HV4STU540ALCD SIGNATURE PAD

1/1 DASY8 Module WPT Measurement Report Device under test Info: 01_Front_0mm Tool info DASY software version: DASY8 Module WPT 2.8.0.5184 Probe model, serial no. and configuration date: MAGPy-8H3D+E3Dv2, WP000211, 2025/06/05 Software version: 2.8.8, backend: 2.2.36 Scan info Center location: x: 54.55 mm, y: -5.70 mm, z: 24.42 mm Dimensions: x: 256.5 mm, y: 257.0 mm, z: 36.7 mm Resolution: x: 7.33 mm, y: 7.33 mm, z: 7.33 mm Completed on: 2026/03/05 Measurement results Maximum H-field [rms]: magnitude:761.82 mA/m x: 347.16 mA/m, y: 10.07 mA/m, z: 678.05 mA/m Maximum H-field location relative to DUT: x: -3.67 mm, y: -25.67 mm, z: 8.50 mm Maximum E-field [rms]: magnitude:7.47 V/m x: 215.36 mV/m, y: 2.70 V/m, z: 6.96 V/m Maximum E-field location relative to DUT: x: 44.00 mm, y: 58.67 mm, z: 0.00 m Distance to -20.0 dB boundary: 7.33 mm Offset relative to DUT: x: 0.00 m, y: 0.00 m, z: 1.00 mm H-field magnitude [rms] at center locationH-field magnitude [rms] at lowest plane Incident fields and induced fields in the homogeous phantom at the peak frequency Peak incident fields [rms] Peak E ind [V/m, rms] Peak J ind [A/m 2 , rms ] psSAR [mW/kg]H-field extent Distance [mm] H inc [A/m]E inc [V/m] Cube avg.LocalLine avg.Surface avg.1g avg.10g avg. -20 dB radius [mm] 0.00 1.157.470.02070.0220.02219.88e-37.96e-53.03e-559.1 Compliance evaluation (Field values at the peak frequency) ICNIRP 2010/2020ICNIRP 1998IEEE 2019FCCHC Code 6 RL [rms]BR [rms]RL [rms]BR [rms]ERL [rms]DRL [rms]MPE [rms]BR [rms]RL [rms]BR [rms] Distance pH inc pE inc pE indpsSAR pH inc pE inc pJ indpsSAR pH inc pE inc pE indpsSAR pH inc pE inc pE indpsSAR pH inc pE inc pE indpsSAR [mm][A/m][V/m][V/m][mW/kg][A/m][V/m] [A/m 2 ] [mW/kg][A/m][V/m][V/m][mW/kg][A/m][V/m][V/m][mW/kg][A/m][V/m][V/m][mW/kg] 0.00 1.157.470.119 3.13e- 5 1.157.470.0107 3.13e- 5 1.157.470.0693 3.13e- 5 1.157.47N/A 8.05e- 5 1.157.470.178 8.05e- 5 Coverage factors: w E ind, cube avg. = [5.69], w E ind, local = [8.03], w E ind, line avg. = [3.08] Compliance evaluation (Exposure ratios) (with multi-frequency enhancement, total field evaluation, coverage evaluation) ICNIRP 2010/2020ICNIRP 1998IEEE 2019FCCHC Code 6 RLBRRLBRERLDRLMPEBRRLBR Distance [mm] pH inc pE inc pE indpsSAR pH inc pE inc pJ indpsSAR pH inc pE inc pE indpsSAR pH inc pE inc pE indpsSAR pH inc pE inc pE indpsSAR NSTHNSTHNSTHN/AN/ANSTHNSTHNSTHNSTHN/AN/AN/ATHNSTHNSTHNSTH 0.00 0.050.13258.0>9990.05<0.010.85398.02.26<0.01<0.010.0234.8>9990.03<0.010.7171.9N/A<0.010.010.85258.0N/A0.05<0.01 Coverage factors: w E ind, cube avg. = [5.69], w E ind, local = [8.03], w E ind, line avg. = [3.08] Simulation performed at 2026/03/05 using Sim4Life version 8.0.1.15737 1/1 DASY8 Module WPT Measurement Report Device under test Info: 06_Top_0mm Tool info DASY software version: DASY8 Module WPT 2.8.0.5184 Probe model, serial no. and configuration date: MAGPy-8H3D+E3Dv2, WP000211, 2025/06/05 Software version: 2.8.8, backend: 2.2.36 Scan info Center location: x: 44.35 mm, y: -36.15 mm, z: 176.84 mm Dimensions: x: 80.6 mm, y: 256.5 mm, z: 37.0 mm Resolution: x: 7.33 mm, y: 7.33 mm, z: 7.33 mm Completed on: 2026/03/05 Measurement results Maximum H-field [rms]: magnitude:134.33 mA/m x: 69.81 mA/m, y: 57.68 mA/m, z: 99.22 mA/m Maximum H-field location relative to DUT: x: -3.67 mm, y: -47.67 mm, z: 8.50 mm Maximum E-field [rms]: magnitude:9.46 V/m x: 2.48 V/m, y: 4.11 V/m, z: 8.16 V/m Maximum E-field location relative to DUT: x: 14.67 mm, y: -124.67 mm, z: 0.00 m Distance to -20.0 dB boundary: 7.33 mm Offset relative to DUT: x: 0.00 m, y: 0.00 m, z: 1.00 mm H-field magnitude [rms] at center locationH-field magnitude [rms] at lowest plane Incident fields and induced fields in the homogeous phantom at the peak frequency Peak incident fields [rms] Peak E ind [V/m, rms] Peak J ind [A/m 2 , rms ] psSAR [mW/kg]H-field extent Distance [mm] H inc [A/m]E inc [V/m] Cube avg.LocalLine avg.Surface avg.1g avg.10g avg. -20 dB radius [mm] 0.00 0.2249.462.42e-32.61e-32.46e-31.17e-31.62e-68.19e-775.5 Compliance evaluation (Field values at the peak frequency) ICNIRP 2010/2020ICNIRP 1998IEEE 2019FCCHC Code 6 RL [rms]BR [rms]RL [rms]BR [rms]ERL [rms]DRL [rms]MPE [rms]BR [rms]RL [rms]BR [rms] Distance pH inc pE inc pE indpsSAR pH inc pE inc pJ indpsSAR pH inc pE inc pE indpsSAR pH inc pE inc pE indpsSAR pH inc pE inc pE indpsSAR [mm][A/m][V/m][V/m][mW/kg][A/m][V/m] [A/m 2 ] [mW/kg][A/m][V/m][V/m][mW/kg][A/m][V/m][V/m][mW/kg][A/m][V/m][V/m][mW/kg] 0.00 0.2249.460.0158 2.34e- 6 0.2249.46 2.24e- 3 2.34e- 6 0.2249.46 9.26e- 3 2.34e- 6 0.2249.46N/A 3.15e- 6 0.2249.460.0233 3.15e- 6 Coverage factors: w E ind, cube avg. = [5.93], w E ind, local = [8.38], w E ind, line avg. = [3.19] Compliance evaluation (Exposure ratios) (with multi-frequency enhancement, total field evaluation, coverage evaluation) ICNIRP 2010/2020ICNIRP 1998IEEE 2019FCCHC Code 6 RLBRRLBRERLDRLMPEBRRLBR Distance [mm] pH inc pE inc pE indpsSAR pH inc pE inc pJ indpsSAR pH inc pE inc pE indpsSAR pH inc pE inc pE indpsSAR pH inc pE inc pE indpsSAR NSTHNSTHNSTHN/AN/ANSTHNSTHNSTHNSTHN/AN/AN/ATHNSTHNSTHNSTH 0.00 0.010.02196.0>9990.03<0.010.16311.01.72<0.01<0.01<0.0126.5>9990.02<0.010.1455.9N/A<0.01<0.010.16196.0N/A0.03<0.01 Coverage factors: w E ind, cube avg. = [5.93], w E ind, local = [8.38], w E ind, line avg. = [3.19] Simulation performed at 2026/03/05 using Sim4Life version 8.0.1.15737

1/1 DASY8 Module WPT Measurement Report Device under test Info: V-Coil50400_1018 Tool info DASY software version: DASY8 Module WPT 2.8.0.5184 Probe model, serial no. and configuration date: MAGPy-8H3D+E3Dv2, WP000211, 2025/06/05 Software version: 2.8.8, backend: 2.2.36 Scan info Center location: x: 77.99 mm, y: -45.84 mm, z: 38.35 mm Dimensions: x: 169.0 mm, y: 168.8 mm, z: 36.6 mm Resolution: x: 7.33 mm, y: 7.33 mm, z: 7.33 mm Completed on: 2026/03/05 Measurement results Maximum H-field [rms]: magnitude:132.99 A/m x: 4.15 A/m, y: 2.58 A/m, z: 132.90 A/m Maximum H-field location relative to DUT: x: -18.33 mm, y: -3.67 mm, z: 8.50 mm Maximum E-field [rms]: magnitude:50.61 V/m x: 20.56 V/m, y: 8.07 V/m, z: 45.54 V/m Maximum E-field location relative to DUT: x: 0.00 m, y: -36.67 mm, z: 0.00 m Distance to -20.0 dB boundary: 37.39 mm Offset relative to DUT: x: 0.00 m, y: 0.00 m, z: 1.00 mm H-field magnitude [rms] at center locationH-field magnitude [rms] at lowest plane Incident fields and induced fields in the homogeous phantom at the peak frequency Peak incident fields [rms] Peak E ind [V/m, rms] Peak J ind [A/m 2 , rms ] psSAR [mW/kg]H-field extent Distance [mm] H inc [A/m]E inc [V/m] Cube avg.LocalLine avg.Surface avg.1g avg.10g avg. -20 dB radius [mm] 0.00 27550.64.344.454.442.737.253.5539.1 2.0024147.13.703.813.812.315.292.6339.4 Compliance evaluation (Field values at the peak frequency) ICNIRP 2010/2020ICNIRP 1998IEEE 2019FCCHC Code 6 RL [rms]BR [rms]RL [rms]BR [rms]ERL [rms]DRL [rms]MPE [rms]BR [rms]RL [rms]BR [rms] Distance pH inc pE inc pE indpsSAR pH inc pE inc pJ indpsSAR pH inc pE inc pE indpsSAR pH inc pE inc pE indpsSAR pH inc pE inc pE indpsSAR [mm][A/m][V/m][V/m][mW/kg][A/m][V/m] [A/m 2 ] [mW/kg][A/m][V/m][V/m][mW/kg][A/m][V/m][V/m][mW/kg][A/m][V/m][V/m][mW/kg] 0.00 27550.64.343.5527550.62.733.5527550.64.453.5527550.6N/A7.2527550.64.467.25 2.00 24147.13.712.6324147.12.312.6324147.13.812.6324147.1N/A5.2924147.13.825.29 Compliance evaluation (Exposure ratios) (with multi-frequency enhancement, total field evaluation) ICNIRP 2010/2020ICNIRP 1998IEEE 2019FCCHC Code 6 RLBRRLBRERLDRLMPEBRRLBR Distance [mm] pH inc pE inc pE indpsSAR pH inc pE inc pJ indpsSAR pH inc pE inc pE indpsSAR pH inc pE inc pE indpsSAR pH inc pE inc pE indpsSAR NSTHNSTHNSTHN/AN/ANSTHNSTHNSTHNSTHN/AN/AN/ATHNSTHNSTHNSTH 0.00 13.122.569.513.30.09<0.01151.0167.04.02<0.011.693.029.3922.70.06<0.01169.075.9N/A<0.013.06151.069.5N/A0.09<0.01 2.00 11.519.764.712.40.08<0.01132.0156.03.45<0.011.482.658.7421.10.05<0.01148.070.6N/A<0.012.68132.064.7N/A0.08<0.01 simulation performed at 2026/03/05 using Sim4Life version 8.0.1.15737

SPORTON INTERNATIONAL INC. Page Number : 1 of 12 TEL : 886-3-327-3456 Report Issued Date : Mar. 10, 2026 FAX : 886-3-328-4978 RF Exposure Report Report No. : FA620412 RF Exposure Report FCC ID : HV4STU540A Equipment : LCD SIGNATURE PAD Brand Name : Wacom Model Name : STU-540、STU-540*******(*may be alphanumeric/symbol or blank) Applicant : Wacom Co., Ltd. 2-510-1, Toyonodai, Kazo-shi, Saitama, 349-1148 Japan Manufacture : Wacom Co., Ltd. 2-510-1, Toyonodai, Kazo-shi, Saitama, 349-1148 Japan Standard : FCC 47 CFR Part 2.1093 The product was received on Feb. 26, 2026 and testing was started from Mar. 05, 2026 and completed on Mar. 05, 2026. We, SPORTON INTERNATIONAL INC., would like to declare that the tested sample provide by manufacturer and the test data has been evaluated in accordance with the test procedures given in 47 CFR Part 2.1093 and has been pass the FCC requirement. The results in this report apply exclusively to the tested model / sample. Without written approval of SPORTON INTERNATIONAL INC. Laboratory, the test report shall not be reproduced except in full. Sporton International Inc. Wensan Laboratory No.58, Aly. 75, Ln. 564, Wenhua 3rd, Rd., Guishan Dist., Taoyuan City 333010, Taiwan Approved by: Cona Huang / Deputy Manager SPORTON INTERNATIONAL INC. Page Number : 2 of 12 TEL : 886-3-327-3456 Report Issued Date : Mar. 10, 2026 FAX : 886-3-328-4978 RF Exposure Report Report No. : FA620412 Table of Contents 1. DESCRIPTION OF EQUIPMENT UNDER TEST (EUT) ............................................................................. 4 2. RF EXPOSURE LIMIT ................................................................................................................................. 4 3. SYSTEM DESCRIPTION AND SETUP ....................................................................................................... 5 4. EQUIPMENT LIST ....................................................................................................................................... 8 5. SYSTEM VALIDIATION .............................................................................................................................. 8 6. RF EXPOSURE RESULTS .......................................................................................................................... 9 6.1. Maximum Permissible Exposure Evaluation ..................................................................................... 9 6.2. Peak Spatial-Average SAR Evaluation .............................................................................................. 9 7. UNCERTAINTY .......................................................................................................................................... 10 8. REFERENCE ............................................................................................................................................. 12 Appendix A. Plots of System Performance Check Appendix B. Plots of Highest Measurement Result Appendix C. DASY Calibration Certificate Appendix D. Test Setup Photo SPORTON INTERNATIONAL INC. Page Number : 3 of 12 TEL : 886-3-327-3456 Report Issued Date : Mar. 10, 2026 FAX : 886-3-328-4978 RF Exposure Report Report No. : FA620412 Revision History REPORT NO. VERSION DESCRIPTION ISSUED DATE FA620412 Rev. 01 Initial issue of report Mar. 10, 2026 SPORTON INTERNATIONAL INC. Page Number : 4 of 12 TEL : 886-3-327-3456 Report Issued Date : Mar. 10, 2026 FAX : 886-3-328-4978 RF Exposure Report Report No. : FA620412 1. Description of Equipment Under Test (EUT) Product Feature & Specification FCC ID HV4STU540A Equipment LCD SIGNATURE PAD Brand Name Wacom Model Name STU-540、STU-540*******(*may be alphanumeric/symbol or blank) Frequency Range 531.25 KHz, 562.5 KHz Mode ASK 2. RF Exposure Limit <Limits for Maximum Permissible Exposure> § 1.1310 The criteria listed in table 1 shall be used to evaluate the environmental impact of human exposure to radio frequency(RF) radiation as specified in § 1.1307(b), except in the case of portable devices which shall be evaluated according to the provisions of § 2.1093 of this chapter. (1) Occupational/controlled exposure limits apply in situations in which persons are exposed as a consequence of their employment provided those persons are fully aware of the potential for exposure and can exercise control over their exposure. Limits for occupational/controlled exposure also apply in situations when a person is transient through a location where occupational/controlled limits apply provided he or she is made aware of the potential for exposure. The phrase fully aware in the context of applying these exposure limits means that an exposed person has received written and/or verbal information fully explaining the potential for RF exposure resulting from his or her employment. With the exception of transient persons, this phrase also means that an exposed person has received appropriate training regarding work practices relating to controlling or mitigating his or her exposure. Such training is not required for transient persons, but they must receive written and/or verbal information and notification (for example, using signs) concerning their exposure potential and appropriate means available to mitigate their exposure. The phrase exercise control means that an exposed person is allowed to and knows how to reduce or avoid exposure by administrative or engineering controls and work practices, such as use of personal protective equipment or time averaging of exposure. (2) General population/uncontrolled exposure limits apply in situations in which the general public may be exposed, or in which persons who are exposed as a consequence of their employment may not be fully aware of the potential for exposure or cannot exercise control over their exposure. <Limit for peak spatial-average SAR> The SAR limits for general population/uncontrolled exposure are 0.08 W/kg, as averaged over the whole body, and a peak spatial- average SAR …

Text truncated - open the document above for the full version.

FCC TEST REPORT Report No. : FR620412AP TEL : 886-3-327-3456 Page Number : 1 of 17 FAX : 886-3-327-0973 Issued Date : May 05, 2026 Report Template No.: HE1-C3 Ver3.1 Report Version : 01 FCC ID: HV4STU540A / 8729A-STU540 FCC TEST REPORT FCC ID : HV4STU540A Equipment : LCD SIGNATURE PAD Brand Name : Wacom Model Name : STU-540、STU-540*******(*may be alphanumeric/symbol or blank) Applicant : Wacom Co., Ltd. 2-510-1, Toyonodai, Kazo-shi, Saitama, 349-1148 Japan Manufacturer : Wacom Co., Ltd. 2-510-1, Toyonodai, Kazo-shi, Saitama, 349-1148 Japan Standard : 47 CFR FCC Part 15.209 The product was received on Feb. 06, 2026, and testing was started from Apr. 13, 2026 and completed on Apr. 21, 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 SPORTON INTERNATIONAL INC. Hsinhua Laboratory No.52, Huaya 1st Rd., Guishan Dist., Taoyuan City 333411, Taiwan (R.O.C.) FCC TEST REPORT Report No. : FR620412AP TEL : 886-3-327-3456 Page Number : 2 of 17 FAX : 886-3-327-0973 Issued Date : May 05, 2026 Report Template No.: HE1-C3 Ver3.1 Report Version : 01 FCC ID: HV4STU540A / 8729A-STU540 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 ..................................................................................................................... 7 1.3 Testing Location Information .................................................................................................................. 7 1.4 Measurement Uncertainty ...................................................................................................................... 7 2 TEST CONFIGURATION OF EUT......................................................................................................... 8 2.1 Test Condition ........................................................................................................................................ 8 2.2 The Worst Case Configuration ............................................................................................................... 8 2.3 The Worst Case Measurement Configuration ........................................................................................ 8 2.4 Accessory ............................................................................................................................................... 9 2.5 Support Equipment ................................................................................................................................. 9 2.6 Test Setup Diagram ............................................................................................................................. 10 3 TRANSMITTER TEST RESULT .......................................................................................................... 11 3.1 AC Power-line Conducted Emissions .................................................................................................. 11 3.2 Transmitter Radiated Emissions .......................................................................................................... 13 3.3 Emission Bandwidth ............................................................................................................................. 16 4 TEST EQUIPMENT AND CALIBRATION DATA ................................................................................ 17 APPENDIX A. TEST RESULT OF AC POWER-LINE CONDUCTED EMISSIONS APPENDIX B. TEST RESULT OF TRANSMITTER RADIATED EMISSIONS APPENDIX C. TEST RESULT OF EMISSION BANDWIDTH APPENDIX D. TEST PHOTOS PHOTOGRAPHS OF EUT v01 FCC TEST REPORT Report No. : FR620412AP TEL : 886-3-327-3456 Page Number : 3 of 17 FAX : 886-3-327-0973 Issued Date : May 05, 2026 Report Template No.: HE1-C3 Ver3.1 Report Version : 01 FCC ID: HV4STU540A / 8729A-STU540 History of this test report Report No. Version Description Issued Date FR620412AP 01 Initial issue of report May 05, 2026 FCC TEST REPORT Report No. : FR620412AP TEL : 886-3-327-3456 Page Number : 4 of 17 FAX : 886-3-327-0973 Issued Date : May 05, 2026 Report Template No.: HE1-C3 Ver3.1 Report Version : 01 FCC ID: HV4STU540A / 8729A-STU540 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 15.209 Transmitter Radiated Emissions PASS - 3.3 15.215(c) Emission Bandwidth PASS - Reviewed by: Daniel Hsu Report Producer: Wendy Chen 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. FCC TEST REPORT Report No. : FR620412AP TEL : 886-3-327-3456 Page Number : 5 of 17 FAX : 886-3-327-0973 Issued Date : May 05, 2026 Report Template No.: HE1-C3 Ver3.1 Report Version : 01 FCC ID: HV4STU540A / 8729A-STU540 1 General Description 1.1 Information 1.1.1 RF General Info…

Text truncated - open the document above for the full version.

1. Antenna Description Antenna type Array coil Pointing antenna Manufacture Suzhou Wutong Electronics Co., Ltd Huwan industrial Park, Huangqiao Town, Xiangcheng District, Suzhou, Jiangsu, China Model Name PWB-F230 Frequency 531.25 kHz, 562.5 kHz