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 Federal  Communications  Commission  FCC  03-  90 
 1 
 Before  the  Federal  Communications  Commission 
 Washington,  D.  C.  20554 


 In  the  Matter  of 
 Amendment  of  Part  2  of  the  Commissions  Rules  to  Realign  the  76-  81  GHz  band  and  the  Frequency 


 Range  Above  95  GHz  Consistent  with  International  Allocation  Changes 


 Amendment  of  Part  2  of  the  Commissions  Rules  to  Allocate  Additional  Spectrum  to  the  Inter-Satellite, 
 Fixed,  and  Mobile  Services  and  to  Permit  Unlicensed  Devices  to  Use  Certain  Segments  in 
 the  50.2-  50.4  GHz  and  51.4-  71.  0  GHz  Bands 


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 ET  Docket  No.  03-  102 
 ET  Docket  No.  99-  261 


 NOTICE  OF  PROPOSED  RULE  MAKING 
 Adopted:  April  16,  2003  Released:  April  28,  2003 
 Comment  Date:  60  days  from  publication  in  the  Federal  Register  Reply  Comment  Date:  90  days  from  publication  in  the  Federal  Register 


 By  the  Commission: 
 INTRODUCTION 
 1.  By  this  Notice  of  Proposed  Rule  Making  (  Notice),  we  propose  to  reallocate  spectrum  in  the  76-  81  GHz  frequency  band  and  the  frequency  bands  above  95  GHz  to  make  the  United  States 


 domestic  and  international  frequency  allocation  changes  consistent  with  each  other  in  the  bands  above  71  GHz.  1  The  realignment  of  allocations  that  we  propose  herein  is  consistent  with  the  international 
 allocation  changes  made  at  the  World  Radiocommunication  Conference  (Istanbul,  2000)  (  WRC-  2000).  The  primary  intent  of  the  WRC-  2000  realignment  was  to  place  scientific  services,  such  as  the  Earth-exploration 
 satellite  (  EESS)  and  radio  astronomy  (  RAS)  services,  in  spectrum  better  suited  to  their  needs.  2  This  Notice  also  continues  our  efforts  to  promote  the  development  and  growth  of  the  millimeter 


 1  Domestic  changes  for  the  71-  76  GHz,  81-  86  GHz,  and  92-  95  GHz  bands  were  previously  proposed  by  the 
 Commission.  See  Allocations  and  Service  Rules  for  the  71-  76  GHz,  81-  86  GHz  and  92-  95  GHz  Bands,  Notice  of  Proposed  Rule  Making,  WT  Docket  No.  02-  146,  FCC  17  Rcd  12182,  (2002)  (  70/  80/  90  GHz  Notice).  We  will  not 


 consider  any  of  the  proposals  or  revisions  made  in  these  bands  since  to  date  the  Commission  has  not  adopted  any  of  the  proposed  rules  or  revisions  in  the  70/  80/  90  GHz  Notice.  The  allocations  in  the  international  table  and  United 
 States  table  for  the  band  86-  92  GHz  already  conform. 
 2  For  example,  particular  bands  are  needed  for  the  radio  astronomy  service  to  satisfy  requirements  for  spectral  line 
 and  wideband  continuum  observations. 
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 wave  spectrum.  3  In  addition,  to  protect  passive  services  in  the  55.78-  56.26  GHz  band,  we  propose  to  adopt  the  limit  for  maximum  power  spectral  density  that  can  be  delivered  to  a  fixed  service  transmitter 
 antenna  set  forth  in  the  United  States  proposal  to  WRC-  2000.  The  Commission  previously  deferred  action  on  adopting  such  a  limit.  4  We  believe  that  the  proposals  set  forth  herein  will  promote  future 
 developments  in  technology  and  equipment,  position  scientific  services  to  increase  our  understanding  of  physical  phenomena,  and  provide  consumers  with  access  to  new  products  and  communications  services. 


 BACKGROUND 
 2.  The  EESS  (passive)  includes  passive  radio  sensing  operations  that  have  many  applications  in  agriculture,  weather  forecasting,  and  the  study  of  global  changes  of  the  Earth  and  its 


 environment.  5  Passive  sensing  is  a  remote  sensing  technique  that  is  based  on  detecting  available  electromagnetic  energy  from  natural  sources,  such  as  the  surface  of  the  Earth  and  its  atmosphere.  Passive 
 sensors  detect  naturally  reflected  or  radiated  energy  from  the  Earths  surface  at  some  altitude  above  the  ground  and  use  the  amount  of  energy  emitted,  transmitted,  or  reflected  to  observe  and  measure  objects 
 from  a  distance  in  order  to  determine  certain  physical  properties  of  the  object.  Many  parameters,  such  as  temperature  and  water  vapor  profiles,  and  the  concentration  of  ozone  and  other  trace  gases  that  are 
 radiantly  and  chemically  active  can  be  measured  regionally  and  globally  only  by  passive  sensors  aboard  satellites.  The  frequency  range  above  71  GHz  is  well  suited  to  many  of  these  applications  due  to  its 
 bandwidth  and  propagation  characteristics. 
 3.  Similarly,  the  radio  astronomy  service  is  a  passive  service  that  receives  radio  waves  of  cosmic  origin  to  better  understand  our  universe.  The  millimeter  wavelength  range  was,  until  recently,  one 


 of  the  few  spectral  regions  not  fully  explored  by  astronomers  because  of  the  special  observing  conditions  and  instruments  required.  Recently,  astronomical  research  has  become  increasingly  active  in  this  spectral 
 range,  because  it  is  particularly  well  suited  for  studies  of  star  formation,  the  properties  of  the  interstellar  medium,  the  chemical  evolution  of  the  Universe,  detection  of  extra-  solar  planets  and  many  other 
 phenomena.  US  astronomers  built  and  operate  several  large  single  dish  telescopes  and  interferometers  operating  in  this  spectral  range.  Further,  a  giant  millimeter  telescope,  that  is  going  to  be  the  fastest  and 
 most  sensitive  telescope  at  mm  and  sub-  mm  wavelengths,  is  being  built  by  the  US  and  a  consortium  of  European  countries. 


 4.  Almost  all  current  spaceborne  passive-  sensing  and  radio  astronomy  allocations  in  the  range  71-  275  GHz  were  established  at  the  1979  World  Administrative  Radio  Conference  (  WARC-  79) 
 and  were  codified  in  the  Commissions  Rules  in  January  1984.  6  Since  then,  there  have  been  many  advances  in  our  scientific  understanding  of  passive  sensing  and  radio  astronomy  and  their  requirements  in 


 3  The  term  millimeter  wave  derives  from  the  wavelength  of  radio  signals  at  frequencies  between  30  GHz  and 
 300  GHz,  which  range  between  1  millimeter  at  300  GHz  and  10  millimeters  at  30  GHz. 
 4  See  Amendment  of  Part  2  of  the  Commissions  Rules  to  Allocate  Additional  Spectrum  to  the  Inter-  Satellite,  Fixed, 
 and  Mobile  Services  and  to  Permit  Unlicensed  Devices  to  Use  Certain  Segments  in  the  50.2-  50.  4  GHz  and  51.4-  71.  0  GHz  Bands,  Report  and  Order  in  ET  Docket  No.  99-  261,  15  FCC  Rcd  25264  (2000). 


 5  For  example,  passive  sensing  techniques  can  be  used  to  assess  climate  and  weather  changes  of  the  Earth  and  its 
 environment. 
 6  See  Amendment  of  Part  2  of  the  Commissions  Rules  Regarding  Implementation  of  the  Final  Acts  of  the  World 
 Administrative  Radio  Conference,  Geneva,  1979,  Second  Report  and  Order,  Gen  Docket  No.  80-  739,  49  FR  2357  (January  19,  1984).  Examples  of  passive  services  include  remote  sensing  and  meteorological  observations;  see  also 


 Final  Acts  of  the  World  Administrative  Radio  Conference  (WARC-  79). 
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 terms  of  technology  and  appropriate  frequency  bands.  The  1997  World  Radiocommunication  Conference  (  WRC-  97)  realigned  allocations  in  the  50.2-  71  GHz  range  in  a  way  that  allows  passive  services  to  make 
 better  use  of  the  band  while  still  providing  spectrum  for  other  users.  7  Now,  passive  service  advocates  are  expressing  substantial  interest  in  using  frequencies  in  the  range  above  71  GHz.  In  addition,  proponents  of 
 active  radio  services  8  are  interested  in  the  frequency  bands  above  71  GHz  because  the  available  bandwidth  would  permit  high  data  rate  transmissions  and  the  propagation  characteristics  would  allow  for 
 extensive  frequency  reuse.  9  WRC-  2000  reallocated  spectrum  above  71  GHz  to  ensure  that  the  allocations  in  this  region  of  the  spectrum  are  better  aligned  with  potential  applications.  10 


 5.  Previously,  the  Commission  proposed  allocation  changes  for  some  bands  above  71  GHz.  In  the  70/  80/  90  GHz  Notice,  the  Commission  proposed  to  reallocate  the  71-  76  GHz,  81-  86  GHz,  92-  94 
 GHz  and  94.1-  95  GHz  bands  in  accordance  with  the  1992  Final  Acts  of  the  World  Administrative  Radio  Conference  for  Dealing  with  Frequency  Allocations  in  Certain  Parts  of  the  Spectrum  (  WARC-  92  Final 
 Acts)  and  most  of  the  WRC-  2000  Final  Acts.  11  In  addition,  the  Commission  proposed  service  rules  to  allow  for  a  broad  range  of  licensed  fixed  and  mobile  services  and  unlicensed  uses  in  the  71-  76  GHz,  81-86 
 GHz,  and  92-  95  GHz  bands.  As  discussed  below,  we  find  that  the  proposals  of  this  proceeding  will  not  impact  the  proposals  in  the  70/  80/  90  GHz  Notice. 


 6.  We  also  note  that  in  1995,  the  76-  77  GHz  band  was  made  available  for  use  by  vehicle  radar  systems  on  an  unlicensed  basis  under  Part  15  of  our  Rules.  12  This  action  received  significant 
 industry  support  in  an  effort  to  develop  collision  avoidance  radars  for  vehicles.  The  Commission  found  that  the  76-  77  GHz  band  was  ideal  for  unlicensed  collision  avoidance  radars  because:  1)  the  propagation 
 characteristics  would  reduce  the  probability  of  interference  between  vehicle  radar  units;  2)  this  band  would  reduce  manufacturing  costs;  and  3)  the  band  provided  sufficient  spectrum  needed  for  tracking 
 edges  of  roads  and  proper  operation. 
 7.  To  date,  few  systems  have  been  implemented  in  the  frequency  bands  under  consideration  herein.  A  review  of  the  Commissions  and  Federal  Governments  databases  provides  information  about 
 the  current  spectrum  usage,  as  shown  in  Table  1,  below. 


 7  See  Final  Acts  of  the  World  Radiocommunication  Conference  (WRC-  97). 
 8  Active  sensing  is  a  remote  sensing  technique  that  provides  its  own  energy  source  for  illumination.  The  active 
 sensor  emits  radiation  which  is  directed  toward  the  target  to  be  investigated.  The  radiation  reflected  from  that  target  is  detected  and  measured  by  the  sensor.  See  www.  sbg.  ac.  at/  geo/  idrisi/  ccrs_  tutorial/  www.  ccrs.  nrcan.  gc.  ca/ 


 ccrs/  eduref/  tutorial/  chap1/  c1p6e.  html#  c1p6_  i1. 
 9  The  frequency  above  71  GHz  is  characterized  as  having  short  propagation  distances,  narrow  beamwidth,  and  high 
 directivity  while  using  small  antennas.  The  ability  to  operate  many  highly  directive  antennas  in  an  area  results  in  high  spectrum  reuse  and  high  user  density. 


 10  See  Final  Acts  of  the  World  Radiocommunication  Conference  (WRC-  2000). 
 11  See  Final  Acts  of  the  World  Administrative  Radio  Conference  for  Dealing  with  Frequency  Allocations  in  certain 
 Parts  of  the  Spectrum  (WARC-  92).  12 
 See  Amendment  of  Parts  2,  15,  and  97  of  the  Commissions  Rules  to  Permit  Use  of  Radio  Frequencies  Above  40  GHz  for  New  Radio  Applications,  First  Report  and  Order  and  Second  Notice  of  Proposed  Rule  Making,  ET  Docket 


 No.  94-  124,  11  FCC  Rcd  4481  (1995). 
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 Table  1:  Federal  Government  and  Non-  Federal  Government  Uses  of  the  Bands  Above  76  GHz 
 Band  (GHz)  Federal  Government  Authorizations  Non-  Federal  Government  Licenses 
 76-  81  0  8  experimentals  95-  300  1  experimental 


 2  radio  astronomy  13  experimentals  Total  1  experimental 
 2  authorizations  21  experimentals 


 The  database  includes  Federal  Government  operations  at  two  radio  astronomy  stations  in  the  95-  300  GHz  bands  from  one  site.  Specifically,  it  includes  the  National  Science  Foundation  (now  operated  by  the 
 University  of  Arizona)  operations  of  a  radio  astronomy  observatory  at  Kitt  Peak,  AZ,  which  receives  signals  from  space  in  the  130-  170  GHz  and  200-  305  GHz  bands.  The  database  also  includes  a  Federal 
 Government  assignment,  through  the  National  Aeronautics  and  Space  Administration  (NASA),  to  operate  an  experimental  station  centered  at  245.52  GHz  at  Wallops  Island,  VA  to  determine  the  amount  of  rainfall 
 contained  in  and  around  Wallops  Island.  It  should  be  noted  that  while  passive  users  can  register  their  operations,  they  are  not  obligated  to  do  so.  Many  of  these  passive  operations  are  in  bands  in  which 
 emissions  are  prohibited  so  there  has  been  minimal  reason  to  register.  Some  of  the  NASA  and  NOAA  passive  missions  onboard  satellites  are  as  follows: 


 Mission  Instrument  Channel  Center  Frequencies  AQUA  AMSR-  E 
 AMSU  HSB  89  GHz  89,  183  GHz  89,  150,  183,  188  GHz 
 NPOESS  ATMS  CMIS  89,  164,  183  GHz  89,  166,  183  GHz 
 JASON  JMR  201  GHz  TRMM  TMI  89  GHz 
 AURA  MLS  118,  190,  236,  640,  2500  GHz  NOAA-  K,  L,  M  AMSU-  A 
 AMSU-  B  89  GHz  89,  150,  183  GHz  NOAA-  N,  N  AMSU-  A 
 MHS  89  GHz  89,  157,  183  GHz  NPOESS  Preparatory  Project  ATMS  89,  164,  183  GHz 


 Additionally,  the  following  government  radio  astronomy  sites  operated  or  intend  to  operate  in  the  near  future  in  this  range  in  the  US&  P: 
 10  VLBA  stations    up  to  100  GHz    (for  a  list  see,  e.  g.  US311)  In  a  few  years  (2-  3)  the  Green  Bank  Telescope  may  operate  up  to  90-  100  GHz 


 Non-  Federal  Government  entities  use  spectrum  above  76  GHz  to  conduct  experimental  operations,  such  as  antenna  testing,  development  of  collision  avoidance  systems  for  automobiles,  and  development  of 
 point-  to-  point  millimeter-  wave  systems. 
 DISCUSSION 
 8.  We  initiate  this  proceeding  at  the  request  of  the  National  Telecommunications  and  Information  Administration  (  NTIA).  13  NTIA  has  completed  a  review  of  the  results  of  WRC-  2000  and 


 13  See  Letter  to  Acting  Chief,  Office  of  Engineering  and  Technology  from  the  Associate  Administrator,  Office  of 
 Spectrum  Management  at  NTIA,  July  18,  2001.  We  note  that  upon  staff  review  it  was  found  that  the  primary  (continued....) 
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 now  recommends  changes  to  the  U.  S.  Table  of  Frequency  Allocations  (  Table)  for  frequency  bands  above  71  GHz  based  on  coordination  with  the  Interdepartment  Radio  Advisory  Committee  (  IRAC).  14 
 The  proposals  in  this  Notice  are  largely  based  on  the  WRC-  2000  changes  and  the  research  and  planning  of  NTIA. 


 A.  Reallocation  of  the  Frequency  Bands  Above  76  GHz 
 9.  The  primary  need  for  realigning  spectrum  above  76  GHz  is  to  accommodate  the  requirements  of  the  radio  astronomy  service  (  RAS)  and  the  Earth-  exploration  satellite  service  (passive) 


 (  EESS).  15  Specifically,  RAS  must  operate  in  bands  that  meet  the  requirements  for  spectral  line  16  and  wideband  continuum  observations.  17  Additionally,  the  EESS  must  operate  in  bands  that  are  optimal  for 


 (...  continued  from  previous  page)  allocation  for  the  radiolocation  service  in  the  78-  79  GHz  and  79-  81  GHz  bands  were  left  out  of  the  Federal 
 Government  Table  in  NTIAs  recommendations  for  WRC-  2000.  This  was  an  inadvertent  omission  and  has  been  put  back  into  the  above  mentioned  bands  for  proposal.  The  Commission  has  been  developing  service  rules  for  the  upper 
 millimeter  wave  frequencies  since  1994,  when  the  Commission  initiated  on  its  own  motion  Docket  No.  94-  124.  See  Amendment  of  Parts  2  and  15  of  the  Commissions  Rules  to  Permit  Use  of  Radio  Frequencies  Above  40  GHz  for 
 New  Radio  Applications,  Notice  of  Proposed  Rule  Making,  ET  Docket  No.  94-  124,  9  FCC  Rcd  7078  (1994)  (  Above  40  GHz  Notice).  See  also  Amendment  of  Parts  2,  15,  and  97  of  the  Commissions  Rules  to  Permit  Use  of  Radio 
 Frequencies  Above  40  GHz  for  New  Radio  Applications,  Third  Report  and  Order,  ET  Docket  No.  94-  124,  13  FCC  Rcd  15074  (1998). 


 14  IRAC  is  composed  of  a  main  committee,  and  5  subcommittees  that  consider  various  aspects  of  spectrum 
 management  policy.  IRAC  is  a  body  that  consists  of  23  agencies,  with  an  FCC  staff  person  as  the  liaison  for  IRAC.  The  basic  functions  of  the  IRAC  are  to  assist  the  Assistant  Secretary  in  assigning  frequencies  to  U.  S.  Government 


 radio  stations  and  in  developing  and  executing  policies,  programs,  procedures,  and  technical  criteria  pertaining  to  the  allocation,  management,  and  use  of  the  spectrum.  For  further  information  visit  IRACs  website  at 
 http://  www.  ntia.  doc.  gov/  osmhome/  irac.  html. 
 15  Radio  Astronomy  is  based  on  the  reception  of  radio  waves  of  cosmic  origin.  The  EESS  is  a  radiocommunication 
 service  between  earth  stations  and  one  or  more  space  stations,  which  may  include  links  between  space  stations,  in  which:  (1)  Information  relating  to  the  characteristics  of  the  Earth  and  its  natural  phenomena  is  obtained  from  active 


 sensors  or  passive  sensors  on  earth  satellites;  (2)  Similar  information  is  collected  from  air-  borne  or  earth-  based  platforms;  (3)  Such  information  may  be  distributed  to  earth  stations  within  the  system  concerned;  and  (4)  Platform 
 interrogation  may  occur. 
 16  A  spectral  line  is  electromagnetic  radiation  given  off  at  a  specific  frequency  by  an  atom  or  molecule.  Each  type  of 
 atom  or  molecule  gives  off  radiation  at  its  own  unique  set  of  frequencies;  thus,  astronomers  can  explore  the  properties  of  stars,  interstellar  matter  or  other  celestial  bodies  containing  a  particular  molecule  by  tuning  a  radio 


 telescope  to  one  of  its  characteristic  frequencies.  For  example,  carbon  monoxide  (CO)  has  a  spectral  line  at  115  GHz  (or  a  wavelength  of  2.7  mm).  Over  2100  spectral  lines  of  80  chemical  compounds  have  been  identified  in  the  71-275 
 GHz  range,  and  more  have  been  predicted.  Astronomers  are  interested  in  preserving  access  to  as  many  spectral  lines  as  possible,  because  they  may  yield  unique  information  about  a  host  of  phenomena  in  the  Universe. 
 See  http://  imagine.  gsfc.  nasa.  gov/  docs/  dictionary.  html. 
 17  The  spectrum  of  the  celestial  radio  waves  reaching  the  earth  contains  a  broad  continuum  that  covers  the  whole 
 range  of  frequencies  that  can  penetrate  the  earths  atmosphere.  The  continuum  arises  mainly  from  two  mechanisms:  (1)  thermal  emission,  the  intensity  of  which  is  proportional  to  the  temperature;  and  (2)  non-  thermal  emission,  mostly 


 produced  by  the  synchrotron  process,  in  which  very  high-  speed  electrons  spiral  around  magnetic-  field  lines.  Studying  the  continuum  emissions  of  celestial  bodies,  astronomers  can  determine  their  temperature,  magnetic  field 
 and  other  properties.  See,  e.  g.,  http://  www7.  nationalacademies.  org/  bpa/  projects_  corf_  view1195.  pdf 
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 microwave  limb  sounding  and  nadir  sounding  of  water  vapor  and  other  atmospheric  constituents.  18  Therefore,  we  propose  to  incorporate  the  changes  from  WRC-  2000  for  the  76-  81  GHz  and  95-  300  GHz 
 bands  into  our  domestic  frequency  allocation  table.  This  action  will  promote  consistency  to  the  greatest  extent  possible  between  our  domestic  Table  of  Frequency  Allocations  (  Table)  19  and  the  International 
 Table  of  Frequency  Allocations  maintained  by  the  International  Telecommunication  Union  (  ITU),  and  will  align  RAS  and  EESS  operations  with  spectrum  that  best  suits  their  needs.  20 


 10.  Table  2,  infra,  presents  the  existing  and  proposed  U.  S.  allocations  in  the  frequency  bands  above  71  GHz,  based  upon  WRC-  2000  results.  The  status  of  the  services  allocated  in  a  frequency  band 
 are  indicated  following  the  same  format  as  that  of  the  Table,  i.  e.,  primary  services  are  indicated  in  all  capital  letters  (e.  g.,  FIXED)  and  secondary  services  are  indicated  in  normal  characters  (e.  g.,  Mobile). 
 Also,  Federal  Government  (  Federal)  and  non-  Federal  Government  (  non-  Federal)  allocations  in  Table  2  are  identical,  unless  otherwise  specified.  An  exception  is  that  amateur,  amateur-  satellite,  broadcasting, 
 and  broadcasting-  satellite  services  are  allocated  only  for  non-  Federal  use.  We  note  that  the  reduction  in  Government  radiolocation  allocation  in  the  bands  78-  79  GHz  and  79-  81  GHz,  and  the  removal  of  the 
 fixed  and  mobile  services  from  the  band  275-  300  GHz  is  proposed,  but  not  as  a  result  of  WRC-  2000. 
 11.  This  realignment  would  have  little  impact  on  current  systems  because,  as  indicated  above,  few  systems  to  date  have  been  implemented  above  71  GHz.  Under  this  proposal,  the  amount  of 


 allocated  spectrum  available  to  most  services,  such  as,  amateur,  amateur-  satellite,  EESS,  fixed-  satellite  service  (  FSS),  inter-  satellite  service  (  ISS),  RAS,  radiolocation,  and  space  research  service  (  SRS) 
 would  either  increase  or  remain  unchanged.  However,  due  to  incompatibility  with  passive  sensor  operations,  the  amount  of  spectrum  allocated  for  a  few  services  would  decrease  by  an  insignificant 
 amount.  Specifically,  the  allocation  for  fixed  service  would  decrease  by  24.8  GHz  (  from  117  GHz  to  92.2  GHz),  mobile  service  would  decrease  by  24.8  GHz  (from  127  GHz  to  102.2  GHz),  mobile-  satellite 
 service  (  MSS)  would  decrease  by  2.3  GHz  (from  36  GHz  to  33.  7  GHz),  radionavigation  service  would  decrease  by  800  MHz  (from  36  GHz  to  35.2  GHz),  and  radionavigation-  satellite  service  (  RNSS)  would 
 decrease  by  800  MHz  (from  36  GHz  to  35.2  GHz).  We  find  that  these  proposals  will  not  impact  the  proposals  in  the  70/  80/  90  GHz  Notice.  In  that  Notice  the  Commission  proposed  changes  to  remove  RAS 
 and  any  protections  of  RAS  within  the  band  71-  74  GHz,  among  other  changes,  21  and  we  believe  that  the  changes  proposed  herein  would  not  affect  our  proposals  for  the  full  development  of  the  71-  76  GHz,  81-  86 
 GHz,  and  92-  95  GHz  bands.  We  seek  comment  on  the  proposed  changes.  In  light  of  the  increases  and  reductions  of  allocated  spectrum  for  the  various  affected  services,  commenters  should  address  whether  the 
 amount  of  spectrum  that  would  be  available  to  each  service  is  sufficient  to  satisfy  future  needs. 


 18  A  Microwave  Limb  Sounder  (  MLS)  measures  naturally-  occurring  microwave  thermal  emissions  from  the 
 Earth's  atmosphere  to  remotely  sense  vertical  profiles  of  selected  atmospheric  gases,  temperature  and  pressure.  For  example,  a  limb-  sounding  millimeter-  wave  radiometer  (183  GHz,  184  GHz,  and  204  GHz)  can  be  used  to  map 


 global  distributions  of  water  vapor,  ozone,  and  chlorine  monoxide. 
 19  See  47  C.  F.  R.    2.106  (Table  of  Frequency  Allocations)  for  the  complete  listing  of  existing  allocations  and 
 footnotes  to  the  Table. 
 20  We  note  that  most  of  the  proposed  RAS  and  EESS  allocations  herein  below  174.8  GHz  are  co-  primary  with  other 
 active  radio  services.  Licensed  services  will  have  to  share  with  the  passive  services  and  protect  them  in  many  cases.  For  the  RAS  case,  we  believe  that  the  impact  of  this  sharing  constraint  will  be  minimal  since  RAS  millimeter  wave 


 receivers  are  usually  located  on  high  mountains  in  order  to  escape  atmospheric  absorption  of  incoming  signals  from  space.  Such  receivers  are  in  rural  areas,  not  the  urban  areas  where  we  anticipate  most  use  of  these  bands  by  FCC-regulated 
 users.  21 
 See  supra  note  1  and  accompanying  text. 
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 12.  We  note  that  the  WRC-  2000  realignment  resulted  in  certain  bands  containing  RAS  and  satellite  downlink  service  allocations  in  the  same  band  or  in  adjacent  bands.  22  Typically,  there  are 
 spectrum  sharing  concerns  between  RAS  and  the  satellite  downlink  services  in  such  allocation  situations  because  the  satellite  downlink  services  can  transmit  downward  directly  into  sensitive  RAS  antennas. 
 Because  these  bands  may  not  be  used  for  satellite  downlink  applications  in  the  immediate  future,  we  do  not  think  incompatible  sharing  situations  will  arise.  We  also  note  that  whenever  possible,  it  is  desirable  to 
 maintain  consistency  with  the  international  table  of  frequency  allocations.  If  we  implement  these  allocations  as  proposed,  technical  sharing  criteria  may  be  developed  in  the  future  when  applications  are 
 developed.  Nevertheless,  we  seek  comment  on  the  viability  of  the  RAS  and  satellite  downlink  services  sharing  the  same  band  or  adjacent  bands.  Commenters  should  address  any  alternative  changes  to  the 
 proposed  allocation.  Commenters  should  also  address  any  possible  sharing  criteria  that  could  be  applied  to  promote  sharing  between  RAS  and  co-  channel  or  adjacent  channel  satellite  downlinks  services. 


 13.  Unlike  most  bands  under  consideration  in  this  proceeding  which  are  unused  or  lightly  used,  the  76-  77  GHz  band  is  currently  used  by  unlicensed  vehicle  radar  systems.  WRC-  2000  added  a 
 new  primary  radio  astronomy  allocation,  secondary  space  research  allocation,  and  secondary  amateur-satellite  allocation  to  the  76-  77  GHz  band.  In  ET  Docket  No.  94-  124,  the  radio  astronomy  community 
 expressed  concern  that  new  vehicular  radar  systems  could  cause  interference  to  radio  astronomy  operations  well  outside  of  the  76-  77  GHz  band.  23  However,  the  IEEE  Vehicular  Radar  Standards 
 Subcommittee  document  VRS-  96-  6  states  that  radio  astronomy  entities  typically  control  access  to  their  telescopes  at  a  distance  of  at  least  one  kilometer  to  provide  protection  from  interference  caused  by 
 automobile  spark  plugs  and  other  uncontrolled  RFI  sources.  24  This  implies  that  radio  astronomy  observatories  could  tolerate  low-  powered  emissions,  as  long  as  they  are  not  in  close  proximity  to  their 
 telescopes.  We  seek  comment  on  the  feasibility  of  spectrum  sharing  between  existing  vehicle  radar  systems  and  radio  astronomy,  space  research,  and  amateur  satellite  operations  in  this  band.  Commenters 
 should  focus  on  technical  limits  for  each  service  that  could  promote  same  band  operation.  In  addition,  commenters  should  address  possible  interference  mitigation  procedures  that  can  be  implemented  if  these 
 three  new  services  were  allocated  in  the  76-  77  GHz  band. 
 14.  Consistent  with  the  proposed  allocation  changes,  we  propose  to  update  several  footnotes  to  the  Table  (US74,  US211,  US246,  US263,  and  US342)  to  incorporate  all  the  proposed  bands  to  which 


 the  footnotes  would  apply.  Additionally,  we  propose  to  replace  international  footnotes  5.340  25  and 


 22  We  are  proposing  to  allocate  primary  RAS  and  FSS  (downlinks)  in  the  following  adjacent  bands:  RAS  at  130-  134 
 GHz  and  FSS  (Downlinks)  at  123-  130  GHz,  RAS  at  155.5-  158.  5  GHz  and  FSS  (downlinks)  at  158.  5-  164  GHz,  and  RAS  at  164-  167  GHz  and  FSS  (downlinks)  at  167-  168  GHz.  There  are  other  primary  satellite  downlink  services 


 (amateur-  satellite,  RNSS,  MSS,  and  ISS)  that  we  propose  to  allocate  on  a  co-  channel  or  adjacent  channel  basis  with  RAS.  We  also  note  that  although  there  are  also  secondary  allocations  where  RAS  is  in  the  same  band  or  adjacent 
 bands  with  a  secondary  satellite  downlink  service,  we  point  out  the  primary  service  allocations  since  the  secondary  service  allocations  have  to  protect  primary  allocations  from  interference. 
 23  See  Amendment  of  Parts  2,  15,  and  97  of  the  Commissions  Rules  to  Permit  Use  of  Radio  Frequencies  Above  40 
 GHz  for  New  Radio  Applications,  Third  Report  and  Order,  ET  Docket  No.  94-  124,  13  FCC  Rcd  15074  (1998).  See  also  Comments  of  the  National  Academy  of  Sciences  through  the  Committee  on  Radio  Frequencies  (  CORF)  dated 


 May  28,  1996.  CORF  commented  on  interference  issues  between  vehicle  radar  systems  and  radio  astronomy  services  in  the  217-  231  GHz  band. 
 24  See  IEEE  Vehicle  Radar  Standards  Subcommittee  document  VRS-  96-  6  entitled  Vehicle  Radar  and  Radio 
 Astronomy,  dated  February  28,  1996.  The  document  is  available  at  the  following  web  address:  http://  www.  its.  bldrdoc.  gov/~  allen/  IEEE_  VRS/  VRSDocs/  doclist.  html 


 25  This  footnote  prohibits  emissions  in  certain  bands.  See  Appendix  A,  Proposed  Rules,  for  a  complete  list. 
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 5.149  26  with  U.  S.  footnotes  US246  and  US342,  respectively  and  apply  these  footnotes  to  additional  bands.  The  international  and  domestic  footnotes  contain  the  same  provisions,  except  for  the  frequency 
 bands  to  which  they  apply.  Other  U.  S.  and  international  footnotes  would  be  added  or  deleted  as  indicated  in  Table  2  to  be  consistent  with  WRC-  2000  changes.  27 


 15.  Finally,  to  make  the  U.  S.  Table  consistent  with  WRC-  2000  changes,  we  propose  to  delete  the  nine  United  States  footnotes  that  were  adopted  in  the  Table  Clean-  up  Order.  28  These  footnotes  were 
 added  to  the  Table  to  maintain  the  status  quo  for  the  United  States  Table.  That  is,  because  the  WRC  removed  several  international  footnotes  that  we  had  adopted  into  our  domestic  table,  we  adopted  these 
 nine  US  footnotes  to  take  their  place.  Now  that  we  are  proposing  to  adopt  the  realignment  of  WRC-  2000,  these  footnotes  would  no  longer  apply.  We  seek  comment  on  the  proposed  changes. 


 26  This  footnote  urges  administrations  to  take  all  practicable  steps  to  protect  the  radio  astronomy  service  from 
 harmful  interference  when  making  assignments  in  certain  bands.  See  Appendix  A,  Proposed  Rules,  for  a  complete  list  of  the  RAS  bands  that  are  protected. 


 27  When  a  footnote  is  first  introduced  in  Table  2,  a  brief  description  is  given.  For  a  complete  explanation  of  each 
 revised  footnote,  see  Appendix  B:  Proposed  Rules.  All  other  footnotes  can  be  found  in  47  C.  F.  R.    2.  106  (Table  of  Frequency  Allocations). 


 28  These  nine  footnotes  are:  US369,  US370,  US371,  US372,  US373,  US374,  US375,  US376,  and  US377.  See 
 Amendment  of  Part  2  of  the  Commissions  Rules  to  Make  Non-  Substantive  Revisions  to  the  Table  of  Frequency  Allocations,  Order  (  Table  Clean-  up  Order)  in  Docket  No.  02-  1872,  FCC  17  Rcd  15263  (August  5,  2002). 
8
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 Table  2:  Existing  U.  S.  Allocations  vs.  Proposals  for  Realigned  Allocations  Existing  U.  S.  Allocation  Proposed  U.  S.  Allocations  Summary  of  Major  Changes 
 71-  76  GHz  Realignment  proposed  in  the  70/  80/  90  GHz  NPRM 
 76-  77  GHz  RADIOLOCATION 
 Amateur  77-  77.5  GHz 


 RADIOLOCATION  Amateur 
 Amateur-  satellite 


 76-  77.  5  GHz  RADIO  ASTRONOMY 
 RADIOLOCATION  Amateur 
 Amateur-  satellite  Space  research  (downlinks) 


 US342  (take  all  practicable  steps  to  protect  RAS  from  harmful  interference) 


 Additional  1.5  GHz  for  RAS. 
 Additional  1.5  GHz  for  SRS  (downlinks). 
 Additional  1  GHz  for  AMSAT. 


 77.  5-  78  RADIOLOCATION 
 AMATEUR  AMATEUR-  SATELLITE 
 77.  5-  78  GHz  AMATEUR 
 AMATEUR-  SATELLITE  Radio  astronomy 
 Space  research  (downlinks) 
 US342 


 Additional  500  MHz  for  RAS  &  SRS  downlinks). 
 Reduction  of  500  MHz  for  radiolocation. 


 78-  79  GHz  RADIO  ASTRONOMY 
 RADIOLOCATION  Amateur 
 Amateur-  satellite  Space  research  (downlinks) 


 5.560  US342 


 Additional  1  GHz  for  RAS  &  SRS  (downlinks). 
 Reduction  of  1  GHz  for  Govt  radiolocation. 
 78-  81  RADIOLOCATION 
 Amateur  Amateur-  satellite 


 5.560  (radars  located  on  space  stations  may  be  operated  on  a  primary  basis  in  the 
 EESS  &  SRS) 


 79-  81  GHz  RADIO  ASTRONOMY 
 RADIOLOCATION  Amateur 
 Amateur-  satellite  Space  research  (downlinks) 


 US342 


 Additional  2  GHz  for  RAS  &  SRS  (downlinks). 
 Reduction  of  2  GHz  for  Govt  radiolocation. 


 81-  86  GHz  Realignment  proposed  in  the  70/  80/  90  GHz  NPRM 
 86-  92  GHz  No  change. 
 92-  95  GHz  Realignment  proposed  in  the  70/  80/  90  GHz  NPRM 
 95-  100  GHz  MOBILE  US376  (stations  in  the  land  mobile 
 service  may  be  operated  subject  to  not  causing  harmful  interference  to  the  space 
 radiocommunication  services)  MOBILE-  SATELLITE 
 RADIONAVIGATION  RADIONAVIGATION-  SATELLITE 
 Radiolocation 
 5.149  (take  all  practicable  steps  to  protect  RAS  from  harmful  interference) 


 5.554  (satellite  links  connecting  land  stations  at  specified  fixed  points  are 
 authorized  when  used  in  conjunction  with  MSS  or  RNSS) 


 95-  100  GHz  FIXED 
 MOBILE  RADIO  ASTRONOMY 
 RADIOLOCATION  RADIONAVIGATION 
 RADIONAVIGATION-  SATELLITE 


 5.554  US342 


 Additional  5  GHz  for  fixed  &  RAS. 
 Upgrade  5  GHz  for  radiolocation  to  primary  status. 


 Reduction  of  5  GHz  for  MSS. 
9
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 Continuation  of  Table  2:  Existing  U.  S.  Allocations  vs.  Proposals  for  Realigned  Allocations  Existing  U.  S.  Allocation  Proposed  U.  S.  Allocations  Summary  of  Major  Changes 
 100-  102  GHz  EARTH  EXPLORATION-  SATELLITE  (passive) 
 SPACE  RESEARCH  (passive) 


 5.341  US246 


 100-  102  GHz  EARTH  EXPLORATION-  SATELLITE  (passive) 
 RADIO  ASTRONOMY  US74  SPACE  RESEARCH  (passive) 
 5.340  (all  emissions  prohibited  in  band) 
 5.341  (passive  research  is  being  conducted  by  some  countries  in  a  program  for  the  search  for 
 intentional  emissions  of  extraterrestrial  origin) 
 US246 


 Additional  2  GHz  for  RAS  (passive). 


 102-  105  GHz  FIXED 
 FIXED-  SATELLITE  (downlinks) 
 5.341 
 US211  (applicants  for  airborne  or  space  station  assignments  are  urged  to  take  all  practicable  steps 
 to  protect  RAS  observations  in  the  adjacent  bands  from  harmful  interference) 


 102-  105  GHz  FIXED 
 MOBILE  RADIO  ASTRONOMY 


 5.341  US342 


 Additional  3  GHz  for  mobile  &  RAS. 
 Reduction  of  3  GHz  for  FSS  (downlinks). 


 105-  109.5  FIXED 
 MOBILE  RADIO  ASTRONOMY 
 SPACE  RESEARCH  (passive)  5.562B  (limited  to  space-  based  RAS  only) 


 5.341  US342 


 Additional  4.5  GHz  for  fixed  &  mobile. 
 Reduction  of  4.  5  GHz  for  EESS  (passive). 


 109.5-  111.8  GHz  EARTH  EXPLORATION-  SATELLITE  (passive) 
 RADIO  ASTRONOMY  US74  SPACE  RESEARCH  (passive) 


 5.341  US246 


 No  change. 


 111.8-  114.25  GHz  FIXED 
 MOBILE  RADIO  ASTRONOMY 
 SPACE  RESEARCH  (passive)  5.562B 
 5.341  US342 


 Additional  2.45  GHz  for  fixed  &  mobile. 
 Reduction  of  2.  45  GHz  for  EESS  (passive). 


 105-  116  EARTH  EXPLORATION-  SATELLITE  (passive) 
 RADIO  ASTRONOMY  US74  SPACE  RESEARCH  (passive) 


 5.341  US246 
 114.25-  116  EARTH  EXPLORATION-  SATELLITE  (passive) 
 RADIO  ASTRONOMY  US74  SPACE  RESEARCH  (passive) 


 5.341  US246 


 No  change. 


 116-  119.98  GHz  EARTH  EXPLORATION-  SATELLITE  (passive) 
 FIXED  INTER-  SATELLITE 
 MOBILE  US373  (stations  in  the  aeronautical  mobile  service  may  be  operated  subject  to  not 
 causing  harmful  interference  to  ISS)  SPACE  RESEARCH  (passive) 


 5.341  US211 
 US263  (SRS  &  EESS  shall  not  receive  protection  from  the  fixed  and  mobile  services  operating  in 
 accordance  with  the  Table  of  Frequency  Allocations) 


 See  next  page  for  119.98-  120.02  GHz. 


 116-  122.25  GHz  EARTH  EXPLORATION-  SATELLITE  (passive) 
 INTER-  SATELLITE  5.562C  (use  is  limited  to  satellites  in  the  geostationary-  satellite  orbit  and 
 power  flux  density  limit  specified)  SPACE  RESEARCH  (passive) 


 5.138  (designated  for  industrial,  scientific,  and  medical  (ISM)  applications) 
 5.341  US211 


 Reduction  of  6.  25  GHz  for  fixed  &  mobile. 
 Reduction  of  40  MHz  for  amateur. 
10
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 Continuation  of  Table  2:  Existing  U.  S.  Allocations  vs.  Proposals  for  Realigned  Allocations  Existing  U.  S.  Allocation  Proposed  U.  S.  Allocations  Summary  of  Major  Changes 
 119.98-  120.02  GHz  EARTH  EXPLORATION-  SATELLITE  (passive) 
 FIXED  INTER-  SATELLITE 
 MOBILE  US373  SPACE  RESEARCH  (passive) 
 Amateur 
 5.341  US211  US263 


 See  previous  page  for  116-  122.25  GHz. 


 122.25-  123  GHz  FIXED 
 INTER-  SATELLITE  MOBILE  5.558  (aeronautical  mobile  service  may 
 not  cause  harmful  interference  to  ISS)  Amateur 


 5.138 


 Additional  750  MHz  for  amateur. 
 Reduction  of  750  MHz  for  EESS  (passive)  &  SRS  (passive). 


 120.02-  126  GHz  EARTH  EXPLORATION-  SATELLITE  (passive) 
 FIXED  INTER-  SATELLITE 
 MOBILE  US373  SPACE  RESEARCH  (passive) 


 5.138  US211  US263 
 Additional  3  GHz  for  FSS  (downlinks),  MSS  (downlinks),  radionavigation,  RNSS, 
 &  RAS. 


 Reduction  of  3  GHz  for  EESS  (passive),  fixed,  ISS,  mobile,  &  SRS  (passive). 


 123-  130  FIXED-  SATELLITE  (downlinks) 
 MOBILE-  SATELLITE  (downlinks)  RADIONAVIGATION 
 RADIONAVIGATION-  SATELLITE  Radio  astronomy 


 5.554  US211  US342 
 Additional  4  GHz  for  FSS  (downlinks),  MSS  (downlinks),  radionavigation,  RNSS, 
 &  RAS. 


 Reduction  of  4  GHz  for  fixed,  ISS,  mobile,  &  radiolocation. 


 126-  134  GHz  FIXED 
 INTER-  SATELLITE  MOBILE  US373 
 RADIOLOCATION  US374  (airborne  radars  in  the  radiolocation  service  may  be  operated  subject 
 to  not  causing  harmful  interference  to  ISS)  130-  134  GHz 
 EARTH  EXPLORATION-  SATELLITE  (active)  5.562E  (EESS  (active)  is  limited  to  this  band) 


 FIXED  INTER-  SATELLITE 
 MOBILE  5.558  RADIO  ASTRONOMY 


 5.562A  (EESS  &  RAS  should  mutually  plan  their  operations) 
 US342 


 Additional  500  MHz  for  EESS  (active) 
 Additional  4  GHz  for  RAS. 
 Reduction  of  4  GHz  for  radiolocation. 


 See  next  page  for  134-  142  GHz.  134-  136  GHz  AMATEUR 
 AMATEUR-  SATELLITE  Radio  astronomy 
 Additional  2  GHz  for  amateur,  AMSAT,  &  RAS. 


 Reduction  of  2  GHz  for  mobile,  MSS,  radionavigation,  RNSS,  &  radiolocation. 
11
 Federal  Communications  Commission  FCC  03-  90 
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 Continuation  of  Table  2:  Existing  U.  S.  Allocations  vs.  Proposals  for  Realigned  Allocations  Existing  U.  S.  Allocation  Proposed  U.  S.  Allocations  Summary  of  Major  Changes 
 See  previous  page  for  134-  136  GHz. 
 136-  141  GHz  RADIO  ASTRONOMY 


 RADIOLOCATION  Amateur 
 Amateur-  satellite 


 US342 


 Additional  5  GHz  for  RAS,  amateur,  &  AMSAT. 
 Upgrade  5  GHz  for  radiolocation  to  primary  status. 
 Reduction  of  5  GHz  for  mobile,  MSS,  radionavigation,  &  RNSS. 


 134-  142  GHz  MOBILE  US376 
 MOBILE-  SATELLITE  RADIONAVIGATION 
 RADIONAVIGATION-  SATELLITE  Radiolocation 


 5.149 
 917  (all  emissions  from  airborne  stations  and  from  space  stations  in  the  downlink  direction,  are 
 prohibited) 
 US371  (satellite  links  connecting  land  stations  at  specified  fixed  points  are  also  authorized  when 
 used  in  conjunction  with  MSS  or  RNSS) 
 US372  (allocated  to  RAS  on  a  primary  basis) 


 142-  144  GHz  AMATEUR 
 AMATEUR-  SATELLITE 


 141-  148.5  GHz  FIXED 
 MOBILE  RADIO  ASTRONOMY 
 RADIOLOCATION 


 US342 


 Additional  7.5  GHz  for  fixed  &  RAS. 
 Additional  2  GHz  for  radiolocation  on  a  primary  basis. 


 Additional  6.5  GHz  for  mobile. 
 Upgrade  1  GHz  for  radiolocation  to  primary  status. 


 Reduction  of  6.5  GHz  for  amateur  &  AMSAT. 
 Reduction  of  1  GHz  for  MSS,  radionavigation,  &  RNSS. 


 144-  149  GHz  RADIOLOCATION 
 Amateur  Amateur-  satellite 


 5.149  US372 
 149-  150  GHz  FIXED 


 FIXED-  SATELLITE  (downlinks)  MOBILE 


 150-  151  GHz  EARTH  EXPLORATION-  SATELLITE  (passive) 
 FIXED  FIXED-  SATELLITE  (downlinks) 
 MOBILE  SPACE  RESEARCH  (passive) 


 US263  US342 
 US369  (allocated  to  RAS  on  a  secondary  basis  for  spectral  line  observations) 


 148.5-  151.5  GHz  EARTH  EXPLORATION-  SATELLITE  (passive) 
 RADIO  ASTRONOMY  US74  SPACE  RESEARCH  (passive) 


 US246 


 Additional  3  GHz  for  RAS. 
 Additional  2  GHz  for  EESS  (passive)  &  SRS  (passive). 


 Reduction  of  500  MHz  of  radiolocation,  amateur,  &  AMSAT. 
 Reduction  of  2.5  GHz  for  fixed  &  FSS  (downlinks). 
 Reduction  of  2  GHz  for  mobile. 


 151.5-  155.5  GHz  FIXED 
 MOBILE  RADIO  ASTRONOMY 
 RADIOLOCATION 


 US342 


 Additional  4  GHz  for  mobile,  RAS,  &  radiolocation. 
 Reduction  of  4  GHz  for  FSS  (downlinks). 


 151-  164  GHz  FIXED 
 FIXED-  SATELLITE  (downlinks) 


 US211  See  next  page  for  155.5-  158.5  GHz. 
12
 Federal  Communications  Commission  FCC  03-  90 
 13 
 Continuation  of  Table  2:  Existing  U.  S.  Allocations  vs.  Proposals  for  Realigned  Allocations  Existing  U.  S.  Allocation  Proposed  U.  S.  Allocations  Summary  of  Major  Changes 
 155.5-  158.5  GHz  EARTH  EXPLORATION-  SATELLITE  (passive) 
 5.562F  (allocation  to  EESS  (passive)  &  SRS  (passive)  shall  terminate  on  1  January  2018) 
 FIXED  MOBILE 
 RADIO  ASTRONOMY  SPACE  RESEARCH  (passive)  5.562B 


 5.562G  (date  of  entry  to  fixed  &  mobile  shall  be  1  January  2018) 
 US342 


 Additional  3  GHz  for  EESS  (passive),  mobile,  RAS,  &  SRS  (passive). 
 Reduction  of  3  GHz  for  FSS  (downlinks). 
 See  previous  page  for  151-  164  GHz. 


 158.5-  164  GHz  FIXED 
 FIXED-  SATELLITE  (downlinks)  MOBILE 
 MOBILE-  SATELLITE  (downlinks) 
 US211 


 Additional  5.5  GHz  for  mobile  &  MSS  (downlinks). 


 164-  167  GHz  EARTH  EXPLORATION-  SATELLITE  (passive) 
 RADIO  ASTRONOMY  US74  SPACE  RESEARCH  (passive) 


 US246 


 No  change.  164-  168  GHz  EARTH  EXPLORATION-  SATELLITE  (passive) 
 RADIO  ASTRONOMY  SPACE  RESEARCH  (passive) 


 US246 
 167-  168  GHz  FIXED 
 FIXED-  SATELLITE  (downlinks)  INTER-  SATELLITE 
 MOBILE  5.558  US211 


 Additional  1  GHz  for  fixed,  FSS  (downlinks),  ISS,  &  mobile. 
 Reduction  of  1  GHz  for  EESS  (passive),  RAS,  &  SRS  (passive). 
 168-  170  GHz  FIXED 
 MOBILE 
 168-  170  GHz  FIXED 
 FIXED-  SATELLITE  (downlinks)  INTER-  SATELLITE 
 MOBILE  5.558 


 Additional  2  GHz  for  FSS  (downlinks)  &  ISS. 


 170-  174.5  GHz  FIXED 
 INTER-  SATELLITE  MOBILE  5.558 


 US342  US369 


 170-  174.5  GHz  FIXED 
 FIXED-  SATELLITE  (downlinks)  INTER-  SATELLITE 
 MOBILE  5.558 


 Additional  4.5  GHz  for  FSS  (downlinks). 


 174.5-  174.8  GHz  EARTH  EXPLORATION-  SATELLITE  (passive) 
 FIXED  INTER-  SATELLITE 
 MOBILE  5.558  SPACE  RESEARCH  (passive) 


 US263  US342  US369 


 174.5-  174.8  GHz  FIXED 
 INTER-  SATELLITE  MOBILE  5.558 
 Reduction  of  300  MHz  for  EESS  (passive)  &  SRS  (passive). 


 174.8-  176.5  GHz  EARTH  EXPLORATION-  SATELLITE  (passive) 
 FIXED  INTER-  SATELLITE 
 MOBILE  US373  SPACE  RESEARCH  (passive) 


 US263  US342  US369  See  next  page  for  176.5-  182  GHz. 


 174.8-  182  GHz  EARTH  EXPLORATION-  SATELLITE  (passive) 
 INTER-  SATELLITE  5.562H  (limited  to  satellites  in  geostationary  satellite  orbit  with  power  flux 
 density  specified)  SPACE  RESEARCH  (passive) 


 Additional  5.5  GHz  for  EESS  (passive)  &  SRS  (passive). 
 Reduction  of  7.2  GHz  for  fixed  and  mobile. 
13
 Federal  Communications  Commission  FCC  03-  90 
 14 
 Continuation  of  Table  2:  Existing  U.  S.  Allocations  vs.  Proposals  for  Realigned  Allocations  Existing  U.  S.  Allocation  Proposed  U.  S.  Allocations  Summary  of  Major  Changes 
 176.5-  182  GHz  FIXED 
 INTER-  SATELLITE  MOBILE  US373 


 US211  US342  US369 


 See  previous  page  for  174.8-  182  GHz. 


 182-  185  GHz  No  change. 
 185-  190  GHz  FIXED 
 INTER-  SATELLITE  MOBILE  US373 


 US211  US342  US369 


 185-  190  GHz  EARTH  EXPLORATION-  SATELLITE  (passive) 
 INTER-  SATELLITE  5.562H  SPACE  RESEARCH  (passive) 
 Additional  5  GHz  for  EESS  (passive)  &  SRS  (passive). 


 Reduction  of  5  GHz  for  fixed  &  mobile. 
 190-  191.8  GHz  MOBILE  US376 
 MOBILE-  SATELLITE  RADIONAVIGATION 
 RADIONAVIGATION-  SATELLITE 
 US371 


 190-  191.8  GHz  EARTH  EXPLORATION-  SATELLITE  (passive) 
 SPACE  RESEARCH  (passive) 


 US246 


 Additional  1.8  GHz  for  EESS  (passive)  &  SRS  (passive). 
 Reduction  of  1.8  GHz  for  mobile,  MSS,  radionavigation,  &  RNSS. 


 191.8-  200  GHz  MOBILE  US376 
 MOBILE-  SATELLITE  RADIONAVIGATION 
 RADIONAVIGATION-  SATELLITE 


 5.341  5.554 


 191.8-  200  GHz  FIXED 
 INTER-  SATELLITE  MOBILE  5.558 
 MOBILE-  SATELLITE  RADIONAVIGATION 
 RADIONAVIGATION-  SATELLITE 
 5.341  5.554  US211 


 Additional  8.2  GHz  for  fixed  &  ISS. 


 200-  202  GHz  EARTH  EXPLORATION-  SATELLITE  (passive) 
 FIXED  MOBILE 
 SPACE  RESEARCH  (passive) 


 5.341  US263 


 200-  209  GHz  EARTH  EXPLORATION-  SATELLITE  (passive) 
 RADIO  ASTRONOMY  US74  SPACE  RESEARCH  (passive) 


 5.341 
 5.563A  (ground-  based  passive  atmospheric  sensing  is  carried  out  to  monitor  atmospheric 
 constituents) 
 US246 


 Additional  9  GHz  for  RAS. 
 Additional  7  GHz  for  EESS  (passive)  &  SRS  (passive). 


 Reduction  of  9  GHz  for  fixed  &  mobile. 
 Reduction  of  7  GHz  for  FSS  (downlinks). 


 202-  217  GHz  FIXED 
 FIXED-  SATELLITE  (downlinks)  MOBILE 


 5.341 


 209-  217  GHz  FIXED 
 FIXED-  SATELLITE  (uplinks)  MOBILE 
 RADIO  ASTRONOMY 
 5.341  US342 


 Additional  8  GHz  for  RAS. 
 Change  FSS  to  uplink  direction. 
14
 Federal  Communications  Commission  FCC  03-  90 
 15 
 Continuation  of  Table  2:  Existing  U.  S.  Allocations  vs.  Proposals  for  Realigned  Allocations  Existing  U.  S.  Allocation  Proposed  U.  S.  Allocations  Summary  of  Major  Changes 
 217-  226  GHz  FIXED 
 FIXED-  SATELLITE  (uplinks)  MOBILE 
 RADIO  ASTRONOMY  SPACE  RESEARCH  (passive)  5.562B 


 5.341  US342 


 Additional  9  GHz  for  fixed,  FSS  (uplinks),  &  mobile. 
 Removal  of  9  GHz  for  EESS  (passive). 
 217-  231  GHz  EARTH  EXPLORATION-  SATELLITE  (passive) 
 RADIO  ASTRONOMY  US74  SPACE  RESEARCH  (passive) 


 5.341  US246 
 226-  231.5  GHz  EARTH  EXPLORATION-  SATELLITE  (passive) 
 RADIO  ASTRONOMY  SPACE  RESEARCH  (passive) 


 US246 


 Additional  500  MHz  for  EESS  (passive),  RAS,  &  SRS  (passive). 
 Removal  of  500  MHz  for  fixed,  FSS  (downlinks),  mobile,  &  radiolocation. 


 231.5-  232  GHz  FIXED 
 MOBILE  Radiolocation 
 Removal  of  500  MHz  for  FSS  (downlinks).  231-  235  GHz  FIXED  FIXED-  SATELLITE  (downlinks) 
 MOBILE  Radiolocation 


 US211 
 232-  235  GHz  FIXED 
 FIXED-  SATELLITE  (downlinks)  MOBILE 
 Radiolocation 


 No  change. 


 235-  238  GHz  EARTH  EXPLORATION-  SATELLITE  (passive) 
 FIXED  FIXED-  SATELLITE  (downlinks) 
 MOBILE  SPACE  RESEARCH  (passive) 


 US263 


 235-  238  GHz  EARTH  EXPLORATION-  SATELLITE  (passive) 
 FIXED-  SATELLITE  (downlinks)  SPACE  RESEARCH  (passive) 


 5.563A 
 5.563B  (allocated  to  EESS  (active)  &  SRS  (active)  for  spaceborne  cloud  radars  only) 


 Removal  of  3  GHz  for  fixed  &  mobile. 


 238-  240  GHz  FIXED 
 FIXED-  SATELLITE  (downlinks)  MOBILE 
 RADIOLOCATION  RADIONAVIGATION 
 RADIONAVIGATION-  SATELLITE 


 Additional  2  GHz  for  radionavigation  &  RNSS. 
 Upgrade  2  GHz  for  radiolocation  to  primary  status. 
 238-  241  GHz  FIXED 
 FIXED-  SATELLITE  (downlinks)  MOBILE 
 Radiolocation 


 240-  241  GHz  FIXED 
 MOBILE  RADIOLOCATION 
 Upgrade  1  GHz  for  radiolocation  to  primary  status. 


 Removal  of  1  GHz  for  FSS  (downlinks). 
 241-  248  GHz  RADIOLOCATION 


 Amateur  Amateur-  satellite 
 241-  248  GHz  RADIO  ASTRONOMY 
 RADIOLOCATION  Amateur 
 Amateur-  satellite 
 5.138  US342 


 Additional  7  GHz  for  RAS. 


 248-  250  GHz  AMATEUR 
 AMATEUR-  SATELLITE 
 248-  250  GHz  AMATEUR 
 AMATEUR-  SATELLITE  Radio  astronomy 


 US342 


 Additional  2  GHz  for  RAS. 
15
 Federal  Communications  Commission  FCC  03-  90 
 16 
 Continuation  of  Table  2:  Existing  U.  S.  Allocations  vs.  Proposals  for  Realigned  Allocations  Existing  U.  S.  Allocation  Proposed  U.  S.  Allocations  Summary  of  Major  Changes 
 250-  252  GHz  EARTH  EXPLORATION-  SATELLITE  (passive) 
 SPACE  RESEARCH  (passive) 


 US342  US372 


 250-  252  GHz  EARTH-  EXPLORATION-  SATELLITE  (passive) 
 RADIO  ASTRONOMY  US74  SPACE  RESEARCH  (passive) 


 5.563A  US246 


 Additional  2  GHz  for  RAS  (passive). 


 252-  265  GHz  MOBILE  US376 
 MOBILE-  SATELLITE  RADIONAVIGATION 
 RADIONAVIGATION-  SATELLITE 


 5.554  US211  US342  US369  US372 


 252-  265  GHz  FIXED 
 MOBILE  MOBILE-  SATELLITE  (uplinks) 
 RADIO  ASTRONOMY  RADIONAVIGATION 
 RADIONAVIGATION-  SATELLITE 
 5.554  US211  US342 


 Additional  13  GHz  for  fixed  &  RAS. 
 Specify  that  the  13  GHz  for  MSS  is  in  the  uplink  direction. 


 265-  275  GHz  FIXED 
 FIXED-  SATELLITE  (downlinks)  MOBILE 
 RADIO  ASTRONOMY 
 US342 


 265-  275  GHz  FIXED 
 FIXED-  SATELLITE  (uplinks)  MOBILE 
 RADIO  ASTRONOMY 
 5.563A  US342 


 Change  fixed-  satellite  to  uplink  direction. 


 275-  300  GHz  FIXED 
 MOBILE 
 US375  (take  all  practicable  steps  to  protect  passive  services  from  harmful  interference 
 and  band  may  be  used  by  administrations  for  experimentation  with,  and  development  of, 
 various  active  and  passive  services)  300-  1000  (Not  allocated)  US375 


 275-  1000  GHz  (Not  Allocated) 
 5.565  (take  all  practicable  steps  to  protect  spectral  line  measurements  for  passive  services  from 
 harmful  interference  until  the  date  when  the  allocation  table  is  established  and  may  be  used 
 by  administrations  for  experimentation  with,  and  development  of,  various  active  and  passive 
 services) 


 Removal  of  25  GHz  for  fixed  &  mobile. 


 B.  Maximum  Power  Density  in  the  Band  55.78-  56.26  GHz 
 16.  In  December  2000,  the  Commission  adopted  a  Report  and  Order  to  realign  allocations  in  the  50.2-  50.  4  GHz  and  51.4-  71  GHz  frequency  bands.  29  One  issue  under  consideration  was  whether  to 


 protect  EESS  services  in  the  55.78-  56.26  GHz  band  by  adopting  a  maximum  power  spectral  density  limit  that  can  be  delivered  to  fixed  service  transmitter  antennas.  30  However,  because  that  band  was  allocated  to 
 the  fixed  service  on  a  primary  basis  and  available  for  any  fixed  point-  to-  point  or  point-  to-  multipoint  use,  the  Commission  deferred  action  on  this  issue,  stating  that  protection  of  EESS  in  the  55.78-  56.26  GHz 
 band  was  unnecessary.  31  At  WRC-  2000,  the  United  States  stated  that  based  upon  studies  contained  within  Recommendation  ITU-  R  SA.  1279,  32  sharing  is  feasible  between  the  EESS  passive  and  the  high 
 density  applications  in  the  fixed  service  (  HDFS),  provided  that  the  parameters  assumed  in  the  Recommendation  are  not  exceeded.  33  Therefore,  the  United  States  had  proposed  to  limit  a  maximum 


 29  See  supra  note  4. 
 30  This  power  limit  is  a  transmitter  power  limit,  not  an  effective  isotropic  radiated  power  (e.  i.  r.  p.)  limit.  Thus  users 
 have  the  flexibility  to  use  large  antenna  gain  in  order  to  meet  distance  requirements.  31 
 Id.  at    29. 
 32  See  ITU-  R  Recommendation  SA.  1279,  Spectrum  sharing  between  spaceborne  passive  sensors  and  inter-  satellite 
 links  in  the  range  50.2-  59.  3  GHz. 
 33  See  United  States  of  America  Proposals  For  The  Work  Of  The  [WRC-  2000]  Conference,  Document  12-  E,  dated 
 12  January  2000,  Proposals  for  agenda  item  1.4.  The  proposed  footnote  in  Document  12-  E  was  modified  at  WRC-2000  to  read  as  quoted  above. 
16
 Federal  Communications  Commission  FCC  03-  90 
 17 
 power  spectral  density  delivered  to  fixed  service  transmitter  antennas  at  55.  78-  56.  26  GHz  to  -28.5  dB  (W/  MHz).  Instead,  WRC-  2000  adopted  a  higher  power  density  limit  of  -26  dB  (W/  MHz).  NTIA  finds 
 the  WRC-  2000  power  density  limit  unacceptable  for  domestic  use,  and  requests  that  the  U.  S.  proposal  of  -28.5  dB  (W/  MHz)  be  adopted  domestically.  As  indicated  in  Recommendation  ITU-  R  SA.  1279,  this 
 band  has  a  unique  natural  resource  for  remote  temperature  profile  sensing  in  the  atmosphere.  NTIA  requests  the  tighter  limit  because  passive  measurements  are  extremely  vulnerable  to  interference  due  to 
 the  variability  of  the  atmosphere,  which  can  have  a  dramatic  impact  on  climate  studies  and  the  quality  of  weather  predictions.  We  believe  that  adopting  the  power  density  limit  recommended  by  NTIA  will  have 
 minimal  impact  on  current  and  future  use  of  the  band.  Because  there  has  not  been  much  fixed  service  equipment  development  in  this  band    currently  there  are  only  a  few  experimental  licenses    the  more 
 stringent  standard  may  only  affect  a  minimal  amount  of  existing  equipment,  and  entities  planning  on  developing  equipment  for  this  band  will  be  able  to  design  for  the  new  standard  from  the  start. 
 Accordingly,  we  propose  to  adopt  a  new  United  States  footnote,  which  would  read  as  follows: 
 USxxx  In  the  band  55.78-  56.26  GHz,  in  order  to  protect  stations  in  the  Earth  exploration-  satellite  service  (passive),  the  maximum  power  density  delivered  to  fixed 
 service  transmitter  antennas  is  limited  to  -28.5  dB(  W/  MHz). 
 We  seek  comment  on  the  proposed  power  spectral  density  limit.  Commenters  should  address  the  power  spectral  density  limit  in  terms  of  its  ability  to  protect  EESS  and  its  impact  on  equipment  development,  as 
 well  as,  alternative  power  limits  for  the  55  GHz  systems  that  would  provide  the  same  overall  protection  to  EESS  services.  Commenters  should  address  the  impact  of  this  limit  on  other  services  in  the  band. 


 PROCEDURAL  MATTERS 
 A.  Initial  Regulatory  Flexibility  Certification 
 17.  The  Commission  has  prepared  an  Initial  Regulatory  Flexibility  Certification  concerning  this  present  action.  The  Certification  is  set  forth  in  Appendix  B.  This  action  realigns  unused  allocations 


 in  extremely  high  frequency  bands  above  76  GHz.  This  action  proposes  to  conform  United  States  frequency  allocations  above  76  GHz  to  international  allocations  and  adopt  domestic  limits  to  protect  the 
 EESS  from  unacceptable  interference.  Neither  of  these  actions  will  affect  existing  operations. 
 B.  Ex  Parte  Rules    Permit-  But-  Disclose  Proceedings 
 18.  This  is  a  permit-  but-  disclose  notice  and  comment  rule  making  proceeding.  Ex  parte  presentations  are  permitted,  except  during  Sunshine  Agenda  period,  provided  they  are  disclosed  as 


 provided  in  the  Commissions  rules.  See  generally  47  C.  F.  R.    1.1202,  1.1203,  1.  2306(  a). 
 C.  Comments 
 19.  Pursuant  to  Sections  1.415  and  1.419  of  the  Commission's  rules,  47  C.  F.  R.    1.415,  1.419,  interested  parties  may  file  comments  on  or  before  [60  days  from  date  of  publication  in  the  Federal 


 Register],  and  reply  comments  on  or  before  [90  days  from  date  of  publication  in  the  Federal  Register].  Comments  may  be  filed  using  the  Commission's  Electronic  Comment  Filing  System  (ECFS)  or  by  filing 
 paper  copies.  See  Electronic  Filing  of  Documents  in  Rulemaking  Proceedings,  63  Fed.  Reg.  24121  (1998). 


 20.  Comments  filed  through  the  ECFS  can  be  sent  as  an  electronic  file  via  the  Internet  to  http://  www.  fcc.  gov/  e-  file/  ecfs.  html.  Generally,  only  one  copy  of  an  electronic  submission  must  be  filed. 
 If  multiple  docket  or  rulemaking  numbers  appear  in  the  caption  of  this  proceeding,  however,  commenters  must  transmit  one  electronic  copy  of  the  comments  to  each  docket  or  rulemaking  number  referenced  in 
 the  caption.  In  completing  the  transmittal  screen,  commenters  should  include  their  full  name,  U.  S.  Postal  Service  mailing  address,  and  the  applicable  docket  or  rulemaking  number.  Parties  may  also  submit  an 
17
 Federal  Communications  Commission  FCC  03-  90 
 18 
 electronic  comment  by  Internet  e-  mail.  To  get  filing  instructions  for  e-  mail  comments,  commenters  should  send  an  e-  mail  to  ecfs@  fcc.  gov,  and  should  include  the  following  words  in  the  body  of  the 
 message,  "get  form  <your  e-  mail  address."  A  sample  form  and  directions  will  be  sent  in  reply.  Parties  who  choose  to  file  by  paper  must  file  an  original  and  four  copies  of  each  filing.  If  more  than  one  docket 
 or  rulemaking  number  appear  in  the  caption  of  this  proceeding,  commenters  must  submit  two  additional  copies  for  each  additional  docket  or  rulemaking  number. 


 21.  Filings  can  be  sent  by  hand  or  messenger  delivery,  by  commercial  overnight  courier,  or  by  first-  class  or  overnight  U.  S.  Postal  Service  mail  (although  we  continue  to  experience  delays  in 
 receiving  U.  S.  Postal  Service  mail).  The  Commission's  contractor,  Vistronix,  Inc.,  will  receive  hand-delivered  or  messenger-  delivered  paper  filings  for  the  Commission's  Secretary  at  236  Massachusetts 
 Avenue,  N.  E.,  Suite  110,  Washington,  D.  C.  20002.  The  filing  hours  at  this  location  are  8:  00  a.  m.  to  7:  00  p.  m.  All  hand  deliveries  must  be  held  together  with  rubber  bands  or  fasteners.  Any  envelopes  must  be 
 disposed  of  before  entering  the  building.  Commercial  overnight  mail  (other  than  U.  S.  Postal  Service  Express  Mail  and  Priority  Mail)  must  be  sent  to  9300  East  Hampton  Drive,  Capitol  Heights,  MD  20743. 
 U.  S.  Postal  Service  first-  class  mail,  Express  Mail,  and  Priority  Mail  should  be  addressed  to  445  12th  Street,  SW,  Washington,  D.  C.  20554.  All  filings  must  be  addressed  to  the  Commission's  Secretary, 
 Office  of  the  Secretary,  Federal  Communications  Commission. 
 D.  Contact  Person 
 22.  For  additional  information  concerning  the  Notice,  contact  Shameeka  Parrott  at  202-  418-  2062,  or  via  the  Internet  at  sparrott@  fcc.  gov. 


 E.  Ordering  Clauses 
 23.  Accordingly,  IT  IS  ORDERED  that  pursuant  to  Sections  1,  4,  301,  and  303,  of  the  Communications  Act  of  1934,  as  amended,  47  U.  S.  C.  Sections  151,  154,  301,  and  303,  the  Notice  of 


 Proposed  Rule  Making  IS  ADOPTED. 
 24.  IT  IS  FURTHER  ORDERED  that  the  Commissions  Consumer  and  Governmental  Affairs  Bureau,  Reference  Information  Center,  SHALL  SEND  a  copy  of  this  Notice,  including  the  Initial 


 Regulatory  Flexibility  Certification,  to  the  Chief  Counsel  for  Advocacy  of  the  Small  Business  Administration. 


 FEDERAL  COMMUNICATIONS  COMMISSION 
 Marlene  H.  Dortch  Secretary 
18
 Federal  Communications  Commission  FCC  03-  90 
 19 
 APPENDIX  A 
 PROPOSED  RULES 
 For  the  reasons  discussed  in  the  preamble,  the  Federal  Communications  Commission  proposes  to  amend  47  CFR  Part  2  as  follows: 


 PART  2    FREQUENCY  ALLOCATIONS  AND  RADIO  TREATY  MATTERS;  GENERAL  RULES  AND  REGULATIONS 
 1.  The  authority  citation  for  part  2  continues  to  read  as  follows: 
 Authority:  47  U.  S.  C.  154,  302a,  303,  and  336,  unless  otherwise  noted. 
 2.  Section  2.106,  the  Table  of  Frequency  Allocations,  is  proposed  to  be  amended  as  follows: 
 a.  Revise  pages  79  and  81  through  90. 
 b.  In  the  list  of  United  States  (US)  Footnotes,  revise  footnotes  US74,  US211,  US246,  US263,  and  US342;  delete  US369,  US370,  US371,  US372,  US373,  US374,  US375,  US376,  and  US377;  and  add 
 footnote  USxxx. 
 The  proposed  revisions  and  addition  read  as  follows: 
   2.106  Table  of  Frequency  Allocations. 
 *  *  *  *  * 
19
 Federal 
 Communications 


 Commission 


 FCC 
 03-  90 


 20 
 50. 
 2- 
 65 


 GHz 


 (EHF) 


 Page 
 79 


 International 
 Table 


 United 
 States 
 Table 


 Region 
 1 


 Region 
 2 


 Region 
 3 


 Federal 
 Government 


 Non- 
 Federal 


 Government 


 FCC 
 Rule 
 Part( 
 s) 


 50. 
 2- 
 50.4 


 EARTH 


 EXPLORATION- 


 SATELLITE 
 (passive) 


 SPACE 
 RESEARCH 


 (passive) 


 5.340 
 5. 
 555A 


 50. 
 2- 
 50.4 


 EARTH 


 EXPLORATION- 


 SATELLITE 
 (passive) 


 SPACE 
 RESEARCH 


 (passive) 


 US246 


 50. 
 4- 
 51.4 


 FIXED  FIXED- 


 SATELLITE 


 (Earth-  to- 
 space) 


 MOBILE  Mobile-  satellite 
 (Earth-  to- 
 space) 


 50. 
 4- 
 51.4 


 FIXED  FIXED- 


 SATELLITE  (Earth-  to-  space)  MOBILE  MOBILE-  SATELLITE  (Earth-  to-  space)  G117 


 50. 
 4- 
 51.4 


 FIXED  FIXED- 


 SATELLITE  (Earth-  to-  space)  MOBILE  MOBILE-  SATELLITE  (Earth-  to-  space) 


 51. 
 4- 
 52.6 


 FIXED  MOBILE  5.547  5. 


 556 


 51. 
 4- 
 52.6 


 FIXED  MOBILE 


 52. 
 6- 
 54.25  EARTH  EXPLORATION- 


 SATELLITE 
 (passive) 


 SPACE 
 RESEARCH 


 (passive) 


 5.340 
 5. 
 556 


 52. 
 6- 
 54.25  EARTH  EXPLORATION- 


 SATELLITE 
 (passive) 


 SPACE 
 RESEARCH 


 (passive) 


 US246 


 54.25-  55. 
 78 
 EARTH 
 EXPLORATION- 


 SATELLITE 
 (passive) 


 INTER- 
 SATELLITE 


 5.556A 


 SPACE 
 RESEARCH 


 (passive) 


 5.556B 


 54. 
 25- 
 55.  78 


 EARTH 


 EXPLORATION- 


 SATELLITE 
 (passive) 


 INTER- 
 SATELLITE 


 5.556A 


 SPACE 
 RESEARCH 


 (passive) 


 55.78-  56. 
 9 
 EARTH 
 EXPLORATION- 


 SATELLITE 
 (passive) 


 FIXED 
 5.557A 
 INTER- 
 SATELLITE 


 5.556A 


 MOBILE 
 5. 
 558 


 SPACE 
 RESEARCH 


 (passive) 


 5.547 
 5. 
 557 


 55. 
 78- 
 56.  9 


 EARTH 


 EXPLORATION- 


 SATELLITE 
 (passive) 


 FIXED 
 USxxx 
 INTER- 
 SATELLITE 


 5.556A 


 MOBILE 
 5.558 
 SPACE 
 RESEARCH 


 (passive) 


 US263 
 US353 


 56. 
 9- 
 57  EARTH 
 EXPLORATION- 


 SATELLITE 
 (passive) 


 FIXED  INTER- 
 SATELLITE 


 5.558A 


 MOBILE 
 5. 
 558 


 SPACE 
 RESEARCH 


 (passive) 


 56. 
 9- 
 57  EARTH 
 EXPLORATION-  SATELLITE  (passive)  FIXED  INTER-  SATELLITE  G128  MOBILE  5.558 


 56. 
 9- 
 57  EARTH 
 EXPLORATION-  SATELLITE  (passive)  FIXED  MOBILE  5.  558  SPACE  RESEARCH 
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 Table 


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 Rule 
 Part( 
 s) 


 65- 
 66  EARTH 


 EXPLORATION- 


 SATELLITE 


 FIXED  INTER- 
 SATELLITE  MOBILE  except  aeronautical 


 mobile 


 SPACE 
 RESEARCH  5.547 


 65- 
 66  EARTH 


 EXPLORATION-  SATELLITE  FIXED  MOBILE  except  aeronautical  mobile  SPACE  RESEARCH 


 65- 
 66  EARTH 


 EXPLORATION-  SATELLITE  FIXED  INTER-  SATELLITE  MOBILE  except  aeronautical  mobile  SPACE  RESEARCH 


 66- 
 71  INTER- 
 SATELLITE  MOBILE  5.  553  5.558  MOBILE-  SATELLITE  RADIONAVIGATION  RADIONAVIGATION- 


 SATELLITE 


 5.554 


 66- 
 71  MOBILE 


 5.553 


 5. 
 558 


 MOBILE- 
 SATELLITE  RADIONAVIGATION  RADIONAVIGATION-  SATELLITE  5.554 


 66- 
 71  INTER- 
 SATELLITE  MOBILE  5.  553  5.558  MOBILE-  SATELLITE  RADIONAVIGATION  RADIONAVIGATION-  SATELLITE  5.554 


 71- 
 74  FIXED  FIXED- 
 SATELLITE 


 (space-  to- 
 Earth) 


 MOBILE  MOBILE- 
 SATELLITE 


 (space-  to- 
 Earth) 


 71- 
 74  FIXED  FIXED- 
 SATELLITE 


 (Earth- 
 to- 
 space) 


 MOBILE  MOBILE- 
 SATELLITE 


 (Earth- 
 to-  space) 


 US270  74-  75.5  FIXED  FIXED- 
 SATELLITE 


 (Earth-  to- 
 space) 
 US297 


 MOBILE 


 74- 
 76  FIXED  FIXED- 
 SATELLITE 


 (space-  to- 
 Earth) 


 MOBILE  BROADCASTING  BROADCASTING- 
 SATELLITE 
 Space 
 research 


 (space-  to- 


 Earth) 


 5.559A 
 5. 
 561 


 75. 
 5- 
 76 


 75. 
 5- 
 76  AMATEUR  AMATEUR- 


 SATELLITE 


 Amateur 
 (97) 


 76- 
 77.5  RADIO 
 ASTRONOMY  RADIOLOCATION  Amateur  Amateur-  satellite  Space  research  (space- 


 to- 
 Earth) 


 5.149 


 76- 
 77.5  RADIO 
 ASTRONOMY  RADIOLOCATION  Space  research  (space-  to-  Earth)  US342 


 76- 
 77.  5  RADIO 
 ASTRONOMY  RADIOLOCATION  Amateur  Amateur-  satellite  Space  research  (space-  to-  Earth)  US342 


 RF 
 Devices 


 (15) 


 Amateur 
 (97) 
21
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 77. 
 5- 
 78  AMATEUR  AMATEUR- 


 SATELLITE  Radio  astronomy  Space  research  (space- 


 to- 
 Earth) 


 5.149 


 77. 
 5- 
 78 


 Radio 


 astronomy  Space  research  (space-  to-  Earth)  US342 


 77. 
 5- 
 78  AMATEUR  AMATEUR- 


 SATELLITE  Radio  astronomy  Space  research  (space-  to-  Earth)  US342 


 78- 
 79  RADIOLOCATION  Amateur  Amateur- 


 satellite 


 Radio 
 astronomy  Space  research  (space- 


 to- 
 Earth) 


 5.149 
 5.560 


 78- 
 79  RADIO 
 ASTRONOMY  RADIOLOCATION  Space  research  (space-  to-  Earth)  5.  560  US342 


 78- 
 79  RADIO 
 ASTRONOMY  RADIOLOCATION  Amateur  Amateur-  satellite  Space  research  (space-  to-  Earth)  5.560  US342 


 79- 
 81  RADIO 
 ASTRONOMY  RADIOLOCATION  Amateur  Amateur-  satellite  Space  research  (space- 


 to- 
 Earth) 


 5.149 


 79- 
 81  RADIO 
 ASTRONOMY  RADIOLOCATION  Space  research  (space-  to-  Earth)  US342 


 79- 
 81  RADIO 
 ASTRONOMY  RADIOLOCATION  Amateur  Amateur-  satellite  Space  research  (space-  to-  Earth)  US342 


 Amateur 
 (97) 


 81- 
 84  FIXED  FIXED- 
 SATELLITE 


 (Earth-  to- 
 space) 


 MOBILE  MOBILE- 
 SATELLITE 


 (Earth- 
 to-  space) 


 RADIO 
 ASTRONOMY  Space  research  (space- 


 to- 
 Earth) 


 5.149 
 5.561A 


 81- 
 84  FIXED  FIXED- 
 SATELLITE 


 (space-  to- 
 Earth) 


 MOBILE  MOBILE- 
 SATELLITE 


 (space-  to- 
 Earth) 


 84- 
 86  FIXED  FIXED 
 SATELLITE 


 (Earth- 
 to-  space) 


 5. 
 561B 


 MOBILE  RADIO  ASTRONOMY  5.149 


 84- 
 86  FIXED  MOBILE  US211 


 US377 


 84- 
 86  FIXED  MOBILE  BROADCASTING  BROADCASTING-  SATELLITE  US211 


 US377 


 86- 
 92  EARTH 


 EXPLORATION- 


 SATELLITE 
 (passive) 


 RADIO 
 ASTRONOMY  SPACE  RESEARCH  (passive)  5.340 


 86- 
 92  EARTH 


 EXPLORATION- 


 SATELLITE 
 (passive) 


 RADIO 
 ASTRONOMY 


 US74 


 SPACE 
 RESEARCH 


 (passive) 


 US246 


 Page 
 82 
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 98 
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 Table 


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 Rule 
 Part( 
 s) 


 92- 
 94  FIXED  MOBILE  RADIO 
 ASTRONOMY  RADIOLOCATION  5.149  94-  94.1  EARTH  EXPLORATION- 


 SATELLITE 
 (active) 


 RADIOLOCATION  SPACE  RESEARCH 
 (active) 
 Radio 
 astronomy  5.562  5.562A 


 92- 
 95  FIXED  FIXED- 
 SATELLITE 


 (Earth- 
 to- 
 space) 


 MOBILE  RADIOLOCATION 


 94. 
 1- 
 95 


 FIXED  MOBILE  RADIO 


 ASTRONOMY  RADIOLOCATION  5.149 


 US342 


 95- 
 100  FIXED  MOBILE  RADIO 
 ASTRONOMY  RADIOLOCATION  RADIONAVIGATION  RADIONAVIGATION-  SATELLITE  5.149  5.  554 


 95- 
 100  FIXED  MOBILE  RADIO 
 ASTRONOMY  RADIOLOCATION  RADIONAVIGATION  RADIONAVIGATION-  SATELLITE  5.  554  US342 


 100- 
 102 
 EARTH 


 EXPLORATION- 


 SATELLITE 
 (passive) 


 RADIO 
 ASTRONOMY  SPACE  RESEARCH  (passive)  5.340  5.  341 


 100- 
 102 
 EARTH 


 EXPLORATION- 


 SATELLITE 
 (passive) 


 RADIO 
 ASTRONOMY 


 US74 


 SPACE 
 RESEARCH 


 (passive) 


 5. 
 341 


 US246 


 102- 
 105 
 FIXED  MOBILE  RADIO 


 ASTRONOMY  5.149  5.  341 


 102- 
 105 
 FIXED  MOBILE  RADIO 


 ASTRONOMY  5.  341  US342 
23
 Federal 
 Communications 


 Commission 


 FCC 
 03-  90 


 24 


 105- 
 109.5  FIXED  MOBILE  RADIO  ASTRONOMY  SPACE  RESEARCH 


 (passive) 
 5.562B 


 5.149 
 5.341 


 105- 
 109.5  FIXED  MOBILE  RADIO  ASTRONOMY  SPACE  RESEARCH 


 (passive) 
 5.562B 


 5. 
 341 


 US342 


 109.  5- 
 111.8 
 EARTH 


 EXPLORATION- 


 SATELLITE 
 (passive) 


 RADIO 
 ASTRONOMY  SPACE  RESEARCH  (passive)  5.340  5.341 


 109.5- 
 111.8 
 EARTH 


 EXPLORATION- 


 SATELLITE 
 (passive) 


 RADIO 
 ASTRONOMY 


 US74 


 SPACE 
 RESEARCH 


 (passive) 


 5. 
 341 


 US246 


 111.  8- 
 114.25  FIXED  MOBILE  RADIO  ASTRONOMY  SPACE  RESEARCH 


 (passive) 
 5.562B 


 5.149 
 5.341 


 111.8- 
 114.25  FIXED  MOBILE  RADIO  ASTRONOMY  SPACE  RESEARCH 


 (passive) 
 5.562B 


 5. 
 341 


 US342 


 114.25- 
 116 
 EARTH 
 EXPLORATION- 


 SATELLITE 
 (passive) 


 RADIO 
 ASTRONOMY  SPACE  RESEARCH  (passive)  5.340  5.341 


 114.25- 
 116 
 EARTH 
 EXPLORATION- 


 SATELLITE 
 (passive) 


 RADIO 
 ASTRONOMY 


 US74 


 SPACE 
 RESEARCH 


 (passive) 


 5. 
 341 


 US246 


 Page 
 84 
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 119. 
 98- 
 164 


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 States 
 Table 


 Region 
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 2 


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 Government 


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 Federal 


 Government 


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 Rule 
 Part( 
 s) 


 116- 
 119.98  EARTH  EXPLORATION- 


 SATELLITE 
 (passive) 


 INTER- 
 SATELLITE 


 5.562C 


 SPACE 
 RESEARCH 


 (passive) 


 5.341 


 116- 
 122.25  EARTH  EXPLORATION- 


 SATELLITE 
 (passive) 


 INTER- 
 SATELLITE 


 5.562C 


 SPACE 
 RESEARCH 


 (passive) 


 119. 
 98- 
 122. 


 25 


 EARTH 
 EXPLORATION- 


 SATELLITE 
 (passive) 


 INTER- 
 SATELLITE 


 5.562C 


 SPACE 
 RESEARCH 


 (passive) 


 5.138 
 5.341 


 5. 
 138 


 5. 
 341 


 US211 


 ISM 
 Equipment 


 (18) 


 122.25- 
 123 
 FIXED  INTER- 
 SATELLITE  MOBILE  5.  558  Amateur  5.138 


 122.25- 
 123 
 FIXED  INTER- 
 SATELLITE  MOBILE  5.558  5.138 


 122.25- 
 123 
 FIXED  INTER- 
 SATELLITE  MOBILE  5.  558  Amateur  5.138 


 ISM 
 Equipment 


 (18) 


 Amateur 
 (97) 


 123-  130  FIXED 
 SATELLITE 


 (space- 
 to- 
 Earth) 


 MOBILE- 
 SATELLITE 


 (space- 
 to- 
 Earth) 


 RADIONAVIGATION  RADIONAVIGATION- 
 SATELLITE 
 Radio 
 astronomy 


 5.562D 


 5.149 
 5.554 


 123- 
 130 
 FIXED- 


 SATELLITE 


 (space-  to- 
 Earth) 


 MOBILE- 
 SATELLITE 


 (space-  to- 
 Earth) 


 RADIONAVIGATION  RADIONAVIGATION- 
 SATELLITE 
 Radio 
 astronomy  5.  554  US211  US342 


 130-  134  EARTH 
 EXPLORATION- 


 SATELLITE 
 (active) 
 5.562E 


 FIXED  INTER- 
 SATELLITE  MOBILE  5.  558  RADIO  ASTRONOMY  5.149  5.562A 


 130- 
 134 
 EARTH 


 EXPLORATION- 


 SATELLITE 
 (active) 
 5.562E 


 FIXED  INTER- 
 SATELLITE  MOBILE  5.558  RADIO  ASTRONOMY  5.562A  US342 


 134-  136  AMATEUR  AMATEUR- 
 SATELLITE  Radio  astronomy 


 134- 
 136 
 Radio 


 astronomy 


 134- 
 136  AMATEUR  AMATEUR- 


 SATELLITE  Radio  astronomy 


 136-  141  RADIO 
 ASTRONOMY  RADIOLOCATION  Amateur  Amateur-  satellite  5.149 


 136- 
 141 
 RADIO 


 ASTRONOMY  RADIOLOCATION  US342 


 136- 
 141 
 RADIO 


 ASTRONOMY  RADIOLOCATION  Amateur  Amateur-  satellite  US342 


 Amateur 
 (97) 
25
 Federal 
 Communications 


 Commission 


 FCC 
 03-  90 


 26 


 141-  148.5  FIXED  MOBILE  RADIO 
 ASTRONOMY  RADIOLOCATION  5.149 


 141- 
 148.5  FIXED  MOBILE  RADIO  ASTRONOMY  RADIOLOCATION  US342 


 148.  5- 
 151.5 
 EARTH 


 EXPLORATION- 


 SATELLITE 
 (passive) 


 RADIO 
 ASTRONOMY  SPACE  RESEARCH  (passive)  5.340 


 148.5- 
 151.5 
 EARTH 


 EXPLORATION- 


 SATELLITE 
 (passive) 


 RADIO 
 ASTRONOMY 


 US74 


 SPACE 
 RESEARCH 


 (passive) 


 US246 


 151.  5- 
 155.5 
 FIXED  MOBILE  RADIO 
 ASTRONOMY  RADIOLOCATION  5.149 


 151.5- 
 155.5 
 FIXED  MOBILE  RADIO 
 ASTRONOMY  RADIOLOCATION  US342 


 155.  5- 
 158.5 
 EARTH 


 EXPLORATION- 


 SATELLITE 
 (passive) 
 5.  562F 


 FIXED  MOBILE  RADIO 
 ASTRONOMY  SPACE  RESEARCH  (passive) 


 5.562B 


 5.149 
 5.562G 


 155.5- 
 158.5 
 EARTH 


 EXPLORATION- 


 SATELLITE 
 (passive) 
 5.562F 


 FIXED  MOBILE  RADIO 
 ASTRONOMY  SPACE  RESEARCH  (passive) 


 5.562B 


 5.562G 
 US342 


 158. 
 5-  164  FIXED  FIXED- 
 SATELLITE 


 (space-  to- 
 Earth) 


 MOBILE  MOBILE- 
 SATELLITE 


 (space-  to- 
 Earth) 


 158.5- 
 164 
 FIXED  FIXED- 
 SATELLITE 


 (space-  to- 
 Earth) 


 MOBILE  MOBILE- 
 SATELLITE 


 (space-  to- 
 Earth) 


 US211 


 Page 
 86 
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 03-  90 


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 164- 
 217 
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 (EHF) 


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 87 


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 Table 


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 Table 


 Region 
 1 


 Region 
 2 


 Region 
 3 


 Federal 
 Government 


 Non- 
 Federal 


 Government 


 FCC 
 Rule 
 Part( 
 s) 


 164-  167  EARTH 
 EXPLORATION- 


 SATELLITE 
 (passive) 


 RADIO 
 ASTRONOMY  SPACE  RESEARCH  (passive)  5.340 


 164- 
 167 
 EARTH 


 EXPLORATION- 


 SATELLITE 
 (passive) 


 RADIO 
 ASTRONOMY 


 US74 


 SPACE 
 RESEARCH 


 (passive) 


 US246  167-  168  FIXED  FIXED- 
 SATELLITE 


 (space-  to- 
 Earth) 


 INTER- 
 SATELLITE  MOBILE  5.  558  US211  168-  170  FIXED  FIXED-  SATELLITE 


 (space-  to- 
 Earth) 


 INTER- 
 SATELLITE  MOBILE  5.558 


 167-  174.5  FIXED  FIXED- 
 SATELLITE 


 (space-  to- 
 Earth) 


 INTER- 
 SATELLITE  MOBILE  5.  558  5.149  5.562D 


 170- 
 174.5  FIXED  FIXED-  SATELLITE 


 (space-  to- 
 Earth) 


 INTER- 
 SATELLITE  MOBILE  5.558 


 174.  5- 
 174.8 
 FIXED  INTER- 
 SATELLITE  MOBILE  5.  558 


 174.5- 
 174.8 
 FIXED  INTER- 
 SATELLITE  MOBILE  5.558 


 174.8-  182  EARTH 
 EXPLORATION- 


 SATELLITE 
 (passive) 


 INTER- 
 SATELLITE 


 5.562H 


 SPACE 
 RESEARCH 


 (passive) 


 174.8- 
 182 
 EARTH 


 EXPLORATION- 


 SATELLITE 
 (passive) 


 INTER- 
 SATELLITE 


 5.562H 


 SPACE 
 RESEARCH 


 (passive) 


 182-  185  EARTH 
 EXPLORATION- 


 SATELLITE 
 (passive) 


 RADIO 
 ASTRONOMY  SPACE  RESEARCH  (passive)  5.340  5.563 


 182- 
 185 
 EARTH 


 EXPLORATION- 


 SATELLITE 
 (passive) 


 RADIO 
 ASTRONOMY  SPACE  RESEARCH  (passive)  US246 
27
 Federal 
 Communications 


 Commission 


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 03-  90 


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 185-  190  EARTH 
 EXPLORATION- 


 SATELLITE 
 (passive) 


 INTER- 
 SATELLITE 


 5.562H 


 SPACE 
 RESEARCH 


 (passive) 


 185- 
 190 
 EARTH 


 EXPLORATION- 


 SATELLITE 
 (passive) 


 INTER- 
 SATELLITE 


 5.562H 


 SPACE 
 RESEARCH 


 (passive) 


 190-  191.8  EARTH 
 EXPLORATION- 


 SATELLITE 
 (passive) 


 SPACE 
 RESEARCH 


 (passive) 


 5.340 


 190- 
 191.8  EARTH  EXPLORATION- 


 SATELLITE 
 (passive) 


 SPACE 
 RESEARCH 


 (passive) 


 US246 


 191.8-  200  FIXED  INTER- 
 SATELLITE  MOBILE  5.  558  MOBILE-  SATELLITE  RADIONAVIGATION  RADIONAVIGATION- 


 SATELLITE 


 5.149 
 5.341 
 5.554 


 191.8- 
 200 
 FIXED  INTER- 
 SATELLITE  MOBILE  5.558  MOBILE-  SATELLITE  RADIONAVIGATION  RADIONAVIGATION- 


 SATELLITE 


 5. 
 341 


 5. 
 554 


 US211 


 200-  202  EARTH 
 EXPLORATION- 


 SATELLITE 
 (passive) 


 RADIO 
 ASTRONOMY  SPACE  RESEARCH  (passive)  5.340  5.341  5.563A  202-  209  EARTH  EXPLORATION- 


 SATELLITE 
 (passive) 


 RADIO 
 ASTRONOMY  SPACE  RESEARCH  (passive)  5.340  5.341  5.563A 


 200- 
 209 
 EARTH 


 EXPLORATION- 


 SATELLITE 
 (passive) 


 RADIO 
 ASTRONOMY 


 US74 


 SPACE 
 RESEARCH 


 (passive) 


 5. 
 341 


 5. 
 563A 


 US246 


 209-  217  FIXED  FIXED- 
 SATELLITE 


 (Earth-  to- 
 space) 


 MOBILE  RADIO  ASTRONOMY  5.149  5.341 


 209- 
 217 
 FIXED  FIXED- 


 SATELLITE 


 (Earth- 
 to- 
 space) 


 MOBILE  RADIO  ASTRONOMY  5.  341  US342 


 Page 
 88 
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 03-  90 


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 (EHF) 


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 89 


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 Table 


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 States 
 Table 


 Region 
 1 


 Region 
 2 


 Region 
 3 


 Federal 
 Government 


 Non- 
 Federal 


 Government 


 FCC 
 Rule 
 Part( 
 s) 


 217-  226  FIXED  FIXED- 
 SATELLITE 


 (Earth-  to- 
 space) 


 MOBILE  RADIO  ASTRONOMY  SPACE  RESEARCH 
 (passive) 
 5.562B 


 5.149 
 5.341 


 217- 
 226 
 FIXED  FIXED- 


 SATELLITE 


 (Earth- 
 to- 
 space) 


 MOBILE  RADIO  ASTRONOMY  SPACE  RESEARCH 
 (passive) 
 5.562B 


 5. 
 341 


 US342 


 226-  231.5  EARTH 
 EXPLORATION- 


 SATELLITE 
 (passive) 


 RADIO 
 ASTRONOMY  SPACE  RESEARCH  (passive)  5.340 


 226- 
 231.5  EARTH  EXPLORATION- 


 SATELLITE 
 (passive) 


 RADIO 
 ASTRONOMY  SPACE  RESEARCH  (passive)  US246 


 231.5-  232  FIXED  MOBILE  Radiolocation 
 231.5- 
 232 
 FIXED  MOBILE  Radiolocation 


 232-  235  FIXED  FIXED- 
 SATELLITE 


 (space- 
 to- 
 Earth) 


 MOBILE  Radiolocation 


 232- 
 235 
 FIXED  FIXED- 


 SATELLITE 


 (space-  to- 
 Earth) 


 MOBILE  Radiolocation 


 235- 
 238 
 EARTH 


 EXPLORATION- 


 SATELLITE 
 (passive) 


 FIXED- 
 SATELLITE 


 (space-  to- 
 Earth) 


 SPACE 
 RESEARCH 


 (passive) 


 5.563A 
 5. 
 563B 


 235- 
 238 
 EARTH 


 EXPLORATION- 


 SATELLITE 
 (passive) 


 FIXED- 
 SATELLITE 


 (space-  to- 
 Earth) 


 SPACE 
 RESEARCH 


 (passive) 


 5. 
 563A 


 5.563B 


 238-  240  FIXED  FIXED- 
 SATELLITE 


 (space-  to- 
 Earth) 


 MOBILE  RADIOLOCATION  RADIONAVIGATION  RADIONAVIGATION- 
 SATELLITE 


 238- 
 240 
 FIXED  FIXED- 


 SATELLITE 


 (space-  to- 
 Earth) 


 MOBILE  RADIOLOCATION  RADIONAVIGATION  RADIONAVIGATION- 
 SATELLITE 


 240-  241  FIXED  MOBILE  RADIOLOCATION 
 240- 
 241 
 FIXED  MOBILE  RADIOLOCATION 
29
 Federal 
 Communications 


 Commission 


 FCC 
 03-  90 


 30 


 241-  248  RADIO 
 ASTRONOMY  RADIOLOCATION  Amateur  Amateur-  satellite  5.138  5.149 


 241- 
 248 
 RADIO 


 ASTRONOMY  RADIOLOCATION  5.  138  US342 


 241-  248  RADIO 
 ASTRONOMY  RADIOLOCATION  Amateur  Amateur-  satellite  5.138  US342 


 ISM 
 Equipment 


 (18) 


 Amateur 
 (97) 


 248- 
 250  AMATEUR  AMATEUR- 


 SATELLITE  Radio  astronomy  5.149 


 248- 
 250 
 Radio 


 astronomy  US342 


 248-  250  AMATEUR  AMATEUR- 
 SATELLITE  Radio  astronomy  US342 


 Amateur 
 (97) 


 250- 
 252 
 EARTH 


 EXPLORATION- 


 SATELLITE 
 (passive) 


 RADIO 
 ASTRONOMY  SPACE  RESEARCH  (passive)  5.340  5.  563A 


 250- 
 252 
 EARTH 


 EXPLORATION- 


 SATELLITE 
 (passive) 


 RADIO 
 ASTRONOMY 


 US74 


 SPACE 
 RESEARCH 


 (passive) 


 5.563A 
 US246 


 252-  265  FIXED  MOBILE  MOBILE- 
 SATELLITE 


 (Earth- 
 to- 
 space) 


 RADIO 
 ASTRONOMY  RADIONAVIGATION  RADIONAVIGATION-  SATELLITE  5.149  5.554 


 252- 
 265 
 FIXED  MOBILE  MOBILE- 


 SATELLITE 


 (Earth- 
 to-  space) 


 RADIO 
 ASTRONOMY  RADIONAVIGATION  RADIONAVIGATION-  SATELLITE  5.  554  US211  US342 


 265-  275  FIXED  FIXED- 
 SATELLITE 


 (Earth-  to- 
 space) 


 MOBILE  RADIO  ASTRONOMY  5.149  5.563A 


 265- 
 275 
 FIXED  FIXED- 


 SATELLITE 


 (Earth- 
 to- 
 space) 


 MOBILE  RADIO  ASTRONOMY  5.563A  US342 


 275- 
 1000 


 (Not 
 allocated) 


 5. 
 565 


 275- 
 1000  (Not  allocated) 


 5. 
 565 


 Page 
 90 
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 *  *  *  *  * 
 UNITED  STATES  (US)  FOOTNOTES 
 *  *  *  *  * 
 US74  In  the  bands  25.55-  25.67,  73.0-  74.6,  406.1-  410.0,  608-  614,  1400-  1427,  1660.5-  1670.0,  2690-2700,  and  4990-  5000  MHz  and  in  the  bands  10.68-  10.7,  15.35-  15.  4,  23.6-  24.  0,  31.  3-  31.  5,  86-  92,  100- 
 102,  109.5-  111.8,  114.25-  116,  148.5-  151.5,  164-  167,  200-  209,  and  250-  252,  the  radio  astronomy  service  shall  be  protected  from  extraband  radiation  only  to  the  extent  that  such  radiation  exceeds  the  level  which 
 would  be  present  if  the  offending  station  were  operating  in  compliance  with  technical  standards  or  criteria  applicable  to  the  service  in  which  it  operates.  Radio  astronomy  observations  in  these  bands  are  performed 
 at  the  locations  listed  in  US311. 
 *  *  *  *  * 
 US211  In  the  bands  1670-  1690,  5000-  5250  MHz  and  10.7-  11.7,  15.1365-  15.  35,  15.4-  15.7,  22.5-  22.55,  24-  24.05,  31.0-  31.3,  31.8-  32.0,  40.5-  42.5,  84-  86,  123-  130,  158.5-  164,  167-  168,  191.  8-  200,  and 


 252-  265  GHz,  applicants  for  airborne  or  space  station  assignments  are  urged  to  take  all  practicable  steps  to  protect  radio  astronomy  observations  in  the  adjacent  bands  from  harmful  interference;  however,  US74 
 applies. 
 *  *  *  *  * 
 US246  No  station  shall  be  authorized  to  transmit  in  the  following  bands:  608-  614  MHz,  except  for  medical  telemetry  equipment,  1 


 1400-  1427  MHz,  1660.5-  1668.4  MHz, 
 2690-  2700  MHz,  4990-  5000  MHz, 
 10.  68-  10.  7  GHz,  15.  35-  15.  4  GHz, 
 23.  6-  24  GHz,  31.  3-  31.8  GHz, 
 50.  2-  50.4  GHz,  52.  6-  54.25  GHz, 
 86-  92  GHz,  100-  102  GHz, 
 109.5-  111.8  GHz,  114.25-  116  GHz, 
 148.5-  151.5  GHz,  164-  167  GHz, 
 182-  185  GHz,  190-  191.8  GHz, 
 200-  209  GHz,  226-  231.5  GHz, 
 250-  252  GHz, 
 *  *  *  *  * 
 1  Medical  telemetry  equipment  shall  not  cause  harmful  interference  to  radio  astronomy  operations  in  the  band  608-614 
 MHz  and  shall  be  coordinated  under  the  requirements  found  in  47  C.  F.  R.    95.1119. 
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 Federal  Communications  Commission  FCC  03-  90 
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 US263  In  the  bands  21.2-  21.4  GHz,  22.21-  22.  5  GHz,  36-  37  GHz,  and  56.26-  58.2  GHz,  the  space  research  and  Earth  exploration-  satellite  services  shall  not  receive  protection  from  the  fixed  and  mobile 
 services  operating  in  accordance  with  the  Table  of  Frequency  Allocations. 
 *  *  *  *  * 
 US342  In  making  assignments  to  stations  of  other  services  to  which  the  bands:  13360-  13410  kHz,  22.81-  22.86  GHz,  136-  148.5  GHz, 


 37.5-  38.  25  MHz,  23.07-  23.12  GHz,  151.5-  158.5  GHz,  322-  328.6  MHz,  31.2-  31.3  GHz,  209-  226  GHz, 
 1330-  1400  MHz,  36.43-  36.5  GHz,  241-  250  GHz,  1610.6-  1613.8  MHz,  42.5-  43.5  GHz,  252-  275  GHz 
 1660-  1670  MHz,  48.94-  49.04  GHz,  3260-  3267  MHz,  76-  81  GHz, 
 3332-  3339  MHz,  95-  100  GHz,  3345.8-  3352.5  MHz,  102-  109.5  GHz, 
 4825-  4835  MHz,  111.8-  114.25  GHz,  14.47-  14.  5  GHz,  128.33-  128.59  GHz, 
 22.01-  22.  21  GHz,  129.23-  129.49  GHz,  22.21-  22.  5  GHz,  130-  134  GHz, 


 are  allocated,  administrations  are  urged  to  take  all  practicable  steps  to  protect  the  radio  astronomy  service  from  harmful  interference.  Emissions  from  spaceborne  or  airborne  stations  can  be  particularly  serious 
 sources  of  interference  to  the  radio  astronomy  service  (see  Nos.  4.5  and  4.6  and  Article  29  of  the  ITU  Radio  Regulations). 


 *  *  *  *  * 
 USxxx  In  the  band  55.78-  56.  26  GHz,  in  order  to  protect  stations  in  the  Earth  exploration-  satellite  service  (passive),  the  maximum  power  density  delivered  by  a  transmitter  to  the  antenna  of  a  fixed  service 


 station  is  limited  to  -28.5  dB(  W/  MHz). 
 *  *  *  *  * 
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 Federal  Communications  Commission  FCC  03-  90 
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 APPENDIX  B 
 INITIAL  REGULATORY  FLEXIBILITY  CERTIFICATION 
 The  Regulatory  Flexibility  Act  of  1980,  as  amended  (RFA),  2  requires  that  regulatory  flexibility  analyses  be  prepared  for  notice-  and-  comment  rule  making  proceedings,  unless  the  agency  certifies  that 
 the  rule  will  not,  if  promulgated,  have  a  significant  economic  impact  on  a  substantial  number  of  small  entities.  3  The  RFA  generally  defines  the  term  small  entity  as  having  the  same  meaning  as  the  terms 
 small  business,  small  organization,  and  small  governmental  jurisdiction.  4  In  addition,  the  term  small  business  has  the  same  meaning  as  the  term  small  business  concern  under  the  Small  Business 
 Act.  5  A  small  business  concern  is  one  which:  (1)  is  independently  owned  and  operated;  (2)  is  not  dominant  in  its  field  of  operation;  and  (3)  satisfies  any  additional  criteria  established  by  the  Small 
 Business  Administration  (SBA).  6 
 In  this  Notice,  we  propose  to  realign  allocations  in  the  bands  76-  81  GHz  and  95-  1000  GHz  consistent  with  the  international  allocation  changes  obtained  at  WRC-  2000.  This  proposal  would  align 
 passive  allocations  for  RAS  and  Earth-  exploration  satellite  services  with  spectrum  that  is  more  suited  for  such  operations  and  would  continue  the  Commissions  efforts  to  promote  the  commercial  development 
 and  growth  of  the  millimeter  wave  spectrum,  which  will  provide  for  future  developments  in  technology  and  equipment.  In  this  Notice,  we  also  propose  to  adopt  domestically  the  United  States  proposal  at  WRC-2000 
 in  regards  to  the  maximum  power  density  delivered  by  a  transmitter  to  the  antenna  of  a  fixed  service  in  the  55.78-  56.  26  GHz  band.  This  proposal  will  protect  EESS  from  unaccepted  interference  from  fixed 
 and  mobile  operations.  These  proposed  changes  will  not  cause  a  significant  adverse  economic  impact  to  small  entities  because  there  are  no  licensed  commercial  uses  above  76  GHz;  that  is,  no  incumbent 
 licensees  will  be  affected.  Service  rules  will  be  adopted  in  later  proceedings,  as  appropriate. 
 Therefore,  we  certify  that  the  proposals  in  the  Notice,  if  adopted,  will  not  have  a  significant  economic  impact  on  a  substantial  number  of  small  entities.  The  Commission  will  send  a  copy  of  this  Notice, 


 including  a  copy  of  this  Initial  Regulatory  Flexibility  Certification,  to  the  Chief  Counsel  for  Advocacy  of  the  SBA.  7  This  initial  certification  will  also  be  published  in  the  Federal  Register.  8 


 2  See  5  U.  S.  C.    603.  The  RFA,  see  5  U.  S.  C.    601-  612,  has  been  amended  by  the  Small  Business  Regulatory 
 Enforcement  Fairness  Act  of  1996  (SBREFA),  Pub.  L.  N.  104-  121,  Title  II,  110  Stat.  857  (1996). 
 3  5  U.  S.  C.    605(  b). 


 4  5  U.  S.  C.    601(  6). 
 5  5  U.  S.  C.    601(  3)  (incorporating  by  reference  the  definition  of  small-  business  concern  in  the  Small  Business 
 Act,  15  U.  S.  C.    632).  Pursuant  to  5  U.  S.  C.    601(  3),  the  statutory  definition  of  a  small  business  applies  unless  an  agency,  after  consultation  with  the  Office  of  Advocacy  of  the  Small  Business  Administration  and  after  opportunity 


 for  public  comment,  establishes  one  or  more  definitions  of  such  term  which  are  appropriate  to  the  activities  of  the  agency  and  publishes  such  definition(  s)  in  the  Federal  Register. 


 6  15  U.  S.  C.    632. 
 7  5  U.  S.  C.    605(  b). 
 8  Id. 


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