This document presents an RF exposure assessment for the BrightCity™ LoRaWAN Meter Interface Unit, specifically the Mirra CX1-2AS Plus model, along with its variants Mirra CX1-2AS Lite, Mirra CX1-2AU Plus, and Mirra CX1-2AU Lite. The assessment ensures compliance with RF exposure requirements as per FCC regulations, particularly §1.1307(b)(3) and KDB 447498 D04. The device, manufactured by ST Engineering Urban Solutions Ltd., operates within the 902.3-927.7MHz frequency range and utilizes CSS modulation with a spring antenna.
The report details the RF output power, antenna gain, and calculations for determining RF exposure exemption based on various FCC rules, including options A, B, and C. It includes a calculated result section, presenting the prediction frequency, output power, antenna gain, duty cycle, and time-averaged power to determine the ERP and exposure limit. The assessment concludes with a pass result, indicating that the device operates within the permissible RF exposure limits.
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This document presents an RF exposure assessment for the BrightCity™ LoRaWAN Meter Interface Unit, specifically the Mirra CX1-2AS Plus model, along with its variants Mirra CX1-2AS Lite, Mirra CX1-2AU Plus, and Mirra CX1-2AU Lite. The assessment ensures compliance with RF exposure requirements as per FCC regulations, particularly §1.1307(b)(3) and KDB 447498 D04. The device, manufactured by ST Engineering Urban Solutions Ltd., operates within the 902.3-927.7MHz frequency range and utilizes CSS modulation with a spring antenna.
The report details the RF output power, antenna gain, and calculations for determining RF exposure exemption based on various FCC rules, including options A, B, and C. It includes a calculated result section, presenting the prediction frequency, output power, antenna gain, duty cycle, and time-averaged power to determine the ERP and exposure limit. The assessment concludes with a pass result, indicating that the device operates within the permissible RF exposure limits.
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