LFFSPCCCrewComm Team Radio communications system

THE EMC COMPLIANCE CENTER 12 East Devonwood SOLVING A WAVE OF EMI COMPLIANCE PROBLEMS Romeoville, IL 60446 April 26, 2010 Tel: (815) 293-0772 Page 1 of 1 Fax: (815) 293-0820 Federal Communications Commission RP-6721 Authorization and Evaluation Division 7435 Oakland Mills Rd. Columbia, MD 21046 Reference FCC ID: LFFSPCC Organization: Ultra-UnderSea Sensor Systems, Inc. Subject: Confidentiality Request regarding application for certification. In accordance with Sections 0.457 and 0.459 of the Commission’s Rules, Ultra Electronics -UnderSea Sensor Systems, Inc. hereby requests Permanent confidential treatment of information accompanying this application as outlined below: • Detailed Circuit Schematics • Block Diagram The above materials contain proprietary and confidential information not customarily released to the public. The public disclosure of these materials provides unjustified benefits to its competitors in the market. Authorized Signature Date: 04/20/2010 Joseph Strzelecki Senior EMC Engineer Radiometrics Midwest Corporation Authorized Agent for Ultra-UnderSea Sensor Systems, Inc.

Authorized Agent: Radiometrics Midwest Corporation (815) 293-0772 – [email protected] External EUT Photographs Front of EUT Authorized Agent: Radiometrics Midwest Corporation (815) 293-0772 – [email protected] Back of EUT Top of EUT: Antenna removed Authorized Agent: Radiometrics Midwest Corporation (815) 293-0772 – [email protected] Bottom of EUT Side of EUT

Authorized Agent: Radiometrics Midwest Corporation (815) 293-0772 – [email protected] EUT Label The label is engraved on the back of the radio.

Authorized Agent: Radiometrics Midwest Corporation (815) 293-0772 – [email protected] Internal EUT Photographs EUT rear cover removed Inside Front Cover Authorized Agent: Radiometrics Midwest Corporation (815) 293-0772 – [email protected] Inside Back Cover of EUT Battery Compartment of EUT Authorized Agent: Radiometrics Midwest Corporation (815) 293-0772 – [email protected] EUT Processor Board Component Side Authorized Agent: Radiometrics Midwest Corporation (815) 293-0772 – [email protected] EUT Processor Board: Shields Removed EUT Processor Board Foil Side

Radiometrics Midwest Corporation (815) 293-0772 – www.radiomet.com Page 1 of 30 Electromagnetic Compatibility Test Report Tests Performed on an Ultra Electronics USSI Lapel Microphone with Integrated Team Radio, Model 90088A Radiometrics Document RP-6721 Product Detail: FCC ID: LFFSPCC IC: 6253A-SPCC Equipment type: 2.4 GHz and 900 MHz Digital transmission system. Test Standards: US CFR Title 47, Chapter I, FCC Part 15 Subpart C FCC Part 15 CFR Title 47: 2008 Industry Canada RSS-210, Issue 7: 2007 as required for Category I Equipment This report concerns: Original Grant for Certification FCC Part 15.247 Tests Performed For: Test Facility: Ultra Electronics UnderSea Sensor Systems, Inc. 4758 E. Park 30 Dr. Columbia City, IN 46725 Radiometrics Midwest Corporation 12 East Devonwood Romeoville, IL 60446 Test Date(s): (Month-Day-Year) April 2 to 16, 2010 Document RP-6721 Revisions: Rev. Issue Date Affected Pages Revised By 0 April 26, 2010 1 April 27, 2010 1 Joseph Strzelecki RADIOMETRICS MIDWEST CORPORATION - EMC Test Report Testing of the USSI, Model 90088A, LM Transmitter RP-6721 Rev. 1 Page 2 of 30 Table of Contents 1 ADMINISTRATIVE DATA ....................................................................................................................3 2 TEST SUMMARY AND RESULTS ......................................................................................................3 2.1 RF Exposure Compliance Requirements ......................................................................................4 3 EQUIPMENT UNDER TEST (EUT) DETAILS .....................................................................................4 3.1 EUT Description ............................................................................................................................4 3.1.1 FCC Section 15.203 & RSS-GEN Antenna Requirements.....................................................4 3.2 Related Submittals ........................................................................................................................4 4 TESTED SYSTEM DETAILS ...............................................................................................................5 4.1 Tested System Configuration........................................................................................................5 4.2 Special Accessories ......................................................................................................................5 4.3 Equipment Modifications ...............................................................................................................5 5 TEST SPECIFICATIONS AND RELATED DOCUMENTS ..................................................................5 6 RADIOMETRICS’ TEST FACILITIES ..................................................................................................6 7 DEVIATIONS AND EXCLUSIONS FROM THE TEST SPECIFICATIONS .........................................6 8 CERTIFICATION .................................................................................................................................6 9 TEST EQUIPMENT TABLE.................................................................................................................6 10 TEST SECTIONS ..............................................................................................................................7 10.1 Occupied Bandwidth ...................................................................................................................7 10.1.1 900 MHz Results ..................................................................................................................8 10.1.2 2.4 GHz Results .................................................................................................................11 10.2 Peak Output Power ...................................................................................................................14 10.2.1 900 MHz Results ................................................................................................................14 10.2.2 2.4 GHz Results .................................................................................................................14 10.3 Power Spectral Density.............................................................................................................15 10.3.1 900 MHz Results ................................................................................................................15 10.3.2 2.4 GHz Results .................................................................................................................15 10.4 Band-edge Compliance of RF Conducted Emissions ...............................................................15 10.4.1 900 MHz Results ................................................................................................................16 10.4.2 2.4 GHz Results .................................................................................................................17 10.5 Spurious RF Conducted Emissions ..........................................................................................18 10.5.1 900 MHz Results ................................................................................................................18 10.5.2 2.4 GHz Results .................................................................................................................22 10.6 Spurious Radiated Emissions ...................................................................................................23 10.6.1 Radiated Emissions Field Strength Sample Calculation ....................................................24 10.6.2 Spurious Radiated Emissions Test Results........................................................................25 10.6.3 900 MHz Results ................................................................................................................26 10.6.4 2.4 GHz Results .......................…

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Authorized Agent: Radiometrics Midwest Corporation (815) 293-0772 – [email protected] Test Setup Photographs Photographs of Radiated Emissions Test Setup Authorized Agent: Radiometrics Midwest Corporation (815) 293-0772 – [email protected] Authorized Agent: Radiometrics Midwest Corporation (815) 293-0772 – [email protected] Photographs of Spurious Emissions Test Setup for 900 MHz radio