DMOAC3200A2Antenna Combiner

CONFIDENTIALITY REQUEST Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 December 02, 2011 TO WHOM IT MAY 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, Company requests confidentiality for the following products: FCC ID Number Product Title/Model DMOAC3200A2 AC 3200-II For the product stated above, we request that the following information be held confidential: 1. Circuit diagrams, BOM, and PCBs submitted as Equipment Authorization Electronic Filing attachment: "schematics”. 2. Block diagram submitted as Equipment Authorization Electronic Filing attachment: “blockdiagram”. 3. Operational description submitted as Equipment Authorization Electronic Filing attachment: “operational description” 4. Tune Up Info submitted as Equipment Authorization Electronic Filing attachment: “tune up info” The above exhibits contain Company trade secrets and proprietary information that could be of benefit to our competitors regarding the design of our mobile handset. This material is not customarily available to the general public and we request that it be withheld from public inspection. If you have any questions, please feel free to contact me at the address shown below. Sincerely, Name: Volker Bartsch Company: Sennheiser electronic Address: Am Labor 1 D-30900 Wedemark (Germany) Phone: 49-5130-600-465 Email: [email protected]

Test report no.: 1-3458-01-03/11-B 2011-12-07 Page 33 of 41 Annex B External photographs of the EUT Photo documentation Photo 5: Test report no.: 1-3458-01-03/11-B 2011-12-07 Page 34 of 41 Photo 6: Photo 7: Test report no.: 1-3458-01-03/11-B 2011-12-07 Page 35 of 41 Photo 8: Photo 9: Test report no.: 1-3458-01-03/11-B 2011-12-07 Page 36 of 41 Photo 10: Photo 11:

AC 3200-II Combiner 8:1 Art. No.: 505497 Ser. No.: XXXXXXXXXX FCC-ID:DMOAC3200A2 Model: AC 3200-II IC:2099A-AC3200A2 Freq. Range: 500-870MHz Made in Germany 65 mm x 17 mm Label Location Info AC 3200-II

Test report no.: 1-3458-01-03/11-B 2011-12-07 Page 37 of 41 Annex C Internal photographs of the EUT Photo documentation Photo 12: Test report no.: 1-3458-01-03/11-B 2011-12-07 Page 38 of 41 Photo 13: Photo 14: Test report no.: 1-3458-01-03/11-B 2011-12-07 Page 39 of 41 Photo 15: Photo 16: Test report no.: 1-3458-01-03/11-B 2011-12-07 Page 40 of 41 Photo 17:

2011-12-07 Page 1 of 41 TEST REPORT Test report no.: 1-3458-01-03/11-B Testing laboratory Applicant CETECOM ICT Services GmbH Untertuerkheimer Strasse 6 – 10 66117 Saarbruecken / Germany Phone: + 49 681 5 98 - 0 Fax: + 49 681 5 98 - 9075 Internet: http://www.cetecom.com e-mail: [email protected] Accredited test laboratory: The test laboratory (area of testing) is accredited according to DIN EN ISO/IEC 17025 DAkkS registration number: D-PL-12076-01-01 Area of Testing: Radio/Satellite Communications Sennheiser electronic GmbH & Co. KG Am Labor 1 30900 Wedemark / GERMANY Phone: +49 5130 600-0 Fax: +49 5130 600-574 Contact: Volker Bartsch e-mail: [email protected] Phone: +49 5130 600-465 Manufacturer Sennheiser electronic GmbH & Co. KG Am Labor 1 30900 Wedemark / GERMANY Test standard/s 47 CFR Part 74 Title 47 of the Code of Federal Regulations; Chapter I Experimental radio, auxiliary, special broadcast and other program distribution services RSS - 123 Issue 1 Rev. 2 Spectrum Management and Telecommunications Policy - Radio Standards Specification Low Power Licensed Radiocommunication Devices For further applied test standards please refer to section 3 of this test report. Test item Kind of test item: active antenna combiner Model name: AC3200-II FCC ID: DMOAC3200A2 IC: 2099A-AC3200A2 Frequency: 500 MHz – 870 MHz Power supply: 110 V AC Temperature range: 24°C This test report is electronically signed and valid without handwriting signature. For verification of the electronic signatures, the public keys can be requested at the testing laboratory. Test performed: Test report authorised: Jakob Reschke Michael Berg Test report no.: 1-3458-01-03/11-B 2011-12-07 Page 2 of 41 1 Table of contents 1 Table of contents ............................................................................................................................................ 2 2 General information ....................................................................................................................................... 3 2.1 Notes ..................................................................................................................................................... 3 2.2 Application details ............................................................................................................................... 3 3 Test standard/s ............................................................................................................................................... 3 4 Test environment ............................................................................................................................................ 3 5 Test item .......................................................................................................................................................... 4 6 Test laboratories sub-contracted ................................................................................................................. 4 7 Summary of measurement results ............................................................................................................... 5 7.1 RSP100 test report cover sheet / performance test data ................................................................ 7 8 RF measurement testing ............................................................................................................................... 8 8.1 Description of test setup .................................................................................................................... 8 8.1.1 Radiated measurements............................................................................................................. 8 8.1.2 Conducted measurements.......................................................................................................... 9 8.2 Additional comments ........................................................................................................................ 10 9 Measurement results .................................................................................................................................... 11 9.1 Output power ..................................................................................................................................... 11 9.2 Frequency stability ............................................................................................................................ 12 9.2.1 Frequency error vs. temperature .............................................................................................. 12 9.2.2 Frequency error vs. voltage ...................................................................................................... 12 9.3 Modulation characteristics ............................................................................................................... 12 9.4 Occupied bandwidth ......................................................................................................................... 13 9.5 Unwanted radiation (spectrum mask) ............................................................................................. 14 9.6 Field strength of spurious radiation ................................................................................................ 15 9.7 Transmitter unwanted emissions (conducted) ............................................................................... 18 9.8 Receiver spurious emissions (radiated) ......................................................................................... 20 9.9 Receiver spurious emissions (conducted) ..................................................................................... 23 9.10 Spurious emissions conducted < 30 MHz ................................................................................... 25 10 Test equipment and ancillaries used for tests ................................................................................... 27 Annex A Photog…

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