Attachment SESMOD2015030200105A

SESMOD2015030200105A

SUPPLEMENT submitted by U.S. SATELLITE CORPORATION

ANTENNA EXHIBITS A AND B

0000-00-00

This document pretains to SES-MOD-20150302-00105 for Modification on a Satellite Earth Station filing.

IBFS_SESMOD2015030200105_1079082

Exhibit A U.S. Satellite Corporation Call Sign E900470 Modification of License Application February 2015 Description of application U.S. Satellite Corporation hereby requests modification to its earth station license under Call Sign E900470 in the following respects: A. Addition of 0.74 and 0.98 Meter Antennas B. Addition of emission designators A. Addition of 0.74 and 0.98 Meter Antennas Please find attached the signed letter from Intelsat and by SES World Skies, describing the agreement for U.S. Satellite to use the 0.74 and 0.98 Meter Antennas on the Galaxy 18 Satellite at 123 degrees WL as a point of communications with transmit/receive antennas that are not strictly compliant with the FCC's two degree spacing requirements for off-axis side lobe gain. Intelsat and USSC acknowledge that the use of the Hughes Network Systems non- conforming antennas will not cause unacceptable interference into adjacent satellites in accordance with the FCC's two degree spacing requirements and will not seek any additional protection compared to the case of an earth station employing an antenna conforming to the reference patterns defined in 25.209 of the FCC rules. B. Addition of emission designators U.S Satellite requests the addition of emission designators to is existing license for its 1.8 Meter antennas for the 7M00G7D and 14M00G7D emissions. All other aspects of this license remain unchanged.

Radiation Hazard Analysis A radiation hazard analysis was conducted for a 74 centimeter and a 98 centimeter antenna with 2.0 Watts of power applied at the flange at 14 GHz, using the methodology from OET Bulletin 65. The results of this analysis, which can be seen in Exhibit B, shows that the maximum permissible exposure limit (MPE) for the protection of the general public of 1 mW/cm2 is exceeded on the 74 centimeter antenna at the near field area and at the reflector surface. On the 98 centimeter antenna, this limit is exceeded at the reflector surface. The value of 5 mW/cm2 is not exceeded with either the 74 or 98 centimeter antennas in the occupational/Controlled enviroment. The general public will be protected from any access to these areas through the use of either a fenced enclosure around the antenna, a pole mount or an installation on the roof of our buildings. Technical personnel are protected from these areas through training and the transmitter is disabled before performing maintenance in the area surrounding the terminal.

U.S. Satellite Corp. Exhibit B 935 W. Bullion St. U.S. Satellite Corp. Murray, UT 84123-5401 U.S.A. Call Sign: E900470 801-268-5839 FAX: 801-268-5880 Request For Modification for 98cm Antennas Contact: John Lloyd ( lloyd@ussc.com ) Radiation Hazard Calculations for 0.98 meter Earth Station Nomenclature Formula Value Unit(s) Input Parameters M = Antenna Aperture (Major Axis) 0.98 Meters m = Antenna Aperture (Minor Axis) 0.98 Meters d = Diameter of Feed Mouth 0.035 Meters f = Frequency 14.250 GHz P = Maximum power into Antenna 2.0 Watts n = Aperture Efficiency 62.80% k = Wavelength @ f (f=14.250 GHz) 0.0210 Meters Calculated Values A = Area of Reflector Π *M*m/4 0.75 Meters2 l = Length of Near Field M2 / (4k) 11.43 Meters L = Beginning of Far Field 0.6M2/k 27.44 Meters G = Antenna Gain @ f (14.250 GHz) n (4 * Π * A)/k2 (13492) = 41.3 dbi a = Area of Feed Mouth Π * d2/4 0.0010 Meters2 Power Density Calculations Occupational/Controlled Hazard Maximum Power Density In Region Assessment Formula Value (mw/cm2) (FCC MPE Limit >= 5mw/cm2) 1) Near Field 4nP/A 0.67 < FCC MPE Limit 2 2) Far Field GP/(4ΠL ) 0.29 < FCC MPE Limit 3) Transition <= Near Field Region 0.67 < FCC MPE Limit 4) Near Reflector Surface 4P/A 1.06 < FCC MPE Limit 5) Between Reflector and Ground P/A 0.27 < FCC MPE Limit 6) Between Reflector and Feed 4P/a 831.5 > FCC MPE Limit (See Exhibit A) General Population/UnControlled Maximum Power Density In Region Hazard Assessment Formula Value (mw/cm2) (FCC MPE Limit >= 1mw/cm2) 1) Near Field 4nP/A 0.67 < FCC MPE Limit 2 2) Far Field GP/(4ΠL ) 0.29 < FCC MPE Limit 3) Transition <= Near Field Region 0.67 < FCC MPE Limit 4) Near Reflector Surface 4P/A 1.06 > FCC MPE Limit (See Exhibit A) 5) Between Reflector and Ground P/A 0.27 < FCC MPE Limit 6) Between Reflector and Feed 4P/a 831.5 > FCC MPE Limit (See Exhibit A)

U.S. Satellite Corp. Exhibit B 935 W. Bullion St. U.S. Satellite Corp. Murray, UT 84123-5401 U.S.A. Call Sign: E900470 801-268-5839 FAX: 801-268-5880 Request For Modification for 74cm Antennas Contact: John Lloyd ( lloyd@ussc.com ) Radiation Hazard Calculations for 0.74 meter Earth Station Nomenclature Formula Value Unit(s) Input Parameters M = Antenna Aperture (Major Axis) 0.74 Meters m = Antenna Aperture (Minor Axis) 0.56 Meters d = Diameter of Feed Mouth 0.035 Meters f = Frequency 14.250 GHz P = Maximum power into Antenna 2.0 Watts n = Aperture Efficiency 64.97% k = Wavelength @ f (f=14.250 GHz) 0.0210 Meters Calculated Values A = Area of Reflector Π *M*m/4 0.33 Meters2 l = Length of Near Field M2 / (4k) 6.5 Meters L = Beginning of Far Field 0.6M2/k 15.6 Meters G = Antenna Gain @ f (14.250 GHz) n (4 * Π * A)/k2 (6020) = 37.8 dbi a = Area of Feed Mouth Π * d2/4 0.0010 Meters2 Power Density Calculations Occupational/Controlled Hazard Maximum Power Density In Region Assessment Formula Value (mw/cm2) (FCC MPE Limit >= 5mw/cm2) 1) Near Field 4nP/A 1.60 < FCC MPE Limit 2 2) Far Field GP/(4ΠL ) 0.39 < FCC MPE Limit 3) Transition <= Near Field Region 1.60 < FCC MPE Limit 4) Near Reflector Surface 4P/A 2.46 < FCC MPE Limit 5) Between Reflector and Ground P/A 0.62 < FCC MPE Limit 6) Between Reflector and Feed 4P/a 831.5 > FCC MPE Limit (See Exhibit A) General Population/UnControlled Maximum Power Density In Region Hazard Assessment Formula Value (mw/cm2) (FCC MPE Limit >= 1mw/cm2) 1) Near Field 4nP/A 1.60 > FCC MPE Limit (See Exhibit A) 2) Far Field GP/(4ΠL2) 0.39 < FCC MPE Limit 3) Transition <= Near Field Region 1.60 > FCC MPE Limit (See Exhibit A) 4) Near Reflector Surface 4P/A 2.46 > FCC MPE Limit (See Exhibit A) 5) Between Reflector and Ground P/A 0.62 < FCC MPE Limit 6) Between Reflector and Feed 4P/a 831.5 > FCC MPE Limit (See Exhibit A)


Document Created: 2015-03-11 15:54:38
Document Modified: 2015-03-11 15:54:38
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