JFZT341DWireless Microphone

AUDIO TECHNICA MODEL ATW-3000 UHF WIRELESS MICROPHONE SYSTEM USER INFORMATION. INTRODUCTION Thank you for purchasing the ATW-3000 series wireless microphone 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 ATW-30000 system 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 ATW-T310 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 the 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 ATW-T310 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 side 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 set to use the system. PART 3. USING THE ATW-T341 HANDHELD TRANSMITTER 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 the batteries into the battery compartment and slide the battery compartment back into place. To change the frequency of operation, push and hold power /mute button located on bottom of 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 ATW-R310 RECEIVER Connect the AC adapter DC output connector to The ATW-R310 DC input jack Plug the 2 blades AC plug on AC adaptor AC cable to an 110V AC outlet. Push the on off 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 and hold set button until frequency only displayed on LCD Push set button once and check that frequency displayed on LCD brink. Push up or down arrow button to set receiver frequency to corresponding transmitter frequency. Pus set button once to set frequency. Push up or down arrow buttons to scrolls menu until VR and percent figures appeared If it not set to the VR 100%, push set button once and check that item displayed on LCD brink Push up arrow button to set it to maximum. Push set button once to set Push and hold Set button until LCD displayed “DEF” in a while 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 use the system.

9 APPENDIX 1 ACTIVE SEMICONDUCTIOR FUNCTIONS Reference Type Function AF Circuit IC1 NJM2068MD OP amplifier IC2 Dream T1 AF-amplifier and tone-Generator IC IC3 SA572 Compander IC RF Circuit Q303 2SC4226 RF-Buffer Q304-307 2SC5226 RF Amplifier Q308 2SC4738 Buffer amplifier Q309 2SC4738 RF-Power Controller Q310 2SA1745 RF-Switch IC5 MB1511PFV PLL IC IC8 NJU6366 PLL/ 9MHz Ref. Oscillator ACTIVE SEMICONDUCTORS FCCID: JFZT341D APPENDIX 1 APPENDIX 2 CIRCUITS AND DEVICES TO STABILIZE FREQUENCY Operating frequency is determined and stabilized by a PLL circuit using a 9MHz crystal-Controlled reference oscillator. CIRCUIT AND DEVICES TO STABILZE FREQUENCY FCCID: JFZT341D APPENDIX 2 APPENDIX 3 CIRCUIT TO SUPPRESS SPURIOUS RADIATION AND CONTROL MODULATION AUDIO CIRCUIT The audio signal produced by the microphone element is injected into the audio circuit composed of the op amp in IC2, Dream T1, then compressed via the compandor circuit composed o the op amp IC1 and compander IC, IC3, at a 2:1 ratio and is pre-emphasized by AF amp in IC2. The level of the output signal is controlled by the pot VR3 which is injected into the VCO, VCO1. Output level of the 32.15kHz tone signal that produced by IC2 is controlled by the pot VR4 which is mixed with the audio output signal and injected into the VCO, VCO1 MODULATOR CIRCUIT The modulator circuit is a direct FM type built around the VCO, VCO1. The modulated output from the VCO is sent to the RF final amplifier which boosts the output to a nominal level of 10mW at RF level low setting and 30mW at RF level Hi setting. RF PRE-AMPLIFIER & FINAL AMPLIFIER The 4 transistor amplifier stages, using 2SC4226 and 2SC5226 type transistors, culminating with a nominal transmitter output of 10mW at RF level low setting and 30mW at RF level Hi setting. The output filter comprised of L1303, L304, L1305, L306, C301, C302, C303 & C304 suppresses the output harmonics and output to the antenna. CIRCUIT TO SUPPRESS SPURIOUS RADIATION & CONTROL MODULATION FCC ID: JFZT341D APPENDIX 3

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 T341 Main circuit board RF Oscillation frequency adjustment 1-1,Measuremet equipments and the T341 set up a Spectrum analyzer setup Center frequency668.000MHz SPAN200kHz Frequency counterON b T341 LCD Setup Frequency668.000MHz RF-POWERHI GAIN-6dB 1-2, T341 adjustment Turn the TC301 on the T341circuit board and set the oscillation frequency to 668.000MHz RF output peak adjustment 2-1, Measurement equipments and theT341 setup a Spectrum analyzer setup Center frequency668.000MHz SPAN200kHz b T341 setup Same as 1-1-b 2-2, T341 adjustment a. Connect CN301 output to the Spectrum Analyzer input b. Adjust TC302 and set RF output power to maximum RF Power adjustment 3-1, Measurement equipments and the T341 setup a RF Power meter setup Measurement range: Auto b T341 setup Same as 1-1-b 3-2, T341 adjustment a Connect CN301 output to the RF Power meter input b Adjust the VR301 and set RF output power to 35mW c Set the LCD power indicator to Low d Adjust the VR300 and set RF output power to 10mW Tone signal modulation level adjustment 4-1, Measurement equipments and the T341 setup a Spectrum analyzer setup Center frequency668.000MHz SPAN200kHz Marker: On b T341 setup Same as 1-1-b 4-2, T341 adjustment Adjust VR 4 and set level difference between Main carrier and tone carrier to 30dBc Audio modulation level adjustment 5-1, Measurement equipments and the T341 setup a Deviation Meter setup SensitivityP-P/2 Range100kHz HPF50Hz LPF20kHz Frequency668.000MHz b Audio signal applied to CN2 Frequeycn1kHz Level+4dBV (at CN2 terminal c T341 setup Same as 1-1-b 5-2 T341 adjustment Adjust VR 3 and set deviation to +/- 30KIHz

A. INTRODUCTION The following data are submitted in connection with this request for type certification of the ATW-T341 transmitter in accordance with Part 2, Subpart J of the FCC Rules. The ATW-T341 is a 32 milliwatt (ERP(d)), UHF, frequency modulated, synthesized, battery operated transmitter configured as a hand-held microphone for wireless microphone applications under Part 74. B. GENERAL INFORMATION REQUIRED FOR TYPE CERTIFICATION (Paragraph 2.983 of the Rules) 1. Name of applicant: Audio Technica Corporation 2. Identification of equipment: FCC ID: JFZT341D a. The equipment identification label is included as a separate exhibit. b. Photographs of the equipment are included as a separate exhibit. 3. Quantity production is planned. 4. Technical description: a. Emission 130k0F3E b. Frequency range: 655 - 680 MHz. c. Operating power of transmitter is fixed at the factory at 32 mW (ERP(d)). d. Maximum power permitted under Part 74.861(e) (1)(ii) of the rules is 250 milliwatts, and the ATW-T341 complied with those power limitations. e. Function of each active semiconductor device: See Appendix 1. f. Complete circuit diagram is included as a separate exhibit. g. A draft instruction book is included as a separate exhibit. h. The transmitter tune-up procedure is included as a separate exhibit. 1 B. GENERAL INFORMATION REQUIRED (Continued) i. A description of circuits for stabilizing frequency is included in Appendix 2. j. A description of circuits and devices employed for suppression of spurious radiation and for limiting modulation is included in Appendix 3. k. Not applicable. 5. Data for 2.985 through 2.997 follow this section. 6. RF_Power_Output (Paragraph 2.987(a) of the Rules) The device has an integral antenna. Effective radiated power (assuming an ideal dipole) was determined, by substitution, as 32 mW. NOTE: All audio measurements were made hard-wired. C. MODULATION CHARACTERISTICS 1. A curve showing frequency response of the transmitter is shown in Figure 1. Reference level was a 1 kHz audio signal at 10 kHz deviation. A Boonton 8220 modulation meter was used to measure deviation. Audio output was measured from an Audio Precision System One integrated measurement system. 2. Under Section 74.861 no modulation limiting is required. Figure 2 shows deviation as a function of input does not exceed 75 kHz. 3. Occupied_Bandwidth (Paragraphs 2.989, and 74.861(6) of the Rules) Figure 2 is a plot of the sideband envelope of the transmitter taken with a Tektronix 494P spectrum analyzer. Modulation consisted of a 15 kHz tone at an input level necessary to produce 85% of the rated 25 kHz deviation, per 2.989(e)(3). NOTE: Audio bandwidth is 15 kHz, and maximum system deviation is 50 kHz. Using 2D+2F = modulation factor. Where "D" is rated system deviation, and "F" is maximum modulation frequency, an emission designator of 130k0F3E was computed. 2 FIGURE 1 MODULATION FREQUENCY RESPONSE MODULATION FREQUENCY RESPONSE FCC ID: JFZT341D FIGURE 1 3 FIGURE 2 DEVIATION VS INPUT SIGNAL SOLID LINE: 15 kHz LONG DASH: 7.5 kHz SHORT DASH: 300 Hz DEVIATION VS INPUT SIGNAL FCC ID: JFZT341D FIGURE 2 4 FIGURE 3 OCCUPIED BANDWIDTH OCCUPIED BANDWIDTH FCC ID: JFZT341D FIGURE 3 5 C. MODULATION CHARACTERISTICS (Continued) The plots are within the limits imposed by paragraph 74.861(6). The horizontal scale (frequency is 50 kHz per division) and the vertical scale (amplitude) is a logarithmic presentation equal to 10 dB per division. D. SPURIOUS EMISSIONS AT THE ANTENNA TERMINALS (Paragraph 2.991 of the Rules) NOT APPLICABLE, INTEGRAL ANTENNA. E. MEASUREMENTS OF SPURIOUS RADIATION Measurements of radiated spurious emissions from the ATW- T341 were made by substitution with a Tektronix 494P spectrum analyzer using Singer DM-105A calibrated dipole antennas below 1 GHz, and Polarad CA-L, and CA-S or EMCO 3115 from 1-8.0 GHz. The transmitter was located in an open field 3 meters from the test antenna. Supply was two AA batteries. The transmitter and test antennas were arranged to maximize pickup. Both vertical and horizontal test antennae polarization were employed. Reference level for the spurious radiation was taken as the carrier level. 6 TABLE 1 TRANSMITTER RADIATED SPURIOUS 668.000 MHz, 3 Vdc, 32 mW Spurious dB Below Frequency Carrier ___MHz__ Reference 1 668.000 0 3340.008 48V Required: 43+10Log(P) 28 1 Worst-case polarization, H-Horizontal, V-Vertical. All other spurious to 6.7 GHz were 26 dB or more below FCC limit. 7 F. FREQUENCY STABILITY (Paragraph 2.995(2) and 74.861 of the Rules) Measurement of frequency stability versus temperature was made at temperatures from -30 o C to +50 o C. At each temperature, the unit was exposed to test chamber ambient a minimum of 60 minutes after indicated chamber temperature ambient had stabilized to within ±2° of the desired test temperature. Following the 1 hour soak at each temperature, the unit was turned on, keyed and frequency measured within 2 minutes. Test temperature was sequenced in the order shown in Table 2, starting with -30°C. A Thermotron S1.2 temperature chamber was used. Temperature was monitored with a Keithley 871 digital temperature probe. Primary supply was 3 Vdc. Frequency was measured with a HP5385A digital frequency counter connected to the transmitter through a power attenuator. TABLE 2 FREQUENCY STABILITY AS A FUNCTION OF TEMPERATURE 668.000 MHz; 3 Vdc; 32 mW Temperature,_°C Output_Frequency,_MHz p.p.m. -29.7 668.015256 22.8 -19.6 668.015412 23.1 - 9.3 668.014965 22.4 0.0 668.013995 21.0 10.7 668.012172 18.2 19.8 668.008519 12.8 30.6 668.004269 6.4 40.1 668.000394 0.6 49.6 668.996667 -5.0 Maximum frequency error: 668.015412 668.000000 + 0.015412 MHz FCC Rule 74.861(e)(4) specifies .005% (50 p.p.m.) or a maximum of ±0.033400 MHz, corresponding to: High Limit 668.033400 MHz Low Limit 668.966600 MHz 8 G. FREQUENCY STABILITY AS A FUNCTION OF SUPPLY VOLTAGE (Paragraph 2.995(d)(2) of the Rules) Oscillator frequency as a function of power supply voltage was measu…

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