Federal Communications Commission
Before the
Federal Communications Commission
Washington, D.C. 20554
In the Matter of
SkyTerra Subsidiary LLC
Application for Modification Authority for an 
Ancillary Terrestrial Component 
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File No.   SAT-MOD-20090429-00047
Call Sign: AMSC-1  
File No.   SAT-MOD-20090429-00046
Call Sign: S2358
File No.   SES-MOD-20090429-00536
Call Sign: E980179
ERRATUM
Released:  April 2, 2010 
By the Chief, Satellite Division, International Bureau:
On March 26, 2010, the International Bureau released an Order, DA 10-534, in the above-captioned 
proceeding.  This Erratum corrects the Order as indicated below:
1. The word “the” and the phrase “via MSAT-1, MSAT-2, and the Inmarsat satellites” are 
deleted from the first sentence in paragraph 6.
2. The sentence enclosed in parenthesis in footnote 23 is corrected by changing “26.9 
dBW/200kHz” to “25.9 dBW/200kHz.”
3. The last clause of the last sentence in paragraph 40 is corrected by changing “1 MHz” to “2 
MHz.”
4. The fifth sentence in paragraph 45 is corrected to read as follows:
SkyTerra and the USGPS informed the Commission that they were in 
agreement that SkyTerra’s proposed indoor ATC femtocells should limit the 
PSD of emissions in the 1559-1605 MHz band to -114.7 dBW/MHz and that 
PC data cards transmitting to such femtocells should limit PSD in that 
frequency band to -111.7 dBW/MHz.
5. Subparagraph d in paragraph 46 is corrected to read as follows:
d.  PSD from any ATC femtocell authorized herein shall not exceed -114.7 
dBW/MHz in the 1559-1605 MHz band. PSD from a PC data card shall not 
exceed -111.7 dBW/MHz in the 1559-1605 MHz band while transmitting to 
any such femtocell.
FEDERAL COMMUNICATIONS COMMISSION
Robert G. Nelson
Chief, Satellite Division, International Bureau