Text extracted from the exhibit documents filed with the FCC. Open a document above to read the original.
Rev 1/26/2023 To: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: September 3,2024 Ref: Attestation Statements Part 2.911(d)(7) Filing FCC ID: Y9ZFL61007WS7 3M Company (“the applicant”) certifies that, as of the date of the filing of the application, 3M Company is our designated U.S. agent for service of process for the above referenced FCC ID. 3M Company accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. 3M Company accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent Information: Name: 3M Company Address: 7911 Zionsville Rd, Indianapolis, IN 46268 FRN: 0005881040 Contact Person: Yuriy Litvinov Phone: 1-651-778-6336 Email: [email protected] Sincerely, 3M Company (U.S. agent company name printed name) Yury Litvinov U.S. agent company name signature
Date: September 4, 2024 To: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046, USA Ref: Attestation Statements Part 2.911(d)(5)(i) and Part 2.911(d)(5)(ii) Filing Re. KDB 986446 D01 FCC ID: Y9ZFL61007WS7 Dear Sir or Madam, 3M Company (“the applicant”) certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. We also certify that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. If you have any questions, please contact us. Sincerely, Yuriy Litvinov 3M Company, EHS and Product Stewardship Lead EMC Engineer 3M EMC Laboratory, Building 76 St. Paul, MN 55107-1208 Office: 651 778 6336 [email protected]
September 4, 2024 Federal Communications Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: Y9ZFL61007WS7 To whom it may concern, Pursuant to Sections 0.457(d)(1)(ii) and 0.459 of the Commission’s Rules, 3M Company hereby requests permanent confidential treatment of information accompanying this application as outlined below: Schematics Block Diagrams Operational Description The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to the Applicant and provide unjustified benefits to its competitors. The Applicant understands that pursuant to Rule 0.457(d)(1)(ii), disclosure of this Application and all accompanying materials will not be made before the date of the Grant for this Application. Yuriy Litvinov, Lead EMC Engineer EHS and Product Stewardship, 3M EMC Laboratory 410 E. Fillmore Ave. St. Paul, MN 55107-1208 Office: +1 651 778 6336 [email protected]
September 3, 2024 Federal Communications Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 Short-term Confidentiality FCC ID: Y9ZFL61007WS7 To whom it may concern, Request is hereby submitted by 3M Company to withhold from public review for a period of 180 days from the date of the Grant of Equipment Authorization and prior to marketing, certain portions of the application for equipment certification for the referenced FCC identifier. This request for confidentiality is made pursuant to 47 CFR 0.457(d) and 0.459 of the FCC Rules. In particular, the following sections of the application are to be kept confidential for a period of 180 days in addition to the Long-Term confidentiality request from the date of Authorization: • Test setup photos • External photos • Internal photos • User Manual 3M Company has invested considerable time and materials in research and development to produce the referenced product. Disclosure of the short-term confidential portions of this application during the period of importation and/or distribution would reveal key aspects of proprietary technology to competitors and diminish the value of our investment in research and development. The Applicant understands that pursuant to Rule 0.457(d)(1)(ii), disclosure of this Application and all accompanying materials will not be made before the date of the Grant for this Application. Yuriy Litvinov, Lead EMC Engineer EHS and Product Stewardship, 3M EMC Laboratory 410 E. Fillmore Ave. St. Paul, MN 55107-1208 Office: +1 651 778 6336 [email protected]
3M EMC Laboratory Report Number: HRE202312453-1 Date: September 12, 2024 Page 37 of 38 4.8 RF Exposure Evaluation Reference Standard(s): KDB 447498 RF Exposure Guidance v06 KDB 447498 Interim RF Exposure Guidance v01 RSS 102, Issue 5 MPE SAR Evaluation SAR Test Exclusion Frequency Range(s): 2402-2480.0MHz Antenna Separation Distance: >8mm RF Exposure Conditions: Portable (Body-worn) 2.4GHz Antenna Gain: 1.35dBi BR/EDR the source-based output power: 2.5mW(4.0dBm)*0.7(FHSS worst case duty cycle)= 1.8mW(2.6dBm) BR/EDR EIRP/ERP output power: EIRP=2.6dBm + 1.35dBi=3.95dBm, ERP=3.95dBm - 2.15dB=1.8dBm(1.5mW) LE/QHS the source-based output power: 2.8mW(4.5dBm)*0.85(worst case duty cycle)=2.4mW(3.8dBm) LE/QHS EIRP/ERP output power: EIRP=3.8dBm + 1.35Bi=5.15dBm, ERP=5.15dBm - 2.15dB= 3.0dBm(2mW) The SAR Exclusion Threshold Level FCC Part 2.1093 10mW<5mm @2.45GHz RSS 102, Issue 5 4mW<5mm @2.45GHz Note:
Antenna Gain Measurement Report CE3970B, for 3M Supplied PCB PIFA Antenna This summary contains 3D pattern swept gain results for a customer supplied sample antenna. Glenn Robb , Principal Engineer Antenna Test Lab Co. www.AntennaTestLab.com © 2024 by Antenna Test Lab Co. All rights reserved 2 Testing Summary On August 26th, 2024, a sample antenna was evaluated for gain vs frequency. In the 2400 to 2480 MHz band, the antenna’s peak observed gain was +1.35 dBi. Detailed Test Results 3D Gain Patterns The antenna was evaluated from 2300 to 2550 MHz in 1 MHz steps (251 data points). Absolute gain was measured on a spherical grid of 10 degree steps (in both theta and phi), or approximately 650 directions. The diagram below shows the antenna’s 3D gain pattern at 2440 MHz. 3 Peak Gain vs Frequency Graph The diagram below shows the antenna’s peak observed gain at each test frequency. In the 2400 to 2480 MHz band, the antenna’s peak observed gain was +1.35 dBi. 4 Average Gain vs Frequency Graph The diagram below shows the antenna’s calculated average gain at each test frequency. Average gain is reported in dBi and as a linear percentage (equivalent to radiation effi ciency). 5 Testing Details Photographs The following photos depict the Antenna’s test orientation and installation on the laboratory positioner. 6 7 Test Procedure Reference This evaluation followed IEEE Std 149-2021, IEEE Recommended Practice for Antenna Measurements, more commonly called “Substitution Method Testing”. Please refer to section 8.4 Gain-transfer measurements, subsection 8.4.1 Measurement of linearly-polarized antennas, within IEEE 149-2021. Test Procedure Summary An unknown antenna’s gain is measured by exciting the AUT (Antenna Under Test) with a swept RF signal in our anechoic chamber. The substitution method involves setting up our known calibrated laboratory reference antenna over a radiated path in the chamber, then normalizing (or “zeroing”) that path loss to 0 dB. We also normalize the received phase to zero degrees. In other words, the signal level (magnitude) and relative delay time are normalized (“zeroed”) as a sort of starting point for comparison measurements. 8 The Quad Ridge Chamber Antenna The “chamber antenna”, sometimes called the “Source Antenna” is an open boundary quad-ridge Vivaldi horn antenna. It is actually two antennas that occupy the same space. The gain/phase normalization described above is actually done twice. Once for the vertical ridges, and again for the horizontal ridges, since they are different antennas with slightly different gain and phase. 9 The Substitution Then we exchange our reference antenna for your Antenna Under Test (AUT), and re-measure the path gain/loss and phase changes relative to the previously normalized reference path. In other words, your AUT will have gain higher, the same, or lower than our reference antenna (a relative measurement). By simply adding our reference antenna’s calibrated gain (in dBi) to these path change measurements, we determine the AUT’s gain in dBi. Test Equipment Used The following laboratory equipment was used during this antenna evaluation. Please note that this equipment is NOT under any calibration program. The results presented here are not certified or traceable to any calibrated reference standard or laboratory accreditation. 10 Vector Network Analyzer Rohde & Schwarz ZVA40 Positioner Az/El by Sunol Sciences model ELAZ75 Anechoic chamber Rectangular (22 feet long) with 18-inch pyramidal absorber over ferrite tile, sized to allow a 3 meter test range Broadband Reference Horn Antenna 300 MHz to 30 GHz Open-boundary dielectric lens mode-suppressed double ridge guide horn antenna, custom made and similar to Diamond Engineering model DE0530 Broadband Reference Horn Antenna 18 to 40 GHz Double ridge guide horn by Q-par, model WBH18-40K Source Horn 300 MHz to 6 GHz Fei Teng Wireless Technology Co Model HR-03M06G01-NF Source Horn 1.5 to 18 GHz EDO model AS-48461 Source Horn 18 to 40 GHz A-INFOMW p/n LB-SJ-180400 Other RF Hardware All other items such as cables and LNAs in the test chain are simply "normalized" as part of the reference-antenna substitution process, and are not relevant to measurement accuracy Contact Us All antennas are evaluated by Glenn Robb of Antenna Test Lab Co, located at 2210 E Millbrook Rd, STE 113, Raleigh NC, 27604. [email protected] Tel: +1 919 200-0292
| # | Rule Parts | Frequency Range | Power Output |
|---|---|---|---|
| 1 | 15C | 2.40 GHz - 2.48 GHz | 2.50 mW |
3M Peltor Multi-Comm Push-To-Talk Adapter
Equipment Class
DTS - Digital Transmission SystemHearing protection with two-way radio headset
Equipment Class
DXX - Part 15 Low Power Communication Device TransmitterWS ALERT XPV Headset
Equipment Class
DSS - Part 15 Spread Spectrum Transmitter
WS Alert X, XP, XPI and XPV
Equipment Class
JBP - Part 15 Class B Computing Device Peripheral
Litecom Plus Headset
Equipment Class
FRE - Part 95 Family Radio Ear Held Transmitter