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  3. YL6-143VDB781B

YL6-143VDB781BAlarm.com Battery Video Doorbell

Alarm.com Incorporated

Application Details

Equipment Class
NII - Unlicensed National Information Infrastructure TX
Date of Grant
Mar 16, 2026
Application Purpose
Original Equipment
Equipment Note
Alarm.com Battery Video Doorbell
Frequency Range
5180.00000000 - 5240.00000000
Company
Alarm.com Incorporated
Country
United States

Documents & Files

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Attestation Statements

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Cover Letter(s)

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ID Label/Location Info

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RF Exposure Info

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Test Report

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Document Text

Text extracted from the exhibit documents filed with the FCC. Open a document above to read the original.

RF Exposure Info

Radio Exposure Evaluation Report Report No. : FA591207 TEL : 886-3-327-3456 Page Number : 1 of 12 FAX : 886-3-327-0973 Issued Date : Feb. 12, 2026 Report Template No.: HE1-A1 Ver5.0 Report Version : 01 FCC ID: YL6-143VDB781B Radio Exposure Evaluation Report FCC ID : YL6-143VDB781B Equipment : Alarm.com Battery Video Doorbell Brand Name : ALARM.COM Model Name : ADC-VDB781B Applicant : Alarm.com Incorporated 8281 Greensboro Drive, Suite 100, Tysons, VA 22102 United States Manufacturer : Alarm.com Incorporated 8281 Greensboro Drive, Suite 100, Tysons, VA 22102 United States Standard : 47 CFR FCC Part 2 Subpart J, section 2.1091 The product was received on Sep. 23, 2025, and testing was started from Nov. 17, 2025 and completed on Jan. 29, 2026. We, SPORTON INTERNATIONAL INC. Hsinhua Laboratory, would like to declare that the tested sample has been evaluated in accordance with the procedures given in 47 CFR FCC Part 2 Subpart J, section 2.1091 and shown compliance with the applicable technical standards. The test results in this report apply exclusively to the tested model / sample. Without written approval of SPORTON INTERNATIONAL INC. Hsinhua Laboratory, the test report shall not be reproduced except in full. ___________________________________________ Approved by: Jackson Tsai __________________________________________ SDoC by: XXXXX SPORTON INTERNATIONAL INC. Hsinhua Laboratory No.52, Huaya 1st Rd., Guishan Dist., Taoyuan City 333411, Taiwan (R.O.C.) Radio Exposure Evaluation Report Report No. : FA591207 TEL : 886-3-327-3456 Page Number : 2 of 12 FAX : 886-3-327-0973 Issued Date : Feb. 12, 2026 Report Template No.: HE1-A1 Ver5.0 Report Version : 01 FCC ID: YL6-143VDB781B Table of Contents HISTORY OF THIS TEST REPORT .................................................................................................................. 3 SUMMARY OF TEST RESULT ......................................................................................................................... 4 1 GENERAL DESCRIPTION .................................................................................................................... 5 1.1 Information .............................................................................................................................................. 5 1.2 Applicable Standards ............................................................................................................................. 7 1.3 Testing Location ..................................................................................................................................... 7 2 MAXIMUM PERMISSIBLE EXPOSURE ............................................................................................... 8 2.1 Limit of Maximum Permissible Exposure ............................................................................................... 8 2.2 RF Exposure Exempt Measurement ...................................................................................................... 9 2.3 Multiple RF Sources Exposure ............................................................................................................. 10 2.4 MPE Calculation Method ...................................................................................................................... 11 2.5 Calculated Result and Limit .................................................................................................................. 12 Photographs of EUT V01 Radio Exposure Evaluation Report Report No. : FA591207 TEL : 886-3-327-3456 Page Number : 3 of 12 FAX : 886-3-327-0973 Issued Date : Feb. 12, 2026 Report Template No.: HE1-A1 Ver5.0 Report Version : 01 FCC ID: YL6-143VDB781B History of this test report Report No. Version Description Issued Date FA591207 01 Initial issue of report Feb. 12, 2026 Radio Exposure Evaluation Report Report No. : FA591207 TEL : 886-3-327-3456 Page Number : 4 of 12 FAX : 886-3-327-0973 Issued Date : Feb. 12, 2026 Report Template No.: HE1-A1 Ver5.0 Report Version : 01 FCC ID: YL6-143VDB781B Summary of Test Result Report Clause Ref Std. Clause Test Items Result (PASS/FAIL) Remark 2 - Exposure evaluation PASS - Declaration of Conformity: The test results with all measurement uncertainty excluded are presented in accordance with the regulation limits or requirements declared by manufacturers. Comments and Explanations: None Reviewed by: Ben Tseng Report Producer: Amber Chiu Radio Exposure Evaluation Report Report No. : FA591207 TEL : 886-3-327-3456 Page Number : 5 of 12 FAX : 886-3-327-0973 Issued Date : Feb. 12, 2026 Report Template No.: HE1-A1 Ver5.0 Report Version : 01 FCC ID: YL6-143VDB781B 1 General Description 1.1 Information 1.1.1 EUT General Information RF General Information Evaluation Mode Frequency Range (MHz) Operating Frequency (MHz) Modulation Type 2.4GHz WLAN 2400-2483.5 2412-2462 802.11b: DSSS (DBPSK, DQPSK, CCK) 802.11g/n: OFDM (BPSK, QPSK, 16QAM, 64QAM) 5GHz WLAN 5150-5250 5250-5350 5470-5725 5725-5850 5180-5240 5260-5320 5500-5720 5745-5825 802.11a/n: OFDM (BPSK, QPSK, 16QAM, 64QAM) 802.11ac: OFDM (BPSK, QPSK, 16QAM, 64QAM, 256QAM, 1024QAM) Bluetooth 2400-2483.5 2402-2480 BR / EDR: FHSS (GFSK / π/4-DQPSK / 8DPSK) LE: DSSS (GFSK) Radio Exposure Evaluation Report Report No. : FA591207 TEL : 886-3-327-3456 Page Number : 6 of 12 FAX : 886-3-327-0973 Issued Date : Feb. 12, 2026 Report Template No.: HE1-A1 Ver5.0 Report Version : 01 FCC ID: YL6-143VDB781B 1.1.2 Antenna Information Ant. Port Brand Model Name Antenna Type Connector Support Source 1 1 LYNwave ALA25F-222AA6-00 PIFA I-Pex 2.4G+5G+BT 1 2 2 LYNwave ALA25F-222AA5-00 PIFA I-Pex 2.4G+5G+BT 3 1 INPAQ RFFPA391608IMLB403 PIFA I-Pex 2.4G+5G+BT 2 4 2 INPAQ RFFPA391610IMLB402 PIFA I-Pex 2.4G+5G+BT Ant. Port Gain (dBi) 2.4G 5G BT UNII-1 UNII-2A UNII-2C UNII-3 1 1 4.5 3.1 2.7 4.2 5.2 4.5 2 2 2.6 5 4.7 4.3 3.9 2.6 3 1 2.5 2.8 2.67 3 3 2.5 4 2 2.5 2.5 2.5 3 2.7 2.5 Note 1: The EUT has four antennas. For 2.4GHz function: For IEE…

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Test Report

LYNwave Technology 2025 www.lynwave.com 3F-6, No.327, Xuecheng Rd., Sanxia Dist., New Taipei City 237624, Taiwan www.lynwave.com +886 2 3501 8700 Copyright © 2021 Lynwave Technology Ltd. All rights reserved. Antenna Field Test Report Company: Alarm Project Name: V781B Model Name: Application: Video Doorbell Mounting Type: Wall Mount Date Owner Revision Remark 2024/11/26 Ken v0.1 1. Antenna passive measurement using Satimo Lab 2024/11/29 Ken v0.2 1. Rigid cable rework. Insertion loss measurement 2024/12/10 Ken v0.3 1. System level fine tune 2025/03/10 Ken v0.3 1. Antenna passive measurement using Satimo Lab 2025/07/08 Ken v0.3 1. Antenna passive measurement using Satimo Lab 2025/09/04 Ken v0.4 1. Antenna passive measurement using Satimo Lab 2025/09/18 Ken v0.5 1. Antenna 2 new sample 2025/09/30 Ken v0.5 1. Adjustment of test frequency points 2025/10/28 Ken v0.5 1. Change Ant.1 the color of the cable. 2025/12/05 Ken v0.5 1. Antenna passive measurement using Satimo Lab 3F-6, No.327, Xuecheng Rd., Sanxia Dist., New Taipei City 237624, Taiwan www.lynwave.com +886 2 3501 8700 Copyright © 2021 Lynwave Technology Ltd. All rights reserved. Table of Contents A. Antenna RF Characteristics 1. Customer Specification 2. Antenna Placement 3. S-Parameters 4. Coordinate Definition 5. Gain Table 6. Radiation Patterns 7. Summary 3F-6, No.327, Xuecheng Rd., Sanxia Dist., New Taipei City 237624, Taiwan www.lynwave.com +886 2 3501 8700 Copyright © 2021 Lynwave Technology Ltd. All rights reserved. Customer Specification Ant. No. Type Function Operating Freq. Radiation Pattern Cable Type Connector Type Ant.1 FPC Wi-Fi 2400-2500MHz 5150-5850MHz away from the back surface 1.13LL IPEX Ant.2 FPC Wi-Fi 2400-2500MHz 5150-5850MHz away from the back surface 1.13LL IPEX Specification Return Loss VSWR Isolation Peak Gain Efficiency 2.4GHz < -10dB TBD < -20dB 2.5dBi >65% 5GHz < -10dB TBD < -20dB 4.0dBi >75% 3F-6, No.327, Xuecheng Rd., Sanxia Dist., New Taipei City 237624, Taiwan www.lynwave.com +886 2 3501 8700 Copyright © 2021 Lynwave Technology Ltd. All rights reserved. Antenna Placement No. Function Material Dimension(mm) Frequency(MHz) Remark Ant.1 (ALA25F- 222AA6) Wi-Fi FPC 16x40 2400 – 2500 5150 – 5850 Thickness ≈ 0.14mm Ant.2 (ALA25F- 222AA5) Wi-Fi FPC 16x40 2400 – 2500 5150 – 5850 Thickness ≈ 0.14mm Photo provided separately (Figure 1) 3F-6, No.327, Xuecheng Rd., Sanxia Dist., New Taipei City 237624, Taiwan www.lynwave.com +886 2 3501 8700 Copyright © 2021 Lynwave Technology Ltd. All rights reserved. S-Parameters – Ant.1 & Ant.2 (Wi-Fi Dual band) Ant.1 to Ant.2 Ant.2 Ant.1 3F-6, No.327, Xuecheng Rd., Sanxia Dist., New Taipei City 237624, Taiwan www.lynwave.com +886 2 3501 8700 Copyright © 2021 Lynwave Technology Ltd. All rights reserved. Coordinate Definition Photo provided separately (Figure 2) 3F-6, No.327, Xuecheng Rd., Sanxia Dist., New Taipei City 237624, Taiwan www.lynwave.com +886 2 3501 8700 Copyright © 2021 Lynwave Technology Ltd. All rights reserved. Gain Table 2.4GHz Frequency(MHz) 2400 2450 2500 Ant.1 Peak Gain(dBi) 3.9 4.2 4.5 Efficiency(%) 66 70 71 Ant.2 Peak Gain(dBi) 2.2 2.4 2.6 Efficiency(%) 63 65 65 5GHz Frequency(MHz) 5170 5330 5490 5600 5730 5835 Ant.1 Peak Gain(dBi) 3.1 2.7 3.7 4.2 4.9 5.2 Efficiency(%) 61 60 71 72 69 69 Ant.2 Peak Gain(dBi) 5.0 4.7 4.3 3.9 3.8 3.9 Efficiency(%) 64 60 63 64 64 62 Isolation Table Isolation Worst mutual isolation (dB) 2.4GHz Band Worst mutual isolation (dB) 5GHz Band Antenna Ant.1 Ant.2 Ant.1 Ant.2 Ant.1 -21.5 -32.2 Ant.2 3F-6, No.327, Xuecheng Rd., Sanxia Dist., New Taipei City 237624, Taiwan www.lynwave.com +886 2 3501 8700 Copyright © 2021 Lynwave Technology Ltd. All rights reserved. 2D Radiation Pattern Ant.1 (Wi-Fi Dual-band) Frequency(MHz) : 2400-2500 Radiation Pattern : Azimuth Plane Theta = 90 Setup : Elevation Plane phi = 0 Elevation Plane phi = 90 Photo provided separately (Figure 3) 3F-6, No.327, Xuecheng Rd., Sanxia Dist., New Taipei City 237624, Taiwan www.lynwave.com +886 2 3501 8700 Copyright © 2021 Lynwave Technology Ltd. All rights reserved. 2D Radiation Pattern Ant.1 (Wi-Fi Dual-band) Frequency(MHz) : 5150-5850 Radiation Pattern : Azimuth Plane Theta = 90 Setup : Elevation Plane phi = 0 Elevation Plane phi = 90 Photo provided separately (Figure 4) 3F-6, No.327, Xuecheng Rd., Sanxia Dist., New Taipei City 237624, Taiwan www.lynwave.com +886 2 3501 8700 Copyright © 2021 Lynwave Technology Ltd. All rights reserved. 2D Radiation Pattern Ant.2 (Wi-Fi Dual-band) Frequency(MHz) : 2400-2500 Radiation Pattern : Azimuth Plane Theta = 90 Setup : Elevation Plane phi = 0 Elevation Plane phi = 90 Photo provided separately (Figure 5) 3F-6, No.327, Xuecheng Rd., Sanxia Dist., New Taipei City 237624, Taiwan www.lynwave.com +886 2 3501 8700 Copyright © 2021 Lynwave Technology Ltd. All rights reserved. 2D Radiation Pattern Ant.2 (Wi-Fi Dual-band) Frequency(MHz) : 5150-5850 Radiation Pattern : Azimuth Plane Theta = 90 Setup : Elevation Plane phi = 0 Elevation Plane phi = 90 Photo provided separately (Figure 6) 3F-6, No.327, Xuecheng Rd., Sanxia Dist., New Taipei City 237624, Taiwan www.lynwave.com +886 2 3501 8700 Copyright © 2021 Lynwave Technology Ltd. All rights reserved. 2D Radiation Pattern Ant.1 – Ant.2 Combine (Wi-Fi Dual band) Frequency(MHz) : 2450 Radiation Pattern : Azimuth Plane Elevation Plane phi = 0 Elevation Plane phi = 90 Setup : Photo provided separately (Figure 7) 3F-6, No.327, Xuecheng Rd., Sanxia Dist., New Taipei City 237624, Taiwan www.lynwave.com +886 2 3501 8700 Copyright © 2021 Lynwave Technology Ltd. All rights reserved. 2D Radiation Pattern Ant.1 – Ant.2 Combine (Wi-Fi Dual band) Frequency(MHz) : 5600 Radiation Pattern : Azimuth Plane Elevation Plane phi = 0 Elevation Plane phi = 90 Setup : Photo provided separately (Figure 8) 3F-6, No.327, Xuecheng Rd., Sanxia Dist., New Taipei City 237624, Taiwan www.lynwave.com +886 2 3501 8700 Copyright © 2021 Lynwave Technology Ltd. All rights reserved. Summary ⚫ The antenna meets customer requireme…

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Test Report

FCC DFS Test Report Report No. : FZ591207 TEL : 886-3-327-3456 Page Number : 1 of 24 FAX : 886-3-327-0973 Issued Date : Feb. 12, 2026 Report Template No.: HE1-D2 Ver3.2 Report Version : 01 FCC ID : YL6-143VDB781B FCC DFS Test Report FCC ID : YL6-143VDB781B Equipment : Alarm.com Battery Video Doorbell Brand Name : ALARM.COM Model Name : ADC-VDB781B Applicant : Alarm.com Incorporated 8281 Greensboro Drive, Suite 100, Tysons, VA 22102 United States Manufacturer : Alarm.com Incorporated 8281 Greensboro Drive, Suite 100, Tysons, VA 22102 United States Standard : 47 CFR FCC Part 15.407 The product was received on Sep. 23, 2025, and testing was started from Dec. 29, 2025 and completed on Dec. 29, 2025. We, SPORTON INTERNATIONAL INC. Hsinhua Laboratory, would like to declare that the tested sample has been evaluated in accordance with the procedures given in KDB 905462 D02 UNII DFS Compliance Procedures New Rules v02 and shown compliance with the applicable technical standards. The test results in this report apply exclusively to the tested model / sample. Without written approval of SPORTON INTERNATIONAL INC. Hsinhua Laboratory, the test report shall not be reproduced except in full. ___________________________________________ Approved by: Jackson Tsai __________________________________________ SDoC by: XXXXX SPORTON INTERNATIONAL INC. Hsinhua Laboratory No.52, Huaya 1st Rd., Guishan Dist., Taoyuan City 333411, Taiwan (R.O.C.) FCC DFS Test Report Report No. : FZ591207 TEL : 886-3-327-3456 Page Number : 2 of 24 FAX : 886-3-327-0973 Issued Date : Feb. 12, 2026 Report Template No.: HE1-D2 Ver3.2 Report Version : 01 FCC ID : YL6-143VDB781B Table of Contents HISTORY OF THIS TEST REPORT .................................................................................................................. 3 SUMMARY OF TEST RESULT ......................................................................................................................... 4 1 GENERAL DESCRIPTION .................................................................................................................... 5 1.1 Information .............................................................................................................................................. 5 1.2 Testing Applied Standards ..................................................................................................................... 8 1.3 Testing Location Information .................................................................................................................. 8 2 TEST CONFIGURATION OF EUT......................................................................................................... 9 2.1 Test Channel Frequencies Configuration ............................................................................................... 9 2.2 The Worst Case Measurement Configuration ........................................................................................ 9 2.3 Accessories ............................................................................................................................................ 9 2.4 Support Equipment ................................................................................................................................. 9 3 DYNAMIC FREQUENCY SELECTION (DFS) TEST RESULT ........................................................... 10 3.1 General DFS Information ..................................................................................................................... 10 3.2 Radar Test Waveform Calibration ........................................................................................................ 12 3.3 In-service Monitoring ............................................................................................................................ 18 4 TEST EQUIPMENT AND CALIBRATION DATA ................................................................................ 23 5 MEASUREMENT UNCERTAINTY ...................................................................................................... 24 Appendix A. Test Photos Photographs of EUT V01 FCC DFS Test Report Report No. : FZ591207 TEL : 886-3-327-3456 Page Number : 3 of 24 FAX : 886-3-327-0973 Issued Date : Feb. 12, 2026 Report Template No.: HE1-D2 Ver3.2 Report Version : 01 FCC ID : YL6-143VDB781B History of this test report Report No. Version Description Issued Date FZ591207 01 Initial issue of report Feb. 12, 2026 FCC DFS Test Report Report No. : FZ591207 TEL : 886-3-327-3456 Page Number : 4 of 24 FAX : 886-3-327-0973 Issued Date : Feb. 12, 2026 Report Template No.: HE1-D2 Ver3.2 Report Version : 01 FCC ID : YL6-143VDB781B Summary of Test Result Report Clause Ref. Std. Clause Test Items Result (PASS/FAIL) Remark 3.3 KDB 905462 7.8.3 DFS: In-Service Monitoring for Channel Move Time (CMT) PASS - 3.3 KDB 905462 7.8.3 DFS: In-Service Monitoring for Channel Closing Transmission Time (CCTT) PASS - 3.3 KDB 905462 7.8.3 DFS: In-Service Monitoring for Non-Occupancy Period (NOP) PASS - Note: Since the product is client without radar detection function, only Channel Move Time, Channel Closing Transmission Time and Non-Occupancy Period are required to perform. Declaration of Conformity: The test results with all measurement uncertainty excluded are presented in accordance with the regulation limits or requirements declared by manufacturers. Comments and explanations: None Reviewed by: Ben Tseng Report Producer: Amber Chiu FCC DFS Test Report Report No. : FZ591207 TEL : 886-3-327-3456 Page Number : 5 of 24 FAX : 886-3-327-0973 Issued Date : Feb. 12, 2026 Report Template No.: HE1-D2 Ver3.2 Report Version : 01 FCC ID : YL6-143VDB781B 1 General Description 1.1 Information 1.1.1 RF General Information Specification Items Description Product Type WLAN (1TX, 1RX) Radio Type Intentional Transceiver Power Type From Adapter / Battery Modulation IEEE 802.11a: OFDM (BPSK / QPSK / 16QAM / 64QAM) IEEE 802.11n/ac: see the be…

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Test Report

FCC Radio Test Report Report No. : FR591207AN TEL : 886-3-3273456 Page Number : 1 of 25 FAX : 886-3-3270973 Issued Date : Feb. 12, 2026 Report Template No.: HE1-D1 Ver4.6 Report Version : 01 FCC ID: YL6-143VDB781B FCC Radio Test Report FCC ID : YL6-143VDB781B Equipment : Alarm.com Battery Video Doorbell Brand Name : ALARM.COM Model Name : ADC-VDB781B Applicant : Alarm.com Incorporated 8281 Greensboro Drive, Suite 100, Tysons, VA 22102 United States Manufacturer : Alarm.com Incorporated 8281 Greensboro Drive, Suite 100, Tysons, VA 22102 United States Standard : 47 CFR FCC Part 15.407 The product was received on Sep. 23, 2025, and testing was started from Nov. 17, 2025 and completed on Feb. 07, 2026. We, SPORTON INTERNATIONAL INC. Hsinhua Laboratory, would like to declare that the tested sample has been evaluated in accordance with the procedures given in ANSI C63.10-2020 + Cor.1-2023 + C63.10a-2024 + Errata to C63.10a-2024 and shown compliance with the applicable technical standards. The test results in this report apply exclusively to the tested model / sample. Without written approval of SPORTON INTERNATIONAL INC. Hsinhua Laboratory, the test report shall not be reproduced except in full. ___________________________________________ Approved by: Jackson Tsai __________________________________________ SDoC by: XXXXX SPORTON INTERNATIONAL INC. Hsinhua Laboratory No.52, Huaya 1st Rd., Guishan Dist., Taoyuan City 333411, Taiwan (R.O.C.) FCC Radio Test Report Report No. : FR591207AN TEL : 886-3-3273456 Page Number : 2 of 25 FAX : 886-3-3270973 Issued Date : Feb. 12, 2026 Report Template No.: HE1-D1 Ver4.6 Report Version : 01 FCC ID: YL6-143VDB781B Table of Contents HISTORY OF THIS TEST REPORT .................................................................................................................. 3 SUMMARY OF TEST RESULT ......................................................................................................................... 4 1 GENERAL DESCRIPTION .................................................................................................................... 5 1.1 Information .............................................................................................................................................. 5 1.2 Testing Applied Standards ..................................................................................................................... 8 1.3 Testing Location Information .................................................................................................................. 8 1.4 Measurement Uncertainty ...................................................................................................................... 8 2 TEST CONFIGURATION OF EUT......................................................................................................... 9 2.1 Test Channel Mode ................................................................................................................................ 9 2.2 The Worst Case Measurement Configuration ...................................................................................... 10 2.3 Accessories .......................................................................................................................................... 11 2.4 Support Equipment ............................................................................................................................... 11 2.5 Test Setup Diagram ............................................................................................................................. 12 3 TRANSMITTER TEST RESULT .......................................................................................................... 13 3.1 AC Power-line Conducted Emissions .................................................................................................. 13 3.2 Emission Bandwidth ............................................................................................................................. 15 3.3 Maximum Conducted Output Power .................................................................................................... 16 3.4 Peak Power Spectral Density ............................................................................................................... 18 3.5 Unwanted Emissions ............................................................................................................................ 20 4 TEST EQUIPMENT AND CALIBRATION DATA ................................................................................ 24 APPENDIX A. TEST RESULTS OF AC POWER-LINE CONDUCTED EMISSIONS APPENDIX B. TEST RESULTS OF EMISSION BANDWIDTH APPENDIX C. TEST RESULTS OF MAXIMUM CONDUCTED OUTPUT POWER APPENDIX D. TEST RESULTS OF PEAK POWER SPECTRAL DENSITY APPENDIX E. TEST RESULTS OF UNWANTED EMISSIONS APPENDIX F. TEST PHOTOS PHOTOGRAPHS OF EUT V01 FCC Radio Test Report Report No. : FR591207AN TEL : 886-3-3273456 Page Number : 3 of 25 FAX : 886-3-3270973 Issued Date : Feb. 12, 2026 Report Template No.: HE1-D1 Ver4.6 Report Version : 01 FCC ID: YL6-143VDB781B History of this test report Report No. Version Description Issued Date FR591207AN 01 Initial issue of report Feb. 12, 2026 FCC Radio Test Report Report No. : FR591207AN TEL : 886-3-3273456 Page Number : 4 of 25 FAX : 886-3-3270973 Issued Date : Feb. 12, 2026 Report Template No.: HE1-D1 Ver4.6 Report Version : 01 FCC ID: YL6-143VDB781B Summary of Test Result Report Clause Ref. Std. Clause Test Items Result (PASS/FAIL) Remark 1.1.2 15.203 Antenna Requirement PASS - 3.1 15.207 AC Power-line Conducted Emissions PASS - 3.2 15.407(a) Emission Bandwidth PASS - 3.3 15.407(a) Maximum Conducted Output Power PASS - 3.4 15.407(a) Peak Power Spectral Density PASS - 3.5 15.407(b) Unwanted Emissions PASS - Declaration of Conformity: The test results with all measurement uncertainty excluded are presented in accordance with the regulation limits or requirements decla…

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Test Report

1 Copyright © by Passive System Alliance | All rights reserved. 2 Copyright © by Passive System Alliance | All rights reserved. Company: Project Name: Model Name: Application: Mounting Type: Presented by 2025/ 12/ 17 Copyright © by Passive System Alliance | All rights reserved. 3 Alarm V781B Video Doorbell Wall Mount 4 5 Table of Contents A.Antenna RF Characteristics 1.Customer Specification 2.S-Parameters 3.Coordinate Definition 4.Gain Table 5.Isolation Table 6.Radiation Patterns 7.Summary Customer Specification 6 Ant. No. Type Function Operating Freq. Radiation Patter Cable Type Connector Type Ant.1 (RFFPA391608IMLB403) FPC Wi-Fi 2400-2500MHz 5150-5850MHz away from the back surface 1.13LL IPEX Ant.2 (RFFPA391610IMLB402) FPC Wi-Fi 2400-2500MHz 5150-5850MHz away from the back surface 1.13LL IPEX Specificati on Return Loss VSWR Isolation Peak Gain Efficiency 2.4GHz < -10dB TBD < -20dB 2.5dBi >65% 5GHz < -10dB TBD < -20dB 4.0dBi >75% Antenna Placement 7 No. Function Material Dimension(mm) Frequency(MHz) Remark Ant.1 ( RFFPA391608IM LB403 ) Wi-Fi FPC 16x40 2400 – 2500 5150 – 5850 Thickness ≈ 0.14mm Ant.2 (RFFPA391610IML B402) Wi-Fi FPC 16x40 2400 – 2500 5150 – 5850 Thickness ≈ 0.14mm Photo provided separately (Figure 1) S-Parameters – Ant.1&Ant.2 (Wi-Fi Dual band) 8 Ant. 1 to Ant. 2 Ant.1 Ant.2 Gain Table 11 2.4GHz Frequency(MHz) 2400 2450 2500 Ant.1 (RFFPA391608 IMLB403) Peak Gain(dBi) 1.8 2.4 2.1 Efficiency(%) 63 70 69 Efficiency(%)+ insertion loss 65 72 71 Ant.2 (RFFPA391610IM LB402) Peak Gain(dBi) 1.5 2.3 2.4 Efficiency(%) 65 68 65 Efficiency(%)+ insertion loss 67 70 67 5GHz Frequency(MHz) 5150 5500 5850 Ant.1 (RFFPA391608 IMLB403) Peak Gain(dBi) 2.7 2.9 2.8 Efficiency(%) 57 60 62 Efficiency(%)+ insertion loss 60 63 65 Ant.2 (RFFPA391610IM LB402) Peak Gain(dBi) 2.4 2.9 2.5 Efficiency(%) 52 54 58 Efficiency(%)+ insertion loss 55 57 61 Isolation Table 12 Isolation Worst mutual isolation (dB) 2.4GHz Band Worst mutual isolation (dB) 5GHz Band Antenna Ant.1 Ant.2 Ant.1 Ant.2 Ant.1 (RFFPA391608IMLB403) -16 -26 Ant.2 (RFFPA391610IMLB402) 2D Radiation Pattern Ant.2 (RFFPA391610IMLB402) (Wi-Fi Dual-band)Frequency(MHz) : 2400-2500 17 Azimuth Plane Theta = 90 Elevation Plane phi = 0 Elevation Plane phi = 90 2D Radiation Pattern Ant.2 (RFFPA391610IMLB402) (Wi-Fi Dual-band)Frequency(MHz) : 2400-2500 18 X-Y plane X-Z plane Y-Z plane Photo provided separately (Figure 4) 2D Radiation Pattern Ant.2 (RFFPA391610IMLB402) (Wi-Fi Dual-band)Frequency(MHz) : 5150-5850 19 Azimuth Plane Theta = 90 Elevation Plane phi = 0 Elevation Plane phi = 90 2D Radiation Pattern Ant.2 (RFFPA391610IMLB402) (Wi-Fi Dual-band)Frequency(MHz) : 5150-5850 20 X-Y plane X-Z plane Y-Z plane Photo provided separately (Figure 5) 2D Radiation Pattern Ant.1 Ant.2 Combine(Wi-Fi Dual- band)Frequency(MHz) : 2450 21 Azimuth Plane Theta = 90 Elevation Plane phi = 0 Elevation Plane phi = 90 2D Radiation Pattern Ant.1 Ant.2 Combine(Wi-Fi Dual- band)Frequency(MHz) : 2450 22 Azimuth Plane Theta = 90 Elevation Plane phi = 0 Elevation Plane phi = 90 2D Radiation Pattern Ant.1 Ant.2 Combine(Wi-Fi Dual- band)Frequency(MHz) : 2450 23 X-Y plane X-Z plane Y-Z plane Photo provided separately (Figure 6) 2D Radiation Pattern Ant.1 Ant.2 Combine(Wi-Fi Dual- band)Frequency(MHz) : 5500 24 Azimuth Plane Theta = 90 Elevation Plane phi = 0 Elevation Plane phi = 90 2D Radiation Pattern Ant.1 Ant.2 Combine(Wi-Fi Dual- band)Frequency(MHz) : 5500 25 Azimuth Plane Theta = 90 Elevation Plane phi = 0 Elevation Plane phi = 90 2D Radiation Pattern Ant.1 Ant.2 Combine(Wi-Fi Dual- band)Frequency(MHz) : 5500 26 X-Y plane X-Z plane Y-Z plane Photo provided separately (Figure 7) Summary 27 Summary Ant.1 (RFFPA391608IMLB403) Ant.2 (RFFPA391610IMLB402) Remark Return Loss –2.4GHz < -10dB < -10dB Return Loss –5GHz < -10dB < -9dB Efficiency –2.4GHz > 63% > 65% Efficiency +insertion loss– 2.4GHz > 66% > 68% Efficiency –5GHz > 57% > 52% Efficiency +insertion loss–5GHz > 60% > 55% Peak Gain –2.4GHz 1.8-2.5dBi 1.5-2.5dBi Peak Gain –5GHz 2.6-3.0dBi 2.4-3.0dBi Summary 28 Manufacturer: INPAQ Technology Co.,Ltd. Address : No. 90, Keyi St., Zhunan Township, Miaoli County 350402 Ant. 2.4G 5G UNII-1 5G UNII-2A 5G UNII-2C 5G UNII-3 Ant.1 (RFFPA391608IMLB403) 2.5 2.8 2.67 3.0 3.0 Ant.2 (RFFPA391610IMLB402) 2.5 2.5 2.5 3.0 2.7 29 Thank you 本資料均屬機密,僅供指定之收件人使用,未經寄件人許可不得揭露、複製或散佈本信件。 This message and any attachments are confidential and may be legally privileged. Any unauthorized review, use or distribution by anyone other than the intended recipient is strictly prohibited. If you are not the intended recipient, please immediately notify the sender, completely delete this documents, and destroy all copies. Your cooperation will be highly appreciated.

Contact Information

Applicant

Daniel Ramos(Senior VP, Corporate Development)
[email protected]Fax: 703-940-8990

Technical Contact

Alarm.com IncorporatedDaniel Ramos
[email protected]

8281 Greensboro Drive, Suite 100 · Tysons, Virginia, 22102 · United States

Test Firm

Sporton International Inc. Hsinhua LaboratoryAlex Chen
[email protected]Fax: +886-3-327-0978

Technical Specifications

#Rule PartsFrequency RangePower Output
115E5.18 GHz - 5.24 GHz92.00 mW
215E5.26 GHz - 5.32 GHz59.00 mW
315E5.50 GHz - 5.72 GHz63.00 mW
415E5.75 GHz - 5.83 GHz100.00 mW
Confidentiality
Long Term
Grant Notes
Output power listed is conducted. The antennas use for this device must be installed to provide a separation distance of at least 20 cm from all persons. Co-location of this device with other transmitters that operate simultaneously are required to be evaluated using the FCC multi-transmitter procedures. Installers and end-users must be provided with antenna installation instructions and transmitter operating conditions and instructions for satisfying RF exposure compliance.

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