Attachment Exhibit B

This document pretains to SES-LIC-INTR2019-02348 for License on a Satellite Earth Station filing.

IBFS_SESLICINTR201902348_1720570

Exhibit B Analysis of Non-Ionizing Radiation for Honeywell MCS 8200 & 8000 Antennas The analysis and calculations performed in this Annex comply with the methods described in the FCC Office of Engineering and Technology Bulletin, No. 65, first published in 1985 and revised in 1997 in Edition 97-01. Bulletin No. 65 and the FCC R&O 96-326 specify two Maximum Permissible Exposure (MPE) limits that are dependent on the situation in which the exposure takes place and/or the status of the individuals who are subject to the exposure. These are described below:  General population/uncontrolled environment MPE limit is 1 mW/cm2. The general population/uncontrolled MPE is a function of transmit frequency and is for an exposure period of thirty minutes or less.  Occupational/controlled environment MPE limit is 5 mW/cm2. The occupational MPE is a function of transmit frequency and is for an exposure period of six minutes or less. The analysis provided in this report determined the power flux density levels of the antenna in the: 1) far-field, 2) near-field, 3) transition region, and 4) aperture surface. 1.0 Analysis for the MCS 8200 Antenna1 1.1 Calculations for the MCS 8200 antenna Input Parameter Value Units Symbol Antenna Major Axis Dimension 0.61 m D Antenna Transmit Gain 39.8 dBi G Transmit Frequency 30000 MHz F Power Input to the Antenna 12.6 Watts P Antenna Surface Area 1129 cm² A Antenna Efficiency 0.71 Real Η Calculated Parameter Value Units Symbol Formula Gain Factor 9549.93 Real G 10^(G/10) Wavelength 0.0100 m Λ 300/f Antenna Field Distances Calculated Parameter Value Units Symbol Formula Near-Field Distance 9.3 m Rnf D²/(4λ) Distance to Far-Field 22.3 m Rff 0.6D²/λ Distance of Transition Range 9.3 m Rt Rt=Rnf 1 Since these antennas are identical, the measurements and data are reproduces from ISAT US Application SES-LIC- 20141030-00832 for license E140114

Power Density Calculated Parameter Value Units Symbol Formula Power Density in the Near Field 10.91 mW/cm² Snf 16ηP/(πD²) Power Density in the Far Field 1.0 mW/cm² Sff gP/(4πRff²) Power Density in the Transition Region 10.91 mW/cm² St Snf*Rnf/Rt Power Density at Aperture Surface 39.8 mW/cm² Ssurface 4P/A 1.2 Summary of Results Region Distance Calculated Limit Controlled Limit Uncontrolled (m) Power Environment Environment Density ≤ 5 mW/cm2 ≤ 1 mW/cm2 (mW/cm2) Near Field 9.3 10.91 exceeds limit exceeds limit Far Field 22.3 1.0 meets limit meets limit As summarized in the above table, the MCS 8200 antenna meets the FCC’s MPE levels for controlled or uncontrolled environments in the far field region. The antenna does not meet the FCC’s MPE levels for controlled or uncontrolled environments in the other regions defined above. This antenna model, while designed for operation on larger commercial aircraft, will be installed on a building roof, protected by a locked access door. Since this unit will be used for testing hardware and software, it can be shut down altogether when personnel need access to the roof. Additionally, the exit hatchway to the roof will incorporate signage indicating the presence of RF energy.


Document Created: 2019-06-03 11:18:19
Document Modified: 2019-06-03 11:18:19
© 2024 FCC.report
This site is not affiliated with or endorsed by the FCC