2AFMD-FM23FM Transmitter

FM23 Instruction Manual FM Transmitter 1. Specifications Band: FM Frequency FM Frequency Range:88.1~107.9MHz FM Operating distance:15 feet USB Output:5V/2.4A MAX 2. Instruction: a. Plug the car charger into the car cigarette socket. b. Plug the 3.5mm audio adapter into your phone. c. Tune the car FM radio frequency to an unused FM frequency. d. Tune the FM transmitter into the same frequency with the car FM radio. e. Now you can enjoy your music through the car stereo. 3. Remark: a. Please select a FM frequency which is not used locally. b. If the noisy is too loud, please try other FM frequency. c. For the best audio quality, please turn the volume of the cellphone to the max level. d. The signal of any FM transmitter sometimes can be interfered by the surrounded radio or the similar frequency signal and cause noise. This is normal. e. It is normal that it will cause interference to the FM signal and cause some currency noise if there is a substation nearby. 4. Answering a call Press the “Answer” button of your phone. 5. Ending a call Press the “End” button of your phone. 6. Playing music Skip songs functions must be controlled directly by your audio device. FCC Statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: -Reorient or relocate the receiving antenna. -Increase the separation between the equipment and receiver. -Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. -Consult the dealer or an experienced radio/TV technician for help. To assure continued compliance, any changes or modifications not expressly approved by the party. Responsible for compliance could void the user’s authority to operate this equipment. (Example- use only shielded interface cables when connecting to computer or peripheral devices). This equipment complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation.

SCS-F18: Project and Product Certification Representative Authorization Letter Page 1 of 2 Rev 5.0 775 Montague Expressway Milpitas, CA 95035 Tel: 408-526-1188 Fax: 408-526-1088 Email: [email protected] Project and Product Certification Representative Authorization Letter Reason for Amendment (current / obsolete) Revision History Approved Date From To Initial Release (obsolete) 1.0 1.0 Nov-14-2006 Revised wording (obsolete) 1.0 2.0 Sept–25-2007 Updated company template (obsolete) 2.0 3.0 Jan-31-2012 Updated letter information (obsolete) 3.0 4.0 May-23-2014 Added FCC ID field (current) 4.0 5.0 Sept 16 2014 SCS-F18: Project and Product Certification Representative Authorization Letter Page 2 of 2 Rev 5.0 SHENZHEN SPRING TECHNOLOGY CO,.LIMITED 2015-08-19 To: SIEMIC, INC. 775 Montague Expressway, Milpitas, CA 95035 USA Dear Sir/Madam, Re: Product Certification Representative Authorization Letter We, _____ SHENZHEN SPRING TECHNOLOGY CO,.LIMITED _____hereby authorize SIEMIC, Inc. to act as a Certification Body for certifying for the following project(s): (FM Transmitter: FM23) FCC ID: 2AFMD-FM23 Sincerely, Client’s signature Client’s name / title Jack Yin/ General Manager Contact information / address 5/F Ablock,NO162 TongFuYu Industry Park KuKeng GuanLan LongHua New District, Shenzhen, China

SCS-F19: Confidentiality Request Letter Page 1 of 2 Rev 4.0 775 Montague Expressway Milpitas, CA 95035 Tel: 408-526-1188 Fax: 408-526-1088 Email: [email protected] Confidentiality Request Letter Reason for Amendment (current / obsolete) Revision History Approved Date From To Initial Release (obsolete) 1.0 1.0 Nov-14-2006 Adding CFR 2.459 (obsolete) 1.0 2.0 August – 11 - 2008 Updated company template & Added text box (obsolete) 2.0 3.0 Jan-31-2012 Added IC confidentiality letter form (current) 3.0 4.0 March-26-2015 SCS-F19: Confidentiality Request Letter Page 2 of 2 Rev 4.0 SHENZHEN SPRING TECHNOLOGY CO,.LIMITED 2015-08-19 To: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD Subject: Permanent Confidentiality Request for FCC ID: 2AFMD-FM23 We hereby request confidential treatment of information accompanying this application as outlined below: - Block Diagram - Schematics - Operational Description The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 & 0.459 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, Client’s signature Client’s name / title Jack Yin/ General Manager Contact information / address 5/F Ablock,NO162 TongFuYu Industry Park KuKeng GuanLan LongHua New District, Shenzhen, China

SHENZHEN SPRING TECHNOLOGY CO,.LIMITED 1) How does this device operate? Answer: Plug into IPod & Similar device and powered from Car Cigarette lighter.. 2) Provide information on the device and its antenna. Answer: The transmitter’s antenna is same cable as Power line from Car Cigarette, this is permanently attached antenna and meets the requirements of the section. 3) How is it installed? Answer: The EUT will direct plug into IPod unique connector. And power by DC12V or DC24V Car Power. 4) What test procedure was used? Answer: Operating condition is according to ANSI C63.10-2013 5) If tested in a car, how was it configured/tested? Answer: N/A 6) Was the tuning range properly verified? Answer: The test lab should indicate in the report that the tuning controls were manually adjusted to verify maximum tuning range. EUT was adjusted to work at the selected channels: 88.1 MHz, 98.1 MHz, and 107.9 MHz. The EUT will not allow operation below 88.1 MHz and will not allow operation above 107.9 MHz. 7) Was the bandwidth properly tested with maximum audio input? Answer: Emissions from the intentional radiator shall be confined within a band 200 kHz wide centered on the operation frequency. The 200 kHz band shall lie wholly within the frequency range of 88 – 108 MHz. Setup the EUT and simulators as shown in the report. Enable RF signal and confirm EUT active. Modulate output capacity of EUT up to specifications. 8) Provide the test report. Answer: Test Report Submitted. Client’s signature Client’s name / title Jack Yin/ General Manager Date: 2015-08-19 Contact information / address 5/F Ablock,NO162 TongFuYu Industry Park KuKeng GuanLan LongHua New District, Shenzhen, China

Report No.: TB-FCC145003 Page: 3 of 10 TB-RF-075-1.0 Appendix III EUT External Photographs Photo 1 Appearance of EUT Photo 2 Appearance of EUT Report No.: TB-FCC145003 Page: 4 of 10 TB-RF-075-1.0 Photo 3 Appearance of EUT Photo 4 Appearance of EUT Report No.: TB-FCC145003 Page: 5 of 10 TB-RF-075-1.0 Photo 5 Appearance of EUT

Report No.: TB-FCC145003 Page: 2 of 10 TB-RF-075-1.0 Appendix II ID Label Location ID LOCATION

Report No.: TB-FCC145003 Page: 1 of 10 TB-RF-074-1.0 Appendix IFCC ID Label FCC ID : 2AFMD-FM23 FM Transmitter SHENZHEN SPRING TECHNOLOGY CO,.LIMITED This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 1. This device may not cause harmful interference, and 2. This device must accept any interference received, including interference that may cause undesired operation. Model: FM23

Report No.: TB-FCC145003 Page: 6 of 10 TB-RF-075-1.0 Appendix IV EUT Internal Photographs Photo 6 Internal of EUT Photo 7 Appearance of PCB Report No.: TB-FCC145003 Page: 7 of 10 TB-RF-075-1.0 Photo 8 Appearance of PCB Photo 9 Appearance of PCB FM Antenna Report No.: TB-FCC145003 Page: 8 of 10 TB-RF-075-1.0 Photo 10 Internal of EUT Photo 11 Appearance of PCB Report No.: TB-FCC145003 Page: 9 of 10 TB-RF-075-1.0 Photo 12 Appearance of PCB

Shenzhen Toby Technology Co., Ltd. Report No.: TB-FCC145003 Page: 1 of 38 TB-RF-074-1.0 1A/F., Bldg.6, Yusheng Industrial Zone, The National Road No.107 Xixiang Section 467, Xixiang, Bao’an, Shenzhen, China Tel: +86 75526509301 Fax: +86 75526509195 FCC Radio Test Report FCC ID: 2AFMD-FM23 Original Grant Report No. : TB-FCC145003 Applicant : SHENZHEN SPRING TECHNOLOGY CO,.LIMITED Equipment Under Test (EUT) EUT Name : FM Transmitter Model No. : FM23 Brand Name : N/A Receipt Date : 2015-08-05 Test Date : 2015-08-05 to 2015-08-18 Issue Date : 2015-08-19 Standards : FCC Part 15, Subpart C (15.239:2014) Test Method : ANSI C63.10:2013 Conclusions : PASS In the configuration tested, the EUT complied with the standards specified above, The EUT technically complies with the FCC requirements Test/Witness Engineer : Approved& Authorized : This report details the results of the testing carried out on one sample. The results contained in this test report do not relate to other samples of the same product. The manufacturer should ensure that all products in series production are in conformity with the product sample detailed in the report. Report No.: TB-FCC145003 Page: 2 of 38 TB-RF-074-1.0 Contents CONTENTS ............................................................................................................................................. 2 1. GENERAL INFORMATION ABOUT EUT ............................................................................. 4 1.1 Client Information ................................................................................................................. 4 1.2 General Description of EUT (Equipment Under Test) ................................................... 4 1.3 Block Diagram Showing the Configuration of System Tested ...................................... 5 1.4 Description of Support Units .............................................................................................. 5 1.5 Description of Test Mode .................................................................................................... 5 1.6 Description of Test Software Setting ................................................................................ 6 1.7 Measurement Uncertainty .................................................................................................. 6 1.8 Test Facility ........................................................................................................................ 7 2. TEST SUMMARY ....................................................................................................................... 8 3. TEST EQUIPMENT .................................................................................................................... 9 4. CONDUCTED EMISSION TEST ........................................................................................... 10 4.1 Test Standard and Limit .................................................................................................... 10 4.2 Test Setup ........................................................................................................................... 10 4.3 Test Procedure ................................................................................................................... 10 4.4 Test Data ............................................................................................................................. 12 5. RADIATED EMISSION TEST ................................................................................................ 18 5.1 Test Standard and Limit .................................................................................................... 18 5.2 Test Setup ........................................................................................................................... 19 5.3 Test Procedure ................................................................................................................... 20 5.4 EUT Operating Condition ................................................................................................. 20 5.5 Test Data ............................................................................................................................. 21 6. FUNDAMENTAL AND BAND EDGE TEST ........................................................................ 27 6.1 Test Standard and Limit .................................................................................................... 27 6.2 Test Setup ........................................................................................................................... 27 6.3 Test Procedure ................................................................................................................... 28 6.4 EUT Operating Condition ................................................................................................. 28 6.5 Test Data ............................................................................................................................. 29 7. BANDWIDTH ............................................................................................................................ 35 7.1 Test Standard and Limit .................................................................................................... 35 7.2 Test Setup ........................................................................................................................... 35 7.3 Test Procedure ................................................................................................................... 35 7.4 EUT Operating Condition ................................................................................................. 35 7.5 Test Data ............................................................................................................................. 36 8. ANTENNA REQUIREMENT ................................................................................................... 38 8.1 Standard Requ…

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Report No.: TB-FCC145003 Page: 10 of 10 TB-RF-075-1.0 Appendix V EUT Test Photographs 15C Test Setup Photo of Setup for Radiated Emission Photo of Setup for Conducted Emission