Cover Letter

FCC ID: EOA-24MFA

Cover Letter(s)

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FCCID_4171004

S k 6600 Washington Avenue S. ta r ey. Eden Prairie, Minnesota 55344 Hearing Technologies T: 1.800.328.8602 www.starkey.com January 11, 2019 Federal Communications Commission 445 12th Street SW Washington, DC 20554 Attention: Application Examiner Reference: Certification: Part 15.247 Intentional Radiator Applicant: Starkey Laboratories, Inc. Equipment: Low Power Device (2400—2483.5 MHz) Model #: 900 FCC ID: EOA—24MFA Dear Sir/Madam: Enclosed please find a Part 15.247 Class 2 permissive change application for our EOA—24MFA certification. This device is a remote microphone and Bluetooth Gateway for our 2.4 GHz wireless hearing aids that uses the Classic Bluetooth and Bluetooth Low Energy protocols. The change consists of adding 3 capacitors between the digital and analog ground plane, as shown in the submitted schematic. In addition, the values of two capacitors in the matching network are both changed to better match the antenna to the Classic Bluetooth radio IC. No changes have been made to the Classic Bluetooth radio IC, the antenna itself, or any other RF components besides what is listed here. No changes have been made at all to any Bluetooth Low Energy RF components, the Bluetooth Low Energy antenna, or circuit layout. The peak Classic Bluetooth antenna gain has changed from —5.75 to —3.25 dBi, an increase of around 2.50dB. Further details and supporting documents are attached. Should you have any questions, please feel free to contact the undersigned. Sincerely, TteJercket William J. Mitchéll, PE Principal Regulatory Affairs Engineer 952—918—5683 bill_mitchell@starkey.com


Document Created: 2019-01-11 07:31:32
Document Modified: 2019-01-11 07:31:32
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