Audio Technica R2100D Wireless Microphone Receiver User Manual P51716 2000 Series OM Japan

Audio-Technica Corporation Wireless Microphone Receiver P51716 2000 Series OM Japan

USERS MANUAL

2000 Series ProfessionalUHF Wireless SystemsATW-2110UniPak™Transmitter SystemATW-2120 Handheld Dynamic Microphone SystemInstallation and Operation
Professional UHF Wireless SystemsInstallation and Operation2CAUTION! Electrical shock can result from removal of the receiver cover. Refer servicing to qualified service personnel.No user-serviceable parts inside. Do not expose to rain ormoisture.The circuits inside the receiver and transmitter have beenprecisely adjusted for optimum performance and compli-ance with federal regulations. Do not attempt to open thereceiver or transmitter. To do so will void the warranty,and may cause improper operation.This device complies with part 15 of the FCC Rules.Operation is subject to the condition that this device doesnot cause harmful interference.This device complies with INDUSTRY CANADA R.S.S. 210,en conformité avec IC: RSS-210/CNR210. Operationis subject to the following conditions: 1) This device maynot cause harmful interference and 2) this device mustaccept any interference received, including interferencewhich may cause undesired operation.The ATW-R2100 receiver features true diversity reception. Twoantennas feed two completely independent RF sections on the same frequency; automatic logic circuitry continuously compares and selects the superior received signal, providingbetter sound quality and reducing the possibility of interferenceand dropouts. Soft-touch controls provide convenient accessto selection of operating frequency and automatic scanning,while an LCD information display provides constant monitoringof system operation. The receiver is half-width for a standard1U 19" rack mount; rack-mount adapters are included. Tworeceivers can be mounted side by side, using an optionalAT8630 joining-plate kit.The versatile ATW-T210 UniPak™ body-pack transmitter hasboth low- and high-impedance inputs plus a bias connection, for use with dynamic and electret condenser microphones,as well as Hi-Z instrument pickups. The ATW-T220 handheld dynamic microphone/transmitter features the same element used in the PRO 41 dynamichandheld microphone created for professional live-soundvenues.Transmitters in the 2000 Series use two 1.5V AA batteries foreconomical operation and wide availability. Both transmittershave battery condition indicators.2000 Series receivers feature a sophisticated Tone Lock™ tone squelch system that opens the receiver’s audio outputonly when a 2000 Series transmitter is detected, reducing thepossibility of interference. As a result, 2000 Series transmittersand receivers must be used together and should not be usedwith components from other Audio-Technica wireless systems,or with those of other manufacturers. Please note that in multiple-system applications there must bea transmitter-receiver combination set to a separate channel(frequency) for each input desired (only one transmitter for each receiver).Because the wireless frequencies are within UHF TV frequencybands, only certain channels (operating frequencies) may beuseable in a particular geographic area. The 10 channels (operating frequencies) that are used in the 2000 Series havebeen selected for multi-channel compatibility. Subject to frequency availability in a particular geographic area, any ofthese 10 channels may be used together. The operating frequencies that correspond to each of the 10channels are listed on page 11.IntroductionNotice to individuals with implanted cardiac pacemakersor AICD devices:Any source of RF (radio frequency) energy mayinterfere withnormal functioning of the implanted device. All wirelessmicrophones have low-power transmitters (less than 0.05watts output) which are unlikely to cause difficulty, especial-ly if they are at least a few inches away. However, since a“body-pack” mic transmitter typically is placed against thebody, we suggest attaching it at the belt, rather than in a shirtpocket where it may be immediately adjacent to the medicaldevice. Note also that any medical-device disruption willcease when the RF transmitting source is turned off. Pleasecontact your physician or medical-device provider if you haveany questions, or experience any problems with the use ofthis or any other RF equipment.Thank you for choosing an Audio-Technica professional wirelesssystem. You have joined thousands of other satisfied customerswho have chosen our products because of their quality, performance and reliability. This Audio-Technica wireless microphone system is the successful result of years of designand manufacturing experience.Each 2000 Series wireless system provides a choice of 10 PLL-synthesized UHF frequencies in the 656-678 MHz band (TVchannels 45-48). Each wireless system includes a receiver and either a body-pack or handheld transmitter. Individual components are also available separately.
Receiver Installation3LocationFor best operation the receiver should be at least 3 ft. (1 m)above the ground and at least 3 ft. away from a wall or metalsurface to minimize reflections. The transmitter should be atleast 3 ft. from the receiver, as shown in Figure A. Keep antennas away from noise sources such as digital equipment,motors, automobiles and neon lights, as well as away fromlarge metal objects.Output ConnectionsThere are two audio outputs on the back panel: balanced (12.5 mV) and unbalanced (25 mV). Use shielded audio cablefor the connection between the receiver and the mixer. If theinput of the mixer is a 1/4" jack, connect a cable from the 1/4"unbalanced audio output on the back of the receiver housing to the mixer. If the input of the mixer is an XLR-type input,connect a cable from the balanced XLR-type audio output onthe back panel to the mixer. The two isolated audio outputspermit simultaneous feeds to both unbalanced and balancedinputs. For example, both a guitar amp and a mixer can be driven by the receiver.AntennasAttach the included pair of UHF antennas to the antenna inputjacks. The antennas are normally positioned in the shape of a“V” (both 45° from vertical) for best reception.Accessory antennas can be remotely located from the receiver.However, due to signal loss in cables at UHF frequencies, usethe lowest-loss RF cables practical for any cable runs over 25feet. RG8-type is a good choice. Use only copper-shieldedcable, not CATV-type foil-shielded wire. Audio-Technica offersquality RF cables in four lengths, as well as remote antennas;see the Optional System Accessories section on page 10.Power ConnectionsConnect the included AC adapter to the DC power input on theback of the receiver. Loop the small cord from the DC plug overthe cord hook above the jack, to keep the plug from beingdetached by an accidental tug on the cord. Then plug theadapter into a standard 120 Volt 60 Hz AC power outlet.Operation of the receiver is controlled by the front-panel Powerswitch.(Note: Units supplied to countries with 230V mains shouldinclude an in-line AC adapter appropriate for that country. Use the included adapter only with 120V 60 Hz AC power sources.) Figure A
4Receiver Controls and Functions6. RF SIGNAL LEVEL INDICATOR: Shows the strength of the RF signal received from the transmitter.7. TUNER OPERATION INDICATOR: Indicates which Tuner (A or B) has the better reception and is in operation.8. CHANNEL DISPLAY: Shows which channel is selected.9. AF LEVEL INDICATOR: Shows the audio modulation level of the received signal.1. POWER SWITCH: Press the Power switch in to turn the receiver on. The LCD window will light, and the operating channel number will be displayed in the window. To turn the receiver off, press the Power switch again.2. LCD WINDOW: Liquid Crystal Display indicates channelsetting and operational readings. See Fig. C for examples.3. UP/DOWN BUTTONS: Press Up or Down arrow buttons to arrive at desired channel. The selected number will flash on and off. Press and hold Set/Scan button to set the channel (operating frequency).4. SET/SCAN BUTTON: Two distinct operations are associatedwith this button:Touch:A momentary press of the Set/Scan button.Hold: A press and hold (about two seconds) of the Set/Scan button.The Set/Scan button can be used in two ways: Manual Set Mode, to permit selection of an operating channel; and Automatic Scan/Set Mode, to initiate the automatic channel scan and selection, as follows:Manual Set Mode:After using the Up or Down arrow button to arrive at desired channel, hold the Set/Scan button to set the channel. NOTE: Before the channel has been set, a touch of the Set/Scan button will revert the channel to its previous setting.Automatic Scan/Set Mode:Hold the Set/Scan button. The Automatic Scan/Set Mode will automatically scan for and set the next open channel.5. MOUNTING ADAPTERS: For mounting the receiver in any standard 19" rack. Attach adapters to the receiver with the screws supplied and remove the four receiver feet. (Use optional AT8630 joining-plate kit to mount two ATW-R2100 receivers side-by-side.)POWERONOFFSET/SCANDOWNUPUHF SYNTHESIZED DIVERSITY RECEIVER ATW-R2100Figure B-Front Panel Controls and Functions541523Figure C-Receiver LCD Window Display6798
Receiver Controls and Functions (Continued)10. ANTENNA INPUT JACK: BNC-type antenna connector for Tuner “B.” Attach the antenna directly, or extend it with a low-loss antenna cable. See the “Antennas” section on page 3 for more details.11. SQUELCH CONTROL: Adjusts level of noise-muting circuit (preset at factory but can be adjusted as circumstances warrant). Factory setting is full counterclockwise.12. ANTENNA INPUT JACK: Input for Tuner “A.” Attach the supplied antenna directly, or extend it to an accessory antenna with a low-loss antenna cable.13. AF LEVEL CONTROL: Adjusts audio output level of both AF output jacks; maximum output is fully clockwise.14. GROUND LIFT SWITCH: Disconnects the ground pin of the balanced output jack (15) from ground. Normally, the switchshould be to the left (ground connected). If hum caused by a ground loop occurs, slide switch to the right (ground lifted).AF OUT UNBALANCEDAF OUT BALANCEDANT. AANT. BAF LEVELMIN MAXGROUND LIFT12~18V DC 500 mAGROUNDSQUELCH1811 12Figure D-Rear Panel Controls and Functions14 15 16 17131015. BALANCED AUDIO OUTPUT JACK: XLRM-type connector.A standard 2-conductor shielded cable can be used to connect the receiver output to a balanced microphone-level input on a mixer or integrated amplifier.16. UNBALANCED AUDIO OUTPUT JACK: 1/4" phone jack. Can be connected to an unbalanced aux-level input of a mixer, guitar amp or tape recorder.17. POWER INPUT JACK: Connect the DC plug from the included in-line AC adapter.18. CORD HOOK: Loop the small DC cord around the cord hook to keep the DC plug from pulling out accidentally.5
6Handheld Transmitter Battery Installation1. While holding the upper part of the transmitter body by the translucant ring below the ball-screen, unscrew the lower body cover, slide it downward, and remove it to expose the battery compartment. 2. Observe correct polarity as marked inside the battery compartment and carefully insert two fresh 1.5V AA alkaline batteries. Insert the first battery and slide it down. Then insert the second battery into the space remaining. Make certain the batteries are fully seated in the battery compartment. (Fig. F)3. Slide the lower body cover back up the body, then screw the housing together. Do not overtighten. Note: Remove batteries from the handheld transmitter startingat the bottom end, where finger indents in the battery housingare provided for easy grip. Battery IndicatorAfter the battery is installed, turn on the power switch (locatedon the bottom of the handheld transmitter and on the top of theUniPak transmitter). The battery indicator LED (Fig. G/H) shouldturn red. If it does not, the batteries are installed incorrectly orthey are dead. UniPak Transmitter Input ConnectionConnect an audio input device (microphone or guitar cable) tothe audio input connector on the top of the transmitter. A number of Audio-Technica professional microphones and cablesare available separately, pre-terminated with a UniPak input connector (see “Optional System Accessories” on page 10).UniPak Transmitter AntennaThe ATW-T210 UHF transmitter includes one field-replaceableantenna mounted on the transmitter. The antenna simplyscrews into the transmitter’s antenna fitting. Check the installedantenna occasionally to make certain it is snugly attached (onlyfinger-tight). If the received signal is marginal, experiment withdifferent transmitter positions on your body or instrument or tryrepositioning the receiver. Do not attempt to modify the transmitting antenna. Replace it only with the same parts,available from the Audio-Technica Service Department. Transmitter Controls And FunctionsBattery SelectionTwo 1.5V AA alkaline batteries are recommended. UniPak™ Transmitter Battery Installation1. Open the transmitter door by pressing gently on the side-cover indentations and pulling back the hinged cover shown in Fig. E below.2. Lift the battery-keeper arm, and carefully insert two fresh 1.5V AA alkaline batteries, observing correct polarity as marked inside the battery compartment. 3. Close the battery-keeper arm. 4. Close the transmitter door.MAXMICMAXINSTCH13579LEVELTransmitterDoorFigure E-UniPak Transmitter OpenAntennaAudio Input JackInstrument/MicrophoneLevel Trim ControlsChannel SelectorSwitchBattery-keeperArm (open);Screwdriver onopposite sidePower-on LEDFigure F-Handheld Transmitter Battery CompartmentScrewdriverOFF ONPOWERBATT.OFF ONPOWERATW-T220Figure G-UniPak Transmitter Top ViewFigure H-HandheldTransmitter BottomViewInput ConnectorPower SwitchBattery IndicatorAntennaPower SwitchBattery Indicator
System OperationSwitch on the receiver. Do notswitch on the transmitter yet.Receiver On…The LCD display will light up and one of the tuner operation indicator LCD segments (A or B) will light, even though thetransmitter is not on. If two or more of the RF LCD segmentslight up at this point, there may be RF interference in the area. If this occurs, change operating channels (select another frequency).How to Make Operating Channel Changes Operating channel changes (frequency changes) may be madein two ways: manually and automatically.To change channel manually1. Use the Up/Down arrow buttons to reach the desired channel number. 2 Hold the Set/Scan button until the channel number stops flashing to set the receiver to the channel indicated. NOTE: Before the channel has been set, a touch (momentary press) of the Set/Scan (rather than a hold) will revert the channel to its previous setting.To change channel automatically1. Hold the Set/Scan button. The Automatic Scan/Set Mode will automatically scan for and set the next open channel. LCD screen will flash “FS” four times to indicate start of scan.Transmitter On…Before turning on the transmitter, use the provided screwdriverto set the transmitter channel selector switches (Fig. E/I) to thesame numbers as those displayed on the receiver. Always turnthe transmitter off when changing channels (frequencies).The transmitters have a two-position, on-off power switch.When the switch is “On,” the transmitter produces both RF and audio. There is about a half-second delay after the transmitter isswitched to the “On” position before the receiver’s Tone Locksquelch un-mutes the receiver.When the transmitter is switched on and in normal operation,the receiver’s RF signal level indicators will display as dark segments (signal strength indicators) from bottom to top at theleft side of the LCD display. Setting LevelsCorrect adjustment of transmitter audio input, receiver audio output, and mixer/amplifier input and output levels is importantfor optimum system performance.ATW-T220 Handheld TransmitterThe 2000 Series handheld transmitter has factory pre-set audioinput levels. Factory setting is full clockwise, maximum gain. While speaking/singing into the microphone at typically loud levels, check the AF meter levels on the receiver. If all five AFmeter bars are consistently illuminated and distortion is heardthrough the system, it may be necessary to adjust the transmitter audio input level. To adjust the transmitter audio input level, unscrew the lowerbody cover and slide it downwards, exposing the screwdriverand level trim control (Fig I). Remove the screwdriver and gentlyturn the level trim control counterclockwise until the topmostreceiver AF level meter bar is illuminated only on audio peaks.Return the screwdriver to its clip and close and secure the lowerbody. No further transmitter gain adjustments should be needed, as long as the acoustic input does not change significantly.CAUTION! The small trimmer controls are delicate; use only the supplied screwdriver. Do not force the trimmers beyond their normal 180° range of rotation.Return the screwdriver to its storage clip when not in use.MAXCHLEVEL13579Figure I-Handheld Transmitter Interior ViewChannel SelectorSwitchLevel Trim Control7Screwdriver
Setting Levels (Continued)ATW-T210 UniPak™ TransmitterTrimmer adjustments in the UniPak™ transmitter (Fig. E) willenable you to use microphones or instruments with differentoutput levels.1. For MIC: Set microphone level trim control fully clockwise (maximum) and instrument level trim control fully counterclockwise (minimum).For INSTRUMENT: Set instrument level trim control fully clockwise (maximum) and microphone level trim control fully counterclockwise (minimum).2. Set the receiver’s AF Level control to its full clockwise position (maximum). See Figure D on page 5.3. Plug the mic or instrument into the transmitter and power up the system.4. For MIC: Make an initial adjustment of the mixer’s level controls that will allow audio through the system.For INSTRUMENT: Make an initial adjustment of the instrument amplifier input level control that will allow audio through the system. 5. For MIC: While speaking/singing into the microphone at typically loud levels, check the AF meter levels on the receiver. If all five meter bars are consistently illuminated and distortion is heard through the system, it may be necessary to adjust the UniPak transmitter audio input level. To adjust the transmitter audio input level, gently turn the microphone level trim control counterclockwise until the topmost receiver AF level meter bar is illuminated only on audio peaks. For INSTRUMENT: While playing the instrument at typically loud levels, check the AF meter levels on the receiver. If all five meter bars are consistently illuminated and distortion isheard through the system, it may be necessary to adjust the UniPak transmitter audio input level. To adjust the transmitter audio input level, gently turn the instrument level trim control counterclockwise until the topmost receiver AF level meter bar is illuminated only on audio peaks.6. For MIC: While again speaking/singing into the microphone at typically loud levels, adjust the mixer’s input trim control so the highest sound pressure level going into the micro-phone causes no input overload in the mixer, and yet permits the mixer’s channel and output level controls to operate in their “normal” range (not set too high or too low). For INSTRUMENT: While again playing the instrument at typically loud levels, adjust the receiver’s AF Level control so the highest signal level causes no input overload in the instrument amplifier and yet permits the amplifier’s input level controls to operate in their “normal” range (not set too high or too low).Note: If the mixer cannot be adjusted to operate in its normal range without distortion, adjust the receiver’s AF Level Control (turn counterclockwise) until the mixer/amplifier is no longer overloaded. System Operation (Continued)Receiver SquelchThe squelch control on the back panel of the receiver is presetat the factory for best system performance (factory setting isfull counterclockwise), but can be adjusted if you must use the system in an area with considerable RF interference. If there isinterference in the audio, and changing the channel is not anoption, adjust the squelch control so the system will receive thesignal from your transmitter but will “squelch” or eliminate theunwanted background RF noise. This adjustment can cause areduction in useable range of the wireless transmitter, so setthe control to the lowest position that reliably mutes theunwanted RF signals.RF InterferencePlease note that wireless frequencies are shared with otherradio services. According to Federal CommunicationsCommission regulations, “Wireless microphone operations areunprotected from interference from other licensed operations inthe band. If any interference is received by any Government ornon Government operation, the wireless microphone mustcease operation...” If you need assistance with operation or frequency selection, please contact your dealer or Audio-Technica. Extensive wireless information also is availableon the Audio-Technica Web site at www.audio-technica.com.MAXMICMAXINSTCH13579LEVELTransmitterDoorFigure E-UniPak Transmitter OpenAntennaAudio Input JackInstrument/MicrophoneLevel Trim ControlsChannel SelectorBattery-keeperArm (open);Screwdriver onopposite sidePower-on LED8
OVERALL SYSTEMOperating Frequency UHF band, 656.125 to 678.500 MHzNumber of Channels 10 totalFrequency Stability ±0.005%, Phase Lock Loop frequency controlModulation Mode FMNormal Deviation ±5 kHzOperating Range 300' typicalOperating Temperature Range 41° F (5° C) to 113° F (45° C)Frequency Response 100 Hz to 15 kHzRECEIVERReceiving System Dual independent receivers, automatic-switching diversityImage Rejection 55 dB nominal, 50 dB minimumSignal-to-noise Ratio >100 dB at 40 kHz deviation (A-weighted), maximum modulation 40 kHzTotal Harmonic Distortion <1% (±10 kHz deviation at 1 kHz)Sensitivity 20 dBµV (S/N 60 dB at 5 kHz deviation, IEC-weighted)Intermediate Frequency 65.75 MHz, 10.7 MHzAudio Output (AF Level set at “0”)Unbalanced: 25 mV (at 1 kHz, ±5 kHz deviation, 100k ohm load)Balanced: 12.5 mV (at 1 kHz, ±5 kHz deviation, 100k ohm load)Output ConnectorsUnbalanced:1/4" phone jackBalanced: XLRM-typePower Supply 120V AC 60 Hz, or 12-18V DC, 350 mA, with external supplyDimensions 8.27" (210.0 mm) W x 1.73" (44.0 mm) H x 6.39" (162.2 mm) DWeight 2.2 lbs (1.0 kgs)Accessories Included Two flexible UHF antennas, rack-mount adapters, AC adapterSpecifications†UNIPAK™TRANSMITTERRF Power Output 12 mW Spurious Emissions Under federal regulationsInput Connections High impedance, low impedance, biasBatteries (not included) Two 1.5V AA alkaline Current Consumption 150 mA typicalBattery Life Approximately 9 hours (depending on battery type and use pattern)Dimensions 2.60" (66.0 mm) W x 3.63" (92.3 mm) H x 0.89" (22.5 mm) DNet Weight (without batteries) 2.82 oz (80 g)HANDHELD TRANSMITTERSRF Power Output 12 mWSpurious Emissions Under federal regulationsMicrophone Element Dynamic, unidirectionalBatteries (not included) Two 1.5V AA alkaline Current Consumption 150 mA typicalBattery Life Approximately 9 hours (depending on battery type and use pattern)Dimensions 9.02" (229.0 mm) long x 2.11" (53.5 mm) maximum diameterNet Weight (without batteries) 7.81 oz (221.5 g)Accessory Included AT8456a Quiet-Flex™stand clamp†In the interest of standards development, A.T.U.S. offers full details on its test methods to other industry professionals on request.Specifications are subject to change without notice.9
10Optional System AccessoriesWIRELESS ESSENTIALS™ MICROPHONES AND CABLESAT829cW Miniature cardioid condenser lavalier microphone. Includes clothing clip and windscreen. MT830cW Miniature omnidirectional condenser lavaliermicrophone. Includes clothing clip and windscreen.MT830cW-TH “Theater” model, same as MT830cW except beige color mic and cable for concealment.AT831cW Miniature cardioid condenser lavalier microphone. Includes clothing clip and windscreen.AT889cW Headworn noise-canceling condenser microphone. Includes windscreen and cable clip.AT898cW Subminiature cardioid condenser lavalier microphone. Includes clothing clip base, viper clip base, magnet clip base,three single mic holders, two double mic holders and two windscreens.AT899cW Subminiature omnidirectional condenser lavalier microphone. Includes AT899AK accessory kit.AT899cW-TH “Theater” model, same as AT899cW except beige color micand cable concealment. Includes AT899AK-TH accessory kit.ATM35cW Cardioid condenser instrument microphone. Includes AT8418 clip-on instrument mount.ATM73cW Headworn cardioid condenser microphone. Includes windscreen.ATM75cW Headworn cardioid condenser microphone. Includes windscreen.PRO 8HEcW Headworn hypercardioid dynamic microphone. Includes windscreen and cable clip.PRO 35xcW Cardioid condenser instrument microphone. Includes AT8418 clip-on instrument mount.AT-GCW Hi-Z instrument/guitar cable with 1/4" phone plug. XLRW Connecting cable for UniPak transmitter with an XLRF-type input connector, for Lo-Z microphones with XLRM-type output terminations.RECEIVER ACCESSORIESAEW-DA660D UHF (655-680 MHz) active unity-gain antenna distribution system provides two “1-in, 4-out” RF channels; connects a pair of antennas to as many as four diversity receivers; cascade output provided as a directional coupler. AC pass-through allows daisy-chain AC hookup. Defeatable antenna power. Metal receiver chassis with reinforced mounting ears and rear rack mount capability. Includes detachable IEC power cable, IEC pass-through cable, ten RF cables, front-mount antenna cables and connectors, four DC power cables to power up to four 2000 Series receivers. Mounts in a single 19" rack space. AT8630 Joining-plate kit allows rack-mounting two ATW-R2100 receivers side-by-side in a single (1U) 19" rack space.ATW-A20 Pair of UHF ground-plane antennas with 5/8"-27 thread for mounting to microphone stands, etc. For use with ATW-R2100 receivers. Takes RF cables with BNC connectors, not included; see RF Cables below.ATW-A49 Pair of UHF wide-band directional LPDA (log periodic dipole array) antennas provide enhanced signal pickup for UHF wireless systems throughout a wide band range (440-900 MHz). Each antenna paddle is matched to 50 ohms impedance with intergral high-quality low-loss BNC connector; 6 dB gain. For permanent or temporary installation; mounts to 5/8"-27 threads.ATW-RA1 Rack-mount antenna kit brings antenna inputs to the front of receiver for ease of setup, or when receiver is enclosed in a metal rack. Includes a pair of extendible antennas. NOTE: Two adapter kits are required when mounting two receivers side-by-side in a single 19" rack space.RF Cables Low-loss design, 50 ohm impedance, with BNC-to-BNC connectors:AC12 RG58-type cable (12')AC25 RG8-type cable (25')AC50 RG8-type cable (50')AC100 RG8-type cable (100')TRANSMITTER ACCESSORIESAT8114 Foam windscreen for handheld transmitter.AT8141 Water-resistant pouch for UniPak transmitter.AT8456a Quiet-Flex™ stand clamp for handheld transmitter, 5/8"-27 threads.
1. Use only fresh alkaline batteries. Do not use “general purpose” (carbon-zinc) batteries.2. Position the receiver so that it has the fewest possible obstructions between it and the normal location of the transmitter. Line-of-sight is best.3. The transmitter and the receiver should be as close together as conveniently possible, but no closer than three feet (1 m).4. The receiver antennas should be in the open and away from any metal. If mounted in a rack, have the unit on top, or use an ATW-RA1 kit to front-mount the antennas.5. The transmitter and receiver must be set to the same channel number.6. A receiver cannot receive signals from two transmitters at the same time.7. If the AF Level control of the receiver is set too high, it may over-drive the input of the mixer or clip the output of the receiver, causing distortion. Conversely, if the receiver output is set too low, the overall signal-to-noise ratio of the system may be reduced. Please see Setting Levels section, pages 7 and 8.8. You need to change channels when a strong interference signal is received (a strong RF signal is shown with the transmitter off).9. In the UniPak transmitter, the microphone level trim or instrument level trim input control not in use should be set to minimum.10. Turn the transmitter off when not in use. Remove the battery if the transmitter is not to be used for a period of time.Ten Tips to Obtain the Best Results2000 Series Frequency Channel PlanChannel Frequency - MHz TV Channel1 656.125 452 659.3753 660.0004 662.125 465 665.1256 669.750 477 671.5008 677.000 489 678.12510 678.50011Note: All frequencies selected to avoid standard analog TV carrier interference.For future reference, please record your system information here.Receiver ATW-R2100 S/NSerial Number appears on the FCC label on the back of the receiver.UniPak™ Body-Pack ATW-T210 S/NTransmitter Serial Number appears on the FCC label on the back of the transmitter.Handheld Dynamic ATW-T220 S/NMicrophone Transmitter Serial Number appears on the FCC label on the interior of the transmitter.
Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224 330/686-2600 www.audio-technica.comP#2323-03230 P51716 ©2004 Audio-Technica U.S., Inc. Printed in JapanOne-Year Limited WarrantyAudio-Technica professional wireless systems purchased in the U.S.A. are warranted for one year from date of purchase by Audio -Technica U.S., Inc.(A.T.U.S.) to be free of defects in materials and workmanship. In event of such defect, product will be repaired promptly without charge or, at ouroption, replaced with a new product of equal or superior value if delivered to A.T.U.S. or an Authorized Service Center, prepaid, together with thesales slip or other proof of purchase date. Prior approval from A.T.U.S. is required for return.This warranty excludes defects due to normal wear,abuse, shipping damage, or failure to use product in accordance with the instructions. This warranty is void in the event of unauthorized repair ormodification, or removal or defacing of the product labeling.For return approval and shipping information,contact the Service Dept., Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224.Except to the extent precluded by applicable state law, A.T.U.S. will have no liability for any consequential, incidental, or special damages; anywarranty of merchantability or fitness for particular purpose expires when this warranty expires.This warranty gives you specific legal rights, and you may have other rights which vary from state to state.Outside the U.S.A., please contact your local dealer for warranty details.Visit our Web Site!www.audio-technica.com

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