RF Exposure Report

FCC ID: YCK-DR900S-2CH

RF Exposure Info

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FCCID_3892374

Page 1 of 10 Report No. : OT-185-RWD-038 ELECTROMAGNETIC EMISSION COMPLIANCE REPORT FOR L OW-POWER, NON-LICENSED TRANSMITTER Test Report No. : OT-185-RWD-038 AGR No. : A184A-099 Applicant : Pittasoft Co., Ltd Address : 7F, BYC HIGH CITY Building A 131, Gasan Digital-ro, Geumcheon-gu, Seoul, 08506, South Korea Manufacturer : Pittasoft Co., Ltd Address : 7F, BYC HIGH CITY Building A 131, Gasan Digital-ro, Geumcheon-gu, Seoul, 08506, South Korea Type of Equipment : Car Dashcam FCC ID. : YCK-DR900S-2CH Model Name : DR900S-2CH Multiple Model Name : DR900S-1CH, DR900S-2CH IR, DR900S-2CH Truck, DR900GW-1CH, DR900GW-2CH, DR900GW-2CH IR, DR900GW-2CH Truck Serial number : N/A Total page of Report : 10 pages (including this page) Date of Incoming : April 19, 2018 Date of issue : May 18, 2018 SUMMARY The equipment complies with the regulation; FCC PART 15 SUBPART E Section 15.407 This test report only contains the result of a single test of the sample supplied for the examination. It is not a generally valid assessment of the features of the respective products of the mass-production. Reviewed by: Approved by: Jae-Ho Lee / Chief Engineer Keun-Young, Choi / Vice President ONETECH Corp. ONETECH Corp. It should not be reproduced except in full, without the written approval of ONETECH Corp. EMC-003 (Rev.2) ONETECH Corp.: 43-14, Jinsaegol-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, 12735, Korea (TEL: 82-31-799-9500, FAX: 82-31-799-9599)

Page 2 of 10 Report No. : OT-185-RWD-038 CONTENTS PAGE 1. VERIFICATION OF COMPLIANCE ............................................................................................................................. 4 2. GENERAL INFORMATION ............................................................................................................................................ 5 2.1 PRODUCT DESCRIPTION................................................................................................................................................. 5 2.2 ALTERNATIVE TYPE(S)/MODEL(S); ALSO COVERED BY THIS TEST REPORT. ................................................................ 6 3. EUT MODIFICATIONS .................................................................................................................................................... 6 4. MAXIMUM PERMISSIBLE EXPOSURE ...................................................................................................................... 7 4.1 RF EXPOSURE CALCULATION ....................................................................................................................................... 7 4.2 EUT DESCRIPTION ......................................................................................................................................................... 8 5. CALCULATED MPE SAFE DISTANCE ........................................................................................................................ 9 5.1 TEST DATA FOR DC 12 V ............................................................................................................................................... 9 5.2 TEST DATA FOR DC 24 V ............................................................................................................................................... 9 5.3 CALCULATION RESULT OF MAXIMUM CONDUCTED POWER .................................................................................... 10 It should not be reproduced except in full, without the written approval of ONETECH Corp. EMC-003 (Rev.2) ONETECH Corp.: 43-14, Jinsaegol-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, 12735, Korea (TEL: 82-31-799-9500, FAX: 82-31-799-9599)

Page 3 of 10 Report No. : OT-185-RWD-038 REVISION HISTORY Issued Report No. Issued Date Revisions Effect Section OT-185-RWD- May 18, 2018 Initial Issue All 038 It should not be reproduced except in full, without the written approval of ONETECH Corp. EMC-003 (Rev.2) ONETECH Corp.: 43-14, Jinsaegol-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, 12735, Korea (TEL: 82-31-799-9500, FAX: 82-31-799-9599)

Page 4 of 10 Report No. : OT-185-RWD-038 1. VERIFICATION OF COMPLIANCE Applicant : Pittasoft Co., Ltd Address : 7F, BYC HIGH CITY Building A 131, Gasan Digital-ro, Geumcheon-gu, Seoul, 08506, South Korea Contact Person : Inseok, Seo / Senior Engineer Telephone No. : +82-2-6947-4670 FCC ID : YCK-DR900S-2CH Model Name : DR900S-2CH Brand Name : Serial Number : N/A Date : May 18, 2018 EQUIPMENT CLASS Unlicensed National Information Infrastructure(UNII) E.U.T. DESCRIPTION Car Dashcam THIS REPORT CONCERNS Original Grant MEASUREMENT PROCEDURES ANSI C63.10: 2013 TYPE OF EQUIPMENT TESTED Pre-Production KIND OF EQUIPMENT Certification AUTHORIZATION REQUESTED EQUIPMENT WILL BE OPERATED FCC PART 15 SUBPART E Section 15.407 UNDER FCC RULES PART(S) KDB 789033 D01 General UNII Test Procedures Modifications on the Equipment to Achieve None Compliance Final Test was Conducted On 3 m, Semi Anechoic Chamber -. The above equipment was tested by ONETECH Corp. for compliance with the requirement set forth in the FCC Rules and Regulations. This said equipment in the configuration described in this report, shows the maximum emission levels emanating from equipment are within the compliance requirements. It should not be reproduced except in full, without the written approval of ONETECH Corp. EMC-003 (Rev.2) ONETECH Corp.: 43-14, Jinsaegol-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, 12735, Korea (TEL: 82-31-799-9500, FAX: 82-31-799-9599)

Page 5 of 10 Report No. : OT-185-RWD-038 2. GENERAL INFORMATION 2.1 Product Description The Pittasoft Co., Ltd, Model DR900S-2CH (referred to as the EUT in this report) is a Car Dashcam. Product specification information described herein was obtained from product data sheet or user’s manual. DEVICE TYPE Car Dashcam FREQUENCY WLAN 2.4 GHz Band 2 422 MHz ~ 2 452 MHz (802.11n(HT40)) RANGE WLAN 5 GHz Band 5 775 MHz (802.11ac(VHT80)) MAX. RF OUTPUT WLAN 2.4 GHz Band 802.11n(HT40) (15.89 dBm) POWER WLAN 5 GHz Band 5 725 MHz ~ 5 850 MHz Band 802.11ac(HT80) (8.49 dBm) MODULATION WLAN 2.4 GHz Band OFDM Modulation(BPSK/QPSK/16QAM/64QAM) TYPE WLAN 5 GHz Band OFDM Modulation(BPSK/QPSK/16QAM/64QAM) ANTENNA TYPE FPCB Antenna WLAN 2.4 GHz Band 3.0 dBi ANTENNA GAIN WLAN 5 GHz Band 5 725 MHz ~ 5 850 MHz 4.0 dBi List of each Osc. or crystal 24 MHz, 26 MHz, 37.125 MHz, 40 MHz Freq.(Freq. >= 1 MHz) POWER RE QUIREMENT DC 12 V / DC 24 V It should not be reproduced except in full, without the written approval of ONETECH Corp. EMC-003 (Rev.2) ONETECH Corp.: 43-14, Jinsaegol-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, 12735, Korea (TEL: 82-31-799-9500, FAX: 82-31-799-9599)

Page 6 of 10 Report No. : OT-185-RWD-038 2.2 Alternative type(s)/model(s); also covered by this test report. -. The following lists consist of the added model and their differences. Model Name Differences Tested DR900S-2CH Basic Model  DR900S-1CH DR900S-2CH IR DR900S-2CH Truck These models are identical to the basic model except for the model DR900GW-1CH name, and have been added at the request of the exporting country  DR900GW-2CH buyers. DR900GW-2CH IR DR900GW-2CH Truck Note: 1. Applicant consigns only basic model to test. Therefore this test report just guarantees the units, which have been tested. 2. The Applicant/manufacturer is responsible for the compliance of all variants. 3. EUT MODIFICATIONS -. None It should not be reproduced except in full, without the written approval of ONETECH Corp. EMC-003 (Rev.2) ONETECH Corp.: 43-14, Jinsaegol-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, 12735, Korea (TEL: 82-31-799-9500, FAX: 82-31-799-9599)

Page 7 of 10 Report No. : OT-185-RWD-038 4. MAXIMUM PERMISSIBLE EXPOSURE 4.1 RF Exposure Calculation According to the FCC rule 1.1310 table 1B, the limit for the maximum permissible RF exposure for an uncontrolled environment are f/1500 mW/cm² for the frequency range between 300 MHz and 1 500 MHz and 1.0 mW/cm² for the frequency range between 1 500 MHz and 100 000 MHz. The electric field generated for a 1 mW/cm² exposure is calculated as follows: E = √ (30 * P * G) / d, and S = E² / Z = E² / 377, because 1 mW/cm² = 10 W/m² Where S = Power density in mW/cm², Z = Impedance of free space, 377 Ω E = Electric filed strength in V/m, G = Numeric antenna gain, and d = distance in meter Combing equations and rearranging the terms to express the distance as a function of the remaining variable d = √ (30 * P * G) / (377 *10 S) Changing to units of mW and cm, using P (mW) = P (W) / 1 000, d (cm) = 0.01 * d (m) d = 0.282 * √ (P * G) / S Where d = distance in cm, P = Power in mW, G = Numeric antenna gain, and S = Power density in mW/cm² It should not be reproduced except in full, without the written approval of ONETECH Corp. EMC-003 (Rev.2) ONETECH Corp.: 43-14, Jinsaegol-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, 12735, Korea (TEL: 82-31-799-9500, FAX: 82-31-799-9599)

Page 8 of 10 Report No. : OT-185-RWD-038 4.2 EUT Description Kind of EUT Car Dashcam □ Wireless Microphone: 494.000 MHz ~ 501.000 MHz and 498.200 MHz ~ 505.200 MHz □ WLAN: 2 412 MHz ~ 2 462 MHz ■ WLAN: 2 422 MHz ~ 2 452 MHz □ WLAN: 5 180 MHz ~ 5 240 MHz □ WLAN: 5 190 MHz ~ 5 230 MHz Operating Frequency Band □ WLAN: 5 210 MHz □ WLAN: 5 745 MHz ~ 5 825 MHz □ WLAN: 5 755 MHz ~ 5 795 MHz ■ WLAN: 5 775 MHz □ Bluetooth: 2 402 MHz ~ 2 480 MHz □ GFSK Modulation: 2403 MHz , 2443 MHz , 2478 MHz □ Portable (< 20 cm separation) Device Category ■ Mobile (> 20 cm separation) □ Others ■ MPE Exposure Evaluation Applied □ SAR □ N/A It should not be reproduced except in full, without the written approval of ONETECH Corp. EMC-003 (Rev.2) ONETECH Corp.: 43-14, Jinsaegol-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, 12735, Korea (TEL: 82-31-799-9500, FAX: 82-31-799-9599)

Page 9 of 10 Report No. : OT-185-RWD-038 5. Calculated MPE Safe Distance 5.1 Test data for DC 12 V According to above equation, the following result was obtained. Power Target Power Max tune up Antenna Gain Safe Density Limit Operating W/tolerance power Operating Mode Distance (mW/cm²) (mW/ Freq. Band (cm) @ 20 cm cm²) (dBm) (dBm) (mW) Log Linear Separation 5 725 802.11ac(HT80) 5.84 ± 0.5 6.34 4.31 4 2.512 0.93 0.002 2 1.00 ~5 850 According to above table, for 5 725 ~ 5 850 MHz Band, safe distance, D = 0.282 * √ (4.31 * 2.512)/1.00 = 0.93 cm. For getting power density at 20 cm separation in above table, following formula was used. S = P * G / (4 * R²) = 4.31 * 2.512 / (4 * 3.14 * 20^2) = 0.002 2 Where: S = Power Density, P = Power input to the external antenna (Output power from the EUT antenna port (dBm) – cable loss (dB)), G = Gain of Transmit Antenna (linear gain), R = Distance from Transmitting Antenna 5.2 Test data for DC 24 V According to above equation, the following result was obtained. Power Target Power Max tune up Antenna Gain Safe Density Limit Operating W/tolerance power Operating Mode Distance (mW/cm²) (mW/ Freq. Band (cm) @ 20 cm cm²) (dBm) (dBm) (mW) Log Linear Separation 5 725 802.11ac(HT80) 7.99 ± 0.5 8.49 7.06 4 2.512 1.19 0.003 5 1.00 ~5 850 According to above table, for 5 725 ~ 5 850 MHz Band, safe distance, D = 0.282 * √ (7.06 * 2.512)/1.00 = 1.19 cm. For getting power density at 20 cm separation in above table, following formula was used. S = P * G / (4 * R²) = 7.06 * 2.512 / (4 * 3.14 * 20^2) = 0.003 5 Where: S = Power Density, P = Power input to the external antenna (Output power from the EUT antenna port (dBm) – cable loss (dB)), G = Gain of Transmit Antenna (linear gain), R = Distance from Transmitting Antenna It should not be reproduced except in full, without the written approval of ONETECH Corp. EMC-003 (Rev.2) ONETECH Corp.: 43-14, Jinsaegol-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, 12735, Korea (TEL: 82-31-799-9500, FAX: 82-31-799-9599)

Page 10 of 10 Report No. : OT-185-RWD-038 5.3 Calculation Result Of Maximum Conducted Power Power Target Power Max tune up Antenna Gain Safe Density Limit Operating W/tolerance power Operating Mode Distance (mW/cm²) (mW/ Freq. Band (cm) @ 20 cm cm²) (dBm) (dBm) (mW) Log Linear Separation 2 400 802.11n(HT40) 15.39 ± 0.5 15.89 38.82 3 1.995 2.48 0.015 4 1.00 ~ 2 483.5 5 725 802.11ac(HT80) 7.99 ± 0.5 8.49 7.06 4 2.512 1.19 0.003 5 1.00 ~5 850 2.4 GHz band + 5 GHz band = (0.015 4 / 1) + (0.003 5 / 1) = 0.018 9 - Therefore the maximum calculations of above situations are less than the “1” limit. Tested by: Min-Gu Ji / Assistant Manager It should not be reproduced except in full, without the written approval of ONETECH Corp. EMC-003 (Rev.2) ONETECH Corp.: 43-14, Jinsaegol-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, 12735, Korea (TEL: 82-31-799-9500, FAX: 82-31-799-9599)


Document Created: 2019-10-18 15:50:04
Document Modified: 2019-10-18 15:50:04
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