FCC RFx rev2

FCC ID: IPH-03346

RF Exposure Info

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FCCID_4127736

RF Exposure . Reference: CFR 47 FCC Part 2.1093 CFR 47 FCC Part 15.245 The user’s manual for this device states: “avoid holding the radar unit while the radar is activated and maintain 20 cm from the device” The user would activate the radar while holding the device in their hand, and then place it on the ground. While the device is being held, it is considered portable. When it is on the ground and the 20cm separation is maintained, it is considered mobile. When device under consideration is considered portable, and is therefore defined under FCC Part 2.1093 (b): (b) For purposes of this section, a portable device is defined as a transmitting device designed to be used so that the radiating structure(s) of the device is/are within 20 centimeters of the body of the user. And Section (d) (d) … Portable devices that transmit at frequencies above 6 GHz are to be evaluated in terms of the MPE limits specified in §1.1310 of this chapter. Measurements and calculations to demonstrate compliance with MPE field strength or power density limits for devices operating above 6 GHz should be made at a minimum distance of 5 cm from the radiating source. Page 1 of 4

RF Exposure The limit for a transmitter operating at 24,110 MHz for general population/uncontrolled exposure is 1 mW/cm 2 Page 2 of 4

RF Exposure Total for mobile (> 20cm) use: Occupational/Controlled 0 General Population/uncontrolled 1 Power +10% for Transmitte Frequenc Antenna toleranc Power r y Gain Power e Density Limit % of limit Highest Total Type numerica mW/cm^ MHz l mW mW/cm^2 2 Percent of limit 1 2402 0.507 1.91 2.10 0.00021 1.0000 0.02% 1 0.02% PK/conducted 1 2440 0.507 1.77 1.94 0.00020 1.0000 0.02% PK/conducted 1 2480 0.507 1.71 1.88 0.00019 1.0000 0.02% PK/conducted 2 24200 1 4.64 5.10 0.00102 1.0000 0.10% 1 0.10% radiated TOTAL 0.12% Distance 20 cm PASS? YES Occupational/Controlled 0 General Population/uncontrolled 1 Page 3 of 4

RF Exposure Although the Field Disturbance Sensor (FDS) is intended to only operate while on the ground and the user is instructed to maintain 20cm of separation from the device while the FDS is operating, the Bluetooth radio may operate while the device is hand held or in the pocket, and for Bluetooth operation, the device could be considered as Portable. Evaluation for portable use with 5mm seperation: Lowest Channel f(GHz) = 2.402 Power = 2.80 dBm conducted Antenna gain = 0.507 dBi 0.41 dB added for 10% power tolerance EIRP + 10% tolerance = 3.72 dBm = 2.36 mW, round to nearest mW = 2 mW [2 mW] / [5.00 mm] • [√2.402 ] = 0.62 Limit = 3.0 EXEMPT Middle Channel f(GHz) = 2.441 Power = 2.47 dBm conducted Antenna gain = 0.507 dBi 0.41 dB added for 10% power tolerance EIRP + 10% tolerance = 3.39 = 2.18 mW, rounded to nearest mW = 2 mW [2 mW] / [5.00 mm] • [√2.440 ] = 0.62 Limit = 3.0 EXEMPT Highest Channel f(GHz) = 2.480 Power = 2.33 dBm conducted Antenna gain = 0.507 dBi 0.41 dB added for 10% power tolerance EIRP + 10% tolerance = 3.25 = 2.11 mW, rounded to nearest mW = 2 mW [2 mW] / [5.00 mm] • [√2.480 ] = 0.63 Limit = 3.0 EXEMPT Page 4 of 4


Document Created: 2018-12-06 08:37:14
Document Modified: 2018-12-06 08:37:14
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