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 Federal  Communications  Commission  Washington,  D.  C.  20554 
 DA  06-  129 
 January  23,  2006 


 Mr.  Noel  Imitz  C5  Communications,  LLC 
 4212  San  Felipe  St.  Houston,  TX  77027 
 Re:  File  No.  SES-  STA-  20051107-  01528 


 Dear  Mr.  Imitz: 
 On  November  4,  2005,  C5  Communications,  LLC  (C5)  requested  Special  Temporary  Authorization  (STA)  to  operate  a  1.0  meter  Ku-  Band  1  earth  station  on  board  a  vessel  (ESV). 
 Specifically,  the  ESV  will  be  operated  on  a  Singapore-  registered  vessel  in  the  Atlantic  Ocean,  Gulf  of  Mexico,  Caribbean  Sea,  and  navigable  inland  waterways,  but  no  closer  than  150  km  of 
 the  areas  discussed  in  Sections  25.222(  d)  and  (e)  of  the  Commission’s  rules,  47  C.  F.  R.  §§  25.222(  d)  and  (e).  The  ESV  will  access  the  SATMEX-  5  satellite  at  116.8  o  W.  L.  and  will  operate 
 through  a  hub  earth  station  licensed  to  Loral  Skynet  Network  Services,  Inc.  2 
 The  Commission  does  not  have  the  authority  to  issue  a  license  under  Title  III  of  the  Communications  Act  to  an  ESV  applicant  who  seeks  authority  to  operate  on  a  foreign-  registered 
 vessel.  However,  if  the  Administration  of  Singapore  authorizes  this  earth  station,  the  ESV  can  operate  within  the  waters  of  the  United  States  provided  those  operations  comply  with  the 
 Commission’s  Ku-  band  ESV  rule,  Section  25.222  of  the  Commission’s  rules,  47  C.  F.  R.  §§  25.222. 


 In  light  of  the  above,  we  are  dismissing  C5’s  STA  Request,  IBFS  File  No.  SES-  STA-  20051107-  01528,  as  moot. 
 Nevertheless,  we  take  this  opportunity  to  inform  you  that  based  on  our  review  of  the  information  provided  in  the  request,  the  proposed  operations  do  not  comply  with  Commission  rules  for  the 
 following  reasons:  the  proposed  ESV  emissions  exceed  the  off-  axis  EIRP  density  limits  in  Section  25.222(  a)(  1)  and  (2);  and  second,  the  time  required  for  the  ESV  to  cease  emissions  if  the 
 angle  between  the  orbital  location  of  the  target  satellite  and  the  axis  of  the  main  lobe  of  the  ESV  antenna  exceeds  0.5  degrees  does  not  comply  with  the  limit  in  Section  25.222(  a)(  7). 


 1  11.  7-  12.2  and  14.  0-  14.  5  GHz  Bands. 
 2  See  IBFS  File  No  SES-  LIC-  19980223-  00223,  Call  Sign  E980149,  for  the  current  authorization  of  the 
 Loral  Skynet  Network  Services,  Inc.  Earth  Station. 
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 Federal  Communications  Commission  DA  06-  129 
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 To  operate  in  compliance  with  Commission  rules,  the  maximum  input  power  density  into  the  ESV’s  antenna  flange  should  be  -21  dBW/  4  kHz.  Furthermore,  if  a  mispointing  of  the  antenna  is 
 greater  than  0.5  degrees,  C5  must  be  able  to  detect  and  cease  ESV  transmissions  within  100  milliseconds. 


 Sincerely, 


 Scott  A.  Kotler  Chief,  Systems  Analysis  Branch 
 Satellite  Division  International  Bureau 
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