test report

FCC ID: JFZR310

Test Report

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FCCID_355606

$TABLE OF CONTENTS LIST APPLICANT: AUDIO TECHNICA CORPORATION FCC ID: JFZR310 TEST REPORT CONTAINING: PAGE 1...............TEST EQUIPMENT LIST PAGE 2...............TEST PROCEDURES PAGE 3...............RADIATION INTERFERENCE TEST DATA EXHIBITS CONTAINING: EXHIBIT 1............LETTER REQUESTING PERMISSIVE CHANGE EXHIBIT 2............REQUEST FOR CONFIDENTIALITY LETTER EXHIBIT 3............SCHEMATIC EXHIBIT 4............INTERNAL PHOTOGRAPHS EXHIBIT 5............TEST SET UP PHOTO APPLICANT: AUDIO TECHNICA CORPORATION FCC ID: JFZR310 REPORT #: A\AudioTechnica_JFZ\1208UT3\1208UT3TestReport.doc TABLE OF CONTENTS LIST$

$TEST EQUIPMENT LIST Device Manufacturer Model Serial Cal/Char Due Date Number Date 3/10-Meter TEI N/A N/A Listed 3/26/04 OATS 3/26/01 3-Meter OATS TEI N/A N/A Listed 1/13/06 1/13/03 Blue Tower HP 85650A 2811A01279 CAL 4/15/03 4/15/05 Quasi-Peak Adapter Blue Tower HP 85685A 2926A00983 CAL 4/15/03 4/15/05 RF Preselector Blue Tower HP 8568B 2928A04729 CAL 4/15/03 4/15/05 Spectrum 2848A18049 Analyzer LISN Electro- ANS-25/2 2604 CAL 10/9/01 10/9/03 Metrics LISN Electro- EM-7820 2682 CAL 3/12/03 3/12/05 Metrics Log-Periodic Eaton 96005 1243 CAL 5/8/03 5/8/05 Antenna Log-Periodic Electro- EM-6950 632 CHAR 10/15/03 Antenna Metrics 10/15/01 Log-Periodic Electro- LPA-25 1122 CAL 10/2/01 10/2/03 Antenna Metrics Log-Periodic Electro- LPA-30 409 CAL 3/4/03 3/4/05 Antenna Metrics Silver Tower HP 8449B 3008A01075 CHAR 1/28/04 Preamplifier 1/28/02 Silver Tower HP 85650A 3303A01844 CAL 10/14/04 Quasi-Peak 10/14/02 Adapter Silver Tower HP 85685A 2620A00294 CAL 10/14/04 RF 10/14/02 Preselector Silver Tower HP 8566B Opt 3552A22064 CAL 10/14/04 Spectrum 462 3638A08608 10/14/02 Analyzer Tan Tower HP 8449B-H02 3008A00372 CHAR 3/4/01 3/4/03 Preamplifier Tan Tower HP 85650A 3303A01690 CAL 8/31/01 8/31/03 Quasi-Peak Adapter Tan Tower RF HP 85685A 3221A01400 CAL 8/31/01 8/31/03 Preselector Tan Tower HP 8566B Opt 3138A07786 CAL 8/31/01 8/31/03 Spectrum 462 3144A20661 Analyzer APPLICANT: AUDIO TECHNICA CORPORATION FCC ID: JFZR310 REPORT #: A\AudioTechnica_JFZ\1208UT3\1208UT3TestReport.doc Page 1 of 3$

$TEST PROCEDURE GENERAL: This report shall NOT be reproduced except in full without the written approval of TIMCO ENGINEERING, INC. RADIATION INTERFERENCE: The test procedure used was ANSI STANDARD C63.4-1992 using a HEWLETT PACKARD spectrum analyzer with a preselector. The bandwidth of the spectrum analyzer was 100 kHZ with an appropriate sweep speed. The analyzer was calibrated in dB above a microvolt at the output of the antenna. The resolution bandwidth was 100KHZ and the video bandwidth was 300KHZ. The ambient temperature of the UUT was 80ºF with a humidity of 70%. FORMULA OF CONVERSION FACTORS: The Field Strength at 3m was established by adding the meter reading of the spectrum analyzer (which is set to read in units of dBuV) to the antenna correction factor supplied by the antenna manufacturer. The antenna correction factors are stated in terms of dB. The gain of the Preselector was accounted for in the Spectrum Analyzer Meter Reading. Example: Freq (MHz) METER READING + ACF = FS 33 20 dBuV + 10.36 dB = 30.36 dBuV/m @ 3m ANSI STANDARD C63.4-1992 10.1.7 MEASUREMENT PROCEDURES: The unit under test was placed on a table 80 cm high and with dimensions of 1m by 1.5m. The table used for radiated measurements is capable of continuous rotation. When an emission was found, the table was rotated to produce the maximum signal strength. At this point, the antenna was raised and lowered from 1m to 4m. The antenna was placed in both the horizontal and vertical planes. APPLICANT: AUDIO TECHNICA CORPORATION FCC ID: JFZR310 REPORT #: A\AudioTechnica_JFZ\1208UT3\1208UT3TestReport.doc Page 2 of 3$

$APPLICANT: AUDIO TECHNICA CORPORATION FCC ID: JFZR310 NAME OF TEST: RADIATION INTERFERENCE RULES PART NO.: 15.109 REQUIREMENTS: 30 to 88 MHz: 40.0 dBuV/M @ 3 METERS 88 to 216 MHz: 43.5 dBuV/M 216 to 960 MHz: 46.0 dBuV/M ABOVE 960 MHz: 54.0 dBuV/M TEST RESULTS: A search was made of the spectrum from 30 to 1000MHz and the measurements indicate that the unit DOES meet the FCC requirements. TEST DATA: Tuned Emission Meter Ant. Coax Correction Field Margin Frequency Frequency Reading Polarity Loss Factor Strength dB MHz MHz dBuV dB dB dBuV/m 655.5 570.10 10.1 H 3.31 19.50 32.91 13.09 655.5 570.10 10.1 V 3.31 18.80 32.21 13.79 655.5 1,140.20 17.5 H 2.10 25.68 45.28 8.72 668.0 582.60 10.3 V 3.35 19.00 32.65 13.35 668.0 582.60 13.6 H 3.35 19.55 36.50 9.50 668.0 1,165.20 17.7 H 2.12 25.76 45.58 8.42 680.3 595.00 9.8 V 3.39 19.00 32.19 13.82 680.3 595.00 12.1 H 3.39 19.70 35.19 10.82 680.3 1,190.00 17.6 H 2.15 25.85 45.60 8.40 SAMPLE CALCULATION: FSdBuV/m = MR (dBuV) + ACFdB. TEST PROCEDURE: ANSI STANDARD C63.4-1992 using a Hewlett Packard Model 8566B spectrum analyzer, a Hewlett Packard Model 85685A Preselector, a Hewlett Packard Model 85650A Quasi-Peak adapter, and an appropriate antenna – see the test equipment list. The bandwidth of spectrum analyzer was 100 kHz with an appropriate sweep speed. When an emission was found, the table was rotated to produce the maximum signal strength. The antenna was placed in both the horizontal and vertical planes and the worse case emissions were reported. PERFORMED BY: JOSEPH SCOGLIO DATE: 8/27/2003 APPLICANT: AUDIO TECHNICA CORPORATION FCC ID: JFZR310 REPORT #: A\AudioTechnica_JFZ\1208UT3\1208UT3TestReport.doc Page 3 of 3$

Document Created: 2003-09-05 14:33:19
Document Modified: 2003-09-05 14:33:19