DMOSKM1G4Handheld Transmitter

Document Version 1.1 2020-10-30 LONG-TERM CONFIDENTIALITY REQUEST for Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 TO WHOM IT M AY CONCERN Pursuant to Paragraphs §0.457 and 0.459 of the Commission’s Rules (47 C.F.R.) and Section §552(b)(4) of the Freedom of Information Act, we request Long-Term Confidentiality for the following product: For the product stated above, we request Long-Term Confidentiality for exhibits which contain Block Diagram, Operational Description, Parts List/Tune Up Info, Schematics, SDR Software/Security Info. The above exhibits contain ou r trade secrets and proprietary information that could be of benefit to o ur competitors. This information will not be publicly available. If you have any questions, please feel free to contact us at the address shown below. Sincerely, Company Name: Phone: Company Address: Fax: E-mail: Contact Name: Signature: Signature Date: Check your GC here. Click Grantee Search. FCC I D: Grantee Code Equipment Product Code

E-Label Information Example below is valid only for devices which are subject to Certification Procedure in USA. - connect SPECTERA SKM 1G4 to the SPECTERA Base Station 1. Press for backlight 2. Press again for Information screen 3. Press long for E-Label screen SKM connected to Base Station Label Location FCC ID: DMOSKM1G4 Packaging Label:

© cetecom advanced GmbH Page 1 of 25 TEST REPORT Test Report No.: 2-0021-26-01-06_TR1-R01 Testing Laboratory Applicant cetecom advanced GmbH Untertuerkheimer Strasse 6 – 10 66117 Saarbruecken / Germany Phone: + 49 681 5 98 - 0 Fax: + 49 681 5 98 - 9075 Internet: https://cetecomadvanced.com e-mail: [email protected] Accredited Testing Laboratory: The testing laboratory (area of testing) is accredited according to DIN EN ISO/IEC 17025 (2018-03) by the Deutsche Akkreditierungsstelle GmbH (DAkkS). The accreditation is valid for the scope of testing procedures as stated in the accreditation certificate with the registration number: D-PL-12047-01-00. ISED Testing Laboratory Recognized Listing Number: DE0001 FCC designation number: DE0002 Sennheiser electronic SE & Co. KG Am Labor 1 30900 Wedemark/GERMANY Phone: +49 5130 600-0 Contact: Ouajdi Ochi e-mail: [email protected] Phone: +49 5130 600 1482 Fax: +49 5130 600 76 1465 Manufacturer Sennheiser electronic SE & Co. KG Am Labor 1 30900 Wedemark/GERMANY Test Standards IEC/IEEE 62209-1528-2020 Measurement procedure for the assessment of specific absorption rate of human exposure to radio frequency fields from hand-held and body-mounted wireless communication devices – Part 1528: Human models, instrumentation, and procedures (Frequency range of 4 MHz to 10 GHz) For further applied test standards please refer to section 3 of this test report. Test Item Kind of test item: Handheld Transmitter for WMAS System Device type: portable device Model name: SPECTERA SKM 1G4 S/N serial number: 1226000415 FCC-ID: DMOSKM1G4 Hardware status: SMO Software status: -- Firmware Version: cert1.4.1 Frequency: 1435 – 1525 MHz / BW 6 MHz / 100mW ERP Antenna: integrated antenna Battery option: Li-ion Battery Pack BA 70 / 3.8 V / 1720 mAh Test sample status: identical prototype Exposure category: general population / uncontrolled environment This test report is electronically signed and valid without handwritten signature. For verification of the electronic signatures, the public keys can be requested at the testing laboratory. Test Report authorised: Test performed: Alexander Hnatovskiy Obada Abo Oun Coordinator Area Testing Manager Regulatory Services Radio Regulatory Services Radio Test report no.: 2-0021-26-01-06_TR1-R01 © cetecom advanced GmbH Page 2 of 25 1 Table of contents 1 Table of contents ............................................................................................................................................ 2 2 General information ....................................................................................................................................... 3 2.1 Notes and disclaimer .......................................................................................................................... 3 2.2 Application details ............................................................................................................................... 3 2.3 Statement of compliance .................................................................................................................... 3 3 Test standards/ procedures references ....................................................................................................... 4 3.1 RF exposure limits .............................................................................................................................. 4 4 Reporting statements of conformity – decision rule .................................................................................. 5 5 Summary of Measurement Results .............................................................................................................. 5 6 Test Environment ........................................................................................................................................... 5 7 Test Set-up ...................................................................................................................................................... 6 7.1 Measurement system .......................................................................................................................... 6 7.1.1 System Description ..................................................................................................................... 6 7.1.2 Test environment ........................................................................................................................ 7 7.1.3 Probe description ........................................................................................................................ 7 7.1.4 Phantom description ................................................................................................................... 8 7.1.5 Device holder description ........................................................................................................... 8 7.1.6 Scanning procedure .................................................................................................................... 9 7.1.7 Spatial Peak SAR Evaluation ................................................................................................... 13 7.1.8 Data Storage and Evaluation .................................................................................................... 15 7.1.9 Tissue simulating liquids: dielectric properties ......................................................................... 17 7.1.10 Tissue simulating liquids: parameters ...................................................................................... 17 7.1.11 Measurement uncertainty evaluation for SAR test ................................................................... 18 7.1.12 Measurement uncertainty evaluation for System Check .......................................................... 19 7.1.13 System check ........................................................................................................................... 20 7.1.14 Sys…

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Page 1 of 26 Annex D Appendix No.: 2-0021-26-01-06_TR1-A201-R01 Testing Laboratory cetecom advanced GmbH Untertuerkheimer Strasse 6 – 10 66117 Saarbruecken/Germany Phone: + 49 681 5 98 - 0 Fax: + 49 681 5 98 - 9075 Internet: https://www.cetecomadvanced.com e-mail: [email protected] Accredited Test Laboratory: The testing laboratory (area of testing) is accredited according to DIN EN ISO/IEC 17025 (2018-03) by the Deutsche Akkreditierungsstelle GmbH (DAkkS) The accreditation is valid for the scope of testing procedures as stated in the accreditation certificate starting with the registration number: D-PL-12047-01-00. Appendix with Calibration data, Phantom certificate and system check information Test report no.: 2-0021-26-01-06_TR1-A201-R01 Page 2 of 26 1 Table of contents 1 Table of contents ....................................................................................................................................... 2 2 Calibration report “Probe EX3DV4” – SN: 7635 ..................................................................................... 3 3 Calibration report “1450 MHz System validation dipole” .................................................................... 12 4 Calibration certificate of Data Acquisition Unit (DAE) – SN: 1387 ..................................................... 19 5 Certificate of “SAM Twin Phantom V8.0’’ ............................................................................................. 20 6 Application Note System Performance Check ..................................................................................... 21 6.1 Purpose of system performance check ..................................................................................... 21 6.2 System Performance check procedure ...................................................................................... 21 6.3 Uncertainty Budget ...................................................................................................................... 22 6.4 Power set-up for validation ......................................................................................................... 25 6.5 Laboratory reflection ................................................................................................................... 26 6.6 Additional system checks ........................................................................................................... 26 Test report no.: 2-0021-26-01-06_TR1-A201-R01 Page 3 of 26 2 Calibration report “Probe EX3DV4” – SN: 7635 Test report no.: 2-0021-26-01-06_TR1-A201-R01 Page 4 of 26 Test report no.: 2-0021-26-01-06_TR1-A201-R01 Page 5 of 26 Test report no.: 2-0021-26-01-06_TR1-A201-R01 Page 6 of 26 Test report no.: 2-0021-26-01-06_TR1-A201-R01 Page 7 of 26 Test report no.: 2-0021-26-01-06_TR1-A201-R01 Page 8 of 26 Test report no.: 2-0021-26-01-06_TR1-A201-R01 Page 9 of 26 Test report no.: 2-0021-26-01-06_TR1-A201-R01 Page 10 of 26 Test report no.: 2-0021-26-01-06_TR1-A201-R01 Page 11 of 26 Test report no.: 2-0021-26-01-06_TR1-A201-R01 Page 12 of 26 3 Calibration report “1450 MHz System validation dipole” Test report no.: 2-0021-26-01-06_TR1-A201-R01 Page 13 of 26 Test report no.: 2-0021-26-01-06_TR1-A201-R01 Page 14 of 26 Test report no.: 2-0021-26-01-06_TR1-A201-R01 Page 15 of 26 Test report no.: 2-0021-26-01-06_TR1-A201-R01 Page 16 of 26 Test report no.: 2-0021-26-01-06_TR1-A201-R01 Page 17 of 26 Test report no.: 2-0021-26-01-06_TR1-A201-R01 Page 18 of 26 Antenna Parameters with Head TSL From cal. data Measured 2026-08-04 Impedance; transformed to feed point 51.7Ω -0.0jΩ 49.1Ω +0.2jΩ Return Loss -35.7dB -40.2dB Test report no.: 2-0021-26-01-06_TR1-A201-R01 Page 19 of 26 4 Calibration certificate of Data Acquisition Unit (DAE) – SN: 1387 Test report no.: 2-0021-26-01-06_TR1-A201-R01 Page 20 of 26 5 Certificate of “SAM Twin Phantom V8.0’’ Test report no.: 2-0021-26-01-06_TR1-A201-R01 Page 21 of 26 6 Application Note System Performance Check 6.1 Purpose of system performance check The system performance check verifies that the system operates within its specifications. System and operator errors can be detected and corrected. It is recommended that the system performance check is performed prior to any usage of the system in order to guarantee reproducible results. The measurement of the Specific Absorption Rate (SAR) is a complicated task and the result depends on the proper functioning of many components and the correct settings of many parameters. Faulty results due to drift, failures or incorrect parameters might not be recognized, since they often look similar in distribution to the correct ones. The Dosimetric Assessment System DASY incorporates a system performance check procedure to test the proper functioning of the system. The system performance check uses normal SAR measurements in a simplified setup (the flat section of the SAM Twin Phantom) with a well characterized source (a matched dipole at a specified distance). This setup was selected to give a high sensitivity to all parameters that might fail or vary over time (e.g., probe, liquid parameters, and software settings) and a low sensitivity to external effects inherent in the system (e.g., positioning uncertainty of the device holder). The system performance check does not replace the calibration of the components. The accuracy of the system performance check is not sufficient for calibration purposes. It is possible to calculate the field quite accurately in this simple setup; however, due to the open field situation some factors (e.g., laboratory reflections) cannot be accounted for. Calibrations in the flat phantom are possible with transfer calibration methods, using either temperature probes or calibrated E-field probes. The system performance check also does not test the system performance for arbitrary field situations encountered during real measurements of mobile phones. These checks are performed at SPEAG by testing the components under v…

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Internal Antenna Pattern SPECTERA SKM Internal Azimuth = 0.0 Elevation = 90.0 Roll = 0.0 Power (dßm) 1. Radiated Pattern 1.1 SPECTERA SKM UHF, 474 MHz TX freq. (MHz) TRP (dBm) Directivity (dBi) NH45 (dBm) NH30 (dBm) EIRP (dBm) 474 15.3 2.1 14.7 13.6 17.4 18 18 14 14 10 10 6 6 2 2 -2 18 30 14 60 0 330 -2 300 10 90 270 6 2 Max: 20 Min: 10 Scale: 1/div -2 120 150 180 Phi Angle (°) 210 240 Theta = 90° Power (dßm) Power (dßm) Power (dßm) Internal Azimuth = 0.0 Elevation = 90.0 Roll = 0.0 Power (dßm) 1.2 SPECTERA SKM UHF, 534 MHz TX freq. (MHz) TRP (dBm) Directivity (dBi) NH45 (dBm) NH30 (dBm) EIRP (dBm) 534 14.8 2.5 14.4 13.4 17.3 20 20 15 15 10 10 5 5 0 0 -5 20 30 15 60 0 330 -5 300 10 90 270 5 0 Max: 20 Min: 10 Scale: 1/div -5 120 150 180 Phi Angle (°) 210 240 Theta = 90° Power (dßm) Power (dßm) Power (dßm) Internal Azimuth = 0.0 Elevation = 90.0 Roll = 0.0 Power (dßm) Power (dßm) 1.3 SPECTERA SKM UHF, 584 MHz TX freq. (MHz) TRP (dBm) Directivity (dBi) NH45 (dBm) NH30 (dBm) EIRP (dBm) 584 13.2 3.1 12.7 11.8 16.3 18 18 12 12 8 8 4 4 0 0 -4 18 30 60 12 0 330 -4 300 8 90 270 4 0 Max: 20 Min: 10 Scale: 1/div -4 120 150 180 Phi Angle (°) 210 240 Theta = 90° Power (dßm) Power (dßm) Internal Azimuth = 0.0 Elevation = 90.0 Roll = 0.0 Power (dßm) Power (dßm) 1.4 SPECTERA SKM UHF, 604 MHz TX freq. (MHz) TRP (dBm) Directivity (dBi) NH45 (dBm) NH30 (dBm) EIRP (dBm) 604 14.2 3.3 13.8 12.9 17.5 20 20 15 15 10 10 5 5 0 0 -5 -5 -10 20 15 10 0 30 330 60 300 -10 5 90 270 0 -5 -10 Max: 20 Min: 10 Scale: 1/div 120 150 180 Phi Angle (°) 210 240 Theta = 90° Power (dßm) Power (dßm) Internal Azimuth = 0.0 Elevation = 90.0 Roll = 0.0 Power (dßm) 1.5 SPECTERA SKM UHF, 634 MHz TX freq. (MHz) TRP (dBm) Directivity (dBi) NH45 (dBm) NH30 (dBm) EIRP (dBm) 634 13.9 3.3 13.5 12.6 17.2 20 20 15 15 10 10 5 5 0 0 -5 20 30 15 60 0 330 -5 300 10 90 270 5 0 Max: 20 Min: 10 Scale: 1/div -5 120 150 180 Phi Angle (°) 210 240 Theta = 90° Power (dßm) Power (dßm) Power (dßm) Internal Azimuth = 0.0 Elevation = 90.0 Roll = 0.0 Power (dßm) Power (dßm) 1.6 SPECTERA SKM UHF, 694 MHz TX freq. (MHz) TRP (dBm) Directivity (dBi) NH45 (dBm) NH30 (dBm) EIRP (dBm) 694 14.1 3.4 13.5 12.3 17.5 20 20 15 15 10 10 5 5 0 0 -5 -5 -10 20 15 10 0 30 330 60 300 -10 5 90 270 0 -5 -10 Max: 20 Min: 10 Scale: 1/div 120 150 180 Phi Angle (°) 210 240 Theta = 90° Power (dßm) Power (dßm) Internal Azimuth = 0.0 Elevation = 90.0 Roll = 0.0 Power (dßm) Power (dßm) 1.7 SPECTERA SKM 1G4, 1354 MHz TX freq. (MHz) TRP (dBm) Directivity (dBi) NH45 (dBm) NH30 (dBm) EIRP (dBm) 1354 13.4 4.9 12.0 9.6 18.3 20 20 15 15 10 10 5 5 0 0 -5 -5 -10 20 15 10 0 30 330 60 300 -10 5 90 270 0 -5 -10 Max: 16 Min: 0 Scale: 2/div 120 150 180 Phi Angle (°) 210 240 Theta = 90° Power (dßm) Power (dßm) Internal 1.8 SPECTERA SKM 1G4, 1394 MHz TX freq. (MHz) TRP (dBm) Directivity (dBi) NH45 (dBm) NH30 (dBm) EIRP (dBm) 1394 12.5 5.1 11.1 8.7 17.6 20 15 10 5 0 -5 -10 20 15 10 5 0 -5 -10 -15 20 15 10 0 30 330 60 300 -15 5 90 270 0 -5 -10 -15 Max: 16 Min: 0 Scale: 2/div 120 150 180 Phi Angle (°) 210 240 Theta = 90° Azimuth = 0.0 Elevation = 90.0 Roll = 0.0 Power (dßm) Power (dßm) Power (dßm) Power (dßm) Internal Azimuth = 0.0 Elevation = 90.0 Roll = 0.0 Power (dßm) Power (dßm) 1.9 SPECTERA SKM 1G4, 1448 MHz TX freq. (MHz) TRP (dBm) Directivity (dBi) NH45 (dBm) NH30 (dBm) EIRP (dBm) 1448 11.4 5.3 9.9 7.5 16.7 20 20 15 15 10 10 5 5 0 0 -5 -5 -10 20 15 10 0 30 330 60 300 -10 5 90 270 0 -5 -10 Max: 16 Min: 0 Scale: 2/div 120 150 180 Phi Angle (°) 210 240 Theta = 90° Power (dßm) Power (dßm) Internal Azimuth = 0.0 Elevation = 90.0 Roll = 0.0 Power (dßm) Power (dßm) 1.10 SPECTERA SKM 1G4, 1496 MHz TX freq. (MHz) TRP (dBm) Directivity (dBi) NH45 (dBm) NH30 (dBm) EIRP (dBm) 1496 10.1 5.2 8.4 6.1 15.3 20 20 15 15 10 10 5 5 0 0 -5 -5 -10 20 15 10 0 30 330 60 300 -10 5 90 270 0 -5 -10 Max: 16 Min: 0 Scale: 2/div 120 150 180 Phi Angle (°) 210 240 Theta = 90° Power (dßm) Power (dßm) Internal 1.11 SPECTERA SKM 1G4, 1521 MHz TX freq. (MHz) TRP (dBm) Directivity (dBi) NH45 (dBm) NH30 (dBm) EIRP (dBm) 1521 10.4 5.2 8.8 6.4 15.6 20 15 10 5 0 -5 -10 20 15 10 5 0 -5 -10 -15 20 15 10 0 30 330 60 300 -15 5 90 270 0 -5 -10 -15 Max: 16 Min: 0 Scale: 2/div 120 150 180 Phi Angle (°) 210 240 Theta = 90° 2. Results Summary SPECTERA SKM UHF: Freq / MHz 474 534 584 604 634 694 Tot. Rad. Pwr. (dßm) 15.3 14.8 13.2 14.2 13.9 14.1 Peak EIRP (dßm) 17.4 17.3 16.3 17.5 17.2 17.5 Directivity (dßi) 2.1 2.5 3.1 3.3 3.3 3.4 SPECTERA SKM 1G4: Freq / MHz 1354 1394 1448 1496 1521 Tot. Rad. Pwr. (dßm) 13.4 12.5 11.4 10.1 10.4 Peak EIRP (dßm) 18.3 17.6 16.7 15.3 15.6 Directivity (dßi) 4.9 5.1 5.3 5.2 5.2 Azimuth = 0.0 Elevation = 90.0 Roll = 0.0 Power (dßm) Power (dßm) Power (dßm) Power (dßm)

Test Laboratory: 7layers GmbH Borsigstrasse 11 40880 Ratingen Germany Note: The following test results relate only to the devices specified in this document. This report shall not be reproduced in parts without the written approval of the test laboratory. 7layers GmbH Geschäftsführer/ Borsigstraße 11 Managing Directors: Registergericht/registered: a Bureau Veritas 40880 Ratingen, Germany Martina Kerbl Düsseldorf HRB 75554 Group Company T +49 (0) 2102 749 0 Bernhard Retka USt-Id.-Nr./VAT-No. DE203159652 F +49 (0) 2102 749 350 Steuer-Nr./TAX-No. 147/5869/0385 www.7layers.com Commerzbank AG Account No. 303 016 000 Bank Code 300 400 00 IBAN DE81 3004 0000 0303 0160 00 Swift Code COBADEFF FCC Measurement / Technical Report on SPECTERA SKM SKM 1G4 FCC ID: DMOSK M1G4 IC: 2099A-SK M1G4 Test Report Reference: MDE_SENNH_26 02_FCC_01 TEST REPORT REFERENCE: MDE_SENNH_2602_FCC_01 Page 2 of 50 Table of Contents 1 Applied Standards and Test Summary ........................................................................ 3 1.1 Applied Standards ............................................................................................ 3 2 Measurement Summary ............................................................................................ 4 3 Revision History ....................................................................................................... 6 4 Administrative Data .................................................................................................. 7 4.1 Testing Laboratory ........................................................................................... 7 4.2 Project Data .................................................................................................... 7 4.3 Applicant Data ................................................................................................. 7 4.4 Manufacturer Data ........................................................................................... 7 5 Test Object Data ...................................................................................................... 8 5.1 General Description of Radio Device ................................................................... 8 5.2 Tested Radio Devices ........................................................................................ 9 5.3 Tested Ancillary Equipment ............................................................................... 9 5.4 General description of auxiliary equipment .......................................................... 9 5.5 Used setups..................................................................................................... 9 5.6 Operating Modes / Test Channels ..................................................................... 10 5.7 Product labelling ............................................................................................ 10 6 Test Results .......................................................................................................... 11 6.1 Output Power Conducted ................................................................................. 11 6.2 Transmitter Frequency Stability ....................................................................... 14 6.3 Occupied Bandwidth ....................................................................................... 17 6.4 Transmitter unwanted emissions in the spurious domain ..................................... 21 6.5 Transmitter unwanted emissions in the out of band domain ................................. 33 7 Test Equipment used for tests ................................................................................. 36 7.1 Test Equipment Hardware ............................................................................... 36 7.2 Test Equipment Software ................................................................................ 39 8 Antenna Factors, Cable Loss and Sample Calculations ................................................ 40 8.1 LISN R&S ESH3-Z5 (150 kHz – 30 MHz) ........................................................... 40 8.2 Antenna R&S HFH2-Z2 (9 kHz – 30 MHz) .......................................................... 41 8.3 Antenna R&S HL562 (30 MHz – 1 GHz) ............................................................. 42 8.4 Antenna R&S HF907 (1 GHz – 18 GHz) ............................................................. 43 8.5 Antenna EMCO 3160-09 (18 GHz – 26.5 GHz) ................................................... 44 8.6 Antenna EMCO 3160-10 (26.5 GHz – 40 GHz) ................................................... 45 9 Measurement Uncertainties ..................................................................................... 46 10 Photo Report ..................................................................................................... 47 TEST REPORT REFERENCE: MDE_SENNH_2602_FCC_01 Page 3 of 50 1 APPLIED STANDARDS AND TEST SUMMARY 1.1 APPLIED STANDARDS Applicable FCC Rules Prepared in accordance with the requirements of FCC Rules and Regulations as listed in 47 CFR Ch.1 Parts 2, 15 and 74 (10-1-24 Edition). The following subparts are applicable to the results in this test report. Part 2, Subpart J - Equipment Authorization Procedures, Certification Part 15, Subpart C – Intentional Radiators §15.207 Conducted limits Part 74, Subpart H – Low Power Auxiliary Stations §74.802 Frequency Assignment §74.861 Technical Requirements Note: • ANSI C63.26–2015 is applied. • EN 300 422-1, V2.2.1 is applied TEST REPORT REFERENCE: MDE_SENNH_2602_FCC_01 Page 4 of 50 2 MEASUREMENT SUMMARY 47 CFR CHAPTER I FCC PART 15.207 §15.207 (a) Conducted AC measurement The measurement was performed according to ANSI C63.10, chapter 6.2 Final Result OP-Mode Band, Measurement method, Radio Technology Setup Date FCC IC -, -, - - - N/A N/A 47 CFR CHAPTER I FCC PART 74H §74.861 (d)(1) Output Power Conducted The measurement was performed according to ANSI C63.26, chapter 5.2.4.4 Final Result OP-Mode …

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