JFZT1000CLICENSED BROADCAST TRANSMITTER

AUDIO TECHNICA MODEL AEW-5200, AEW-4100 SERIES UHF WIRELESS SYSTEM USER INFORMATION. INTRODUCTION Thank you for purchasing the AEW-5200, AEW-4100 series wireless system. It is our hope that the system will bring you years of trouble free pleasure and performance. Please follow the information contained in this manual closely as it will assist you in using your equipment effectively. PART1. REGULATORY REQUIREMENTS. FCC PART 15 COMPLIANCE STATEMENT CANADA RSS-210 COMPLIANCE STATEMENT “This device complies with Part 15 of the FCC rules. Operation is subject to the condition that this device does not cause harmful interference” “This device complies with INDUSTRY CANADA R.S.S. 210, en confomite avec IC: RSS-210/CNR210. Operation is subject to the following conditions: (1) This device may not cause harmful interference and (2) This device must accept any interference received, including interference which may cause undesired operation.” Please note that your AEW-5200, AEW-4100 systems operates in a frequency band in a way which may make its use subject to certain FCC and other regulatory agency restrictions and licensing requirements. For further information, Please contact your local office of the FCC as applicable. NOTE: THE MANUFACTURER IS NOT RESPONSIBLE FOR ANY RADIO OR TV INTERFERENCE CAUSED BY UNAUTHORIZED MODIFICATIONS TO THIS EQUIPMENT. SUCH MODIFICATIONS COULD VOID THE USER'S AUTHORITY TO OPERATE THE EQUIPMENT. PART 2. USING THE AEW-T1000 BELTPACK TRANSMITTER The beltpack transmitter operates on 2 “AA” batteries. Please make sure that your batteries are fresh. We recommend that you use Alkaline batteries and that you avoid using NiCad if possible. Open the battery door by slide door lock towards arrow direction and lift door. Insert two batteries into the battery compartment and close the battery door Slides the LCD set up buttons cover down to bottom Push and hold the power switch and turn the AEW-T1000 on Push the set button once Using up or down arrow buttons and scrolls the menu until frequency menu appeared. If current frequency setup appeared on the LCD is not the same as corresponding receiver frequency, push set button once. Push down or up arrow button and set frequency to the corresponding frequency as set on receiver. Push and hold set button until word “Stored” displayed in a while. Push up or down arrow button and scrolls the menu until input menu (MIC or INSTRUMENT) appeared. If current input setup appeared on LCD screen is not correct, push set button once Using up or down arrow button to select input. Push and hold set button until word “Stored” displayed in a while. Connect your microphone or guitar cable to the connector on the top of the transmitter. Confirm that the receiver is receiving RF and the audio is passing through the receiver. Push up or down arrow button and scrolls the menu until “ESCAPE” appeared. Push the set button once to return default menu. You are now ready to use the system. PART 3. USING THE AEW-T5000SERIES HANDHELD TRANSMITTER AEW-T5000 transmitter family is as follows: AEW-T5400 AEW-T3300 AEW-T6100 AEW-T4100 The handheld transmitter operates on 2 “AA” batteries. Please make sure that your batteries are fresh. We recommend that you use Alkaline batteries and that you avoid using NiCad if possible. Hold the bottom grip and turn the top grip counter clockwise until bottom grip free to slide. Slide the bottom grip, insert two batteries into the battery compartment and slide the battery compartment back into place. To change the frequency of operation, push and hold the power /mute button located on bottom of the transmitter to turn it on. Unscrew the battery cover and pull the cover back. Push the set button once Using up or down arrow button and scrolls the menu until frequency menu appeared. Push the set button once. Push down or up arrow button and set frequency to the corresponding frequency as set on receiver. Push and hold set button until word “Stored” displayed in a while. Push up or down arrow button and scrolls the menu until “ESCAPE” appeared Push the set button once to return default menu You are now set to use the system. PART4. USING THE AEW-R5200, AEW-R4100 RECEIVERS Plug the IEC plug on the AC cable to the AC inlet on back of the receiver. Plug the 3-pin AC plug on AC cable to an 110V AC outlet. Connect two antennas to the antenna input on back of the receiver. Push the Power switch. Confirm that the backlight on LCD screen comes on. Check the frequency setting to confirm that they correspond to the settings of the transmitter If not, push set button once to display “FREQ” on top line of the LCD. Push set button once and check that “EDIT” displayed on bottom line of LCD brink. Push up or down arrow button to set receiver frequency to corresponding transmitter frequency. Push and hold set button until “STORED” displayed in a while. Push up or down arrow button to display “QUIT” Push Set button once to back in to Default menu. Connect the balanced or unbalanced audio output to your mixer or PA system. Adjust the Volume setting to the desired level. Speak into the microphone and listen to the audio out at the speaker. If satisfied with the audio quality, you ca uses the system.

Audio-Technica U.S., Inc. 1221 Commerce Drive Phone: 330-686-2600 [email protected] Stow, OH 44224-1760 Fax: 330-688-3752 January 26, 2004 Equipment Authorization Division Office of Engineering and Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Ref: FCC ID: JFZT1000C Request for Confidentiality Dear Sirs: With regard to the referenced application, Audio Technica, is requesting confidentiality of certain sections of the accompanying documents. The documents for which Audio Technica is requesting confidentiality are: Schematic for AEW-T1000C wireless transmitter Block diagram for AEW-T1000C wireless transmitter Circuit description for AEW-T1000C wireless transmitter This request is made under the provisions of Section 0.457(d) of the Commission’s Rules, and Section 552(b)(4) of the Freedom of Information Act. The material for which confidentiality is requested falls within the scope of Section 552(b)(4) as trade secrets and includes material covered by Section 0.459 of the Commission’s Rules. Sincerely, Jacquelynn Green Vice President R&D Audio-Technica U.S., Inc.

MODEL : AEW - T1000 FREQ. : 54 1 - 566MHz FCC ID : JFZT1000C IC : 1752B - AEW5000C BATT : LR6, AA2 Audio-Technica Corp. MADE IN JAPAN S=1/1

ATW-T1000-554M Transmitter Electronic Parts List INTEGRATED CIRCUIT Ref,No Parts Name PackageNote IC1 DREAMT-1 SMT 64pin IC101 NJM2068MD SMT 8pin IC102 SA572D SMT 16pin IC201 MB8916X SMT 80pin IC202 XC61CN4002NR SMT 5pin IC203 NJU6366DF SMT 6pin IC204 S-93C46AMFN SMT 8pin IC301 MB1511PFV SMT 16pin IC51 XC61CN4002NR SMT 4pin IC501 LTC3401EMS SMT 10pin DISPLAY Ref,No Parts Name PackageNote TX-LCD TRANSISTOR Ref,No Parts Name PackageNote Q1 UPA604T SMT 6pin Q301 2SC4738Y SMT 3pin Q351 2SC5226 SMT 3pin Q352 DTA114YE SMT 3pin Q353 DTA114YE SMT 3pin Q354 2SC5226 SMT 3pin Q355 DTA114YE SMT 3pin Q356 2SA1745 SMT 3pin Q501 2SC4738Y SMT 3pin Q502 CPH3106 SMT 3pin Q601 2SC3324 SMT 3pin DIODES & LED Ref,No Parts Name PackageNote D1 NNCD6.2C SMT 2pin D2 NNCD6.2C SMT 2pin D3 NNCD6.2C SMT 2pin D4 NNCD6.2C SMT 2pin D5 NNCD12C SMT 2pin D6 HSC119 SMT 2pin D8 NNCD6.2C SMT 2pin D52 NNCD6.2C SMT 2pin D53 NNCD6.2C SMT 2pin D15 SLC-9D126A SMT 2pin D101 1SS302 SMT 3pin D102 1SS302 SMT 3pin D103 NNCD12C SMT 2pin D201 NNCD6.2C SMT 2pin D202 NNCD6.2C SMT 2pin D203 NNCD6.2C SMT 2pin D204 NNCD6.2C SMT 2pin D206 NNCD6.2C SMT 2pin D207 MVL-314URH LEAD 2pin D208 NNCD6.2C SMT 2pin D301 NNCD6.2C SMT 2pin D302 HSC119 SMT 2pin D501 NNCD6.2C SMT 2pin D502 NNCD6.2C SMT 2pin D503 DCG010 SMT 3pin D504 NNCD6.2C SMT 2pin D505 NNCD6.2C SMT 2pin D506 DCG010 SMT 2pin D507 SL12(SBD) SMT 2pin D508 HRC0103ATRF SMT 2pin D509 HRC0103ATRF SMT 2pin INDUCTOR & COIL Ref,No Parts Name PackageNote L1 1uH SMT 2pin L2 1uH SMT 2pin L3 1uH SMT 2pin L4 1uH SMT 2pin L5 2.2uH SMT 2pin L7 2.2uH SMT 2pin L8 2.2uH SMT 2pin L9 10mH SMT 2pin L51 2.2uH SMT 2pin L101 2.2uH SMT 2pin L102 2.2uH SMT 2pin L201 2.2uH SMT 2pin L301 1uH SMT 2pin L351 4.7nH SMT 2pin L352 12nH SMT 2pin L353 10nH SMT 2pin L354 8.2nH SMT 2pin L355 12nH SMT 2pin L356 4.7nH SMT 2pin L357 15nH SMT 2pin L358 18nH SMT 2pin L359 18nH SMT 2pin L360 12nH SMT 2pin L501 10uH SMT 2pin L502 10uH SMT 2pin L503 10uH SMT 2pin SWITCH Ref,No Parts Name PackageNote SW201 SKQYPCE010 SMT 2pin SW202 SKQYPCE010 SMT 2pin SW203 SKQYPCE010 SMT 2pin SW501 SKQYPCE010 SMT 2pin VARIABLE CAPACITOR Ref,No Parts Name PackageNote TC201 TC13C100C-TP03 SMT 2pin CRYSTAL Ref,No Parts Name PackageNote X201 HC49US 9.000MHz LEAD 2pin V C O Ref,No Parts Name PackageNote VCO301 554M SMT JACK PLUG & CONNECTOR Ref,No Parts Name PackageNote CN1 52024-1710 LEAD CN2 53022-1710 SMT CN3 DF13B-4P1.25V LEAD CN352 LPC-3T1M LEAD CN351 MM7329-2000 SMT POTENTIOMETER Ref,No Parts Name PackageNote VR1 RH02B1C103 SMT 3pin VR51 RH02B1C104 SMT 3pin VR201 RH02B1C474 SMT 3pin VR351 RH02B1C223 SMT 3pin VR352 RH02B1C104 SMT 3pin CAPACITOR Ref,No Parts Name PackageNote C1 0.01uF/16V SMT Ceramic C2 10uF/16V SMT Tantalum C3 0.1uF/16V SMT Film C4 0.01uF/16V SMT Ceramic C5 0.68uF/16V SMT Tantalum C6 0.68uF/16V SMT Tantalum C7 4.7uF/10V SMT Tantalum C9 2.2uF/10V SMT Tantalum C10 1uF/16V SMT Tantalum C11 2.2uF/10V SMT Tantalum C18 10uF/6.3V SMT Tantalum C19 0.01uF/16V SMT Ceramic C23 0.01uF/16V SMT Film C24 220p SMT Ceramic C25 2.2uF/10V SMT Tantalum C26 1000p(1608) SMT Ceramic C27 680p SMT Ceramic C28 82p SMT Ceramic C29 2.2uF/10V SMT Tantalum C30 0.01uF/16V SMT Ceramic C31 10uF/6.3V SMT Tantalum C36 2200p SMT Ceramic C51 4.7uF/10V SMT Tantalum C52 0.01uF/16V SMT Ceramic C53 10uF/6.3V SMT Tantalum C54 470p SMT Ceramic C55 2200p SMT Ceramic C56 2.2uF/10V SMT Tantalum C101 4.7uF/10V SMT Tantalum C102 10uF/6.3V SMT Tantalum C103 39p SMT Ceramic C104 220p SMT Ceramic C105 10uF/6.3V SMT Tantalum C106 0.1uF/16V SMT Ceramic C107 4700p SMT Ceramic C108 2.2uF/10V SMT Tantalum C109 1uF/10V SMT Tantalum C110 4.7uF/10V SMT Tantalum C111 0.47uF/16V SMT Tantalum C112 0.047uF/16V SMT Film C113 0.1uF/16V SMT Film C115 0.1uF/16V SMT Film C116 2.2uF/10V SMT Tantalum C117 0.47uF/16V SMT Tantalum C118 0.01uF/16V SMT Ceramic C119 0.01uF/16V SMT Ceramic C120 10uF/16V SMT Tantalum C121 0.01uF/16V SMT Ceramic C122 1uF/16V SMT Tantalum C123 1uF/16V SMT Tantalum C201 0.01uF/16V SMT Tantalum C202 10uF/6.3V SMT Tantalum C203 0.01uF/16V SMT Ceramic C204 10uF/6.3V SMT Tantalum C205 4.7uF/10V SMT Ceramic C206 10uF/6.3V SMT Tantalum C207 0.01uF/16V SMT Ceramic C208 1000p SMT Ceramic C210 12p SMT Ceramic C211 10uF/6.3V SMT Tantalum C211 1000p SMT Ceramic C301 1000p SMT Ceramic C302 0.1u SMT Ceramic C303 0.01u SMT Ceramic C304 0.01u SMT Ceramic C305 47uF/6.3V SMT Tantalum C306 0.01uF/16V SMT Ceramic C307 without SMT Tantalum C308 100p SMT Ceramic C309 100p SMT Ceramic C310 100p SMT Ceramic C311 0.47uF/16V SMT Ceramic C312 1000p SMT Ceramic C313 47uF/6.3V SMT Tantalum C314 1000p SMT Ceramic C315 1p SMT Ceramic C316 10uF/6.3V SMT Tantalum C317 0.1uF/16V SMT Ceramic C318 0.1uF/16V SMT Ceramic C319 1000p SMT Ceramic C320 10uF/6.3V SMT Tantalum C351 100p SMT Ceramic C352 without SMT Ceramic C353 1000p SMT Ceramic C354 1000p SMT Ceramic C355 0.1uF/16V SMT Ceramic C356 1000p SMT Ceramic C357 1000p SMT Ceramic C358 1000p SMT Ceramic C359 4p SMT Ceramic C362 18p SMT Ceramic C363 2p SMT Ceramic C364 1000p SMT Ceramic C365 1000p SMT Ceramic C366 1000p SMT Ceramic C367 1000p SMT Ceramic C368 0.1uF/16V SMT Ceramic C369 1000p SMT Ceramic C370 1000p SMT Ceramic C371 1000p SMT Ceramic C372 10uF/6.3V SMT Tantalum C373 1000p SMT Ceramic C374 3p SMT Ceramic C375 4p SMT Ceramic C376 9p SMT Ceramic C377 9p SMT Ceramic C378 9p SMT Ceramic C379 2p SMT Ceramic C380 1000p SMT Ceramic C381 2.2uF/10V SMT Tantalum C382 1000p SMT Ceramic C501 0.01uF/16V SMT Ceramic C503 1000p SMT Ceramic C504 1000p SMT Ceramic C505 1000p SMT Ceramic C506 1000p SMT Ceramic C507 1000p SMT Ceramic C508 0.1uF/16V SMT Ceramic C509 0.1uF/16V SMT Ceramic C510 100uF/6.3V SMT Tantalum C512 100p SMT Ceramic C513 3300p SMT Ceramic C514 100p SMT Ceramic C515 0.1u SMT Ceramic C516 100uF/6.3V SMT Tantalum C517 100uF/6.3V SMT Tantalum C518 100uF/6.3V SMT Tantalum C519 100uF/6.3V SMT Tantalum C520 0.1u SMT Ceramic C521 0.1u SMT Ceramic C522 1uF/16V SMT Ceramic C523 10uF/6.3V SMT Tantalum C524 10uF/16V SMT Tantalum C525 10uF/16V SMT Tantalum C526 …

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Subsection 2.983(d)(9): Factory Tune-up Procedure Test Equipment 1. BNC-P to MM121454 Coaxial RF cable Audio Technica custom RF cable 2. DC Power Supply Leader LPS-160-2 3. Audio Signal Generator Leader LAG-126S 4. Modulation Meter (FM liner detector) Anritsu MS61A 5. Spectrum Analyzer Advantest R3361D 6. RF Power Meter Anritsu MS 4803A 7. RF Power Sensor Anritsu MA4701A 8. Oscilloscope Tektronix 475A 9. DC Volt Meter Fluke 79 10. AC milli Volt Meter Leader LMV-1817 Adjustment of T1000 circuit board 1. Adjusting the frequency: 1-1. Measurement equipment and T1000C set up a. Spectrum Analyzer Set up - Center frequency: 554.00 MHz - Frequency span: 200kHz - Counter mode: ON b. T1000C LCD Setting - Frequency: 554.000MHz - RF-POWER: HI - GAIN: -6dB 1-2. Frequency set up: a. Adjust the T1000C carrier frequency by rotating the TC201 on the PCB of T1000C and set the main carrier peak to the spectrum analyzer’s center frequency. 2. RF Power Adjustment 2-1. Measurement equipment and T1000C set up a. RF Power meter set up - Measurement range: Auto-mode b. T1000C Setting - Frequency: 554.000MHz - RF-POWERHI & LOW - GAIN-6dB 2-2. T1000C adjustment a. Adjust the RF output power by rotating the VR351 on PCB of T1000C and set VR351 to have RF power meter at 35mW b. Adjust the LCD POWER of T1000C to LOW. c. Adjust and set the VR352 to have RF power meter at 10mW. 3. Deviation adjustment 3-1. Measurement equipment and T1000C set up a. Deviation Meter set up - Sensitivity: P-P/2 - Measurement Range: 100kHz - HPF: 50Hz - LPF: 20kHz - Measurement Frequency: 554.000MHz b. Audio Signal (Apply to CN3) - Frequency: 1kHz - Signal level: +4dBV (CN2 terminal voltage) c. T1000C setting - Frequency: 554.000MHz - RF-POWER: HI - GAIN: -6dB 3-2. Adjusting T1000C a. Adjust and set the VR3 on PCB of T1000C to have deviation meter to set +/-40kHz. 4. Tone Deviation Adjustment 4-1. Measurement equipment and T1000C set up a. Setting of Deviation Meter - Sense: P-P/2 - Measurement range: 3kHz - HPF: 4kHz - LPF: 120kHz - Measurement frequency: 554000MHz b. T1000C Setting - Frequency: 554000MHz - RF-POWER: HI - GAIN: -6dB 4-2. T1000C Adjustment a. Adjust the tone signal modulation level by rotating the VR51 on PCB of T1000C and set the VR51 to have the deviation meter to set +/-2kHz.

TIMCO ENGINEERING INC. 849 NW State Road 45 Newberry, Florida 32669 http://www.timcoengr.com 888.472.2424 F 352.472.2030 email: [email protected] APPLICANT: AUDIO TECHNICA CORPORATION Test Report Product Name: LICENSED BROADCAST TRANSMITTER FCC ID: JFZT1000C Applicant: AUDIO TECHNICA CORPORATION 2206 NARUSE MACHIDA TOKYO 194 JAPAN Date Receipt: FEBRUARY 3, 2004 Date Tested: FEBRUARY 25, 2004 FCC ID: JFZT1000C REPORT #: A\AudioTechnica_JFZ\69UT4\69UT4TestReport.doc COVER SHEET TIMCO ENGINEERING INC. 849 NW State Road 45 Newberry, Florida 32669 http://www.timcoengr.com 888.472.2424 F 352.472.2030 email: [email protected] APPLICANT: AUDIO TECHNICA CORPORATION FCC ID: JFZT1000C APPLICANT: AUDIO TECHNICA CORPORATION FCC ID: JFZT1000C TABLE OF CONTENTS LIST TEST REPORT CONTAINING: PAGE 1............GENERAL INFORMATION & TECHNICAL DESCRIPTION PAGE 2............TECHNICAL DESCRIPTION & RF OUTPUT POWER PAGE 3............MODULATION CHARACERTISTICS AUDIO FREQUENCY RESPONSE GRAPH PAGE 4............AUDIO INPUT VERSUS MODULATION GRAPH PAGE 5............OCCUPIED BANDWIDTH PAGE 6-7..........OCCUPIED BANDWIDTH PLOTS PAGE 8-10.........RADIATED EMISSIONS TEST DATA PAGE 11...........METHOD OF MEASURING RADIATED SPURIOUS EMISSIONS PAGE 12...........FREQUENCY STABILITY TEST DATA PAGE 13-14........EQUIPMENT LIST EXHIBITS CONTAINING: CONFIDENTIALITY LETTER BLOCK DIAGRAM SCHEMATICS PARTS LIST USERS MANUAL LABEL SAMPLE LABEL LOCATION EXTERNAL PHOTOGRAPHS INTERNAL PHOTOGRAPHS ALIGNMENT PROCEDURE OPERATIONAL DESCRIPTION TEST SET UP PHOTOGRAPHS REPORT #: T:\A\AudioTechnica_JFZ\122UT4\122UT4TestReport.doc TABLE OF CONTENTS TIMCO ENGINEERING INC. 849 NW State Road 45 Newberry, Florida 32669 http://www.timcoengr.com 888.472.2424 F 352.472.2030 email: [email protected] APPLICANT: AUDIO TECHNICA CORPORATION GENERAL INFORMATION REQUIRED FOR TYPE ACCEPTANCE 2.1033(c)(1)(2) AUDIO TECHNICA CORPORATION will manufacture the T1000C in quantity, for use under FCC RULES PART 74.801, LOW POWER AUXILIARY STATIONS. AUDIO TECHNICA CORPORATION 2206 NARUSE, MACHIDA TOKYO, 194 JAPAN 2.1033(c) TECHNICAL DESCRIPTION (3) Instruction book. The instruction manual is included as in the exhibits. (4) Type of Emission: 130K0F3E Bn = 2M + 2DK M = 20000 D = 45kHz(Peak Deviation) K = 1 Bn = 2(20k) + 2(45k)(1) = 130k 74.861 (e)(5) ALLOWED AUTHORIZED BANDWIDTH = 200kHz. (6) Frequency Range: Part 74: 541.5-566.375 MHz (7) Power Range and Controls: UNIT has no controls. (8) Maximum Output Power Rating: .020 Watts into 50 ohms resistive load. (9) DC Voltages and Current into Final Amplifier: FINAL AMPLIFIER ONLY 3.0 V BATTERY Vce = 3.0 Volts Ice = 13 mA. (10) Tune-up procedure. The tune-up procedure is given in the exhibits. (11) Complete Circuit Diagrams: The circuit diagram and block diagram are included in the exhibits. FCC ID: JFZT1000C REPORT #: T:\A\AudioTechnica_JFZ\122UT4\122UT4TestReport.doc Page 1 of 14 TIMCO ENGINEERING INC. 849 NW State Road 45 Newberry, Florida 32669 http://www.timcoengr.com 888.472.2424 F 352.472.2030 email: [email protected] APPLICANT: AUDIO TECHNICA CORPORATION 2.1033(c)(12) Photo or Drawing of Label and sketch of location: See the exhibits. 2.1033(c)(13) Photos of Equipment: See the exhibits. (14) Description of all circuitry and devices provided for determining and stabilizing frequency. Description of any circuits or devices employed for suppression of spurious radiation, for limit- ing modulation, and for limiting power. This circuitry is described on page 5. Limiting Modulation: The transmitter audio circuitry is contained in IC101, IC102 and IC103. Limiting Power: There is no provision for limiting power. (15) Digital modulation. This unit does not use digital modulation. 2.1033(c)(16) The data required by 2.1046 through 2.1057 is submitted below. 2.1046 RF power output RF power measured is: OUTPUT POWER: .020 WATTS R.F. POWER OUTPUT TEST PROCEDURE Transmitter 50 ohm under test Watt Meter Audio Oscillator FCC ID: JFZT1000C REPORT #: T:\A\AudioTechnica_JFZ\122UT4\122UT4TestReport.doc Page 2 of 14 TIMCO ENGINEERING INC. 849 NW State Road 45 Newberry, Florida 32669 http://www.timcoengr.com 888.472.2424 F 352.472.2030 email: [email protected] APPLICANT: AUDIO TECHNICA CORPORATION 2.1047(a)(b) Modulation characteristics: AUDIO FREQUENCY RESPONSE The audio frequency response was measured in accordance with TIA/EIA Specification 603. The audio frequency response curve is shown below. Audio Frequency Response Plot -2.5 +12.5 +0 +2.5 +5 +7.5 +10 d B 100 20k 200 500 1k 2k 5k 10k Hz AUDIO LOW PASS FILTER The audio low pass filter is not required in this unit. FCC ID: JFZT1000C REPORT #: T:\A\AudioTechnica_JFZ\122UT4\122UT4TestReport.doc Page 3 of 14 TIMCO ENGINEERING INC. 849 NW State Road 45 Newberry, Florida 32669 http://www.timcoengr.com 888.472.2424 F 352.472.2030 email: [email protected] APPLICANT: AUDIO TECHNICA CORPORATION 2.1047(b) Audio_input_versus_modulation 74.249 (d) A plot of the audio input versus deviation is shown below. Modulation Limiting Plots: 15KHz (Cyan), 2.5KHz (Green), 1.0KHz (Blue), and 300Hz (Yll) 0 45 30 40 k H z -20 +20-15 -10 -5+0+5+10 +15 dBu FCC ID: JFZT1000C REPORT #: T:\A\AudioTechnica_JFZ\122UT4\122UT4TestReport.doc Page 4 of 14 TIMCO ENGINEERING INC. 849 NW State Road 45 Newberry, Florida 32669 http://www.timcoengr.com 888.472.2424 F 352.472.2030 email: [email protected] APPLICANT: AUDIO TECHNICA CORPORATION 2.1049(c) Occupied Bandwidth: Data in the plots show that all sidebands between 50 & 100% for the authorized bandwidth are attenuated by at least 25dB. From 100 to 250% of the authorized bandwidth they are attenuated by at least 35dB and beyond 250% 43 log(Po) dB. The plot shows the transmitter modulated with 15000 Hz(the highest modulation frequency), adjusted for 50% modulation plus 16 dB. The spectrum analyzer was set with the unmodulated carrier at the top of the screen. The test procedure diagram and occupied bandwidth plots follow. Wireless Microphone transmitter: Test procedure d…

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