2BTS3-0303110AUTO EXHAUST SILENCER SYSTEM

FCC ID LABEL: Ca. 20mm x 10mm Label Location 、 FCC ID: 2BTS3‐0303110

FCC RF Exposure EUT Description: AUTO EXHAUST SILENCER SYSTEM Model No.: 0303110 FCC ID: 2BTS3-0303110 1. Limits According to KDB 447498 D01 General RF Exposure Guidance v06 The 1‐g and 10‐g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤50 mm are determined by: [(max power of channel, including tune‐up tolerance, mW)/(min. test separation distance, mm)]ꞏ[√f(GHz)]≤3.0 for 1‐g SAR and ≤ 7.5 for 10‐g extremity SAR, Where: Result=P/D*√F F= the RF channel transmit frequency in GHz P=Maximum turn‐up power in mw D=Min. test separation distance in mm 2. Test Result of RF Exposure Evaluation EIRP(dBm)=80.08(dBuV/m)-95.2= -15.12(dBm) Frequency (MHz) Output power (dBm) Tune Up Power (dBm) Max Tune Up power (mW) Min test separation distance (mm) Result Limit SAR Test Exclusion 315 -15.12 -16±1(-15) 0.032 5 0.00355 3.0 Pass Note: PK Output power= conducted power. Conducted power see the test report HK2511136159-E, antenna gain= 0dBi Per KDB 447498 D01, when the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine RF Exposure test exclusion. The test exclusion threshold is 0.00355 which is≤ 3, RF Exposure testing is not required. Note: Exclusion Thresholds Results=[(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] ꞏ[√f (GHz)] f(GHz) is the RF channel transmit frequency in GHz Distance=5mm

Manufacturer: Dongguan Saishuo Electronics Co., LTD Address: 5th Floor, No. 62, Chonghuan Middle Road, Shijie Town, Dongguan City, Guangdong Province, China Antenna Type: PCB Antenna Name: 315M Antenna Antenna Gain: 0dBi The antenna is straightened to a length of 25cm, and the outer diameter of the winding wire is 6mm

Page 1 of 29 Report No.: HK2511136159-E Prepared For: Wenzhou Junjie Locomotive Parts Co., Ltd Room 101, Production Workshop No. 7, Wanyang Zhongchuang City, No. 20 Hengyu Road, Binhai New Area, Pingyang County, Wenzhou City, Zhejiang Province, China Prepared By: Shenzhen HUAK Testing Technology Co., Ltd. 1-2/F., Building B2, Junfeng Zhongcheng Zhizao Innovation Park, Heping, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China Date of Test: Nov. 13, 2025 ~ Dec. 09, 2025 Date of Report: Dec. 09, 2025 Report Number: HK2511136159-E FCC Test Report Test Report On Behalf of Wenzhou Junjie Locomotive Parts Co., Ltd For AUTO EXHAUST SILENCER SYSTEM Model No.: 0303110 FCC ID: 2BTS3-0303110 Applica Address Manufa Address Produc Trade M Product Model a Standa This pu b Shenzh the mat e assume due to it Date of Date (s ) Date of Test Re s ant’s Name s ................ acturer's Na s ................ ct Descripti Mark ........... t Name ....... and/or Type rds ............ blication ma en HUAK T erial. Shenz e liability for ts placemen Test .......... ) of Perform Issue ......... sult ............ e ................. ................. ame .......... ................. on ................. ................. Reference ................. ay be reprod Testing Tech zhen HUAK damages r nt and conte .................. mance of Tes .................. .................. Testing E Technica l Authoriz e Test R . : Wenzho . : Room 1 0 City, No. Wenzho . : Wenzho . : Room 1 0 City, No. Wenzho . : N/A . : AUTO E : 030311 0 . : FCC Pa r ANSI C6 duced in wh hnology Co. K Testing Te resulting fro ext. ................ : sts ............ : ................ : ................ : ngineer l Manager ed Signatory Page 2 of 2 Result Ce u Junjie Loc 01, Product 20 Hengyu u City, Zhej u Junjie Loc 01, Product 20 Hengyu u City, Zhej XHAUST S 0 rt15 Subpar 63.10: 2020 hole or in pa ., Ltd. is ack echnology C om the reade Nov. 13, 2 Dec. 09, 2 Pass y 29 ertificatio comotive P tion Worksh u Road, Bin jiang Provin comotive P tion Worksh u Road, Bin jiang Provin SILENCER S rt C, Section art for non-c knowledged Co., Ltd. take er's interpre 2025 ~ Dec. 2025 Len L Sliver W Jason Z Rep on arts Co., Lt hop No. 7, W nhai New Ar nce, China arts Co., Lt hop No. 7, W nhai New Ar nce, China SYSTEM n 15.231 commercial d as copyrig es no respo etation of th 09, 2025 Liao Wan Zhou port No.: HK d Wanyang Zh rea, Pingyan d Wanyang Zh rea, Pingyan l purposes a ght owner a onsibility for he reproduc K2511136159 hongchuang ng County, hongchuang ng County, as long as t nd source o r and will no ed material 9-E g g the of ot Page 3 of 29 Report No.: HK2511136159-E Contents 1 Summary ........................................................................................................................................................... 5 1.1 Test Procedures and Results ............................................................................................................. 5 1.2 Information of the Test Laboratory .................................................................................................... 5 1.3 Measurement Uncertainty .................................................................................................................. 5 2 General Information ......................................................................................................................................... 6 2.1 Description of Device (EUT) .............................................................................................................. 6 2.2 List of Channels ................................................................................................................................... 6 2.3 Description of Test Setup .................................................................................................................... 7 2.4 Description of Support Units .............................................................................................................. 8 3 Test Equipment List ......................................................................................................................................... 9 4 AC Conducted Emission Test ...................................................................................................................... 10 4.1 AC Conducted Power Line Emission Limit .................................................................................... 10 4.2 Test Setup ........................................................................................................................................... 10 4.3 Test Procedure ................................................................................................................................... 10 4.4 Test Data............................................................................................................................................. 11 5 Radiated Emissions ....................................................................................................................................... 12 5.1 Standard Applicable .......................................................................................................................... 12 5.2 Test Procedure ............................................................................................................................. ...... 12 5.3 Corrected Amplitude & Margin Calculation .................................................................................... 14 5.4 Environmental Conditions ................................................................................................................ 14 5.5 Test Data............................................................................................................................................. 14 6 20dB Occupied Bandwidth Test .................................................................................................................. 19 6.1 Standard Appli…

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Test Model：0303110 Radiated Emission RF Conducted Emission