M5X-MTM58Wireless Transmitter

Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 Date: 2021-05-21 To whom it may concern: We, the undersigned, hereby authorize Worldwide Testing Services (Taiwan) Co., Ltd to act on our behalf in all matters relating to applications for equipment authorization FCC ID: M5X-MTM58 including the signing of all documents related to these matters. Any and all acts carried out by Worldwide Testing Services (Taiwan) Co., Ltd on our behalf shall have the same effect as acts of our own. We also hereby certify that no party to this application is subject to a denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Sincerely, Name: Solomon Chang Title: President Company: MIPRO Electronics Co., Ltd.

Federal Communications Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 Date: 2021-05-17 Request for Long-Term Confidentiality Company name: MIPRO Electronics Co., Ltd. FCC ID: M5X-MTM58 FCC Part 15 Certification To whom it may concern: In accordance with §§ 0.457(d) and 0.459 of CFR 47, MIPRO Electronics Co., Ltd. hereby requests Long-Term confidentiality of all Block Diagrams, Schematics, Operational Description attachments for the subject application. These documents contain detailed system and equipment description and related information about the product which MIPRO Electronics Co., Ltd. considers to be proprietary, confidential and a custom design and otherwise would not release to the general public. Since the design is a basis from which future technological products will evolve, MIPRO Electronics Co., Ltd. considers that this information would be of benefit to its competitors and that the disclosure of the information in these documents would give competitors an unfair advantage in the market. Sincerely, Name: Solomon Chang Title: President Company: MIPRO Electronics Co., Ltd.

Registration number: W6M22104-20819-C-54 FCC ID: M5X-MTM58 External Photos Worldwide Testing Services(Taiwan) Co., Ltd. Appendix Page 1 of 18 Registration number: W6M22104-20819-C-54 FCC ID: M5X-MTM58 Worldwide Testing Services(Taiwan) Co., Ltd. Appendix Page 2 of 18 Registration number: W6M22104-20819-C-54 FCC ID: M5X-MTM58 Worldwide Testing Services(Taiwan) Co., Ltd. Appendix Page 3 of 18 Registration number: W6M22104-20819-C-54 FCC ID: M5X-MTM58 Worldwide Testing Services(Taiwan) Co., Ltd. Appendix Page 4 of 18 Registration number: W6M22104-20819-C-54 FCC ID: M5X-MTM58 Worldwide Testing Services(Taiwan) Co., Ltd. Appendix Page 5 of 18 Registration number: W6M22104-20819-C-54 FCC ID: M5X-MTM58 Worldwide Testing Services(Taiwan) Co., Ltd. Appendix Page 6 of 18

Registration number: W6M22104-20819-C-54 FCC ID: M5X-MTM58 Internal Photos Worldwide Testing Services(Taiwan) Co., Ltd. Appendix Page 7 of 18 Registration number: W6M22104-20819-C-54 FCC ID: M5X-MTM58 Worldwide Testing Services(Taiwan) Co., Ltd. Appendix Page 8 of 18 Registration number: W6M22104-20819-C-54 FCC ID: M5X-MTM58 Worldwide Testing Services(Taiwan) Co., Ltd. Appendix Page 9 of 18 Registration number: W6M22104-20819-C-54 FCC ID: M5X-MTM58 Worldwide Testing Services(Taiwan) Co., Ltd. Appendix Page 10 of 18 Registration number: W6M22104-20819-C-54 FCC ID: M5X-MTM58 Worldwide Testing Services(Taiwan) Co., Ltd. Appendix Page 11 of 18 Registration number: W6M22104-20819-C-54 FCC ID: M5X-MTM58 Worldwide Testing Services(Taiwan) Co., Ltd. Appendix Page 12 of 18 Registration number: W6M22104-20819-C-54 FCC ID: M5X-MTM58 Worldwide Testing Services(Taiwan) Co., Ltd. Appendix Page 13 of 18 Registration number: W6M22104-20819-C-54 FCC ID: M5X-MTM58 Worldwide Testing Services(Taiwan) Co., Ltd. Appendix Page 14 of 18 Registration number: W6M22104-20819-C-54 FCC ID: M5X-MTM58 Worldwide Testing Services(Taiwan) Co., Ltd. Appendix Page 15 of 18

Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 Applicant’s declaration concerning RF Radiation Exposure We hereby indicate that the product Product description: Wireless Transmitter Model No: MTM-58, MXX-5XXXXX (X=0~9,a~z,A~Z or Blank) The equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. The integral antennas used for this transmitter must not be co-located or operating in conjunction with any other antenna or transmitter within the host device. A safety statement concerning minimum separation distances from enclosure of the Product : Transmitter will be integrated in the user’s manual to provide end-users with transmitter operating conditions for satisfying RF exposure compliance. The appropriate information can be drawn from the test report no: W6M22104-20819-C-54 and the accompanying calculations. Company: MIPRO Electronics Co., Ltd. Address: 814, Beigang Rd., Chiayi City 600079, Taiwan Date: 2021-05-21 Registration number: W6M22104-20819-C-54 FCC ID: M5X-MTM58 3.6 Automatic Discontinuation of transmission, FCC 15.407 (c) The device shall automatically discontinue transmission in case of either absence of information to transmit or operational failure. This function will be declared by manufacturer. 3.7 Reserved, FCC 15.407 (d) 3.8 Indoor Operation Restriction, FCC 15.407 (e) Within the 5.15–5.25 GHz band, U- NII devices will be restricted to indoor operations to reduce any potential for harmful interference to co-channel MSS operations. This equipment has to be declared by manufacturer of the final product as content of the user manual. 3.9 Equivalent Isotropic Radiated Power (EIRP), FCC 15.407 (f) EIRP = max. conducted output power + antenna gain EIRP = 11.37 dBm + 0 dBi [antenna gain claimed by manufacturer] = 11.37 dBm = 13.7088 mW Test equipment used: ETSTW-RE 055 Worldwide Testing Services(Taiwan) Co., Ltd. Page 23 of 33 Registration number: W6M22104-20819-C-54 FCC ID: M5X-MTM58 3.10 Exemption Limits for Routine Evaluation according to 47 CFR FCC Part 2 Subpart J, section 2.1091 FCC OET Bulletin 65 Edition 97.01 determines the equations for predicting RF fields and applicable limits. The prediction for power density in the far-field but will over-predict power density in the near field, where it could be used for walking a “worst case” or conservative prediction. Systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy levels in excess limit for maximum permissible exposure. In accordance with 47 CFR FCC Part 2 Subpart J, section 2.1091 this device has been defined as a mobile device whereby a distance of 20 cm normally can be maintained between the user and the device. E ＝ Electric field (V/m) P ＝ output power (W) G ＝ EUT Antenna numeric gain (numeric) d ＝ Separation distance between radiator and human body (m) The formula can be changed to mW/m 2. Worldwide Testing Services(Taiwan) Co., Ltd. Page 24 of 33 Registration number: W6M22104-20819-C-54 FCC ID: M5X-MTM58 Established separation distance is 20 cm. Operating frequency band: 5735-5839 MHz The product meets RF exposure requirement. Because the power density of 0.0027 mW/cm 2 at 5839 MHz is below the power density limit of 1 mW/cm 2 . Limits: Limit for General Population / Uncontrolled Exposure Frequency (MHz) Power Density (mW/cm 2 ) 1500 – 100.000 1.0 Worldwide Testing Services(Taiwan) Co., Ltd. Page 25 of 33

Registration number: W6M22104-20819-C-54 FCC ID: M5X-MTM58 Set Up Photo of Radiated Emission Below 1 GHz Worldwide Testing Services(Taiwan) Co., Ltd. Appendix Page 16 of 18 Registration number: W6M22104-20819-C-54 FCC ID: M5X-MTM58 Above 1 GHz Worldwide Testing Services(Taiwan) Co., Ltd. Appendix Page 17 of 18 Registration number: W6M22104-20819-C-54 FCC ID: M5X-MTM58 Set Up Photo of Conducted Emission Worldwide Testing Services(Taiwan) Co., Ltd. Appendix Page 18 of 18