Federal Communications Commission
Washington, D.C. 20554
DA 07-271
January 26, 2007
Mr. Robert J. Miller
Gardere Wynne Sewell LLP
1601 Elm Street
Suite 3000
Dallas, TX 75201
Re: Call Sign E060375
File No. SES-LIC-20061011-01829
Dear Mr. Miller:
On October 11, 2006, Schlumberger Technology Corporation (Schlumberger) filed the above-
captioned application to operate twenty earth stations aboard vessels (ESV) in the Fixed Satellite 
Service (FSS). The network will communicate with ALSAT-designated satellites in the 
conventional Ku-band.1 Pursuant to Section 25.112(a)(1) of the Commission’s rules, 47 C.F.R. 
§25.112(a)(1), we dismiss this application as defective without prejudice to refiling.
Specifically, Schlumberger indicates that its proposed ERA Model KU12LR antenna exceeds the 
envelope specified in Section 25.209 of the Commission’s rules, 47 C.F.R. §25.209, between 1.5 
and 6.0 degrees offset angle from the boresight.2  Schlumberger proposes to operate this antenna 
with a maximum power density at the antenna flange not to exceed -19 dBW/4 kHz.3  This is 
inconsistent with the information in Schedule B of the application which proposes to operate at a 
higher level.  Specifically, in response to item E49 of Schedule B, Schlumberger indicates that the 
Maximum EIRP density per Carrier is 28.3 dBW/4kHz.  However, in response to item E41/42, 
Schlumberger indicates that the antenna gain is 43 dBi.  Based on these values, we compute a 
maximum power density at the input of the antenna flange to be -14.7 dBW/4 kHz rather than the 
-19 dBW/4kHz Schlumberger provides.
Additionally, based on the antenna patterns provided in Exhibit 4 of the application and the 
Maximum EIRP density provided in Schedule B, our analysis indicates that the proposed ESV 
will exceed the off-axis EIRP density limit of Section 25.222(a) of the Commission’s rules, 47 
C.F.R. §25.222(a). 
Further, in response to item E50, Schlumberger indicates that when using a QPSK FEC ½  256
kbps modulation, the maximum EIRP per carrier will be 47.8 dBW and 41.8 dBW for 65 kbps
modulation.  Since this power level associated with the 256 kbps modulation exceeds that of the 
65 kbps emission, Schlumberger must file all the associated parameters (E47, E48, and E49) for 
its 256 kbps data rate emission.  
  
1 11.7-12.2 and 14.0-14.5 GHz bands.
2 Form 312 Exhibit 4, Antenna Radiation Patterns.
3 Ibid.
 Federal Communications Commission               DA 07-271
2
Accordingly, pursuant to Section 25.112(a)(1) of the Commission’s Rules, 47 C.F.R. 
25.112(a)(1), and Section 0.261 of the Commission’s rules on delegations of authority, 47 C.F.R.
§0.261, we dismiss Schlumberger’s application without prejudice to refiling.4
 Sincerely,
Scott A. Kotler
Chief, System Analysis Branch
Satellite Division
International Bureau
  
4 If Schlumberger refiles an application identical to the one dismissed, with the exception of supplying the corrected 
information, it need not pay an application fee.  See 47 C.F.R. Section 1.1109(d).