Attachment fccradhzkuEWTNSTUDIO

This document pretains to SES-LIC-20100519-00626 for License on a Satellite Earth Station filing.

IBFS_SESLIC2010051900626_818916

EXHIBIT A - ANALYSIS OF ENVIRONMENTAL IMPACT RF NON-IONIZING RADIATION ANALYSIS: A DETAILED RF NON-IONIZING RADIATION HAZARD ANALYSIS WAS CONDUCTED AND IS ATTACHED AS EXHIBIT B. USING THE ASSUMPTION THAT ALL AVAILABLE TRANSMITTER POWER IS APPLIED TO THE IFL INPUT, HARMFUL LEVELS OF RADIATION WILL NOT EXIST IN REGIONS NORMALLY OCCUPIED BY PERSONNEL AS DEFINED BY ANSI CRITERIA (ANSI SPECIFICATIONS REQUIRE THAT PERSONNEL NOT BE EXPOSED TO LEVELS OF NON-IONIZING RADIATION EXCEEDING 5 mW / cm2.) ANTENNA SIZE AND DESCRIPTION OF SURROUNDING AREA: THE EARTH STATION IS LESS THAN 24’ IN DIAMETER AND IS LOCATED WITHIN A BROADCAST STUDIO COMPLEX WITH AN EXISTING SATELLITE ANTENNA FARM PREVIOUSLY AUTHORIZED FOR THIS LOCATION. MOST OF THE RESIDENTIAL HOMES WITHIN VIEW ARE OWNED AND USED BY THIS FACILITY AS STUDIO GUEST QUARTERS. ADDITIONAL PRECAUTIONARY SAFETY MEASURES: PROTECTIVE FENCING WILL BE INSTALLED AND APPROPRIATE WARNING SIGNS WILL BE POSTED. PREPARED AND SUBMITTED BY: BASIL F. PINZONE, JR. 05/19/2010 TECHNICAL CONSULTANT

EXHIBIT B - ANALYSIS OF NON-IONIZING RADIATION HARMFUL LEVELS OF RADIATION WILL NOT EXIST IN REGIONS NORMALLY OCCUPIED BY PERSONNEL. CRITERIA: ANSI SPECIFICATIONS REQUIRE THAT PERSONNEL NOT BE EXPOSED TO LEVELS OF NON-IONIZING RADIATION EXCEEDING 5 mW / cm2. THE FOLLOWING ANALYSES SUPPORT THIS DETERMINATION: FAR FIELD ANALYSIS: EFFICIENCY = = G/( *D/ )2 = 0.586 ANTENNA GAIN = 58.3 dBi (lin 676,083) ANTENNA DIAMETER = 7.2 Meters LAMBDA = 3*108 Meters / 14.25*109 Hz = 0.0210526 POWER MAX AT FLANGE = 1130 Watts (30.5 dBW) DISTANCE TO FAR FIELD = 2*D2/ = 103.68 / 0.0210526 = 4925 Meters ON-AXIS POWER DENSITY = G*P/4* *Far Field Distance2 = 676,083 * 1130 / 12.56637 * 24,255,625 = 2.506 W/m2 = 0.251 mW/cm2 LEVEL IS LESS THAN THE 5 mW/cm2 MAXIMUM ANSI LEVEL PERMITTED NEAR FIELD ANALYSIS (Parallel Beam Region & Transition Region): PARALLEL BEAM REGION ANALYSIS: DISTANCE TO END OF PARALLEL BEAM (CYLINDER) REGION: = DIAMETER2 / 2.5 * = 51.84 / 0.0526315 = 984 Meters POWER DENSITY AT END OF PARALLEL BEAM REGION = P / CYLINDRICAL PARALLEL BEAM AREA = 1130 / 40.715 = 27.75 W / m2 = 2.78 mW / cm2 LEVEL IS LESS THAN THE 5 mW/m2 MAXIMUM ANSI LEVEL PERMITTED ADDITIONAL PRECAUTION: Personnel will not be permitted within 1 meter of the aperture cylinder during normal operations

TRANSITION REGION ANALYSIS: THIS REGION WILL DECREASE INVERSELY WITH DISTANCE BEGINNING AT THE END OF THE PARALLEL BEAM REGION AND WILL NOT EXCEED 2.78 mW / cm2 LEVEL IS LESS THAN THE 5 mW/m2 MAXIMUM ANSI LEVEL PERMITTED ADDITIONAL PRECAUTION: Personnel will not be permitted within 1 meter of the aperture cylinder during normal operations MAIN REFLECTOR ANALYSIS: = P / REFLECTOR AREA = 1130 / 40.715 = 27.75 W / m2 = 2.78 mW / cm2 LEVEL IS LESS THAN THE 5 mW/m2 MAXIMUM ANSI LEVEL PERMITTED ADDITIONAL PRECAUTION: Personnel will not be permitted within 1 meter of the aperture cylinder during normal operations FEED TO SUB-REFLECTOR / REFLECTOR ANALYSIS: POWER DENSITY AT FEED FLANGE = P / FEED AREA = 1130 / 0.159 = 7107 W/m2 = 711 mW/cm2 ! POTENTIAL HAZARD FROM FEED TO SUB-REFLECTOR TO REFLECTOR ! RF POWER WILL BE TURNED OFF DURING ANTENNA MAINTENANCE REQUIRING PERSONNEL TO OCCUPY THE HAZARDOUS CONICAL REGION BETWEEN THE FEED HORN, SUB-REFLECTOR, AND REFLECTOR. PREPARED AND SUBMITTED BY: BASIL F. PINZONE, JR. 05/19/2010 TECHNICAL CONSULTANT


Document Created: 2010-05-21 07:45:13
Document Modified: 2010-05-21 07:45:13
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