U7G-FLEX-RSFR digital mobile radio, SFR repeater

Flex-repeater Flex-repeater Flex-repeater WARNING: MODIFICATION OF THIS DEVICE TO RECEIVE CELLULAR RADIOTELEPHONE SERVICE SIGNALS IS PROHIBIITED UNDER FCC RULES AND FEDERRAL LAW. Exposure To Radio Frequency Energy Your radio is designed to comply with the following national an d international standards and guidelines regarding exposure of human beings to radio frequency electromagnetic energy. ƒ United States Federal Communications Commission, Code of Federa l Regulations: 47 CFR part 2 sub-part J ƒ American National Standards Institute (ANSI)/Institute of Elect rical & Electronics Engineers (IEEE) C95. 1-1992 ƒ Institute of Electrical and Electronics Engineers (IEEE) C95. 1 -1999 Edition ƒ National Council on Radiation Protection and Measurements (NCRP ) of the United States, Report 86, 1986 ƒ International Commission on Non-lonizing Radiation Protection ( ICNIRP) 1998 ƒ To control your exposure and ensure compliance with the general popu- lation or uncontrolled environment exposure limits, transmit no more than 50% of the time. The radio generates measurable RF energy expos ure only when transmitting. ƒ The consumer must maintain a minimum safe separation distance o f 98 cm from the antenna when transmitting.

Klein Electronics, Inc. 349 N. Vinewood St, Escondido, CA 92029 United States Dec. 29, 2022 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Declaration of compliance to the requirements of §15.121 FCC ID: U7G-FLEX-R Dear Sir/Madam, We declare that, this scanning receiver is incapable of operating (tuning), or readily being altered by the users to operate, within the frequency bands allocated to the Cellular Radiotelephone Service in part 22 of this chapter (cellular telephone bands). This device will not be able to receive transmissions in the cellular telephone bands by means of clipping the leads of, or installing, a simple component such as a diode, resistor or jumper wire; replacing a plug-in semiconductor chip; or programming a semiconductor chip using special access codes or an external device, such as a personal computer. This device is also incapable of converting digital cellular communication transmissions to analog voice audio. This device is designed so that the tuning, control and filtering circuitry is inaccessible. Any attempts to modify the equipment to receive transmissions from the Cellular Radiotelephone Service will render the receiver inoperable. This scanning receiver rejects any signals from the Cellular Radiotelephone Service frequency bands that are 38 dB or lower based upon a 12 dB SINAD measurement. We are aware that the modification of this device to receive transmissions from Cellular Radiotelephone Service frequency bands will be considered to constitute manufacture of such equipment. This includes any individual, individuals, entity or organization that modifies one or more scanners. Any modification to receive transmissions from the Cellular Radiotelephone Service frequency bands voids the certification of the scanning receiver, regardless of the date of manufacture of the original unit. Sincerely Yours, Signature: ____________________ Name: Michael Lopez

Klein Electronics, Inc. Agent Authorization Company: Klein Electronics, Inc. Address: 349 N. Vinewood St, Escondido, CA 92029 United States Product Name: SFR digital mobile radio,SFR repeater Model Number(s): Flex-repeater Product Description: SFR digital mobile radio,SFR repeater We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: 2022-12-29 Name: Michael Lopez Company: Klein Electronics, Inc.

Klein Electronics, Inc. 349 N. Vinewood St, Escondido, CA 92029 United States ______________________________________________________________________________ Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2022-12-29 Subject; Request for Confidentiality FCC ID: U7G-FLEX-R To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Parts List Operational Description Tune-up Procedure In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely ________________________ Contact person: Michael Lopez

Report No.: AGC02415221001AP03 Page 1 of 7 EXTERNAL PHOTOS All VIEW OF EUT TOP VIEW OF EUT Report No.: AGC02415221001AP03 Page 2 of 7 BOTTOM VIEW OF EUT FRONT VIEW OF EUT Report No.: AGC02415221001AP03 Page 3 of 7 BACK VIEW OF EUT LEFT VIEW OF EUT Antenna Port Report No.: AGC02415221001AP03 Page 4 of 7 RIGHT VIEW OF EUT HAND MICROPHONE TOP VIEW OF EUT Report No.: AGC02415221001AP03 Page 5 of 7 BOTTOM VIEW OF EUT FRONT VIEW OF EUT Report No.: AGC02415221001AP03 Page 6 of 7 BACK VIEW OF EUT LEFT VIEW OF EUT Report No.: AGC02415221001AP03 Page 7 of 7 RIGHT VIEW OF EUT ****************************************End of Report****************************************

FCC ID Label Location 30mm&30mm

Report No.: AGC02415221001AP03 Page 1 of 10 INTERNAL PHOTOS OPEN VIEW OF EUT (FIGURE 1) OPEN VIEW OF EUT (FIGURE 2) Report No.: AGC02415221001AP03 Page 2 of 10 INTERNAL VIEW OF EUT (FIGURE 1) INTERNAL VIEW OF EUT (FIGURE 2) Report No.: AGC02415221001AP03 Page 3 of 10 INTERNAL VIEW OF EUT (FIGURE 3) INTERNAL VIEW OF EUT (FIGURE 4) Report No.: AGC02415221001AP03 Page 4 of 10 INTERNAL VIEW OF EUT (FIGURE 5) INTERNAL VIEW OF EUT (FIGURE 6) Report No.: AGC02415221001AP03 Page 5 of 10 INTERNAL VIEW OF EUT (FIGURE 7) INTERNAL VIEW OF EUT (FIGURE 8) Report No.: AGC02415221001AP03 Page 6 of 10 INTERNAL VIEW OF EUT (FIGURE 9) INTERNAL VIEW OF EUT (FIGURE 10) Report No.: AGC02415221001AP03 Page 7 of 10 INTERNAL VIEW OF EUT (FIGURE 11) INTERNAL VIEW OF EUT (FIGURE 12) Report No.: AGC02415221001AP03 Page 8 of 10 INTERNAL VIEW OF EUT (FIGURE 13) INTERNAL VIEW OF EUT (FIGURE 14) Report No.: AGC02415221001AP03 Page 9 of 10 HAND MICROPHONE OPEN VIEW OF EUT (FIGURE 1) OPEN VIEW OF EUT (FIGURE 2) Report No.: AGC02415221001AP03 Page 10 of 10 INTERNAL VIEW OF EUT (FIGURE 1) INTERNAL VIEW OF EUT (FIGURE 2) ****************************************End of Report****************************************

Page 1 of 25 FCC Test Report Report No.: AGC02415221001FE08 FCC ID : U7G-FLEX-R APPLICATION PURPOSE : Original Equipment PRODUCT DESIGNATION : SFR digital mobile radio,SFR repeater BRAND NAME : Blackbox MODEL NAME : Flex-repeater APPLICANT : Klein Electronics, Inc. DATE OF ISSUE : Dec. 13, 2022 STANDARD(S) : FCC Part 15 Rules REPORT VERSION : V 1.0 Attestation of Global Compliance (Shenzhen) Co., Ltd Report No.: AGC02415221001FE08 Page 2 of 25 REPORT REVISE RECORD Report Version Revise Time Issued Date Valid Version Notes V1.0 / Dec. 13, 2022 Valid Initial Release Report No.: AGC02415221001FE08 Page 3 of 25 TABLE OF CONTENTS 1. VERIFICATION OF COMPLIANCE ................................................................................................................. 4 2. PRODUCT INFORMATION .............................................................................................................................. 5 3. IDENTIFICATION OF THE RESPONSIBLE TESTING LOCATION ............................................................... 6 4. SUPPORT EQUIPMENT LIST ......................................................................................................................... 7 5. SYSTEM DESCRIPTION .................................................................................................................................. 7 6. MEASUREMENT UNCERTAINTY ................................................................................................................... 8 7. SUMMARY OF TEST RESULTS ..................................................................................................................... 8 8. FCC RADIATED EMISSION TEST .................................................................................................................. 9 8.1 PROVISIONS APPLICABLE ................................................................................................................... 9 8.2 TEST SETUP BLOCK DIAGRAM ........................................................................................................... 9 8.3 TEST PROCEDURE .............................................................................................................................. 11 8.4 TEST RESULT ....................................................................................................................................... 12 9. FCC CONDUCTED EMISSION TEST ............................................................................................................ 16 9.1 PROVISIONS APPLICABLE ................................................................................................................. 16 9.2 TEST SETUP BLOCK DIAGRAM ......................................................................................................... 16 9.4 TEST RESULT ................................................................................................................................... 18 10. ANTENNA CONDUCTED POWER FOR RECEIVERS ............................................................................... 20 10.1 PROVISIONS APPLICABLE ............................................................................................................... 20 10.2 TEST SETUP BLOCK DIAGRAM ....................................................................................................... 20 10.3 TEST PROCEDURE ............................................................................................................................ 20 10.4 TEST RESULT ..................................................................................................................................... 21 11. SCANNING RECEIVERS AND FREQUENCY CONVERTERS USED WITH SCANNING RECEIVERS .. 23 11.1 PROVISIONS APPLICABLE ............................................................................................................... 23 11.2 TEST SETUP BLOCK DIAGRAM ....................................................................................................... 23 11.3 TEST PROCEDURE ............................................................................................................................ 23 11.4 TEST RESULT ..................................................................................................................................... 24 APPENDIX I PHOTOGRAPHS OF TEST SETUP ............................................................................................. 25 APPENDIX II: PHOTOGRAPHS OF TEST EUT................................................................................................ 25 Report No.: AGC02415221001FE08 Page 4 of 25 1. VERIFICATION OF COMPLIANCE Applicant: Klein Electronics, Inc. Address: 349 N. Vinewood St, Escondido, CA 92029 United States Manufacturer: Klein Electronics, Inc. Address: 349 N. Vinewood St, Escondido, CA 92029 United States Factory: Klein Electronics, Inc. Address: 349 N. Vinewood St, Escondido, CA 92029 United States Product Designation: SFR digital mobile radio,SFR repeater Brand Name: Blackbox Test Model: Flex-repeater Measurement Procedure: ANSI C63.4: 2014 Deviation: No any deviation from the test method. Date of receipt of test item: Oct. 19, 2022 Date of Test: Oct. 19, 2022~Dec. 13, 2022 Condition of Test Sample: Normal Test Result: Pass Report Template； AGCRT-US-PTT/EMC The above equipment was tested by Attestation Of Global Compliance (Shenzhen) Co., Ltd. for compliance with the requirements set forth in the FCC Rules and Regulations Part 15, the measurement procedure according to ANSI C63.4:2014. This said equipment in the configuration described in this report shows the maximum emission levels emanating from equipment are within the compliance requirements. The test results of this report relate only to the tested sample identified in this report. Prepared By Bibo Zhang (Project Engineer) Dec. 13, 2022 Reviewed By Calvin Liu (Reviewer) Dec. 13, 2022 Approved By Max Zhang Authorized Officer Dec. 13, 2022 Report No.: AGC024…

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Report No.: AGC02415221001AP02 Page 1 of 2 TEST SETUP PHOTOS RADIATED EMISSION TEST SETUP BELOW 1GHz RADIATED EMISSION TEST SETUP ABOVE 1GHz Report No.: AGC02415221001AP02 Page 2 of 2 AC POWER LINE CONDUCTED TEST SETUP ****************************************End of Report*************************************