03 FCC RF Exposure_DTS

FCC ID: HYQOGAY17

RF Exposure Info

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FCCID_4297478

RF Exposure / MPE Calculation No. : 12745193H-A Applicant : DENSO CORPORATION Type of Equipment : Telematics Control Unit Model No. : OGAY17 FCC ID : HYQOGAY17 DENSO CORPORATION declares that Model: OGAY17 complies with FCC radiation exposure requirement specified in the FCC Rule 2.1091 (for mobile). RF Exposure Calculations: The following information provides the minimum separation distance for the highest gain antenna provided with the “OGAY17“ as calculated from (B) Limits for General Population / Uncontrolled Exposure of TABLE 1- LIMITS FOR MAXIMUM PERMISSIBLE EXPOSURE (MPE) of §1.1310 Radiofrequency radiation exposure limits. [WLAN (2.4 GHz) part] This calculation is based on the highest EIRP possible from the system, considering maximum power and antenna gain, and considering a 1mW/cm^2 uncontrolled exposure limit. The Friis formula used was: PG S  4  r2 Where P= 27.42 mW (Maximum average output power) Time average was used for the above value in consideration of 6-minutes time-averaging Burst power average was used for the above value in consideration of worst condition. G= 1.563 Numerical Antenna gain; equal to 1.94dBi r= 20 cm (Separation distance) 2 Power Density Result S = 0.00853 mW/cm UL Japan, Inc. Ise EMC Lab. 4383-326 Asama-cho, Ise-shi, Mie-ken 516-0021 JAPAN Telephone : +81 596 24 8999 Facsimile : +81 596 24 8124

OGAY17 contains certified cellular module (FCC ID: JOYDA39)). The WLAN(2.4 GHz) module and the cellular module both transmit simultaneously in their respective bands. Compliance for simultaneous transmission are shown by the following calculations. Reference: [WCDMA Band 2 / LTE Band 2] This calculation is based on the highest EIRP possible from the system, considering maximum power and antenna gain, and considering a 1mW/cm^2 uncontrolled exposure limit. The Friis formula used was: PG S  Where 4  r 2 P×G= 758.58 mW (Maximum EIRP) Time average was used for the above value in consideration of 6-minutes time-averaging Burst power average was used for the above value in consideration of worst condition. r= 20 cm (Separation distance) 2 Power Density Result S = 0.15091 mW/cm [LTE Band 4] This calculation is based on the highest EIRP possible from the system, considering maximum power and antenna gain, and considering a 1mW/cm^2 uncontrolled exposure limit. The Friis formula used was: PG S  Where 4  r 2 P×G= 389.05 mW (Maximum EIRP) Time average was used for the above value in consideration of 6-minutes time-averaging Burst power average was used for the above value in consideration of worst condition. r= 20 cm (Separation distance) 2 Power Density Result S = 0.07740 mW/cm UL Japan, Inc. Ise EMC Lab. 4383-326 Asama-cho, Ise-shi, Mie-ken 516-0021 JAPAN Telephone : +81 596 24 8999 Facsimile : +81 596 24 8124

[WCDMA Band 5 / LTE Band 5] This calculation is based on the highest EIRP possible from the system, considering maximum power and antenna gain, and considering a 1mW/cm^2 uncontrolled exposure limit. The Friis formula used was: PG S  Where 4  r2 P×G= 393.55 mW (Maximum EIRP) Time average was used for the above value in consideration of 6-minutes time-averaging Burst power average was used for the above value in consideration of worst condition. r= 20 cm (Separation distance) 2 Power Density Result S = 0.07829 mW/cm [LTE Band 12] This calculation is based on the highest EIRP possible from the system, considering maximum power and antenna gain, and considering a 1mW/cm^2 uncontrolled exposure limit. The Friis formula used was: PG S  Where 4  r 2 P×G= 295.12 mW (Maximum EIRP) Time average was used for the above value in consideration of 6-minutes time-averaging Burst power average was used for the above value in consideration of worst condition. r= 20 cm (Separation distance) 2 Power Density Result S = 0.05871 mW/cm Therefore, if WLAN 2.4GHz and WCDMA Band 2 / LTE Band 2 transmit simultaneously, S=0.00853 mW/cm2 + 0.15091 mW/cm2 =0.15944 mW/cm2 Therefore, if WLAN 2.4GHz and LTE Band 4 transmit simultaneously, S=0.00853 mW/cm2 + 0.07740 mW/cm2 =0.08593 mW/cm2 Therefore, if WLAN 2.4GHz and WCDMA Band 5 / LTE Band 5 transmit simultaneously, 0.00853/1+0.07829/(824/1500) =0.15105<1 Therefore, if WLAN 2.4GHz and LTE Band 12 transmit simultaneously, 0.00853/1+0.05871/(699/1500) =0.13452<1 Even taking into account the tolerance, this device can be satisfied with the limits. UL Japan, Inc. Ise EMC Lab. 4383-326 Asama-cho, Ise-shi, Mie-ken 516-0021 JAPAN Telephone : +81 596 24 8999 Facsimile : +81 596 24 8124


Document Created: 2019-05-29 11:40:30
Document Modified: 2019-05-29 11:40:30
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