DD4QLXD1L50Licensed Non-Broadcast Transmitter Worn on Body

March 13, 2014 Elite Electronic Engineering, Inc. 1516 Centre Circle Downers Grove, Illinois 60515-1082 SUBJECT: REQUEST FOR NON-DISCLOSURE FOR FCC ID: DD4QLXD1L50 To Whom It May Concern: Pursuant to 47 CFR Section 0.459, Shure Incorporated hereby requests non-disclosure and confidential treatment of the following materials submitted in support of FCC certification application for FCC ID # DD4QLXD1L50: a. Schematic Diagrams b. Operational Description c. Block Diagram d. Parts List e. Tune Up Procedure Above materials contain trade secrets, proprietary and technical information which would customarily be guarded from competitors under 47 CFR section 0.457(d)(2). Disclosure or publication of any portion of this company confidential material to other parties could cause substantial competitive harm and provide unjustified benefits for competitors. Shure Incorporated understands that pursuant to 47 CFR section 0.457(d)(1)(ii) disclosure of the applicant and all accompanying documentation will not be made before the date of the grant. Sincerely yours, Craig Kozokar EMC Project Engineer, Global Compliance Shure Incorporated

March 13, 2014 Elite Electronic Engineering, Inc. 1516 Centre Circle Downers Grove, Illinois 60515-1082 SUBJECT: REQUEST FOR SHORT TERM CONFIDENTIALITY FOR FCC ID: DD4QLXD1L50 To Whom It May Concern: Pursuant to DA 04-1705 of the Commission’s public notice, in order to comply with the marketing regulations in 47CFR §2.803 and the importation rules in 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, Shure Incorporated is hereby requesting the commission to grant short-term confidentiality request on the following attachments until May 20, 2014 for FCC ID # DD4QLXD1L50: 1. Internal Photographs 2. External Photographs 3. Test Setup Photographs 4. User’s Manual Sincerely yours, Craig Kozokar EMC Project Engineer, Global Compliance Shure Incorporated

March 20, 2014 Dan Crowder Elite Electronic Engineering Inc. 1516 Centre Circle Downers Grove, Illinois 60515-1082 Subject: QLXD1 and QLXD2 SAR Exclusion Dear Mr. Crowder This letter is to confirm that the Shure QLXD1 and QLXD2 wireless microphone transmitters meet the standalone SAR test exclusion considerations as described in Paragraph 4.3.1 of FCC KDB 447498, based on the specified calculation: [max. power of channel, mW] / [min. test separation distance, mm] x ඥ ݂ ሺீு௭ሻ ≤ 3 For QLXD1 and QLXD2, [10 mW] / [5 mm] x √ 0.696 = 1.7 ≤ 3 Where max. power = 10 mW min test separation distance = 5 mm max. frequency = 696 MHz Sincerely, Craig Kozokar EMC Project Engineer, Global Compliance Shure Incorporated

April 8, 2014 Daniel E. Crowder Elite Electronic Engineering Inc. 1516 Centre Circle Downers Grove, IL 60515-1082 Dear Mr. Crowder: The Shure Electromagnetic Compatibility Laboratory (SEL) performed a series of tests on the QLXD1 and QLXD2 transmitters to determine compliance with the requirements of Federal Communications Commission (FCC) Part 74H and Industry Canada (IC) RSS-123. The results of those tests are published in two reports, SEL-015A1 and SEL-015A2. Upon review, it was discovered that occupied-bandwidth (OBW) emission masks shown on some figures in Appendix C of both documents are incorrect. In those figures showing the signal trace for 1mW output power, the portion of the mask removed from the carrier frequency by more than 250% is incorrectly plotted, giving a limit approximately 10dB more severe than that specified by the relationships given in FCC Part 74.861 and IC RSS-123, section 5. SEL has determined that this was brought about by a limitation in the test instrument. A review of the OBW data in the affected figures confirms that the compliance of QLXD1 and QLXD2 is not in question, and in fact both enjoy greater compliance margin than shown. Steps are being taken to correct the mask overlay for future tests. Thank you for your assistance. Sincerely, Craig Kozokar EMC Project Engineer, Global Compliance Shure Incorporated