Attachment Radiation Hazard Ku

This document pretains to SES-LIC-20140915-00722 for License on a Satellite Earth Station filing.

IBFS_SESLIC2014091500722_1061133

RADIATION  HAZARD  STUDY  FOR  ANTENNA:  Ku  Band  -­‐  Prodelin  1.8  m       This  analysis   predicts  the   radiation   levels   around   a   proposed   earth   station   complex,  comprised   of  one   or   more  aperture   (reflector)  type antennas.   This   report   is   developed   in   accordance   with   the   prediction   methods   contained   in   OET   Bulletin   No.   65,   "Evaluating Compliance   with   FCC   Guidelines   for   Human   Exposure   to   Radio   Frequency   Electromagnetic   Fields,"   Edition   97-­‐01,   pp   26-­‐30.   The maximum   level   of   non-­‐ionizing   radiation   to   which   employees   may   be   exposed   is   limited   to   a   power   density   level   of   5   milliwatts   per square  centimeter  (5   mW/cm2)  averaged   over  any  6   minute  period  in   a  controlled   environment   and  the  maximum  level  of  non-­‐ionizing radiation  to  which  the  general  public  is   exposed  is  limited  to  a  power  density  level  of  1  milliwatt  per  square  centimeter  (1  mW/cm2) averaged  over  any  30  minute  period  in  a  uncontrolled  environment.  Note  that  the  worse-­‐case  radiation  hazards  exist  along  the  beam axis.   Under   normal   circumstances,   it   is   highly   unlikely   that   the   antenna   axis   will   be   aligned   with   any   occupied   area   since   that   would represent  a  blockage  to  the  desired  signals,  thus  rendering  the  link  unusable.     The  parameters  which  determine  the  radiation  levels  for  the  proposed  earth  station  antenna  site  follows:     Earth  Station  Technical  Parameter  Table:           Power Density on Axis   Calculation method as per FCC OET Bulletin 65     Antenna   Antenna diameter (m) 1.8 Frequency   (GHz) 14 Antenna efficiency 0.64   Source Power (W) 9.53 Transmit Power (W) 12 W/G Loss from transmitter (dB) 0 Backoff (dB) 1     Wavelenght (m) 0.021 Antenna surface area (m^2) 2.545 Antenna isotropic gain (dBi) 46.50 Transmit power density on axis (mW/cm^2) 0.959     Near Field Limit (0->Rnf) Rnf(m) 37.8 Transmit power density on axis (mW/cm^2) at Rnf 0.959   Transition Region (Rnf->Rff) Rnf(m) 90,7 Transmit power density on axis (mW/cm^2) at Rff 0.400   Far-Field limit (Rff->infinity) Transmit power density on axis (mW/cm^2) at Rff 0.412   Serge  Bibas   Head  of  Capacity  and  teleport  management Orange,  Satellite  Factory  


Document Created: 0610-04-21 00:00:00
Document Modified: 0610-04-21 00:00:00
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