and elsewhere, as far as I know.
Well, if you didn't know differently before, Ramm, you do now, because I'm sorry to point out
that what you say - while it may be true in your area - is simply NOT TRUE in the San Francisco market.
For YEARS, both of my units - one v8 and one v7 - got their data from PBS 9. Presently, as noted below, they are getting data from 2 different stations (NEITHER of which has digital data, because they are analog stations!), but this NEVER occurred before last Thanksgiving, and it didn't become the regular state for my units until about 6 weeks ago. Furthermore, when I check PBS 9 with my 3410a, it STILL shows the A and B packets used by v7 at comparable rates to those from CBS 5....so 9 is STILL broadcasting both v7 and v8, as has always been the case as far as I can tell (which is to say, for the last 3 years, since that is when I got my Sony).
I don't see how I can make it clearer, and if you didn't notice this in my posts over the last year (the period when I have been most active on these threads), I can't blame you. But it's not because I didn't refer to the fact, in numerous posts over that period on the Sony 250 and 3410a threads, that each of these units was getting data from PBS 9.
This doesn't mean of course that they are getting (or selecting) the SAME data, because they are not...for example, my 3410a is seeing or getting A and B packets from both analog stations, while the Sony gets - I believe - B and C packets from them (I actually haven't checked them recently, but that's what I remember)...and - when I tune the unit to 5.1 (which broadcasts digital TVGOS) - the ATSC slicer screen lists C packets (but doesn't mention B, which I don't understand, but I don't pretend to understand much about the digital data...and I know NOTHING about the v9 data).
As for your mention of different channel lineups for v7 and v8, of course that is true, but that doesn't mean they can't get the different lineups from the same station...different packet types, remember? Or, remember that - aside from the 180 minute program info download (from which my units, as I said, pick up different packet types) - there are also 50 minute and 60 minute downloads, and if one of these has enough total capacity for the very lengthy v8 lineups, they can as easily include the short v7 lineups.
I don't understand what the problem would be. But in any case, you are simply not correct in claiming that v7 and v8 cannot be broadcast from the same analog station...sorry - Tony
PS As for the question of how these different types of data are structured in the broadcasts, I personally raised it at some length (positing different possibilities) quite a while ago in the Sony thread, but got no response, which led me to think that there really wasn't any specific info out there. And, when this issue came up in either this thread or the DTVPal thread, someone else remarked that it would be really inefficient to have these different data types be in independent, separate data structures, with which I said I tended to agree. (What led to THIS question was, in part how the SCTE127 data would be structured, and I guess the answer is that it IS the same structure as the present analog broadcasts - because, when I have used my units to check at various download time - as far as I can tell, I am getting data at comparable rates from PBS 9, CBS 5, AND DTVPal 3 - except that I haven't checked channel 3 on my Sony since the Pal started putting out A and B packets, so I can't claim IT is putting out C packets as well...)
enough, I guess