Request for Confidential Treatment and Exhibits ABC PUBLIC

0092-EX-ST-2015 Text Documents

Google Inc.

2015-02-06ELS_158738

    PUBLIC  REDACTED  VERSION   Google  Inc.   File  No.  0092-­EX-­ST-­2015     Date:   February  6,  2015   Subject: Public  and  Redacted  Version  of  Request  for  Confidential  Treatment  and     Complementary  Exhibits     FCC  File  Number: 0092-­EX-­ST-­2015       To  Whom  It  May  Concern:   Google  Inc.  (Google),  pursuant  to  5  U.S.C.  §  552  and  Sections  0.457  and  0.459  of  the   Commission's  Rules,  47  C.F.R.  §§  0.457,  0.459,  hereby  requests  that  certain  information   provided  in  its  above-­referenced  application  for  Special  Temporary  Authority  (File  No.   0092-­EX-­ST-­2015)  (STA  Application)  be  treated  as  confidential  and  not  subject  to  public   inspection.    The  designated  information  constitutes  confidential  and  proprietary  information   that,  if  subject  to  public  disclosure,  would  cause  significant  commercial,  economic,  and   competitive  harm.    As  described  below,  Google’s  request  satisfies  the  standards  for  grant  of   such  requests  set  forth  in  Sections  0.457  and  0.459  of  the  Commission’s  Rules.   In  accordance  with  Section  0.459(b)  and  in  support  of  this  request,  Google  provides   the  following  information:     1. Identification  of  the  Information  for  Which  Confidential  Treatment  is  Sought:     Google’s  request  for  confidential  treatment  is  limited  to  information  that  has  been   redacted  from  the  STA  Application  and  Exhibits  A,  B,  and  C.    Google  does  not  seek  to   withhold  from  public  inspection  information  in  the  STA  Application  and  associated   exhibits  necessary  for  interference  mitigation,  including  applicant  name,  contact   information,  test  location,  frequency,  output  power,  effective  radiated  power,  emission   characteristics,  and  modulation.     Exhibit  A  -­  Narrative  Statement     Google  requests  confidential  treatment  of  the  following  underlined  text  from   Exhibit  A  that  contain  confidential  and  proprietary  information  regarding  the   proposed  tests/experiments:   Consistent  with  the  standards  set  forth  in  Section  5.61  of  the  Federal   Communications  Commission’s  (FCC’s  or  Commission’s)  Rules,  47  C.F.R.  §   5.61,  Google  Inc.  (Google)  requests  Special  Temporary  Authority  (STA)  to   conduct  demonstrations  of  experimental  transmitters.    The  STA  is  sought  for  a   period  of  180  days  from  the  date  of  grant,  which  Google  respectfully  requests  as   soon  as  possible.    Google  outlines  below  its  need  for  the  STA  and  the  reasons   why  the  STA  should  be  granted  expeditiously.   Request  for  Confidential  Treatment  -­  Page  1  

    PUBLIC  REDACTED  VERSION   Google  Inc.   File  No.  0092-­EX-­ST-­2015     Google  seeks  to  continuously  operate  a  GPS  re-­radiating  kit  within  a  confined   and  carefully  controlled  industrial  indoor  environment.    In  doing  so,  Google  will   [REDACTED]  .    This  will  allow  Google  to    [REDACTED]  .       The  GPS  re-­radiator  will  have  an  antenna  mounted  to  a  15-­meter  roof  to  receive   GPS  signals,  cable  from  the  roof  to  the  indoor  location,  amplifier,  and  passive   re-­radiating  antenna.    The  re-­radiating  antenna  will  mount  to  the  ceiling  of  the   room  at  nine  meters  from  the  ground  and  face  downward  over  the  test  setup.   The  passive  re-­radiating  antenna  will  provide  GPS  information  to    [REDACTED]  .   This  test  set-­up  will  allow  Google  to  mitigate  potential  interference  risks  between   different  components.     The  proposed  operations  will  be  conducted  without  harmful  interference  to  other   authorized  users,  and  Google  is  prepared  to  coordinate  with  any  federal  users   as  necessary.    The  re-­radiation  system  will  be  located  indoors,  in  a  large,  secure   structure.    The  system  will  be  positioned  at  least  20  feet  from  the  nearest   outside  wall  of  the  building.    The  worst  case  signal  strength  at  100  feet  from  the   re-­radiating  antenna  is  6  dB  below  the  maximum  allowed  power  of  -­140  dBm/24   MHz.    Given  the  low  signal  strength  and  the  positioning  of  the  system  within  the   structure,  the  likelihood  of  any  interference  occurring  is  very  low.    In  particular,   because  the  re-­radiating  antenna  will  be  operating  indoors  in  a   Google-­controlled  facility,  this  signal  will  be  attenuated  by  building  loss,  further   reducing  any  minimal  likelihood  of  harmful  interference  outside  that  facility.     As  demonstrated  in  Exhibit  C,  the  proposed  experimental  operations  will  be   conducted  in  accordance  with  technical  requirements  that  the  National   Telecommunications  and  Information  Administration  (NTIA)  has  established  for   federal  agencies’  use  of  GPS  re-­radiators.    Satisfaction  of  these  guidelines,   although  not  required  for  the  requested  Commission  authorization,  further   demonstrates  that  the  experimentation  will  be  conducted  without  risk  of  harmful   interference  to  other  users.     For  these  reasons,  Google  requests  approval  of  this  application.       Exhibit  B  -­  Technical  Information:     Google  requests  confidential  treatment  of  the  following  underlined  text  from   Exhibit  B  that  contain  confidential  and  proprietary  information  regarding  the   proposed  tests/experiments:           Request  for  Confidential  Treatment  -­  Page  2  

    PUBLIC  REDACTED  VERSION   Google  Inc.   File  No.  0092-­EX-­ST-­2015     Legal  Contact  Details   Name  of  Contact   Megan  Anne  Stull   Contact  Details   Counsel   25  Massachusetts  Avenue  NW,  Ninth  Floor   Washington  DC  20001     Technical  Contact  Details   Name  of  Contact   Paul  Miller   Contact  Details   2175  Monarch  Street   Alameda,  CA  94501   Phone:  (619)  871-­6246   Email:  paulmi@google.com     Transmitter  Equipment  and  Station  Details   Radio  Information   Equipment  Manuf  /  PN   [REDACTED]   Number  of  Units   [REDACTED]   Area  of  Operation   Operation  not  to  exceed  0.05  km  from  the   following  geographic  centerpoint:     ● 37°  46'  58"  N,  122°  18'  27"  W       Frequencies     (MHz)   [REDACTED]   1575.42  MHz   [REDACTED]   1227.60  MHz     Antenna  Details   Antennas     Type   Omnidirectional   Quantity   [REDACTED]   Gain   3.5  dBi           Request  for  Confidential  Treatment  -­  Page  3  

    PUBLIC  REDACTED  VERSION   Google  Inc.   File  No.  0092-­EX-­ST-­2015       Radio   Modulation   Emission   Bandwidth   Maximum   Maximum   Designator   Power  Out   EIRP   [REDACTED]   N/A     24M0G1D   N/A     6.2E-­12  W   -­108.6  dBW   (GPS   (GPS   amplification)   amplification)     Exhibit  C  -­  Technical  Information:    Technical  Guidelines  for  GPS   Re-­Radiators     Google  requests  confidential  treatment  of  the  following  underlined  text  from   Exhibit  C  that  contain  confidential  and  proprietary  information  regarding  the   proposed  tests/experiments:     In  connection  with  its  application  for  Special  Temporary  Authority  (STA)  (File   No.  0092-­EX-­ST-­2015),  Google  Inc.  submits  the  following  information  to   demonstrate  its  satisfaction  of  the  technical  requirements  the  National   Telecommunications  and  Information  Administration  (NTIA)  has  established  for   federal  agencies’  use  of  GPS  re-­radiators,  as  set  out  in  Section  8.3.28  of  the   NTIA  Manual  of  Regulations  and  Procedures  for  Federal  Radio  Frequency   Management.1       Section  8.3.28(a):    Individual  authorization  is  for  indoor  use  only,  and  is  required   for  each  device  at  a  specific  site.     The  device  will  be  used  indoors,  within  a  masonry  structure.    It  will  be  located  at   [REDACTED]    (37°  46'  58"  N,  122°  18'  27"  W).     Section  8.3.28(d):    The  maximum  length  of  the  assignment  will  be  two  years,   with  possible  renewal.       Google  is  seeking  an  STA  for  180  days.    Should  Google  seek  to  extend  this   STA,  it  will  file  a  separate  application  with  Commission.       Section  8.3.28(e):    The  area  of  potential  interference  to  GPS  reception  (e.g.,   military  or  contractor  facility)  has  to  be  under  the  control  of  the  user.       1    National  Telecommunications  and  Information  Administration  ,    Manual  of  Regulations  and   Procedures  for  Federal  Radio  Frequency  Management      §  8.3.28  (2014),    available  at   http://www.ntia.doc.gov/files/ntia/publications/redbook/2014-­05/8_14_5.pdf.   Request  for  Confidential  Treatment  -­  Page  4  

    PUBLIC  REDACTED  VERSION   Google  Inc.   File  No.  0092-­EX-­ST-­2015     Google  leases  the  building  where  the  GPS  repeater  will  be  placed  under  an   agreement  that  extends  beyond  2015.    Google  will  control  access  to  the  building   at  all  times  covered  by  the  requested  STA.       Section  8.3.28(f):    The  maximum  equivalent  isotropically  radiated  power  (EIRP)   must  be  such  that  the  calculated  emissions  are  no  greater  than  -­140  dBm/24   MHz  as  received  by  an  isotropic  antenna  at  a  distance  of  100  feet  (30  meters)   from  the  building  where  the  test  is  being  conducted.  The  calculations  showing   compliance  with  this  requirement  must  be  provided  with  the  application  for   frequency  assignment  and  should  be  based  on  free  space  propagation  with  no   allowance  for  additional  attenuation  (e.g.,  building  attenuation).     Google’s  analysis  demonstrating  compliance  with  these  limits  is  set  forth  below.     -­130  dBm GPS  power  at  the  receiving  antenna   +40  dB Receiving  antenna  pre-­amplifier   -­5.1  dB Cable  loss  (100  ft.  LMR-­400)   +33  dB Maximum  power  amplifier  gain  (+24  dB  nominal)     -­10  dB Fixed  attenuator   -­4.9  dB Variable  attenuator   -­5.1  dB Cable  loss  (100  ft  LMR-­400)   +3.5  dBi Transmitting  antenna  peak  gain   -­  78.6  dBm Equivalent  EIRP  from  the  re-­radiator     Calculation  of  loss  for  free  space  propagation  using  ITU  model:     Free  space  loss  (dB)  =  20log(f)  +  20log(d)  –  27.54     Where:   d  (Distance  in  meters  from  re-­radiating  antenna  to  100  ft  outside  the  building)  =   36  m   f  (Carrier  frequency  in  MHz)  =  1575.24  MHz     -­67.5  dB Free  space  gain  at  100  ft  from  the  building   -­78.6  dBm Equivalent  EIRP  from  the  re-­radiator   -­146.1  dBm   Received  power  100  ft  from  the  building  (less  than  -­140  dBm   required)     Section  8.3.28(g):    GPS  users  in  the  area  of  potential  interference  to  GPS   reception  must  be  notified  that  GPS  information  may  be  impacted  for  periods  of   time.     Request  for  Confidential  Treatment  -­  Page  5  

    PUBLIC  REDACTED  VERSION   Google  Inc.   File  No.  0092-­EX-­ST-­2015       During  the  period  covered  by  the  STA,  Google  will  post  prominent  signage  on   the  exterior  of  the  building  notifying  GPS  users  that  GPS  information  may  be   impacted  for  periods  of  time  during  testing.       Section  8.3.28(h):    The  use  is  limited  to  activity  for  the  purpose  of  testing  RNSS   equipment/systems.       Activities  under  the  STA’s  authorization  will  be  limited  to  those  related  to  testing   RNSS  equipment/systems.       Section  8.3.28(i):    A  "Stop  Buzzer"  point  of  contact  for  the  authorized  device   must  be  identified  and  available  at  all  times  during  GPS  re-­radiation  operation  of   the  device  under  any  condition.     Google’s  point  of  contact  for  the  experiment  will  be  Paul  Miller.  His  contact   information  is  as  follows:  2175  Monarch  Street,  Alameda,  CA  94501,  (619)   871-­6246.     2. Identification  of  the  Commission  proceeding  in  which  the  information  was   submitted  or  a  description  of  the  circumstances  giving  rise  to  the  submission.     Exhibits  A,  B,  and  C  were  submitted  to  the  Commission  in  support  of  the  STA   Application.    The  Exhibits  were  filed  with  the  Office  of  Engineering  and  Technology  on   February  6,  2015.    For  additional  information,  please  see  File  No.  0092-­EX-­ST-­2015.       3. Explanation  of  the  degree  to  which  the  information  is  commercial  or  financial  or   contains  a  trade  secret  or  is  privileged.       The  information  requested  to  be  kept  confidential  has  significant  commercial  value.   The  exhibits  supporting  the  STA  Application  discuss  tests/experiments  that  include   trade  secret  information.    The  Commission  has  clarified  that  confidential  treatment   2 should  be  afforded  to  trade  secrets.  Google’s  tests/experiments  represent  a  “secret   commercially  valuable  plan”  within  the  meaning  of  a  trade  secret  as  recognized  by  the   Commission.       4. Explanation  of  the  degree  to  which  the  information  concerns  a  service  that  is   competitive.       2      Examination  of  Current  Policy  Concerning  the  Treatment  of  Confidential  Information  Submitted  to  the   Commission  ,  Report  and  Order,  GC  Docket  No.  96-­55,  at  para.  3,  (released  Aug.  4,  1998)  (defining  “trade   secrets”  for  purpose  of  Commission  rules  on  confidential  treatment).   Request  for  Confidential  Treatment  -­  Page  6  

    PUBLIC  REDACTED  VERSION   Google  Inc.   File  No.  0092-­EX-­ST-­2015     The  services  and  technologies  that  are  the  subject  of  this  STA  Application  have  not  yet   been  fully  developed  but  are  expected  to  lead  to  material  developments  in  markets   subject  to  competition  from  multiple  U.S.  and  non-­U.S.  third  parties.       5. Explanation  of  how  disclosure  of  the  information  could  result  in  substantial   competitive  harm.       The  technology  under  development  is  highly  sensitive  and  confidential  in  nature.    The   release  of  such  information  would  provide  valuable  insight  into  Google’s  technology   innovations  and  potential  business  plans  and  strategies.    Public  disclosure  would   jeopardize  the  value  of  the  technology  under  examination  by  enabling  others  to  utilize   Google’s  information  to  develop  similar  products  in  a  similar  time  frame.       6. Identification  of  any  measures  taken  by  the  requesting  party  to  prevent   unauthorized  disclosure.     Google  has  taken  steps  to  keep  confidential  the  information  set  forth  in  the  confidential   exhibits  by  limiting  the  number  of  people  involved  in  the  tests/experiments  to  only   those  on  a  “need  to  know”  basis,  and  will  require  that  all  third  parties  involved  in  any   preliminary  analysis  execute  robust  nondisclosure  agreements.     7. Identification  of  whether  the  information  is  available  to  the  public  and  the  extent   of  any  previous  disclosures  of  the  information  to  any  third  parties.     The  information  contained  in  the  confidential  exhibits  is  not  available  to  the  public,  and   will  only  be  disclosed  to  third  parties  pursuant  to  the  restrictive  safeguards  described   above.     Google  voluntarily  provides  the  information  to  the  Commission  at  this  time  with  the   expectation  that  it  will  be  treated  confidentially  in  accordance  with  the  Commission's   rules.    See  Critical  Mass  Energy  Project  v.  Nuclear  Regulatory  Comm’n  ,  975  F.2d  871,   879  (D.C.  Cir.  1992)  (commercial  information  provided  on  a  voluntary  basis  “is   ‘confidential’  for  the  purpose  of  Freedom  of  Information  Act  (FOIA)  Exemption  4  if  it  is   of  a  kind  that  would  customarily  not  be  released  to  the  public  by  the  person  from  whom   it  was  obtained.”)     8. Justification  of  the  requested  period  of  confidentiality.       Google  expects  that  confidential  treatment  will  be  necessary  for  the  length  of  the   proposed  experiment  and  thereafter  in  order  to  protect  its  evolving  business  and   technology  strategies.     9. Any  other  information  that  would  be  useful  in  assessing  whether  this  request   should  be  submitted.     Request  for  Confidential  Treatment  -­  Page  7  

    PUBLIC  REDACTED  VERSION   Google  Inc.   File  No.  0092-­EX-­ST-­2015     The  information  subject  to  this  request  for  confidentiality  should  not  be  made  available   for  public  disclosure  at  any  time.    There  is  nothing  material  that  public  review  of  this   information  would  add  to  the  Commission’s  analysis  of  Google’s  request  for  a  special   temporary  authorization.       Moreover,  public  disclosure  of  the  sensitive  information  in  the  confidential  exhibits  to   the  STA  Application  after  the  Commission  has  ruled  on  the  Request  for  Confidentiality   is  not  necessary  for  the  Commission  to  fulfill  its  regulatory  responsibilities.       Consistent  with  47  C.F.R.  §  0.459(d)(l),  Google  requests  notification  if  release  of  the   information  subject  to  this  request  is  requested  pursuant  to  the  FOIA  or  otherwise,  so   that  Google  may  have  an  opportunity  to  oppose  grant  of  any  such  request.     Sincerely,     Megan  Anne  Stull     Request  for  Confidential  Treatment  -­  Page  8  

    PUBLIC  REDACTED  VERSION   Google  Inc.   File  No.  0092-­EX-­ST-­2015       EXHIBIT  A  –  SPECIAL  TEMPORARY  AUTHORITY  JUSTIFICATION   Consistent  with  the  standards  set  forth  in  Section  5.61  of  the  Federal  Communications   Commission’s  (FCC’s  or  Commission’s)  Rules,  47  C.F.R.  §  5.61,  Google  Inc.  (Google)   requests  Special  Temporary  Authority  (STA)  to  conduct  demonstrations  of  experimental   transmitters.    The  STA  is  sought  for  a  period  of  180  days  from  the  date  of  grant,  which  Google   respectfully  requests  as  soon  as  possible.    Google  outlines  below  its  need  for  the  STA  and   the  reasons  why  the  STA  should  be  granted  expeditiously.   Google  seeks  to  continuously  operate  a  GPS  re-­radiating  kit  within  a  confined  and  carefully   controlled  industrial  indoor  environment.    In  doing  so,  Google  will    [REDACTED]  .    This  will   allow  Google  to    [REDACTED]  .       The  GPS  re-­radiator  will  have  an  antenna  mounted  to  a  15-­meter  roof  to  receive  GPS  signals,   cable  from  the  roof  to  the  indoor  location,  amplifier,  and  passive  re-­radiating  antenna.    The   re-­radiating  antenna  will  mount  to  the  ceiling  of  the  room  at  nine  meters  from  the  ground  and   face  downward  over  the  test  setup.    The  passive  re-­radiating  antenna  will  provide  GPS   information  to    [REDACTED]  .    This  test  set-­up  will  allow  Google  to  mitigate  potential   interference  risks  between  different  components.     The  proposed  operations  will  be  conducted  without  harmful  interference  to  other  authorized   users,  and  Google  is  prepared  to  coordinate  with  any  federal  users  as  necessary.    The   re-­radiation  system  will  be  located  indoors,  in  a  large,  secure  structure.    The  system  will  be   positioned  at  least  20  feet  from  the  nearest  outside  wall  of  the  building.    The  worst  case  signal   strength  at  100  feet  from  the  re-­radiating  antenna  is  6  dB  below  the  maximum  allowed  power   of  -­140  dBm/24  MHz.    Given  the  low  signal  strength  and  the  positioning  of  the  system  within   the  structure,  the  likelihood  of  any  interference  occurring  is  very  low.    In  particular,  because   the  re-­radiating  antenna  will  be  operating  indoors  in  a  Google-­controlled  facility,  this  signal  will   be  attenuated  by  building  loss,  further  reducing  any  minimal  likelihood  of  harmful  interference   outside  that  facility.     As  demonstrated  in  Exhibit  C,  the  proposed  experimental  operations  will  be  conducted  in   accordance  with  technical  requirements  that  the  National  Telecommunications  and   Information  Administration  (NTIA)  has  established  for  federal  agencies’  use  of  GPS   re-­radiators.    Satisfaction  of  these  guidelines,  although  not  required  for  the  requested   Commission  authorization,  further  demonstrates  that  the  experimentation  will  be  conducted   without  risk  of  harmful  interference  to  other  users.     For  these  reasons,  Google  requests  approval  of  this  application.         Exhibit  A  -­  Page  1  

    PUBLIC  REDACTED  VERSION   Google  Inc.   File  No.  0092-­EX-­ST-­2015       EXHIBIT  B  -­  TECHNICAL  INFORMATION       Legal  Contact  Details   Name  of  Contact   Megan  Anne  Stull   Contact  Details   Counsel   25  Massachusetts  Avenue  NW,  Ninth  Floor   Washington  DC  20001     Technical  Contact  Details   Name  of  Contact   Paul  Miller   Contact  Details   2175  Monarch  Street   Alameda,  CA  94501   Phone:  (619)  871-­6246   Email:  paulmi@google.com     Transmitter  Equipment  and  Station  Details   Radio  Information   Equipment  Manuf  /  PN   [REDACTED]   Number  of  Units   [REDACTED]   Area  of  Operation   Operation  not  to  exceed  0.05  km  from  the   following  geographic  centerpoint:     ● 37°  46'  58"  N,  122°  18'  27"  W       Frequencies     (MHz)   [REDACTED]   1575.42  MHz   [REDACTED]   1227.60  MHz     Antenna  Details   Antennas     Type   Omnidirectional   Quantity   [REDACTED]   Gain   3.5  dBi           Exhibit  B  -­  Page  1  

    PUBLIC  REDACTED  VERSION   Google  Inc.   File  No.  0092-­EX-­ST-­2015         Radio   Modulation   Emission   Bandwidth   Maximum   Maximum   Designator   Power   EIRP   Out   [REDACTED]   N/A     24M0G1D   N/A     6.2E-­12  W   -­108.6   (GPS   (GPS   dBW   amplification)   amplification)         Exhibit  B  -­  Page  2  

    PUBLIC  REDACTED  VERSION   Google  Inc.   File  No.  0092-­EX-­ST-­2015       EXHIBIT  C  -­-­  TECHNICAL  GUIDELINES  FOR  GPS  RE-­RADIATORS     Google  requests  confidential  treatment  of  the  following  underlined  text  from  Exhibit  C  that   contain  confidential  and  proprietary  information  regarding  the  proposed  tests/experiments:     In  connection  with  its  application  for  Special  Temporary  Authority  (STA)  (File  No.   0092-­EX-­ST-­2015),  Google  Inc.  submits  the  following  information  to  demonstrate  its   satisfaction  of  the  technical  requirements  the  National  Telecommunications  and  Information   Administration  (NTIA)  has  established  for  federal  agencies’  use  of  GPS  re-­radiators,  as  set   out  in  Section  8.3.28  of  the  NTIA  Manual  of  Regulations  and  Procedures  for  Federal  Radio   Frequency  Management.1       Section  8.3.28(a):    Individual  authorization  is  for  indoor  use  only,  and  is  required  for  each   device  at  a  specific  site.     The  device  will  be  used  indoors,  within  a  masonry  structure.    It  will  be  located  at   [REDACTED]    (37°  46'  58"  N,  122°  18'  27"  W).     Section  8.3.28(d):    The  maximum  length  of  the  assignment  will  be  two  years,  with  possible   renewal.       Google  is  seeking  an  STA  for  180  days.    Should  Google  seek  to  extend  this  STA,  it  will  file  a   separate  application  with  Commission.       Section  8.3.28(e):    The  area  of  potential  interference  to  GPS  reception  (e.g.,  military  or   contractor  facility)  has  to  be  under  the  control  of  the  user.       Google  leases  the  building  where  the  GPS  repeater  will  be  placed  under  an  agreement  that   extends  beyond  2015.    Google  will  control  access  to  the  building  at  all  times  covered  by  the   requested  STA.       Section  8.3.28(f):    The  maximum  equivalent  isotropically  radiated  power  (EIRP)  must  be  such   that  the  calculated  emissions  are  no  greater  than  -­140  dBm/24  MHz  as  received  by  an   isotropic  antenna  at  a  distance  of  100  feet  (30  meters)  from  the  building  where  the  test  is   being  conducted.  The  calculations  showing  compliance  with  this  requirement  must  be   provided  with  the  application  for  frequency  assignment  and  should  be  based  on  free  space   propagation  with  no  allowance  for  additional  attenuation  (e.g.,  building  attenuation).   1    National  Telecommunications  and  Information  Administration  ,    Manual  of  Regulations  and   Procedures  for  Federal  Radio  Frequency  Management      §  8.3.28  (2014),    available  at   http://www.ntia.doc.gov/files/ntia/publications/redbook/2014-­05/8_14_5.pdf.   Exhibit  C  -­  Page  1  

    PUBLIC  REDACTED  VERSION   Google  Inc.   File  No.  0092-­EX-­ST-­2015         Google’s  analysis  demonstrating  compliance  with  these  limits  is  set  forth  below.     -­130  dBm GPS  power  at  the  receiving  antenna   +40  dB Receiving  antenna  pre-­amplifier   -­5.1  dB Cable  loss  (100  ft.  LMR-­400)   +33  dB Maximum  power  amplifier  gain  (+24  dB  nominal)     -­10  dB Fixed  attenuator   -­4.9  dB Variable  attenuator   -­5.1  dB Cable  loss  (100  ft  LMR-­400)   +3.5  dBi Transmitting  antenna  peak  gain   -­  78.6  dBm Equivalent  EIRP  from  the  re-­radiator     Calculation  of  loss  for  free  space  propagation  using  ITU  model:     Free  space  loss  (dB)  =  20log(f)  +  20log(d)  –  27.54     Where:   d  (Distance  in  meters  from  re-­radiating  antenna  to  100  ft  outside  the  building)  =  36  m   f  (Carrier  frequency  in  MHz)  =  1575.24  MHz     -­67.5  dB Free  space  gain  at  100  ft  from  the  building   -­78.6  dBm Equivalent  EIRP  from  the  re-­radiator   -­146.1  dBm   Received  power  100  ft  from  the  building  (less  than  -­140  dBm   required)     Section  8.3.28(g):    GPS  users  in  the  area  of  potential  interference  to  GPS  reception  must  be   notified  that  GPS  information  may  be  impacted  for  periods  of  time.       During  the  period  covered  by  the  STA,  Google  will  post  prominent  signage  on  the  exterior  of   the  building  notifying  GPS  users  that  GPS  information  may  be  impacted  for  periods  of  time   during  testing.       Section  8.3.28(h):    The  use  is  limited  to  activity  for  the  purpose  of  testing  RNSS   equipment/systems.       Activities  under  the  STA’s  authorization  will  be  limited  to  those  related  to  testing  RNSS   equipment/systems.       Exhibit  C  -­  Page  2  

    PUBLIC  REDACTED  VERSION   Google  Inc.   File  No.  0092-­EX-­ST-­2015       Section  8.3.28(i):    A  "Stop  Buzzer"  point  of  contact  for  the  authorized  device  must  be   identified  and  available  at  all  times  during  GPS  re-­radiation  operation  of  the  device  under  any   condition.     Google’s  point  of  contact  for  the  experiment  will  be  Paul  Miller.  His  contact  information  is  as   follows:  2175  Monarch  Street,  Alameda,  CA  94501,  (619)  871-­6246.     Exhibit  C  -­  Page  3  


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