Environmental Assessment

0769-EX-PL-2014 Text Documents

FLIR Radars Inc.

2014-10-28ELS_155041

File No. : 0769-EX-PL-2014 Environmental Assessment Applicant's Name (company): FLIR Radars Inc. Expected Use of Equipment The Experimentation proposed is to demonstrate the R20SS radar capabilities in various areas in the USA. Demonstrations will typically be conducted for 1 to 3 hours at a time. Frequency of the demonstrations is expected to be in the order of 1 or 2 demonstrations per month. Equipment Setup To conduct demonstrations, the R20SS radar will be installed on a tripod with a height from 2 to 6 meters above ground or of an existing building structure. No structure(s) will be built for the purpose of conducting demonstrations under the license being applied for. Safety Hazard The R20SS emission characteristics are as follows: Parameter Value Comment Tx Center frequency 9250 MHz The radar can be configured to or operate in any of 3 channels. 9350 MHz Operation is on one channel at or any time. 9450 MHz Bandwidth 100 MHz (short-range mode) 50 MHz (long-range mode) RF Output Power 25 W peak 20 W average Modulation Linear FMCW Tx Antenna Gain 17 dBi Tx Antenna Beamwidths 90 deg azimuth Half power 5.5 deg elevation Polarization Linear Horizontal Using the limits for Maximum Permissible Exposure for Occupational/Controlled exposure of 5 mW/cm 2, the safe distance is calculated as follows: 𝑃𝐺 𝑅𝑠 = √ = 141 cm 4𝜋 𝑆

File No. : 0769-EX-PL-2014 where S = Power Density ( 5 mW/cm2 ) P = Power Input to Antenna ( 25000 mW ) G = Power Gain of Antenna ( 50.1 or 17 dB ) Rs = Safe distance to center of Antenna Conclusion Given that the antenna will be mounted on a tripod 3 to 6 meters above ground or structure, it can be concluded that the RF emissions will not cause safety hazard for personnel in terms of radiation exposure, the safe distance being calculated at 141 cm. Since the radar is a mobile equipment, no structure or tower will be built and there shall be no environmental impact due to construction. With the safe distance being 1.41 meter and the expected usage being 2 to 8 hours per month, no significant environmental impact on wildlife is expected from the use of the R20SS radar as a mobile demonstration asset.


Document Created: 2014-10-28 12:29:19
Document Modified: 2014-10-28 12:29:19
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