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Discussion in 'DIRECTV General Discussion' started by Sixto, May 7, 2010.
I can only imagine what insurance would cost for a $300 million satellite.
You believe what you want. I'll believe what I know.
I want MY50 as well and CLTV HD
So, just how do they make this swap over to D12 from D10? Since D10 is still at 103, I surmise that they have to move channels from D10 to D12 using equivalent TPs and then turn off the TP on D10. This would be a sequential process going through all TPs (probably at night so as to not disrupt service). And once complete they can move D10 to its testing spot at 106. In the meantime they light up the new HD on D12.
This is just my simple thoughts on a very complex situation.
Detailed info is welcome.
Does anyone know how much of this "corrective action" would require some sort of FCC grant?
I'm thinking that there would need to be an STA to move D10 out and back and nothing more.
I would think that the various LIL channel transitions could pretty much be handled at DIRECTV's discretion (perhaps by flash cutting between birds) but they wouldn't bother with a complete CONUS transition without a grant.
The recent FCC filing referenced another STA coming for "the procedure".
It's 102.6 not 106 =)
I believe that in the past they first get the channel up and running in both locations and then change the mapping information so that everyone is looking at the new location and once they are satisfied that everything is working correctly they turn off the old one.
Alan -Thanks for the additional information. I did download the excel transponder file and pulled out D10 transponders.
I posted all locations for transponders 17 18 and 21 to my copy to see why my signal levels were that high. Mystery solved. Transponders 17 & 18 split the Memphis stations and 21 includes some New Orleans stations. Checking the projected D12 footprints for both cities showed excellent reception for those spot beams.
I did capture a local map library of the 50 projected D12 beams. If there is an actual set available after all settles out, it might be interesting to compare to the set.
I guess the old adage about believing nothing you read and only 1/2 of what you see still holds true.
These are more than projected. They are absolute gain curves taken from the FCC application and thus I believe quite firm.
Data points taken and projected onto a Google Earth shell.
Fairly impressive work done by spears61!
Close enough for gov't work!
I didn't post anything based on belief. If you would care participate in an intelligent discussion about anything that I posted based on what you believe, or what you know, or what you believe you know, I'd be happy to listen and learn, but the above response is of little use to me or anyone else looking to understand more about this subject.
doctor j - I picked up "projected" from the satbeam.com beam titles and I guess thinking about the D10 spot beam problems assumed that the actual footprints after all is finished could vary from the initial design values. But, you are right. The Spears61 work is really great.
D10 FCC Move Approved (5/12/2010).
Wait! I'm still using it!
Have they filed the STA for the amelioration yet?
Nope, but everyone here will be the first to know.
Are we looking at a few weeks to fix D10 or a few months?
[strike]The grant that Sixto mentioned above is the drift grant that they needed.[/strike]
The application mentioned discontinuing commercial service on D10 prior to the drift so I'm a little surprised by this description. Maybe "operations" in this case means TT&C?
Although I have a lot of faith in DirecTV, I sure hope they aren't screwing around and screw something up on 5/23 when the last LOST is being broadcast.