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DIRECTV Beam Footprint Library


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#1 OFFLINE   Gary Toma

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Posted 23 August 2009 - 01:44 PM

The Satellite Beam Footprint Library provided with this thread is the creation of dbstalk user spears61. It is his inspiration, initiative, creativity and hard work that has culminated with these Beam Footprint Maps. With the permission of spears61, I have collected his work and posted the maps here to share.

There is a tremendous amount of information here, presented in an excellent display. We all owe Mr. Spears a great round of applause.


The beam contour maps reflect the satellite operating at full power. Reception in this case is probably good out to the white or pink isobars, the low 50’s dBw. However, in normal operation, the power is often dialed down to match the market.

gct




some comments from spears61


Background

The FCC started publishing a web data base in the late summer of 2003. Any original license application filed before that date only has a "marker" in the file system and does not have any on line data of any kind. If one of the "old" satellites is moved to a new location after mid 2003, the modification to the original license will include the new footprint data. Remember it can take 5 years or longer to launch after receiving the license. Today, we are still seeing a few launches with no data when the license is 6 or more years old. A good example of this will be one of the DIRECTV 17 GHz satellites that had its application filed pre 2003 and has no usable data in the FCC file.

The Directv satellites that have zero beam data fall into the pre 2003 group of original licenses.

Quantity of beam footprints

  • The Spaceway satellites are very unique and can essentially generate an infinite number of spots. DIRECTV applied and received an exemption allowing them to provide a couple of "examples" in digital form and sketches in their license that show how they can blanket the country with spots.

  • Some of the other newer satellites generated so many beams that it overwhelmed the FCC filing system. Again, DIRECTV applied for and received an exemption to only show some examples in those cases.

  • And new this year, they are starting to use a new database (in select cases) which allows submission of more data. DIRECTV12 used that format and that is the reason we have a great deal of data for DIRECTV12.

In summary, if you don't see a beam footprint, it was not submitted or is really old.

The 17 GHz BSS licenses were just issued after a many year fight over ownership of the slots. It's a really big deal since they are very high power just like the 12 GHz KU satellites. DIRECTV, Echostar, Pegasus, and Intelsat are the major players for this major new addition for high power satellites. They have a maximum of 5 years from this summer to get them launched - something like 15-20 satellites in total. We will probably see some of them launch in 2011-2012.

Edited by gct, 17 March 2010 - 08:49 PM.



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#2 OFFLINE   Gary Toma

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Posted 23 August 2009 - 01:46 PM

DIRECTV 12 Part 1

Edited by gct, 23 August 2009 - 04:13 PM.



#3 OFFLINE   Gary Toma

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Posted 23 August 2009 - 01:46 PM

DIRECTV 12 Part 2

Edited by gct, 23 August 2009 - 04:16 PM.



#4 OFFLINE   Gary Toma

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Posted 23 August 2009 - 01:47 PM

DIRECTV 12 Part 3

Edited by gct, 23 August 2009 - 04:18 PM.



#5 OFFLINE   Gary Toma

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Posted 23 August 2009 - 01:47 PM

DIRECTV 12 Part 4

Edited by gct, 23 August 2009 - 04:23 PM.



#6 OFFLINE   Gary Toma

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Posted 23 August 2009 - 01:48 PM

DIRECTV 12 Part 5

Edited by gct, 23 August 2009 - 04:26 PM.



#7 OFFLINE   Gary Toma

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Posted 23 August 2009 - 01:50 PM

DIRECTV 12 Part 6

Edited by gct, 23 August 2009 - 04:31 PM.



#8 OFFLINE   Gary Toma

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Posted 23 August 2009 - 01:51 PM

DIRECTV12 Part 7

Edited by gct, 23 August 2009 - 04:34 PM.



#9 OFFLINE   Gary Toma

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Posted 23 August 2009 - 04:37 PM

DIRECTV11


#10 OFFLINE   Gary Toma

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Posted 23 August 2009 - 04:38 PM

DIRECTV10


#11 OFFLINE   Gary Toma

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Posted 23 August 2009 - 04:40 PM

Spaceway 2

Edited by gct, 07 September 2009 - 01:21 PM.
added SW2 CONUS map



#12 OFFLINE   Gary Toma

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Posted 23 August 2009 - 04:42 PM

Spaceway 1

Edited by gct, 07 September 2009 - 01:20 PM.
added SW1 CONUS map



#13 OFFLINE   Gary Toma

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Posted 23 August 2009 - 04:45 PM

DIRECTV D9S Part 1


#14 OFFLINE   Gary Toma

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Posted 23 August 2009 - 04:47 PM

DIRECTV D9S Part 2


#15 OFFLINE   Gary Toma

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Posted 23 August 2009 - 04:49 PM

DIRECTV D9S Part 3


#16 OFFLINE   Gary Toma

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Posted 23 August 2009 - 04:50 PM

DIRECTV D9S Part 4


#17 OFFLINE   Gary Toma

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Posted 23 August 2009 - 04:51 PM

DIRECTV D8


#18 OFFLINE   Gary Toma

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Posted 24 August 2009 - 12:25 PM

The isobar signal levels indicate:

[table="head"]

Level

|

Color


57.5 dBw|Green|
55.5 dBw|Blue|
53.5 dBw|White|
51.5 dBw|Pink|
49.5 dBw|Yellow|
44.5 dBw|Orange|
39.5 dBw|Red|
29.5 dBw|Burgundy|
[/table]

Caveat: The illustrations are signal levels at full power. The actual power used in normal operation is one more factor used to control the beam.

Edited by gct, 20 April 2010 - 01:12 PM.



#19 OFFLINE   Gary Toma

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Posted 08 September 2009 - 06:16 PM

See Post #1 for an explanation of these new BSS platforms at 99WL, 103WL, 107WL and 111WL.

EDIT: 9/11/09 - See post #37 in this thread. The authorization for 107Wl was surrendered on 8/27/09. But authorizations for the other three sats had bonds of $3 million each paid during 8/25/09 to 8/27/09.

Edited by gct, 19 April 2010 - 01:28 PM.
Changed Filing Status



#20 OFFLINE   Gary Toma

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Posted 11 September 2009 - 03:31 PM

See the attached FCC Document.

Thanks to spears61 for the heads up...


--Note this is a partial document, showing only DIRECTV related information--








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