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 NEWS  Federal  Communications  Commission  445  12  th  Street,  S.  W.  Washington,  D.  C.  20554  This  is  an  unofficial  announcement  of  Commission  action.  Release  of  the  full  text  of  a  Commission  order  constitutes  official  action.  See  MCI  v.  FCC.  515  F  2d  385  (D.  C.  Circ  1974).  News  Media  Information  202  /  418-  0500  Internet:  http://  www.  fcc.  gov  TTY:  1-  888-  835-  5322 
 FOR  IMMEDIATE  RELEASE  NEWS  MEDIA  CONTACT:  March  10,  2005  Bruce  Romano  at  (202)  418-  2124 
 FCC  ADOPTS  WAIVER  OF  ITS  EMISSION  MEASUREMENT  PROCEDURES  FOR  ULTRA-  WIDEBAND  TRANSMISSION  SYSTEMS 
 Washington,  D.  C.  –  The  Federal  Communication  Commission  (FCC)  adopted  an  Order  in  ET  Docket  No.  04-  352  permitting  radiated  emissions  from  ultra-  wideband  (UWB)  transmitters 
 to  be  measured  while  the  transmitter  is  in  its  normal  operating  mode.  This  waiver  responds  to  the  petition  filed  by  the  Multi-  band  OFDM  Alliance  Special  Interest  Group.  The  waiver 
 provides  greater  flexibility  and  innovation  in  designing  UWB  devices. 
 The  Commission  previously  established  regulations  permitting  the  marketing  and  operation  of  products  incorporating  UWB  technology.  Because  UWB  devices  operate  on  the 
 same  frequency  bands  used  by  licensed  stations,  the  Commission  established  a  conservative  procedure  to  measure  the  levels  of  radio  frequency  emissions  generated  by  these  devices.  UWB 
 transmitters  that  employ  frequency  hopping  techniques  must  be  measured  with  the  hop  stopped  and  the  transmitter  operating  in  a  continuous  mode;  UWB  transmitters  that  gate  the  emissions  on 
 and  off  must  be  measured  with  the  emissions  gated  on.  These  procedures  can  result  in  measured  emission  levels  that  are  greater  than  the  UWB  signal  levels  under  actual  operation. 


 In  today’s  Order,  the  Commission  is  providing  a  waiver  of  the  existing  measurement  procedure,  permitting  emissions  from  UWB  transmitters  to  be  determined  with  the  transmitter 
 operating  normally.  The  Commission  concluded  that  this  would  not  result  in  increased  harmful  interference  to  licensed  radio  operations.  This  waiver  applies  only  to  indoor  or  handheld  UWB 
 devices.  Further,  UWB  devices  utilizing  this  waiver  may  not  operate  within  the  5030-  5650  MHz  band  used  for  aircraft  landing  systems  and  for  weather  radars.  A  decision  to  permit  this  waiver 
 to  apply  to  UWB  devices  that  operate  within  the  5030-  5650  MHz  band  will  be  made  upon  the  completion  of  the  interference  investigation  being  performed  by  the  Institute  for 
 Telecommunication  Sciences.  The  waiver  is  effective  until  the  Commission  finalizes  a  rule  making  proceeding  dealing  with  these  measurement  issues. 


 Action  by  the  Commission  March  10,  2005,  by  Order  in  ET  04-  352  (FCC  05-  58).  Chairman  Powell,  Commissioners  Abernathy,  Copps,  Martin,  and  Adelstein. 
 OET  Contact:  John  Reed,  Telephone:  (202)  418-  2455,  E-  mail:  john.  reed@  fcc.  gov 
 ET  Docket  No.  04-  352  -  FCC  – 
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