2AQVB-DN2458AVideo&Data transmission device

Viulinx Dual-band Quick Start www.taisync.com Contents 1. Package Contents ....................................................................................................... 1 2. Introduction ................................................................................................................ 2 2.1. Air Unit Ports ................................................................................................... 2 2.2. Air Unit LEDs & Button .................................................................................. 3 2.3. Ground Unit Ports ............................................................................................ 3 2.4. Ground Unit LEDs & Button ........................................................................... 4 2.5. Setting up Air Unit ........................................................................................... 5 2.6. Setting up Ground Unit .................................................................................... 5 3. Web-page Management .............................................................................................. 7 3.1. Manage Air Unit .............................................................................................. 7 3.2. Manage Ground Unit ..................................................................................... 11 1 1. Package Contents Air unit & Ground Unit Accessories Air antenna x 2 Ground antenna x 2 Power cable x2 Serial cable (Air Unit) x 2 Serial cable (Ground Unit) x 2 RC cable (Air Unit) x 2 RC cable (Ground Unit) x 2 RJ45 cable x 2 2 2. Introduction 2.1. Air Unit Ports ① RF port for antenna. ② RF port for antenna. ③ Ethernet video input from a camera, web-page management interface. Pinouts of the Ethernet port is R- R+ T- T+ seen from left to right in above figure. ④ Serial port for telemetry, ttl(voltage level 3.3V) or RS232. Pinouts of the serial port is Tx Rx GND seen from left to right in above figure. ⑤ Serial port for telemetry, ttl(voltage level 3.3V) or RS232. Pinouts of the serial port is Tx Rx GND seen from left to right in above figure. ⑥ S.Bus port connected to a flight controller. Pinouts of the S.Bus port is 5V GND S.BUS seen from left to right in above figure. ⑦ S.Bus port connected to a flight controller. Pinouts of the S.Bus port is 5V GND S.Bus seen from left to right in above figure. ⑧ Power input (DC12V ~ 26V). Pinouts of the power port is GND PWR seen from left to right in above figure. ⑨ PPM port connected to a flight controller. Pinouts of the PPM port is GND PPM seen from left to right in above figure. ⑩ Type-C USB port. 3 2.2. Air Unit LEDs & Button ① It’s off when radio link connected. ② It’s off when radio link connected. ③ Solid on in orange: 100Mbps Ethernet physical link connected. ④ Flickering in green: when there’s data transmission. ⑤ Bind button: press-and-hold till LED1&LED2 are flashing, it’s bound already before factory delivery. 2.3. Ground Unit Ports ① RF port for antenna. ② RF port for antenna. ③ Ethernet video output to PC, web-page management interface. Pinouts of the Ethernet port is R- R+ T- T+ seen from left to right in above figure. ④ Serial port for telemetry, ttl(voltage level 3.3V) or RS232. Pinouts of the serial port is Tx Rx 4 GND seen from left to right in above figure. ⑤ Serial port for telemetry, ttl(voltage level 3.3V) or RS232. Pinouts of the serial port is Tx Rx GND seen from left to right in above figure. ⑥ S.Bus port connected to a S.Bus receiver. Pinouts of the S.Bus port is 5V GND S.Bus seen from left to right in above figure. ⑦ S.Bus port connected to a S.Bus receiver. Pinouts of the S.Bus port is 5V GND S.Bus seen from left to right in above figure. ⑧ Power input (DC12V ~ 26V). Pinouts of the power port is GND PWR seen from left to right in above figure. ⑨ PPM port connected to a remote controller. Pinouts of the PPM port is GND PPM seen from left to right in above figure. ⑩ Type-C USB port. 2.4. Ground Unit LEDs & Button ① Solid on in green: Air-to-Ground link connected. ② Solid on in orange: Ground-to-Air link connected. ③ Solid on in orange: 100Mbps Ethernet physical link connected. ④ Flickering in green: when there’s data transmission. ⑤ Bind button: press-and-hold till LED1&LED2 are flashing, it’s bound already before factory delivery. 5 2.5. Setting up Air Unit 1. Connect antennas to RF ports of the air unit. 2. Connect camera to Ethernet port of the air unit. 3. Connect the PPM/S.bus port of the flight controller to the RC port of the air unit. 4. Connect the flight controller telemetry port to the serial port of the air unit. 5. Connect a 12V DC power to the power port of the air unit and turn on the power. 2.6. Setting up Ground Unit 6 1. Connect antennas to RF ports of the ground unit. 2. Connect the remote controller’s PPM/S.bus output to the RC port of the ground unit. 3. Connect the USB port of GCS/PC to the serial port of the ground unit with Serial-USB cable. 4. Connect Ethernet output port of ground unit to the GCS/PC. 5. Connect a 12V DC power to the power port of the ground unit. 7 3. Web-page Management ViulinxPro Dual-band has web-page management interface. Directly connect PC to air unit/ground unit by Ethernet cable, set PC IP address as 192.168.199.33/24, and visit 192.168.199.18 (air unit)/192.168.199.16 (ground unit) through web-page. 3.1. Manage Air Unit Status→Baseband status, there’s detailed real-time information like RSSI, SNR, Tx Power, LDPC stats, telemetry stats, etc. 8 Status→Device information, there’s information of SN and firmware version, etc. Config→Net settings, this is IP address of unit itself, it can be changed as per user’s request. 9 Config→Radio settings, there are options of auto/antenna1/antenna2 for air antenna select, and options of 2.4G/5.8G/2.4G&5.8G for band select, band select must keep the same as ground unit. Transmitting power can be set for 2.4G/5.8G independently as per user request. Config→Bind setting, bind process can be triggered b…

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Rev 1/26/2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 01-20-2025 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: 2AQVB-DN2458A Taisync Technology Inc certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: 2AQVB-DN2458A Taisync Technology Inc certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List (as a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment. Sincerely, Applicant Signature Applicant Name：Yan Li

Rev 9/6/2024 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 01-20-2025 Ref: Attestation Statements Part 2.911(d)(7) Filing Grantee Code: 2AQVB Taisync Technology Inc certifies that, as of the date of the filing of the application, we designate ourselves as the U.S. agent for service of process. Designated U.S. Agent Information: FRN: 0027760776 Name: Taisync Technology Inc Address: 2051 Junction Ave. Ste 115, San Jose, CA 95131, United States Contact Person: Yan Li Tel.: (408) 912-0094 Email: [email protected] Sincerely, Taisync Technology Inc Yan Li [Applicant signature]

Confidentiality Request Letter Federal Communications Commission Authorization and Evaluation Division FCC ID: 2AQVB-DN2458A Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: 1. Block Diagram 2. Schematics 3. Operational Description The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Rule 0.457, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, _________________ Name: Yan Li Title: CEO Date: 2025/1/20

Declaration of Authorization We Name: Taisync Technology Inc Address: 2051 Junction Ave. Ste 115, San Jose, CA 95131,United States Declare that: Name Representative of agent: Marlin Chen Agent Company name: MRT Technology (Suzhou) Co., Ltd Address: D8 Building, Youxin Industrial Park, No.2 Tian'edang Rd., Wuzhong Economic Development Zone City: Suzhou Country: China is authorized to apply for Certification of the following product(s): Product: Video&Data transmission device FCC ID: 2AQVB-DN2458A Model No.: DN2458A Sincerely, Name: Yan Li Title: CEO Date: 2025/1/20

Non-SDR (Software Defined Radio) Cover Letter Refer to KDB 442812 D01 SDR apps Guide v02r03. The following six questions can be used for determining if a radio can elect to be, or must be an SDR. 1. Can the RF parameters of the device be altered through software? Yes - go to 2. No, not an SDR Yes /No Reply: Yes 2. Can third parties not permitted by the Commission through specific filings modify, configure, or load different software, or make configuration settings to operate the device or host hardware radio frequency parameters (frequency range, modulation type, maximum output power or other radio parameters) in any other way than granted (or expected to be granted)? Yes, must be an SDR. No - go to 3. Yes /No Reply: No 3. Is the device capable of operating in any other in any other way than granted, or will be, granted? Yes, - go to 4. No - go to 5. Yes /No Reply: No 4. Is this a Part 15 client Device as defined in Section 15.202 (as opposed to a master device)? Yes, qualifies as a part 15 client devices - go to 5. No, must be an SDR. Yes /No 5. Does the manufacturer elect SDR? Yes, elects to be an SDR. No, Not an SDR Yes /No Reply: No Conclusion: According to the above questions reply, we can confirm this device (FCC ID: 2AQVB- DN2458A) must be a Non-SDR device. __________________ Name: Yan Li Position: CEO Date: 2025-01-22

Cover Letter Federal Communications Commission Authorization and Evaluation Division F F C C C C I I D D : : 2 2 A A Q Q V V B B - - D D N N 2 2 4 4 5 5 8 8 A A Please be notified that we, the undersigned, Taisync Technology Inc. declares that the product which bears the above FCC ID is also compliant with the FCC requirements for Supplier’s Declaration of Conformity(SDoC). And the SDoC procedure shall be carried out prior to marketing the device in the US. Sincerely, _________________ Name: Yan Li Title: CEO Date: 2025/1/20

Report No.: 2412TW0122-UE 1 of 4 External Photograph (1) EUT Photo (2) EUT Photo Report No.: 2412TW0122-UE 2 of 4 (3) EUT Photo (4) EUT Photo Report No.: 2412TW0122-UE 3 of 4 (5) EUT Photo (6) EUT Photo Report No.: 2412TW0122-UE 4 of 4 (7) Antenna Photo

Report No.: 2412TW0122-UI 1 of 5 Internal Photograph (1) EUT Photo (2) EUT Photo Report No.: 2412TW0122-UI 2 of 5 (3) EUT Photo (4) EUT Photo Report No.: 2412TW0122-UI 3 of 5 (5) EUT Photo (6) EUT Photo Report No.: 2412TW0122-UI 4 of 5 (7) EUT Photo (8) EUT Photo Report No.: 2412TW0122-UI 5 of 5 (9) EUT Photo (10) EUT Photo

MRT Technology (Taiwan) Co., Ltd Report No.: 2412TW0122-U3 Phone: +886-3-3288388 Report Version V1.0 Web: www.mrt-cert.com Issue Date: 2025-01-21 Page Number: 1 of 12 RF Exposure Evaluation Declaration FCC ID : 2AQVB-DN2458A Applicant : TAISYNC TECHNOLOGY INC. Application Type : Certification Product : Video&Data transmission device Model No. : DN2458A Brand Name : Viulinx FCC Classification : Digital Transmission System (DTS) Unlicensed National Information Infrastructure (NII) Received Date : December 30, 2024 Test By : ( Owen Tsai ) Reviewed By : ( Paddy Chen ) Approved By : ( Chenz Ker) The test results relate only to the samples tested. The test results shown in the test report are traceable to the national/international standards through the calibration of the equipment and evaluated measurement uncertainty herein. The test report shall not be reproduced except in full without the written approval of MRT Technology (Taiwan) Co., Ltd. Report No.: 2412TW0122-U3 Page Number: 2 of 12 Revision History Report No. Version Description Issue Date Note 2412TW0122-U3 1.0 Original Report 2025-01-21 Report No.: 2412TW0122-U3 Page Number: 3 of 12 CONTENTS Description Page 1. INTRODUCTION ................................................................................................................... 5 1.1. Scope ........................................................................................................................ 5 1.2. MRT Test Location .................................................................................................... 5 2. PRODUCT INFORMATION ................................................................................................... 6 2.1. Feature of Equipment under Test .............................................................................. 6 2.2. Description of Available Antennas .............................................................................. 6 2.3. Device Classification .................................................................................................. 7 2.4. Applied Standards ..................................................................................................... 7 3. RF Exposure Evaluation ..................................................................................................... 8 3.1. Limits ......................................................................................................................... 8 3.2. MPE Exemptions ....................................................................................................... 9 3.3. Test Result of RF Exposure Evaluation .....................................................................12 Report No.: 2412TW0122-U3 Page Number: 4 of 12 General Information Applicant Taisync Technology Inc. Applicant Address 2051 Junction Avenue,Suite 115,San Jose,CA 95131,USA Manufacturer Taisync Technology Inc. Manufacturer Address 2051 Junction Avenue,Suite 115,San Jose,CA 95131,USA Factory MIGHT ELECTRONIC CO., LTD Factory Address NO. 41-1, YUANSHAN, 2ND NEIGHBORHOOD, XINFENG TOWNSHIP, HSINCHU COUNTY 30441, TAIWAN(R.O.C.) Test Site MRT Technology (Taiwan) Co., Ltd Test Site Address No. 38, Fuxing Second Rd., Guishan Dist., Taoyuan City 333, Taiwan (R.O.C) MRT FCC Registration No. 291082 Test Device Serial No. N/A Production Pre-Production Engineering Test Facility / Accreditations 1. MRT facility is a FCC registered (Reg. No. 291082) test facility with the site description report on file and is designated by the FCC as an Accredited Test Firm. 2. MRT facility is an IC registered (MRT Reg. No. 21723) test laboratory with the site description on file at Industry Canada. 3. MRT Lab is accredited to ISO 17025 by the Taiwan Accreditation Foundation (TAF Cert. No. 3261) in EMC, Telecommunications and Radio testing for FCC (Designation Number: TW3261), Industry Canada, EU and TELEC Rules. Report No.: 2412TW0122-U3 Page Number: 5 of 12 1. INTRODUCTION 1.1. Scope Measurement and determination of electromagnetic emissions (EMC) of radio frequency devices including intentional and/or unintentional radiators for compliance with the technical rules and regulations of the Federal Communications Commission and the Innovation, Science and Economic Development Canada and Certification and Engineering Bureau. 1.2. MRT Test Location The map below shows the location of the MRT LABORATORY, its proximity to the Taoyuan City. These measurement tests were conducted at the MRT Technology (Taiwan) Co., Ltd. Facility located at No.38, Fuxing 2nd Rd., Guishan Dist., Taoyuan City 33377, Taiwan (R.O.C). Report No.: 2412TW0122-U3 Page Number: 6 of 12 2. PRODUCT INFORMATION 2.1. Feature of Equipment under Test 2.2. Description of Available Antennas No. Manufacturer Part No. Antenna Type Peak Gain 1 Be-Comfortable N12-7419-R0A Dipole 2.4G: 5.02dBi 5.8G: 5.06dBi Product Name: Video&Data transmission device Model No.: Viulinx Brand Name: DN2458A Specification SRD 2.4GHz & 5.8GHz Report No.: 2412TW0122-U3 Page Number: 7 of 12 2.3. Device Classification According to the user manual, this device is classified as a Mobile Device. So, the RF exposure evaluation requirements of § 2.1091 for mobile device exposure conditions subject to MPE limits. 2.4. Applied Standards According to the specifications of the manufacturer, the EUT must comply with the requirements of the following standards: FCC Part 2.1091 & KDB 447498 D04 Interim General RF Exposure Guidance v01 Report No.: 2412TW0122-U3 Page Number: 8 of 12 3. RF Exposure Evaluation 3.1. Limits According to FCC 1.1310: The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency (RF) radiation as specified in 1.1307(b) Limits For Maximum Permissible Exposure (MPE) Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm 2 ) Average Time (Minutes) (A) Limits for Occupational/ Control Exposures 0.3-3.0 614 1.63 *(100)…

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SPECIFICATION FOR APPROVAL CUSTOMER :yuanchuan PART NAME :WiFi dual frequency 5dbi antenna PART NO. : DZZ NO. :N12-7419-R0A REV. : 1.0 MANUFACTURERR SIGNATURE CUSTOMER SIGNATURE APPROVED BY: DATE: Shenzhen Be-comfortable Technology Co. Ltd. Shenzhen be-comfortable technology.co.,LTD Address：No.1606,Build C6,HengFeng industrial city,xixiang street,baoan district,Shenzhen shanghai mengju technology co., LTD 103B, Build10, No.198 Zhang Heng Road , Pudong New Area,Shanghai Antenna Design for WiFi dual frequency 5dbi antenna V1.0 Document NumberDZZ-20250207 1 st Released Date13/09/2023 AuthorHuiping Feng Review ByHuiping Feng Shenzhen be-comfortable Technology Co. Ltd. Antenna Assembly Specification(With housing) 1.Electrical Properties 1.1 Frequecy range................................2.4G~2.5G&5.1G~5.9G 1.2 Impedance............................................................50Ω Norminal 1.3 VSWR ............................................................... .....≤2 1.4 Return Loss ............................................................≤-10dBm 1.5 Radiation.................................................................Omni 1.6 peak Gain......................................................................5dBi 1.7 Polarization.............................................................Linear 1.8 Admitted Power......................................................1W 1.9 Cable.........................................................................NONE 2.Physical Properties 2.1 Working Temperature.........................................-30°C~+75°C 2.2 Storage Temperature...........................................-30°C~+75°C 1.Analyzer Measurement 1.1 S11 test results 2. 2D&3D 2.1 2.4G 2.2 5G 3. Passive Data FreqEffiGain (MHz)(%%)(dBi) 240076.224.81 241077.894.87 242078.524.92 243078.864.98 244078.914.99 245078.575.02 246078.245.01 247077.764.97 248077.584.92 249076.394.91 250076.254.83 510066.054.85 520066.824.89 530067.955.01 540069.855.05 550072.025.06 560070.425.01 570069.914.95 580066.274.93 590066.074.83 A 0～10 ±0.2 10～18 ±0.5 18～30 ±0.830～40 ±1.0 Remark Rev Date Third Angle New drawing Description 40～ ±2.0 Approved by Part No. Date Designed by Checked by Scale Rev mm Location Project Material PartName Unit dwg No. A Angle ±0.5° 1:1 Dual frequency DZZ-YC2458-V01 Remark Date Rev Description A Initial release 2023.9.11 B Screen printing changed to ZZ-YC2458-V01 2024.9.23 由 Autodesk 教育版产品制作 由 Autodesk 教育版产品制作 由 Autodesk 教育版产品制作 由 Autodesk 教育版产品制作 由 Autodesk 教育版产品制作 由 Autodesk 教育版产品制作 由 Autodesk 教育版产品制作 由 Autodesk 教育版产品制作

MRT Technology (Taiwan) Co., Ltd Report No.: 2412TW0122-U2 Phone: +886-3-3288388 R e p o r t Ve r s i o n : 1.0 Web: www.mrt-cert.com Issue Date: 2025-01-21 Page Number: 1 of 74 FCC ID : 2AQVB-DN2458A APPLICANT : Taisync Technology Inc. Application Type : Certification Product : Video&Data transmission device Model No. : DN2458A Brand Name : Viulinx FCC Classification : Unlicensed National Information Infrastructure (UNII) FCC Rule Part(s) : Part 15 Subpart E (Section 15.407) Test Procedure(s) : ANSI C63.10-2013 Received Date : December 30, 2024 Test Date : January 6, 2025~ January 10, 2025 MEASUREMENT REPORT Tested By : ( Kaunaz Lee ) Reviewed By : ( Paddy Chen ) Approved By : ( Chenz Ker) The test results only relate to the tested samples. This equipment has been shown to be capable of compliance with the applicable technical standards as indicated in the measurement report and was tested in accordance with the measurement procedures specified in ANSI C63.10 Test results reported herein relate only to the item(s) tested. The test report shall not be reproduced except in full without the written approval of MRT Technology (Taiwan) Co., Ltd. Report No.: 2412TW0122-U2 Page Number: 2 of 74 Revision History Report No. Version Description Issue Date Note 2412TW0122-U2 1.0 Original Report 2025-01-21 Report No.: 2412TW0122-U2 Page Number: 3 of 74 CONTENTS Description Page 1. INTRODUCTION ..................................................................................................................... 7 1.1. Scope ........................................................................................................................... 7 1.2. MRT Test Location ....................................................................................................... 7 2. PRODUCT INFORMATION ..................................................................................................... 8 2.1. Equipment Description.................................................................................................. 8 2.2. Product Specification Subjective to this Standard ......................................................... 9 2.3. Operation Frequencies and Channel List .....................................................................10 2.4. Test Mode ................................................................................................................... 11 2.5. Test Configuration .......................................................................................................12 2.6. Test System Details .....................................................................................................12 2.7. Test Software ...............................................................................................................12 2.8. Duty Cycles .................................................................................................................13 2.9. Test Configuration .......................................................................................................13 2.10. EMI Suppression Device(s)/Modifications ....................................................................13 2.11. Labeling Requirements ................................................................................................13 3. DESCRIPTION OF TEST .......................................................................................................14 3.1. Evaluation Procedure ..................................................................................................14 3.2. AC Line Conducted Emissions ....................................................................................14 3.3. Radiated Emissions .....................................................................................................15 4. ANTENNA REQUIREMENTS .................................................................................................16 5. TEST EQUIPMENT CALIBRATION DATE .............................................................................17 6. MEASUREMENT UNCERTAINTY ..........................................................................................18 7. TEST RESULT .......................................................................................................................19 7.1. Summary .....................................................................................................................19 7.2. 26dB Bandwidth Measurement ....................................................................................20 7.2.1. Test Limit .....................................................................................................................20 7.2.2. Test Procedure used ....................................................................................................20 7.2.3. Test Setting ..................................................................................................................20 7.2.4. Test Setup ...................................................................................................................20 7.2.5. Test Result ...................................................................................................................21 7.3. 6dB Bandwidth Measurement ......................................................................................23 7.3.1. Test Limit .....................................................................................................................23 Report No.: 2412TW0122-U2 Page Number: 4 of 74 7.3.2. Test Procedure used ....................................................................................................23 7.3.3. Test Setting ..................................................................................................................23 7.3.4. Test Setup ...................................................................................................................23 7.3.5. Test Result ..................................…

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Report No.: 2412TW0122-UT 1 of 3 RF Test Photograph Description: Front View of Conducted Emission Test Setup Description: Back View of Conducted Emission Test Setup Report No.: 2412TW0122-UT 2 of 3 Description: Radiated Emission Test Setup for below 1GHz Description: Radiated Emission Test Setup for above 1GHz Report No.: 2412TW0122-UT 3 of 3 Description: Radiated Emission Test Setup for 18GHz~40GHz Description: Conducted Emission Test Setup