2AB7YVDWIFIRT2WiFi Module

Model Number: VDWIFI-RT2 Features • IEEE 802.11 b/g/n Compliant Transceiver • ARM KM4 32-bit CPU • Integrated 32Mbit serial flash • UART/GPIO interfaces to Host Controller • Integrated PCB trace antenna • Input voltage range: 4.0V to 21.0V (See variant table) • FCC certified RF/Analog • Frequency Range: 2.4GHz ISM radio band • Channels: 1-13 • Modulation: DSSS, OFDM for WLAN Package • Plug-in daughter card with onboard 10pin receptacle (standard) • Other connector and interface options available • Compact Module design Applications • Consumer Electronics • iOT • Industrial Controls • Remote Device Management • Fitness and Health Care • White Goods / Appliances • Gateways / Bridges • Home Automation Options • Apple HomeKit Support Onboard MFi co-processor Custom firmware to support specific HomeKit services & characteristics •Amazon Akexa Support •Google Home Support •Integration of custom application firmware Ordering P/N: PN HomeKit Input Power Input Connector Host Interface Connectivity VDWIFI-RT2 Y 4V - 21V 10 Pin UART Ayla Connector Pin-out (10-position receptacle): Pin No. Pin Name Description 1 VDC_Main VDC (4V – 21V) 2 GPIO_17 GPIO_17 3 GPIO_4 GPIO_4 4 GPIO_3 GPIO_3 5 Reserved Reserved 6 GPIO_2 GPIO_2 7 Reserved Reserved 8 UART_TXD Module UART Data Output 9 UART_RXD Module UART Data Input 10 GND GND Viper Design LLC 85 Cude Lane Madison, TN 37115 Phone: 615-420-6858 FCC ID and IC Number for this product is as follows FCC ID:2AB7YVDWIFIRT2 IC: 20699-VDWIFIRT2 Note Changes or modifications to this device not expressly approved by Viper Design LLC could void the user's authority to operate the equipment. Labels Host Device must contain the following label on the outside of the unit: Contains FCC ID: 2AB7YVDWIFIRT2 Contains IC: 20699-VDWIFIRT2 General Statements (1) PCB antenna with maximum gain is -3.21 dBi. Brand Model Name Antenna Type Connector Gain NOTE Viper VDWIFI-RT2 PCB N/A -3.21 dBi WLAN Antenna (2) Any change of antenna type is not allowed, WIFI module only use PCB antenna. FCC Statement Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. The modular can be installed or integrated in mobile or fix devices only. This modular cannot be installed in any portable device. FCC Radiation Exposure Statement This modular complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. This modular must be installed and operated with a minimum distance of 20 cm between the radiator and user body. If the FCC identification number is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module. This exterior label can use wording such as the following: “Contains Transmitter Module FCC ID: 2AB7YVDWIFIRT2 Or Contains FCC ID: 2AB7YVDWIFIRT2” When the module is installed inside another device, the user manual of the host must contain below warning statements; 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. (2) This device must accept any interference received, including interference that may cause undesired operation. The devices must be installed and used in strict accordance with the manufacturer's instructions as described in the user documentation that comes with the product. Any company of the host device which install this modular with Single modular approval should perform the test of radiated emissionand spurious emission according to FCC part 15C : 15.247 and 15.209 requirement,Only if the test result comply with FCC part 15C : 15.247 and 15.209 requirement,then the host can be sold legally. 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. IC Statement This device complies with Industry Canada’s licence-exempt RSSs. Operation is subject to the following two conditions: (1) This device may not cause interference; and (2) This device must accept any interference, including interference that may cause undesired operation of the device. Radiation Exposure Statement This modular complies with IC RF radiation exposure limits set forth for an uncontrolled environment. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. This modular must be installed and operated with a minimum distance of 20 cm between the radiator and user body. If the ISED identification number is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module. This exterior label can use wording such as the following: “Contains Transmitter Module IC: 20699-VDWIFIRT2 Or Contains …

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Viper Design, LLC Agent Authorization Company: Viper Design, LLC Address: 85 Cude Lane Madison Tennessee United States Product Name: WiFi Module Model Number(s): VDWIFI-RT2 Product Description: WiFi Module 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: 2022.08.25 Name: Jiankuai Li Title: PM Company: SHENZHEN STS TEST SERVICES CO.,LTD.

Viper Design, LLC FCC Modular Approval Request Rev 3.0 Federal Communications Commission Equipment Authorization Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: Subject; Modular Transmitter Application Company name: Viper Design, LLC FCC ID: 2AB7YVDWIFIRT2 Dear Sir/Madam, This letter includes the FCC application requirements for Modular Transmitter Approval Request for;- FCC KDB 996369 D01 ‘Module Certification Guide v02; and FCC KDB 996369 D03 OEM Manual v01 In accordance with 47CFR 15.212 Modular Transmitters and KDB 996369 D01 ‘Module Equip Auth Guide v02’. FCC ID 2AB7YVDWIFIRT2 has been examined against the following requirements. Requirement per 15.212 and KDB 996369 D01 Explanation from Grantee (do not write yes/no, but explain why product complies/how it is achieved) The radio elements must have the radio frequency circuitry shielded. Physical components and tuning capacitor(s) may be located external to the shield, but must be on the module assembly. Yes, with shielded The module must have buffered modulation/data inputs to ensure that the device will comply with Part 15 requirements with any type of input signal. Yes , All inputs to the modules are buffered through logic or microprocessor inputs. The module must contain power supply regulation on the module. Yes, A low drop out regulator is used for modular power supply regulation. The module must contain a permanently attached antenna, or contain a unique antenna connector, and be marketed and operated only with specific antenna(s), per §§ 15.203, 15.204(b), 15.204(c), 15.212(a), 2.929(b). Yes, Device is equipped with Integral antenna. The module must demonstrate compliance in a stand-alone configuration. Yes, distance between modular and all AEs are longer than 20cm ，refer to setup photo. The module must be labeled with its permanently affixed FCC ID label, or use an electronic display (see KDB Publication 784748). Yes ,The modular has a permanent fixed label, and below statement was listed in the User Manual; The host device must be labeled to display the FCCID of the module Contains FCC ID: 2AB7YVDWIFIRT2 The module must comply with all specific rules applicable to the transmitter, including all the conditions provided in the integration instructions by the grantee. Yes ,The module comply with all specific rules applicable to the transmitter including all the conditions provided in the integration instructions by the grantee, Refer to test report and user manual Viper Design, LLC FCC Modular Approval Request Rev 3.0 The module must comply with RF exposure requirements Yes , Transmitter meets MPE calculation of 47 CFR 1.1307 . Refer to MPE Reports and Refer to modular installation manual Integration Instructions for host product manufacturers The following items are submitted in support of application for Modular Transmitter FCC ID as noted above as required by the FCC KDB 996369 D03 OEM Manual v01. These items are provided as integration instructions for host product manufacturers (e.g., OEM instruction manual) to use when integrating a module in a host product. Any requirements that are not applicable to the Module are as indicated below. Summary of requirements and Checklist. Refer to the KDB for description of the complete requirements; KDB Ref Sect Requirements of KDB 996369 D03 User Manual Page Number reference 2.2 List of applicable FCC rules please refer to P4-11 2.3 Summarize the specific operational use conditions please refer to P4-11 2.4 Limited module procedures please refer to P4-11 2.5 Trace antenna designs please refer to P4-11 2.6 RF exposure considerations please refer to P4-11 2.7 Antennas please refer to P3 2.8 Label and compliance information please refer to P3 2.9 Information on test modes and additional testing requirements please refer to P4-11 2.10 Additional testing, Part 15 Subpart B disclaimer please refer to P4-11 Signature: Date: 2022.08.25 Name: Jiankuai Li Title: PM Company: SHENZHEN STS TEST SERVICES CO.,LTD.

Viper Design, LLC Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2022.08.25 Subject; Request for Confidentiality FCC ID: 2AB7YVDWIFIRT2 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 Operational Description 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. Signature: Date: 2022.08.25 Name: Jiankuai Li Title: PM Company: SHENZHEN STS TEST SERVICES CO.,LTD.

2022.07.05 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize SHENZHEN STS TEST SERVICES CO.,LTD./ A 1/F, Building B, Zhuoke Science Park, No.190 Chongqing Road, HepingShequ, Fuyong Sub-District,Bao’an District, Shenzhen, Guang Dong, China/Jiankuai Li(Name of Agent company name and address, Name of Agent) to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. Name: Jiankuai Li Title: PM E-mail:[email protected] This appointment is valid until further until December 31, 2023 Sincerely, Name: Brian Kendall Bell Title: Senior Design Partner E-mail: [email protected] Company: Viper Design, LLC

Page 1 of 1 Report No.: STS2207103 APPENDIX-PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS Model: VDWIFI-RT2 Photo 1 Photo 2 BLE/WIFI Antenna

FCC Label W:5mm L:10mm Note:The label is silk-screen on the sample WiFi Module Model: VDWIFI-RT2 FCC ID: 2AB7YVDWIFIRT2 IC: 20699-VDWIFIRT2

Page 1 of 1 Report No.: STS2207103 APPENDIX-PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS Model: VDWIFI-RT2 Photo 1 Photo 2

Any reproduction of this document must be done in full. No single part of this document may be reproduced without permission from STS, all test data presented in this report is only applicable to presented test sample. Shenzhen STS Test Services Co., Ltd. A 1/F, Building B, Zhuoke Science Park, No.190 Chongqing Road, HepingShequ, Fuyong Sub-District, Bao’an District, Shenzhen, Guang Dong, China TEL: +86-755 3688 6288 FAX: +86-755 3688 6277 E-mail:[email protected] RADIO TEST REPORT Report No: STS2207103H01 Issued for Viper Design, LLC 85 Cude Lane Madison Tennessee United States Product Name: WiFi Module Brand: Viper Model Number: VDWIFI-RT2 Series Model(s): N/A FCC ID: 2AB7YVDWIFIRT2 Test Standard: FCC 47CFR §2.1091 S T L A B S Page 2 of 9 Report No.: STS2207103H01 Test Report Certification Applicant’s Name ................. : Viper Design, LLC Address ................................. : 85 Cude Lane Madison Tennessee United States Manufacturer's Name .......... : Viper Design, LLC Address ................................. : 85 Cude Lane Madison Tennessee United States Product Description Product Name ........................ : WiFi Module Brand ................................... : Viper Model Number ....................... : ... : VDWIFI-RT2 Series Model(s) ...................... : N/A Standards ............................. : FCC 47CFR §2.1091 447498 D04 Interim General RF Exposure Guidance v01 This report shall not be reproduced except in full, without the written approval of STS, this document only be altered or revised by STS, personal only, and shall be noted in the revision of the document. Date of Test ............................................ : Date of receipt of test item ...................... : 25 July 2022 Date (s) of performance of tests ............. : 25 July 2022 ~ 02 Aug. 2022 Date of Issue ........................................... : 02 Aug. 2022 Test Result ............................................... : Pass Testing Engineer : (Chris Chen) Technical Manager : (Sean she) Authorized Signatory : (Bovey Yang) Page 3 of 9 Report No.: STS2207103H01 TABLE OF CONTENTS 1. GENERAL INFORMATION 5 1.1 GENERAL DESCRIPTION OF THE EUT 5 1.2 TEST FACTORY 5 2. FCC 47CFR §2.1091 REQUIREMENT 6 2.1 TEST STANDARDS 6 2.2 LIMIT 6 2.3 TEST RESULT 9 Page 4 of 9 Report No.: STS2207103H01 Revision History Rev. Issue Date Report No. Effect Page Contents 00 02 Aug. 2022 STS2207103H01 ALL Initial Issue Page 5 of 9 Report No.: STS2207103H01 1. GENERAL INFORMATION 1.1 GENERAL DESCRIPTION OF THE EUT Product Name WiFi Module Brand Viper Model Number VDWIFI-RT2 Series Model(s) N/A Model Difference N/A Product Description The EUT is WiFi Module Operation Frequency: BLE: 2402~2480 MHz 2.4G WLAN: 802.11b/g/n 20: 2412~2472 MHz Modulation Type: BLE: GFSK 2.4G WLAN: 802.11b(DSSS):CCK,DQPSK,DBPSK 802.11g(OFDM): BPSK,QPSK,16-QAM,64-QAM 802.11n(OFDM): BPSK,QPSK,16-QAM,64-QAM Antenna gain: -3.21dBi Antenna Designation: PCB Rating Input: DC 3.3V Hardware version number 1 Software version number 7.1d+patch210910 1.2 TEST FACTORY SHENZHEN STS TEST SERVICES CO., LTD Add. : A 1/F, Building B, Zhuoke Science Park, No.190 Chongqing Road, HepingShequ, Fuyong Sub-District, Bao’an District, Shenzhen, Guang Dong, China FCC test Firm Registration Number: 625569 IC test Firm Registration Number: 12108A A2LA Certificate No.: 4338.01 Page 6 of 9 Report No.: STS2207103H01 2. FCC 47CFR §2.1091 REQUIREMENT 2.1 TEST STANDARDS Follow the maximum permissible exposure (MPE) limits specified in 447498 D04 Interim General Radio Frequency Exposure Guidelines v01. The gain of the antenna used in the product was extracted from the supplied antenna data sheet and the maximum total power input to the antenna was also measured. Calculate the distance from the product to the MPE limit by the formula. 2.2 LIMIT For single RF sources (i.e., any single fixed RF source, mobile device, or portable device, as defined in paragraph (b)(2) of this section): A single RF source is exempt if: (A) The available maximum time-averaged power is no more than 1 mW, regardless of separation distance. This exemption may not be used in conjunction with other exemption criteria other than those in paragraph (b)(3)(ii)(A) of Part 1.1307. Medical implant devices may only use this exemption and that in paragraph (b)(3)(ii)(A); (B) Or the available maximum time-averaged power or effective radiated power (ERP), whichever is greater, is less than or equal to the threshold Pth (mW) described in the following formula. This method shall only be used at separation distances (cm) from 0.5 centimeters to 40 centimeters and at frequencies from 0.3 GHz to 6 GHz (inclusive). Pth is given by: Page 7 of 9 Report No.: STS2207103H01 (C) Or using below table and the minimum separation distance (R in meters) from the body of a nearby person for the frequency (f in MHz) at which the source operates, the ERP (watts) is no more than the calculated value prescribed for that frequency. For the exemption in Table 1 to apply, R must be at least λ/2π, where λ is the free-space operating wavelength in meters. If the ERP of a single RF source is not easily obtained, then the available maximum time-averaged power may be used in lieu of ERP if the physical dimensions of the radiating structure(s) do not exceed the electrical length of λ/4 or if the antenna gain is less than that of a half-wave dipole (1.64 linear value). RF Source frequency (MHz) Threshold ERP(watts) 0.3-1.34 1,920 R 2 . 1.34-30 3,450 R 2 /f 2 . 30-300 3.83 R 2 . 300-1,500 0.0128 R 2 f. 1,500-100,000 19.2R 2 . Page 8 of 9 Report No.: STS2207103H01 For multiple RF sources: Multiple RF sources are exempt if: (A) The available maximum time-averaged power of each source is no more than 1 mW and there is a separation distance of two centimeters between any portion of a radiating structure operating and the nearest portion of any other radiating structure in the same device, except if the sum of multiple sources is less than 1 mW …

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Antenna Test Lab Co. Summary www.AntennaTestLab.com Test Date 2022年10月21日 Tested By: Glenn Robb (919) 200-0292 [email protected] Sample Description See file name for model number and/or test configuration Axis Antenna Under Test Orientation Notes (See Coordinate Diagram Tab And Separate Setup Photos) +Z Axis is Theta= 0 & Phi=any -Z Axis is Theta= 180 & Phi=any Axis of feed line +X axis is Theta=90 & Phi=0 -X axis is Theta=90 & Phi=180 +Y axis is Theta=90 & Phi=90 -Y axis is Theta=90 & Phi=270 Other Coordinate Notes, 3-Axis Cuts in Spherical Coordinates ... XZ Cut (Turntable) is Theta=0-360 & Phi=0, or Theta=0-180 & Phi=0 then Theta=180-0 & Phi=180 YZ Cut is Theta=0-360 & Phi=90, or Theta=0-180 & Phi=90 then Theta=180-0 & Phi=270 XY Cut is Theta=90 & Phi=0-360 Notes And Observations Customers may download 3-Dimensional pattern visualization software (use on Theta-Ring.TXT file) from http://antennatestlab.com/antenna-education-tutorials/plotting Frequency (MHz) Integrated Spherical Total Isotropic Gain (dBi) Estimated Radiation Efficiency (%) 2300 -2.81 52.36 2301 -2.78 52.72 2302 -2.75 53.09 2303 -2.71 53.58 2304 -2.67 54.08 2305 -2.64 54.45 2306 -2.62 54.70 2307 -2.60 54.95 2308 -2.58 55.21 2309 -2.56 55.46 2310 -2.54 55.72 2311 -2.51 56.10 2312 -2.49 56.36 2313 -2.48 56.49 2314 -2.47 56.62 2315 -2.46 56.75 2316 -2.46 56.75 2317 -2.47 56.62 2318 -2.47 56.62 2319 -2.48 56.49 2320 -2.47 56.62 2321 -2.47 56.62 2322 -2.47 56.62 2323 -2.46 56.75 2324 -2.47 56.62 2325 -2.47 56.62 2326 -2.49 56.36 2327 -2.50 56.23 2328 -2.52 55.98 2329 -2.54 55.72 2330 -2.56 55.46 2331 -2.56 55.46 -15.00 -14.00 -13.00 -12.00 -11.00 -10.00 -9.00 -8.00 -7.00 -6.00 -5.00 -4.00 -3.00 -2.00 -1.00 0.00 23002325235023752400242524502475250025252550 dBi MHz Spherically Integrated Gain (or "Average Gain") in dBi 0.00 10.00 20.00 30.00 40.00 50.00 60.00 70.00 80.00 90.00 100.00 23002325235023752400242524502475250025252550 Percent MHz Radiation Efficiency in % 2332 -2.55 55.59 2333 -2.55 55.59 2334 -2.54 55.72 2335 -2.55 55.59 2336 -2.56 55.46 2337 -2.57 55.34 2338 -2.59 55.08 2339 -2.62 54.70 2340 -2.65 54.33 2341 -2.67 54.08 2342 -2.68 53.95 2343 -2.69 53.83 2344 -2.69 53.83 2345 -2.68 53.95 2346 -2.69 53.83 2347 -2.70 53.70 2348 -2.71 53.58 2349 -2.74 53.21 2350 -2.77 52.84 2351 -2.80 52.48 2352 -2.82 52.24 2353 -2.84 52.00 2354 -2.85 51.88 2355 -2.86 51.76 2356 -2.86 51.76 2357 -2.87 51.64 2358 -2.87 51.64 2359 -2.87 51.64 2360 -2.88 51.52 2361 -2.89 51.40 2362 -2.90 51.29 2363 -2.92 51.05 2364 -2.92 51.05 2365 -2.93 50.93 2366 -2.93 50.93 2367 -2.92 51.05 2368 -2.93 50.93 2369 -2.92 51.05 2370 -2.92 51.05 2371 -2.93 50.93 2372 -2.94 50.82 2373 -2.95 50.70 2374 -2.97 50.47 2375 -2.98 50.35 2376 -3.01 50.00 2377 -3.03 49.77 2378 -3.05 49.55 2379 -3.08 49.20 2380 -3.09 49.09 2381 -3.10 48.98 2382 -3.13 48.64 2383 -3.15 48.42 2384 -3.17 48.19 2385 -3.20 47.86 2386 -3.23 47.53 2387 -3.25 47.32 2388 -3.28 46.99 2389 -3.31 46.67 2390 -3.33 46.45 2391 -3.33 46.45 2392 -3.33 46.45 2393 -3.33 46.45 2394 -3.33 46.45 2395 -3.32 46.56 2396 -3.31 46.67 2397 -3.32 46.56 2398 -3.32 46.56 2399 -3.32 46.56 2400 -3.33 46.45 2401 -3.33 46.45 2402 -3.33 46.45 2403 -3.32 46.56 2404 -3.30 46.77 2405 -3.30 46.77 2406 -3.30 46.77 2407 -3.29 46.88 2408 -3.31 46.67 2409 -3.31 46.67 2410 -3.32 46.56 2411 -3.32 46.56 2412 -3.32 46.56 2413 -3.31 46.67 2414 -3.30 46.77 2415 -3.30 46.77 2416 -3.31 46.67 2417 -3.32 46.56 2418 -3.33 46.45 2419 -3.36 46.13 2420 -3.38 45.92 2421 -3.40 45.71 2422 -3.41 45.60 2423 -3.41 45.60 2424 -3.43 45.39 2425 -3.43 45.39 2426 -3.44 45.29 2427 -3.48 44.87 2428 -3.51 44.57 2429 -3.55 44.16 2430 -3.57 43.95 2431 -3.60 43.65 2432 -3.61 43.55 2433 -3.61 43.55 2434 -3.59 43.75 2435 -3.58 43.85 2436 -3.57 43.95 2437 -3.56 44.06 2438 -3.57 43.95 2439 -3.58 43.85 2440 -3.59 43.75 2441 -3.57 43.95 2442 -3.55 44.16 2443 -3.51 44.57 2444 -3.46 45.08 2445 -3.43 45.39 2446 -3.38 45.92 2447 -3.35 46.24 2448 -3.37 46.03 2449 -3.37 46.03 2450 -3.39 45.81 2451 -3.39 45.81 2452 -3.40 45.71 2453 -3.38 45.92 2454 -3.35 46.24 2455 -3.31 46.67 2456 -3.26 47.21 2457 -3.23 47.53 2458 -3.21 47.75 2459 -3.22 47.64 2460 -3.23 47.53 2461 -3.25 47.32 2462 -3.28 46.99 2463 -3.29 46.88 2464 -3.28 46.99 2465 -3.27 47.10 2466 -3.25 47.32 2467 -3.24 47.42 2468 -3.23 47.53 2469 -3.26 47.21 2470 -3.27 47.10 2471 -3.30 46.77 2472 -3.33 46.45 2473 -3.34 46.34 2474 -3.35 46.24 2475 -3.36 46.13 2476 -3.35 46.24 2477 -3.36 46.13 2478 -3.35 46.24 2479 -3.37 46.03 2480 -3.38 45.92 2481 -3.40 45.71 2482 -3.40 45.71 2483 -3.41 45.60 2484 -3.40 45.71 2485 -3.39 45.81 2486 -3.36 46.13 2487 -3.36 46.13 2488 -3.34 46.34 2489 -3.34 46.34 2490 -3.34 46.34 2491 -3.34 46.34 2492 -3.33 46.45 2493 -3.31 46.67 2494 -3.28 46.99 2495 -3.24 47.42 2496 -3.21 47.75 2497 -3.18 48.08 2498 -3.17 48.19 2499 -3.15 48.42 2500 -3.16 48.31 2501 -3.16 48.31 2502 -3.14 48.53 2503 -3.11 48.87 2504 -3.06 49.43 2505 -3.02 49.89 2506 -2.98 50.35 2507 -2.94 50.82 2508 -2.92 51.05 2509 -2.91 51.17 2510 -2.93 50.93 2511 -2.95 50.70 2512 -2.94 50.82 2513 -2.94 50.82 2514 -2.92 51.05 2515 -2.91 51.17 2516 -2.86 51.76 2517 -2.82 52.24 2518 -2.81 52.36 2519 -2.79 52.60 2520 -2.79 52.60 2521 -2.78 52.72 2522 -2.79 52.60 2523 -2.76 52.97 2524 -2.75 53.09 2525 -2.70 53.70 2526 -2.66 54.20 2527 -2.60 54.95 2528 -2.58 55.21 2529 -2.54 55.72 2530 -2.52 55.98 2531 -2.51 56.10 2532 -2.50 56.23 2533 -2.49 56.36 2534 -2.48 56.49 2535 -2.43 57.15 2536 -2.41 57.41 2537 -2.40 57.54 2538 -2.38 57.81 2539 -2.37 57.94 2540 -2.39 57.68 2541 -2.40 57.54 2542 -2.42 57.28 2543 -2.42 57.28 2544 -2.42 57.28 2545 -2.43 57.15 2546 -2.43 57.15 2547 -2.43 57.15 2548 -2.47 56.62 2549 -2.49 56.36 2550 -2.53 55.85

Any reproduction of this document must be done in full. No single part of this document may be reproduced without permission from STS, all test data presented in this report is only applicable to presented test sample. Shenzhen STS Test Services Co., Ltd. A 1/F, Building B, Zhuoke Science Park, No.190 Chongqing Road, HepingShequ, Fuyong Sub-District, Bao’an District, Shenzhen, Guang Dong, China TEL: +86-755 3688 6288 FAX: +86-755 3688 6277 E-mail:[email protected] RADIO TEST REPORT Report No.:STS2207103W01 Issued for Viper Design, LLC 85 Cude Lane Madison Tennessee United States Product Name: WiFi Module Brand: Viper Model Number: VDWIFI-RT2 Series Model(s): N/A FCC ID: 2AB7YVDWIFIRT2 Test Standard: FCC Part 15.247 S T L A B S Page 2 of 59 Report No.: STS2207103W01 TEST RESULT CERTIFICATION Applicant’s Name ..................: Viper Design, LLC Address ..................................: 85 Cude Lane Madison Tennessee United States Manufacturer's Name ...........: Viper Design, LLC Address ..................................: 85 Cude Lane Madison Tennessee United States Product Description Product Name .........................: WiFi Module Brand ....................................: Viper Model Number ........................:... : VDWIFI-RT2 Series Model(s) ......................: N/A Test Standards ......................: FCC Part15.247 Test Procedure .......................: ANSI C63.10-2013 This device described above has been tested by STS, the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. This report shall not be reproduced except in full, without the written approval of STS, this document may be altered or revised by STS, personal only, and shall be noted in the revision of the document. Date of Test ............................................ : Date of receipt of test item ...................... : 25 July 2022 Date (s) of performance of tests ............. : 25 July 2022 ~ 02 Aug. 2022 Date of Issue ........................................... : 02 Aug. 2022 Test Result ............................................... : Pass Testing Engineer : (Chris Chen) Technical Manager : (Sean she) Authorized Signatory : (Bovey Yang) Page 3 of 59 Report No.: STS2207103W01 Table of Contents 1. SUMMARY OF TEST RESULTS 6 1.1 TEST FACTORY 7 1.2 MEASUREMENT UNCERTAINTY 7 2. GENERAL INFORMATION 8 2.1 GENERAL DESCRIPTION OF THE EUT 8 2.2 DESCRIPTION OF THE TEST MODES 10 2.3 TEST SOFTWARE AND POWER LEVEL 10 2.4 BLOCK DIAGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 11 2.5 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS 12 2.6 EQUIPMENTS LIST 13 3. EMC EMISSION TEST 15 3.1 CONDUCTED EMISSION MEASUREMENT 15 3.2 TEST PROCEDURE 16 3.3 TEST SETUP 16 3.4 EUT OPERATING CONDITIONS 16 3.5 TEST RESULTS 17 4. RADIATED EMISSION MEASUREMENT 19 4.1 RADIATED EMISSION LIMITS 19 4.2 TEST PROCEDURE 21 4.3 TEST SETUP 22 4.4 EUT OPERATING CONDITIONS 22 4.5 FIELD STRENGTH CALCULATION 23 4.6 TEST RESULTS 24 5. CONDUCTED SPURIOUS & BAND EDGE EMISSION 31 5.1 LIMIT 31 5.2 TEST PROCEDURE 31 5.3 TEST SETUP 31 5.4 EUT OPERATION CONDITIONS 31 5.5 TEST RESULTS 31 6. POWER SPECTRAL DENSITY TEST 32 6.1 LIMIT 32 6.2 TEST PROCEDURE 32 6.3 TEST SETUP 32 Page 4 of 59 Report No.: STS2207103W01 Table of Contents 6.4 EUT OPERATION CONDITIONS 32 6.5 TEST RESULTS 32 7. BANDWIDTH TEST 33 7.1 LIMIT 33 7.2 TEST PROCEDURE 33 7.3 TEST SETUP 33 7.4 EUT OPERATION CONDITIONS 33 7.5 TEST RESULTS 33 8. PEAK OUTPUT POWER TEST 34 8.1 LIMIT 34 8.2 TEST PROCEDURE 34 8.3 TEST SETUP 35 8.4 EUT OPERATION CONDITIONS 35 8.5 TEST RESULTS 35 9. ANTENNA REQUIREMENT 36 9.1 STANDARD REQUIREMENT 36 9.2 EUT ANTENNA 36 APPENDIX 1-TEST DATA 37 1. DUTY CYCLE 37 2. MAXIMUM AVERAGE CONDUCTED OUTPUT POWER 40 3. MAXIMUM PEAK CONDUCTED OUTPUT POWER 43 4. -6DB BANDWIDTH 46 5. MAXIMUM POWER SPECTRAL DENSITY LEVEL 49 6. BAND EDGE 52 7. CONDUCTED RF SPURIOUS EMISSION 55 APPENDIX 2- EUT TEST PHOTO 59 Page 5 of 59 Report No.: STS2207103W01 Revision History Rev. Issue Date Report NO. Effect Page Contents 00 02 Aug. 2022 STS2207103W01 ALL Initial Issue Page 6 of 59 Report No.: STS2207103W01 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: KDB 558074 D01 15.247 Meas Guidance v05r02. FCC Part 15.247,Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission PASS -- 15.247 (a)(2) 6dB Bandwidth PASS -- 15.247 (b)(3) Output Power PASS -- 15.209 Radiated Spurious Emission P…

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