Y4GDR5810-1Two Way Radio

Instruction Manual DR5500-1/5510-1/5600-1/5610-1/5800-1/5810-1 Two Way Radio Thank you for purchasing a COVALUE two‐way radio. This simple to use radio adopts the latest advances in technology, providing reliable communication in today’s demanding communication environment. Notice to the User: · Please read this instruction manual before operating this radio. · It’s prohibited to use the radio or charge it at any area with a potentially explosive atmosphere (where the air contains gas, dust and smog, etc.), as well as while taking on fuel, or while parking at a gasoline service station; or any area where radio communication is prohibited (such as a hospital or an airport.) · It’s prohibited to operate the radio without permission in areas where the government laws prohibit radio communication. · Please don't expose the radio to direct sunlight for a long time; Don't place the radio near any heating devices, either. · Please don't put the radio in extremely dusty, moist humid areas or unstable surfaces. · Only qualified personal, with proper tools and instruments are allowed to service and repair the radios, do not disassemble the radio by yourself to avoid damages. FCCWarning： Any Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. 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 . Note: 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. Warning: NOTICE: This radio is intended for use in occupational/controlled conditions where users have full knowledge of their exposure and can exercise control over their exposure to meet the occupational limits in FCC/ISEDC and International standards. This radio device is not authorized for general population consumer use. RF Exposure Requirements: To control your exposure and ensure compliance with the occupational/controlled environmental exposure limits, always adhere to the following procedures. Guidelines: Do not remove the RF Exposure Label from the device. User awareness instructions should accompany device when transferred to other users. Do not use this device if the operational requirements described herein are not met. Operating Instructions: Transmit no more than the rated duty factor of 50% of the time. To transmit (talk), push the Push-To-Talk (PTT) key. To receive calls, release the PTT key. Transmitting 50% of the time, or less, is important because the radio generates measurable RF energy only when transmitting (in terms of measuring for standards compliance). Keep the radio unit at least 2.5 cm away from the face. Keeping the radio at the proper distance is important as RF exposure decreases with distance from the antenna. The antenna should be kept away from the face and eyes. When worn on the body, always place the radio in a COVALUE approved holder, holster, case, or body harness or by use of the correct clip for this product. Use of non-approved accessories may result in exposure levels which exceed the FCC's occupational/controlled environmental RF exposure limits. Use of non-approved antennas, batteries, and accessories causes the radio to exceed the FCC RF exposure guidelines. ISEDC Warning The device has been tested and complies with SAR limits, users can obtain Canadian information on RF exposure and compliance. Après examen de ce matériel aux conformité aux limites DAS, et/ou aux limites d’intensité de champ RF, les utilisateurs peuvent sur l’exposition aux radiofréquences et la conformité and compliance d’acquérir les informations correspondantes. L'exposition aux champs rf de conformité et de contrôle d'orientations et instructions Respectez toujours les procédures suivantes pour contrôler votre exposition et vous assurer de la conformité avec les limites d'exposition professionnelle en milieu de travail / environnementales contrôlées. Des lignes directrices: Ne retirez pas l'étiquette d'exposition RF de l'appareil. Les instructions de sensibilisation des utilisateurs doivent accompagner l'appareil lors de son transfert à d'autres utilisateurs. N'utilisez pas cet appareil si les exigences opérationnelles décrites ici ne sont pas satisfaites.Mode d'emploi: Ne transmettez pas plus que le facteur de droit nominal de 50% du temps. Pour transmettre (parler), appuyez sur la touche Push-To-Talk (PTT). Pour recevoir des appels, relâchez la touche PTT. La transmission de 50% du temps, ou moins, est importante car la radio génère une énergie RF mesurable uniquement lors de la transmission (en termes de mesure pour la conformité aux normes). Maintenez l'unité radio à au moins 2,5 cm du visage.Le maintien de la radio à la distance appropriée est important car l'exposition aux radiofréquences diminue avec la distance d…

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SHENZHEN COVALUE COMMUNICATIONS CO., LTD. ADD: 2/F., Bldg. 24, XiLi Industrial Park, No.119 Xinguang Rd, Xili, Nanshan Shenzhen China TEL: +86-0755-86345789 FAX: +86-0755-86345790 Email: [email protected] Justification Letter Date: 2019-12-25 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: Y4GDR5810-1 Model number: DR5810-1, DR5610-1,DR5510-1,DR5800-1,DR5600-1,DR5500-1 Dear Sir/Madam, We, SHENZHEN COVALUE COMMUNICATIONS CO., LTD. , acknowledge that this device will not be marketed to USA users with the frequency band which is not allowed by rule part 90.and it is a violation of FCC rules if this device is operated on unauthorized frequencies inside the U.S.A. This equipment meets the requirements of the FCC Rules, Parts 90.203(e) and (g), as applicable. Programming of this products transmit frequencies can be performed ONLY by the manufacturer or by service or by maintenance personal. The operator can’t program transmit frequencies using the equipment’s external operation controls. This is to certify that the requirements of 47 CFR Part 90.203(j)(4) and (5) spectrum efficiency are met by the SHENZHEN COVALUE COMMUNICATIONS CO., LTD. as demonstrated by the tests conducted on the sample radio provided. The tests show that the 4FSK data rate is in accordance with ETSI TS 102 361-1, that is 9600 bits per second in a 12.5 kHz bandwidth to satisfy the data rate requirement of 4800 bits per second per 6.25 kHz of channel bandwidth (7K60F1D emissions). Additionally the Two Way Radio uses the AMBE+2 half-rate vocoder to compress 60 ms of normal bursts are sent in alternate 30 ms TDMA slots and so comply with the equivalence of one voice channel per 6.25 kHz bandwidth (7K60F1E emission). Additionally the radio also meets the requirement of one voice channel per 12.5 kHz of channel bandwidth for analogue speech (11k0F3E emission). Sincerely Yours, Signature: Chengtao Shu Engineer

QA-FR-170-B SHENZHEN COVALUE COMMUNICATIONS CO., LTD. ADD: 2/F., Bldg. 24, XiLi Industrial Park, No.119 Xinguang Rd, Xili, Nanshan Shenzhen China TEL: +86-0755-86345789 FAX: +86-0755-86345790 E-mail: [email protected] FCC Authorization Date: 2019-12-25 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern: We , SHENZHEN COVALUE COMMUNICATIONS CO., LTD., Hereby authorizes Bay Area Compliance Laboratories Corporation to act on its behalf in all matters relating to application for Equipment authorization, including the signing of all documents relating to these matters. All acts carried out by Bay Area Compliance Laboratory Corporation on our behalf shall have the same effect as our own action. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. This authorization is valid until further written notice from the applicant. Sincerely Yours, Client’s signature Chengtao Shu Engineer

QA-FR -171-A SHENZHEN COVALUE COMMUNICATIONS CO., LTD. Add: 2/F., Bldg. 24, XiLi Industrial Park, No.119 Xinguang Rd, Xili, Nanshan Shenzhen China Tel: +86-0755-86345789 Fax: +86-0755-86345790 Email: sc [email protected] FCC Conf idential Authorization Date:2019 -12-25 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID: Y4GDR5810-1 In accordance with Sections 0.457 and 0.459 of the Commission’s Rules, (SHENZHEN COVALUE COMMUNICATIONS CO., LTD. ) hereby requests long-term confidential treatment of information accompanying this application as outlined below:  Block Diagram  Schematics  Operation Description  Parts List/Tune up procedure Th e above materials contain proprietary and confidential information not customarily released to the public. The public disclosure of these materials provides unjustified benefits to its competitors in the market. Sincerely, Signature: Chengt ao Shu Engineer

model: DR5610-1,DR5510-1,DR5800-1,DR5600-1,DR5500-1 is electrically identical with SHENZHEN COVALUE COMMUNICATIONS CO., LTD. Add: 2/F., Bldg. 24, XiLi Industrial Park, No.119 Xinguang Rd, Xili, Nanshan, Shenzhen, China TEL: +86‐0755‐86345789 FAX: +86‐0755‐86345790 E‐mail: [email protected] DECLARATION OF SIMILARITY Date : 2019-12-25 To: Dear Sir or Madam: We , SHENZHEN COVALUE COMMUNICATIONS CO., LTD. , hereby declare that product: Two way radio, electromagnetic emissions and electromagnetic compatibility characteristics as model name: DR5810-1 that was tested by BACL, the results of which are featured in BACL project. A description of the differences between the tested model and those that are declared similar areas follows: Model LCD screen Keypad shell shape with the same material DR5810-1 DR5800-1 With With 6 models have different shell shape with the same material and the same mainboard DR5610-1 DR5600-1 With With DR5510-1 DR5500-1 Without Without FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 FCC ID:Y4GDR5810-1, the same DR5810‐1 DR5610‐1 DR5510‐1 DR5500‐1 DR5800‐1 DR5600‐1 Please contact me should there be need for any additional clarification or information. Best Regards, Chengtao Shu Engineer

SHENZHEN COVALUE COMMUNICATIONS CO., LTD. ADD: 2/F., Bldg. 24, XiLi Industrial Park, No.119 Xinguang Rd, Xili, Nanshan Shenzhen China TEL: +86-0755-86345789 FAX: +86-0755-86345790 Email: [email protected] Date:2019-12-25 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Extended Frequencies Justification for Certification of Transmitter with FCC ID: Y4GDR5810-1 Dear Sir/Madam, This transmitter was designed to operate in following frequency ranges: 136-174MHz To aid equipment authorization in other countries which accept the United States FCC Grant for Certification, SHENZHEN COVALUE COMMUNICATIONS CO., LTD. is requesting that the FCC lists the frequencies 136- 174MHz, under FCC Rule Parts 22 and 90 on the FCC Grant. SHENZHEN COVALUE COMMUNICATIONS CO., LTD. attests that the Two Way Radio will not be marketed to USA users with the frequency band which is not allowed by the rule Parts 22 and 90. Per the FCC’s KDB634817 guidance, as an alternative to listing the exact frequencies, we acknowledge that it’s a violation of the FCC Rules if this device operates on unauthorized frequencies. Frequency Range(MHz) FCC Rule Part 136-150.8 For Federal 150.8-152.855 FCC Part 22/ FCC Part 90 152.855-154 FCC Part 90 154-156.2475 FCC Part 90 157.1875-157.45 FCC Part 90 157.45-161.575 FCC Part 22/FCC Part 90 161.575-161.625 FCC Part 22 161.625-161.775 FCC Part 22 161.775-161.9625 FCC Part 90 162.0375-173.2 FCC Part 90 173.2-173.4 FCC Part 90 173.4-174 For Federal Also, equipment programming is the responsibility of Authorized Service Personnel, the Two Way Radio complies with 47 CFR Part 90.203(e), in that the operator cannot directly program the transmit frequencies using the normally accessible external controls. Please contact me if you require any additional information. Sincerely Yours, Signature: Chengtao Shu Engineer

EXHIBIT B - EUT EXTERNAL PHOTOGRAPHS Antenna1 Antenna2 EUT1_DR5810-1 \ EUT2_DR5610-1 EUT3_DR5510-1

31.60 mm 3 4 . 6 0 m m Y4GDR5810-1 IC:9415A-DR58101 MODEL:DR58001 136-174MHz- RF POWER RATING: 5W Shenzhen Covalue Communications Co.,LTD TwoWay Radio 31.60 mm 3 4 . 6 0 m m Y4GDR5810-1 IC:9415A-DR58101 MODEL:DR58101 136-174MHz- RF POWER RATING: 5W Shenzhen Covalue Communications Co.,LTD TwoWay Radio 31.60 mm 3 4 . 6 0 m m Y4GDR5810-1 IC:9415A-DR58101 MODEL:DR56001 136-174MHz- RF POWER RATING: 5W Shenzhen Covalue Communications Co.,LTD TwoWay Radio 31.60 mm 3 4 . 6 0 m m Y4GDR5810-1 IC:9415A-DR58101 MODEL:DR56101 136-174MHz- RF POWER RATING: 5W Shenzhen Covalue Communications Co.,LTD TwoWay Radio 31.60 mm 3 4 . 6 0 m m Y4GDR5810-1 IC:9415A-DR58101 MODEL:DR55001 136-174MHz- RF POWER RATING: 5W Shenzhen Covalue Communications Co.,LTD TwoWay Radio 31.60 mm 3 4 . 6 0 m m Y4GDR5810-1 IC:9415A-DR58101 MODEL:DR55101 136-174MHz- RF POWER RATING: 5W Shenzhen Covalue Communications Co.,LTD TwoWay Radio use to satisfy RF use to satisfy RF use to satisfy RF use to satisfy RF use to satisfy RF use to satisfy RF

EXHIBIT C - EUT INTERNAL PHOTOGRAPHS EUT1_DR5810-1 chip EUT2_DR5610-1 chip EUT3_DR5510-1 chip

SAR EVALUATION REPORT For SHENZHEN COVALUE COMMUNICATIONS CO.,LTD. 2/F., Bldg. 24, XiLi Industrial Park, No.119 Xinguang Rd, Xili, Nanshan Shenzhen China FCC ID: Y4GDR5810-1 Report Type: Original Report Product Type: Two Way Radio Report Number: RDG191211001-20A Report Date: 2020-01-16 Reviewed By: Rocky Xiao RF Engineer Prepared By: Bay Area Compliance Laboratories Corp. (Dongguan) No.69 Pulongcun, Puxinhu Industry Area, Tangxia, Dongguan, Guangdong, China Tel: +86-769-86858888 Fax: +86-769-86858891 www.baclcorp.com.cn Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RDG191211001-20A SAR Evaluation Report 2 of 39 Attestation of Test Results EUT Information EUT Description Two Way Radio Tested Model DR5810-1; DR5510-1; DR5610-1 Multiple Models DR5800-1;DR5600-1;DR5500-1 FCC ID Y4GDR5810-1 Serial Number RDG191211001-SA-S1(model: DR5810-1) RDG191211001-SA-S2(model:DR5510-1) RDG191211001-SA-S3(model: DR5610-1) Test Date 2019-08-10 Mode Test Model Max. SAR Level(s) Reported(W/kg) Limit PTT (136-174MHz) 1g Head SAR (Face Up) 1.18 8.0 (W/kg) 1g Body SAR (Body Back) 3.55 Applicable Standards FCC 47 CFR part 2.1093 Radiofrequency radiation exposure evaluation: portable devices IEEE1528:2013 IEEE Recommended Practice for Determining the Peak Spatial-Average Specific Absorption Rate (SAR) in the Human Head from Wireless Communications Devices: Measurement Techniques IEC 62209-2:2010 Human exposure to radio frequency fields from hand-held and body-mounted wireless communication devices-Human models, instrumentation, and procedures-Part 2: Procedure to determine the specific absorption rate (SAR) for wireless communication devices used in close proximity to the human body (frequency range of 30 MHz to 6 GHz) KDB procedures KDB 447498 D01 General RF Exposure Guidance v06 KDB 865664 D01 SAR Measurement 100 MHz to 6 GHz v01r04 KDB 865664 D02 RF Exposure Reporting v01r02 KDB 643646 D01 SAR Test for PTT Radios v01r03 Note: This wireless device has been shown to be capable of compliance for localized specific absorption rate (SAR) for Occupational/Controlled Exposure limits specified in FCC 47 CFR part 2.1093 and has been tested in accordance with the measurement procedures specified in IEEE 1528-2013 and RF exposure KDB procedures. The results and statements contained in this report pertain only to the device(s) evaluated. Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RDG191211001-20A SAR Evaluation Report 3 of 39 TABLE OF CONTENTS DOCUMENT REVISION HISTORY ......................................................................................................................... 4 EUT DESCRIPTION .................................................................................................................................................... 5 TECHNICAL SPECIFICATION ......................................................................................................................................... 5 REFERENCE, STANDARDS, AND GUIDELINES .................................................................................................. 6 SAR LIMITS ................................................................................................................................................................. 6 FACILITIES .................................................................................................................................................................. 7 DESCRIPTION OF TEST SYSTEM .......................................................................................................................... 8 EQUIPMENT LIST AND CALIBRATION ............................................................................................................. 13 EQUIPMENTS LIST & CALIBRATION INFORMATION .................................................................................................... 13 SAR MEASUREMENT SYSTEM VERIFICATION .............................................................................................. 14 LIQUID VERIFICATION ............................................................................................................................................... 14 SYSTEM ACCURACY VERIFICATION ........................................................................................................................... 16 SAR SYSTEM VALIDATION DATA ..................................................................................................................... 17 EUT TEST STRATEGY AND METHODOLOGY ................................................................................................. 19 TEST POSITIONS FOR DEVICE OPERATING NEXT TO A PERSON’S EAR........................................................................ 19 CHEEK/TOUCH POSITION ........................................................................................................................................... 20 EAR/TILT POSITION ................................................................................................................................................... 20 TEST POSITIONS FOR BODY-WORN AND OTHER CONFIGURATIONS .............................................................................. 21 TEST DISTANCE FOR SAR EVALUATION .................................................................................................................... 21 SAR EVALUATION PROCEDURE ................................................................................................................................. 22 CONDUCTED OUTPUT POWER MEASUREMENT ........................................................................................... 23 PROVISION APPLICABLE ............................................................................................................................................ 23 TEST PROCEDURE ........................................................................................................................................…

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PROBE CALIBRATION CERTIFICATES DIPOLE CALIBRATION CERTIFICATES

Report No.: RDG191211001-20A SAR Plots Plot 1# Test Plot 1#: Ant 1_FM_12.5kHz_136.0125 MHz_Face Up DUT: Two Way Radio; Type: DR5810-1; Serial: RDG191211001-SA-S1 Communication System: FM; Frequency: 136.012 MHz;Duty Cycle: 1:1 Medium parameters used: f = 136.012 MHz; σ = 0.764 S/m; ε r = 53.034; ρ = 1000 kg/m 3 Phantom section: Flat Section DASY5 Configuration:  Probe: ES3DV2 - SN3019; ConvF(7.67, 7.67, 7.67) @ 136.012 MHz; Calibrated: 2018/8/20  Sensor-Surface: 4mm (Mechanical Surface Detection)  Electronics: DAE3 Sn471; Calibrated: 2018/12/3  Phantom: ELI v8.0; Type: QDOVA004AA; Serial: 2051  Measurement SW: DASY52, Version 52.10 (2); SEMCAD X Version 14.6.12 (7470) Area Scan (71x151x1): Interpolated grid: dx=1.500 mm, dy=1.500 mm Maximum value of SAR (interpolated) = 0.0660 W/kg Zoom Scan (5x5x7)/Cube 0: Measurement grid: dx=8mm, dy=8mm, dz=5mm Reference Value = 9.059 V/m; Power Drift = -0.16 dB Peak SAR (extrapolated) = 0.0810 W/kg SAR(1 g) = 0.065 W/kg; SAR(10 g) = 0.052 W/kg Maximum value of SAR (measured) = 0.0673 W/kg 0 dB = 0.0673 W/kg = -11.72 dBW/kg Report No.: RDG191211001-20A SAR Plots Plot 2# Test Plot 2#: Ant 1_FM_12.5kHz_143.0125 MHz_Face Up DUT: Two Way Radio; Type: DR5810-1; Serial: RDG191211001-SA-S1 Communication System: FM; Frequency: 143.012 MHz;Duty Cycle: 1:1 Medium parameters used: f = 143.012 MHz; σ = 0.763 S/m; ε r = 52.077; ρ = 1000 kg/m 3 Phantom section: Flat Section DASY5 Configuration:  Probe: ES3DV2 - SN3019; ConvF(7.67, 7.67, 7.67) @ 143.012 MHz; Calibrated: 2018/8/20  Sensor-Surface: 4mm (Mechanical Surface Detection)  Electronics: DAE3 Sn471; Calibrated: 2018/12/3  Phantom: ELI v8.0; Type: QDOVA004AA; Serial: 2051  Measurement SW: DASY52, Version 52.10 (2); SEMCAD X Version 14.6.12 (7470) Area Scan (71x151x1): Interpolated grid: dx=1.500 mm, dy=1.500 mm Maximum value of SAR (interpolated) = 0.655 W/kg Zoom Scan (5x6x7)/Cube 0: Measurement grid: dx=8mm, dy=8mm, dz=5mm Reference Value = 28.52 V/m; Power Drift = -0.15 dB Peak SAR (extrapolated) = 0.802 W/kg SAR(1 g) = 0.630 W/kg; SAR(10 g) = 0.503 W/kg Maximum value of SAR (measured) = 0.655 W/kg 0 dB = 0.655 W/kg = -1.84 dBW/kg Report No.: RDG191211001-20A SAR Plots Plot 3# Test Plot 3#: Ant 1_FM_12.5kHz_149.9875 MHz_Face Up DUT: Two Way Radio; Type: DR5810-1; Serial: RDG191211001-SA-S1 Communication System: FM; Frequency: 149.988 MHz;Duty Cycle: 1:1 Medium parameters used: f = 149.988 MHz; σ = 0.769 S/m; ε r = 52.959; ρ = 1000 kg/m 3 Phantom section: Flat Section DASY5 Configuration:  Probe: ES3DV2 - SN3019; ConvF(7.67, 7.67, 7.67) @ 149.988 MHz; Calibrated: 2018/8/20  Sensor-Surface: 4mm (Mechanical Surface Detection)  Electronics: DAE3 Sn471; Calibrated: 2018/12/3  Phantom: ELI v8.0; Type: QDOVA004AA; Serial: 2051  Measurement SW: DASY52, Version 52.10 (2); SEMCAD X Version 14.6.12 (7470) Area Scan (71x151x1): Interpolated grid: dx=1.500 mm, dy=1.500 mm Maximum value of SAR (interpolated) = 1.29 W/kg Zoom Scan (5x6x7)/Cube 0: Measurement grid: dx=8mm, dy=8mm, dz=5mm Reference Value = 38.94 V/m; Power Drift = -0.00 dB Peak SAR (extrapolated) = 1.57 W/kg SAR(1 g) = 1.25 W/kg; SAR(10 g) = 0.994 W/kg Maximum value of SAR (measured) = 1.30 W/kg 0 dB = 1.30 W/kg = 1.14 dBW/kg Report No.: RDG191211001-20A SAR Plots Plot 4# Test Plot 4#: Ant 1_FM_12.5kHz_149.9875 MHz_Face Up DUT: Two Way Radio; Type: DR5510-1; Serial: RDG191211001-SA-S2 Communication System: FM; Frequency: 149.988 MHz;Duty Cycle: 1:1 Medium parameters used: f = 149.988 MHz; σ = 0.769 S/m; ε r = 52.959; ρ = 1000 kg/m 3 Phantom section: Flat Section DASY5 Configuration:  Probe: ES3DV2 - SN3019; ConvF(7.67, 7.67, 7.67) @ 149.988 MHz; Calibrated: 2018/8/20  Sensor-Surface: 4mm (Mechanical Surface Detection)  Electronics: DAE3 Sn471; Calibrated: 2018/12/3  Phantom: ELI v8.0; Type: QDOVA004AA; Serial: 2051  Measurement SW: DASY52, Version 52.10 (2); SEMCAD X Version 14.6.12 (7470) Area Scan (71x151x1): Interpolated grid: dx=1.500 mm, dy=1.500 mm Maximum value of SAR (interpolated) = 0.906 W/kg Zoom Scan (5x6x7)/Cube 0: Measurement grid: dx=8mm, dy=8mm, dz=5mm Reference Value = 33.10 V/m; Power Drift = -0.11 dB Peak SAR (extrapolated) = 1.10 W/kg SAR(1 g) = 0.858 W/kg; SAR(10 g) = 0.681 W/kg Maximum value of SAR (measured) = 0.891 W/kg 0 dB = 0.891 W/kg = -0.50 dBW/kg Report No.: RDG191211001-20A SAR Plots Plot 5# Test Plot 5#: Ant 1_FM_12.5kHz_149.9875 MHz_Face Up DUT: Two Way Radio; Type: DR5610-1; Serial: RDG191211001-SA-S3 Communication System: FM; Frequency: 149.988 MHz;Duty Cycle: 1:1 Medium parameters used: f = 149.988 MHz; σ = 0.769 S/m; ε r = 52.959; ρ = 1000 kg/m 3 Phantom section: Flat Section DASY5 Configuration:  Probe: ES3DV2 - SN3019; ConvF(7.67, 7.67, 7.67) @ 149.988 MHz; Calibrated: 2018/8/20  Sensor-Surface: 4mm (Mechanical Surface Detection)  Electronics: DAE3 Sn471; Calibrated: 2018/12/3  Phantom: ELI v8.0; Type: QDOVA004AA; Serial: 2051  Measurement SW: DASY52, Version 52.10 (2); SEMCAD X Version 14.6.12 (7470) Area Scan (71x151x1): Interpolated grid: dx=1.500 mm, dy=1.500 mm Maximum value of SAR (interpolated) = 1.02 W/kg Zoom Scan (5x6x7)/Cube 0: Measurement grid: dx=8mm, dy=8mm, dz=5mm Reference Value = 34.16 V/m; Power Drift = 0.01 dB Peak SAR (extrapolated) = 1.25 W/kg SAR(1 g) = 0.982 W/kg; SAR(10 g) = 0.780 W/kg Maximum value of SAR (measured) = 1.02 W/kg 0 dB = 1.02 W/kg = 0.09 dBW/kg Report No.: RDG191211001-20A SAR Plots Plot 6# Test Plot 6#: Ant 1_FM_25kHz_149.9875 MHz_Face Up DUT: Two Way Radio; Type: DR5810-1; Serial: RDG191211001-SA-S1 Communication System: FM; Frequency: 149.988 MHz;Duty Cycle: 1:1 Medium parameters used: f = 149.988 MHz; σ = 0.769 S/m; ε r = 52.959; ρ = 1000 kg/m 3 Phantom section: Flat Section DASY5 Configuration:  Probe: ES3DV2 - SN3019; ConvF(7.67, 7.67, 7.67) @ 149.988 MHz; Calibrated: 2018/8/20  Sensor-Surface: 4mm (Mechanical Surface Detection)  Electronics: DAE3 Sn471; Calibrated: 2018/12/3  Phantom: ELI v8.0; Type: QDOVA004AA; Serial: 2051  Measurement SW: DA…

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Report No.: RDG191211001-20A Page 1 of 2 APPENDIX B EUT TEST POSITION PHOTOS Liquid depth ≥ 15cm Report No.: RDG191211001-20A Page 2 of 2 The models DR5810-1, DR5510-1 and DR5610-1 have similar outline. Face Up Setup Photo(25mm) Body Back Setup Photo(0mm) 40mm 30mm 25mm

FCC PART 22, AND PART 90 TEST REPORT For SHENZHEN COVALUE COMMUNICATIONS CO.,LTD. 2/F., Bldg. 24, XiLi Industrial Park, No.119 Xinguang Rd, Xili, Nanshan Shenzhen China FCC ID: Y4GDR5810-1 Report Type: Original Report Product Type: Two Way Radio Re port Number: RDG191211001-00B Re port Date: 2020-01-16 Reviewed B y: Ivan Cao Assistant manager Test Laboratory: Bay Area Compliance Laboratories Corp. (Dongguan) No.69 Pulongcun, Puxinhu Industrial Zone, Tangxia, Dongguan, Guangdong, China Tel: +86-769-86858888 Fax: +86-769-86858891 www.baclcorp.com.cn Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: RDG191211001-00B Page 2 of 46 TABLE OF CONTENTS GENERAL INFORMATION ....................................................................................................................................... 4 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ..................................................................................... 4 OBJECTIVE ................................................................................................................................................................... 4 RELATED SUBMITTAL(S)/GRANT(S) ............................................................................................................................. 4 TEST METHODOLOGY .................................................................................................................................................. 4 MEASUREMENT UNCERTAINTY .................................................................................................................................... 5 TEST FACILITY ............................................................................................................................................................. 5 DECLARATIONS ............................................................................................................................................................ 5 SYSTEM TEST CONFIGURATION .......................................................................................................................... 6 DESCRIPTION OF TEST CONFIGURATION ...................................................................................................................... 6 EQUIPMENT MODIFICATIONS ....................................................................................................................................... 6 SUPPORT EQUIPMENT LIST AND DETAILS .................................................................................................................... 6 BLOCK DIAGRAM OF TEST SETUP ................................................................................................................................ 6 SUMMARY OF TEST RESULTS ............................................................................................................................... 7 TEST EQUIPMENT LIST ........................................................................................................................................... 8 FCC §1.1310 & §2.1093 - RF EXPOSURE .......…

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