Audio Technica R3100C UHF RECEIVER User Manual P51733 3000 Series OM

Audio-Technica Corporation UHF RECEIVER P51733 3000 Series OM

users manual

3000 Series ProfessionalUHF Wireless SystemsATW-3110aUniPak™Transmitter SystemATW-3141a 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.For simplicity, model numbers used throughout the manual willreference only the basic model number without the “C” or “D”band indications.Each wireless system includes a receiver and either a body-pack or handheld transmitter. Individual components are alsoavailable separately.All 3000 Series components feature soft-touch controls forquick, easy access to a formidable range of functions; an LCDinformation display in each unit provides convenient visual indication of unit settings and operation.The ATW-R3100 receiver is equipped with automatic frequencyscanning for easy set-up. It also features true diversity reception. Two antennas feed two completely independent RFsections on the same frequency; automatic logic circuitry continuously compares and selects the superior received signal,providing better sound quality and reducing the possibility ofinterference and dropouts. Soft-touch controls provide convenient access to a variety of functions, while an LCD information display provides constant monitoring of systemoperation, including indication of the transmitter’s battery status. The receiver is half-width for a standard 1U 19" rackmount; rack-mount adapters are included. Two receivers can be mounted side by side, using an optional AT8630 joining-platekit.The versatile ATW-T310 UniPak™ body-pack transmitter has both low- and high-impedance inputs plus a bias connection, for use with dynamic and electret condenser microphones, aswell as Hi-Z instrument pickups. In addition to its programmablefunctions, the transmitter features a three-position sliding coverto limit access, if desired, to just the Power/Mute button, or tono controls, as appropriate for the application and user.The ATW-T341 handheld dynamic microphone/transmitter features the same element used in the Artist Elite®AE4100dynamic handheld microphone created for professional live-sound venues.Transmitters in the 3000 Series use two 1.5V AA batteries for economical operation and wide availability. The receiver andboth transmitters have “fuel gauge” battery condition indicatorswith low-battery warnings.An advanced Digital Tone Lock™ tone squelch system in theATW-R3100 receiver opens only when a 3000 Series transmit-ter is detected, reducing the possibility of interference. As a result, 3000 Series transmitters and receivers must be usedtogether and should not be used with components from other Audio-Technica wireless systems, or with those of othermanufacturers.Please note that in multiple-system applications there must bea transmitter-receiver combination set to a separate frequencyfor each input desired (only one transmitter for each receiver). Because the wireless frequencies are within UHF TV frequencybands, only certain operating frequencies may be useable in a particular geographic area. System operating frequencies willbe found on page 13.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, perfor-mance and reliability. This Audio-Technica wireless microphonesystem is the successful result of years of design and manufac-turing experience.3000 Series systems and components operate on 200 PLL- synthesized frequencies in one or two 25 MHz-wide UHF frequency ranges:• Band C 541.500–566.375 MHz (TV Channels 25–30)• Band D 655.500–680.375 MHz (TV Channels 44–49)
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 (32 mV) and unbalanced (50 mV). Use shielded audio cable forthe 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.Antennas can be remotely located from the receiver. However,due to signal loss in cables at UHF frequencies, use the lowest-loss RF cables practical for any cable runs over 25 feet.RG8-type is a good choice. Use only copper-shielded cable, not CATV-type foil-shielded wire. Audio-Technica offers qualityRF cables in four lengths, as well as remote antennas; see theOptional System Accessories section on page 12.Power ConnectionsConnect the included AD1205AA in-line AC adapter to the DCpower input on the back of the receiver. Loop the small cordfrom the DC plug over the cord hook above the jack, to keepthe plug from being detached by an accidental tug on the cord.Then plug the larger cord from the in-line adapter into a standard 120 Volt 60 Hz AC power outlet. Operation of thereceiver is controlled by the front-panel Power switch. (Note: Units supplied to countries with 230V mains shouldinclude an in-line AC adapter appropriate for that country. Use the AD1205AA adapter only with 120V 60 Hz AC power sources.) See pages 18-19 for illustrations.Figure A
4Power On/OffTo turn the receiver on, press in the Power switch. The Alertlight and the LCD window will come on (about 1-2 seconds).The operating frequency will be displayed in the window afterthe power-up sequence. To turn the receiver off, press thePower switch again.LCD WindowThe LCD (Liquid Crystal Display) presents a great deal of setupand operating information clearly and conveniently. (See FigureD for examples.)Up/Down Arrow ButtonsIn conjunction with the Mode/Set button, the arrow buttons permit moving through the menu of functions, and choice ofsettings within each function.Mode/Set ButtonThe Mode/Set button shifts the receiver from normal operationinto Menu mode and, in conjunction with the Up/Down arrowbuttons, permits selection of different features and changing oftheir stored values in the Edit mode.How to Make Setting Changes1. From the normal operating mode, press the Mode/Set button onceto enter the Function Menu mode. (Only the frequency will remain in the LCD window, and the receiver’s audio output will be cut off.)2. Use the Up/Down arrow buttons to reach the desired function. The value in the LCD window is the current setting for that function.3. Press the Mode/Set button once again to open the list of available choices for that function. The value will flash, indicating that it can be changed (Edit mode).4. Use the arrow buttons to go through the available choices, stopping on the desired new choice.5. (a) To accept and enter the new choice, press and holdthe Mode/Set button until “STORED”appears in the LCD. This changes the value and puts the function of the buttons back at Menu level (step 2 above). (The “B” tuner light will come on while the Mode/Set button is depressed, to confirm its action.)(b) To “back out” of the Edit mode without making a new choice, simply press the Mode/Set button once. The word “ESCAPE”will appear in the window and the function of the buttons will revert to the Menu level (step 2 above), without making any changes.6. Repeat this selection process for any other function changes desired. When finished with any changes, use the arrow buttons to move to “QUIT”. Press the Mode/Set button onceto exit the menu and return the receiver to normal operation. (“RF”and “AF”will reappear in the window, indicating the return to normal receiver operation, with the receiver’s audio output again enabled.)How to Restore Default SettingsTo return allthe receiver functions to their original factory-default settings, first turn the receiver off. Then hold in the Mode/Set buttonwhile pressing the Power switch. The LCDwill briefly show “RESET”, followed by “WAIT”(release theMode/Set button), before commencing normal-mode operationat the default settings.Front Panel Controls and Functions (Fig. B)1. POWER SWITCH: Press Power switch in and the receiver readouts will light.2. ALERT INDICATOR: The Alert Indicator lights:(a) When the receiver is in the Function Edit mode,(b) When no RF signal is received from transmitter,(c) When only one or two RFsignal-strength bars are on,(d) When the transmitter is in the Mute mode,(e) When audio modulation level from the transmitter is close to the clipping point (AF +3/+6 bars),(f) When only one bar of the Battery “fuel gauge” is on (transmitter battery is weak).3. LCD WINDOW: Liquid Crystal Display indicates control settings and operational readings. See Figure D on page 18 for examples.4. TUNER OPERATION INDICATOR: Indicates which Tuner (A or B) has the better reception and is in operation. The “B” indicator also lights to serve as confirmation of Mode/Set button entries.5. UP/DOWN BUTTONS: Press Up or Down arrow buttons, in conjunction with the Mode/Set button, to step through menus, select operating frequency and edit receiver function choices.6. MODE/SET BUTTON: Use in conjunction with the Up/Down arrow buttons to step through menus, choose operating frequency, initiate automatic scanning and select receiver function options.7. 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-R3100 receivers side-by-side.)Rear Panel Controls and Functions (Fig. C)8. 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.9. ANTENNA INPUT JACK: Input for Tuner “A.” Attach the antenna directly, or extend it with a low-loss antenna cable.10. AF LEVEL CONTROL: Adjusts audio output level of both AF Output jacks; maximum output is fully clockwise.11. GROUND LIFT SWITCH: Disconnects the ground pin of the balanced output jack (12) from ground. Normally, the switch should be to the left (ground connected). If hum caused by a ground loop occurs, slide switch to the right (ground lifted).12. 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.13. 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.14. POWER INPUT JACK: Connect the DC plug from the included in-line AC adapter.15. CORD HOOK: Loop the small DC cord around the cord hook to keep the DC plug from pulling out accidentally.Receiver Controls and Functions
5When the receiver is in the Menu or Edit mode, its audio output is silenced. Once control-setting operations are completed (or Escape is used), normal receiver operation will resume with its audio output restored.While in the Edit mode, if no action is taken for approxi-mately 30 seconds (no buttons pressed), the receiver will“back out” to the Menu mode. Similarly, after about 30 seconds of inaction in the Menu mode, the receiver will“back out” to normal receiver operation with audio outputrestored.Receiver FunctionsFunction Menu Default Setting* Choices (Edit) ▲▼ Wrap-around**(Receiver powers-up at Frequency)▲▼ Frequency Lowest in band†200 discrete frequencies Yes▲▼ High-pass FilterHP OFF HP OFF HP –6 HP –12 HP –18No▲▼ Meter HoldMH OFF MH OFF MH ONYes▲▼ SquelchSQ 15 dB SQ 15 dBto SQ 39 dBin 6 dB steps No▲ Scan 1 Lowest in frequency group All frequencies in Scan 1 group No▲ Scan 2 Lowest in frequency group All frequencies in Scan 2 group No▲ Scan 3 Lowest in frequency group All frequencies in Scan 3 group No▲▼ Quit (exit Menu)QUITPress Mode/Set to exit --* To reset to Default values, hold in the Mode/Set button while pressing the Power button to turn on the unit.** Continue in the same Up/Down direction and choices “wrap around” to the other end of the range.† Band C: 541.500 – 566.375 MHz; Band D: 655.500 – 680.375 MHz. Table 1. Receiver FunctionsReceiver Controls and Functions (Continued)High-pass FilterInternal high-pass filter circuitry may be set to four positions:High-pass Off, or a 6 dB, 12 dB or 18 dB slope at 150 Hz. Thedefault setting is Off (“HP OFF”). Increasing the slope of thehigh-pass filter further suppresses unwanted low frequencies,while maintaining the frequency response in the desired audiorange.Meter Hold SettingWhen activated(“MH ON”), this function permits the bar-meters in the LCD window to capture and display the highest-level “AF”audio modulation (a solid bar) and the lowest-level "RF"signal (a flashing bar) received from the transmitter. This is particularly useful when setting up the system initially, during a sound-check, or when diagnosingoperating problems. The default setting is Off (“MH OFF”).When the Meter Hold is On, it is possible to reset it – to obtaina new set of RF and AF readings – without turning it off-and-onusing the Menu/Edit functions. Simply press the transmitter’sPower/Mute button once (to mute the transmitter) and waituntil the receiver’s Alert light comes on,indicating the Mutecondition. Then press the transmitter’s Power/Mute button onceagain, to un-mute the transmitter. After the Alert light goesout,a new set of min/max RF/AF readings will be indicated onthe bar-meters. (Note that, depending upon the digital updating-and-confirming sequence of the Mute condition data from thetransmitter, it may take several seconds for the Alert light condition to change. The Meter Hold function is not resetuntil the Alert light has turned on, then turned off.)Digital Tone Lock™SquelchThe 3000 Series employs a unique Digital Tone Lock squelchsystem that provides enhanced rejection of interference. In addition to providing highly effective control of unwanted noise,the Tone Lock signal from the transmitter also conveys data onthe transmitter’s battery condition and mute status back to thereceiver for display.The squelch level is adjustable from 15 dB (the default value) to39 dB in 6 dB steps. Increasing the squelch level – also called“tightening the squelch” – can cause a reduction in useablerange of the wireless transmitter, so use the lowest value thatreliably mutes the unwanted RF signals. (If interference is aproblem, first consider trying a different frequency.)See pages 18-19 for illustrations.
6PWR.LOCPower is locked On as of the time “PWR.LOC”is applied. The Mute functioning is unaffected. Note: When in the PWR.LOCmode, the transmitter may be turned off by: (1) Re-accessingthe .LOCMenu and changing the setting, or (2) Removing and re-installing the batteries. When the transmitter is turned on again, it will power-up in the NO.LOCmode. (Only the PWR. LOCfunction will change when batteries are removed; all other settings remain stored in memory.)If an attempt is made to take an action that currently is lockedout, the LCD will display “LOC.KED”briefly, then return to itspreviously-displayed contents.Audio Input SelectorThe UniPak™ body-pack transmitter provides input connectionsfor both low-impedance (Lo-Z) microphones and high-impedance (Hi-Z) instruments. A wide range of Audio-TechnicaWireless Essentials™ microphones and cables is available pre-terminated with the appropriate professional latching connector. (See page 12.)Selection of the desired input – microphone or instrument – ismade through the function menu. Depending upon the inputselected, a small “MIC”or “INST”will show in the LCD window, just below the frequency. (In the handheld transmitter,only “MIC”will show in the LCD window.)Setting Audio Input LevelA 4-position audio input gain setting, selected through the function menu, serves to match the audio input level to thetransmitter for best modulation with minimum distortion.Available choices are +12 dB, +6 dB, 0 dB and –6 dB. Thedefault value is +6 dB. Select the highest setting that does not result in over-modulation with the highest audio/instrumentinput levels (an AF indication on the receiver no higher than“0”); watch the receiver’s “AF”meter “+3/+6”indications andthe Alert light to make certain they are not triggered by thehighest audio levels.The transmitter’s normally-on red LED power indicator will blinkoff if the peak audio input exceeds the maximum desirablelevel.Restore Default SettingsA “PRESET”selection in the menu permits resetting of alltransmitter functions to their factory-default values.1. Press the Set button once to move to Menu mode.2. Press the Up arrow twice to move to “PRESET”in the LCD window.3. Press the Set button once and “LOAD”will appear in the LCD.4.Press and holdthe Set button until “DEF”appears in the LCD.5.Press and holdthe Set button until “LOADED”appears briefly in the LCD. The window will then revert to “PRESET”.6. Press the Down arrow once to move to “QUIT”.7. Press the Set button once to exit the Menu mode and return to normal operation, with all factory-default settings restored.Refer to Figures E, F, G and H on pages 18 and 19 for anoverview of transmitter features and controls.LCD WindowThe Liquid Crystal Display presents a great deal of setup andoperating information clearly and conveniently (See examples in Fig. J). The LCD in the transmitters is designed for greatestcontrast and best viewing with the window rotated somewhatawayfrom the viewer (about 30 degrees), not straight-on, for a more convenient holding/viewing position.Power/Mute ButtonThe transmitters have a combination Power and Mute switch.When used in combination with the programmed choicesexplained below, the various functions available to the transmitter user may be tailored to fit personal preferences or particular situations of use.Power On/OffTo turn the transmitter on, press and hold the Power/Mute button until the red power indicator and the LCD window comeon (about 1-2 seconds). The operating frequency will show inthe window after the power-up sequence.To turn the transmitter off, press and holdthe Power/Mute button again, until the red power indicator and the LCD windoware extinguished (about 1-2 seconds). The LCD window willshow “PWR.OFF”before shutdown.Mute Off/OnWhen the transmitter is muted, it produces RF with no audiosignal modulation. When the transmitter is un-muted, it produces both RF and audio.To mute the transmitter (cut off the audio, but continue the RFoutput), press and releasethe Power/Mute button once. Asmall “MUTE”will appear in the LCD window, just below thefrequency (Fig. J-2).To un-mute the transmitter (restore the audio), press andreleasethe Power/Mute button onceagain. The “MUTE”willdisappear from the LCD window.Power/Mute LocksProgrammable Power/Mute Locks limit the functioning of thePower/Mute button as desired for particular users and/or appli-cations. Power can be locked On; Mute can be locked Off.Selection of the desired locks, if any, is made through the function menu:Setting DescriptionNO.LOCThe normal Power and Mute functions are fully operational.ALL.LOCBoth the Power and Mute functions are locked into their status as of the time “ALL.LOC”is applied. (Power On, and Mute either On or Off.) Note: ALL.LOCmust be re-accessed and the setting changed to turn the transmitter off.MUT.LOCIn this mode, the audio cannot be muted. The Power functioning is unaffected. (If MUT.LOCis applied while the transmitter is muted, pressing the Power/Mute button once will return to un-muted operation; thereafter the Mute function is disabled until the setting is changed again.)Transmitter Controls And Functions
UniPak Transmitter FunctionsFunction Menu Default Setting Choices (Edit) ▲▼ Wrap-around**(Transmitter powers-up at Frequency)▲▼ Frequency Lowest in band†200 discrete frequencies Yes▲▼ RF PowerRF LOW RF LOW RF HIYes▲▼ Audio Input Level+6 dB –6 dB 0 dB +6 dB +12 dBNo▲▼ Power/Mute LocksNO.LOC NO.LOC ALL.LOC MUT.LOC PWR.LOCYes▲▼ Input SelectMIC MIC INSTRYes▲▼ Reset to DefaultsPRESET LOAD(b) hold until: DEF(c) hold until: LOADED--▲▼ Quit (exit Menu)QUITPress Set to exit --** Continue in the same Up/Down direction and choices “wrap around” to the other end of the range.† Band C: 541.500 MHz; Band D: 655.500 MHz.Table 2. UniPak Transmitter FunctionsTransmitter Controls And Functions (Continued)Handheld Transmitter FunctionsFunction Menu Default Setting Choices (Edit) ▲▼ Wrap-around**(Transmitter powers-up at Frequency)▲▼ Frequency Lowest in band†200 discrete frequencies Yes▲▼ RF PowerRF LOW RF LOW RF HIYes▲▼ Audio Input Level+6 dB –6 dB 0 dB +6 dB +12 dBNo▲▼ Power/Mute LocksNO.LOC NO.LOC ALL.LOC MUT.LOC PWR.LOCYes▲▼ Reset to DefaultsPRESET LOAD(b) hold until: DEF(c) hold until: LOADED--▲▼ Quit (exit Menu)QUITPress Set to exit --** Continue in the same Up/Down direction and choices “wrap around” to the other end of the range.† Band C: 541.500 MHz; Band D: 655.500 MHz.Table 3. Handheld Transmitter Functions7See pages 18-19 for illustrations.
Transmitter SetupBattery Selection and InstallationEach transmitter uses two 1.5V AA batteries, not included.Alkaline type is recommended. Always replace both batteries.Make certain the transmitter power is Off before replacing batteries.UniPak™ Transmitter Battery Installation1. Open the battery compartment door by sliding the catch down (Fig. K). (If no batteries are inside, the door will not spring open by itself.)2.Observe correct polarity as marked on the metal contacts on the doorand carefully insert two fresh 1.5V AA alkaline batteries (Fig. L).3. Close the door, making certain the latch clicks securely in place.Handheld Transmitter Battery Installation1. While holding the lower body cover (near the LCD window), grasp the upper part of the transmitter body just belowthe grille and unscrew it at least four complete turns (Fig. G); then slide the lower body cover down until it stops (Fig. H). Once the cover has been lowered, turn the transmitter over to reveal the battery compartment on the side opposite the LCD window.2.Observe correct polarity as marked inside the battery compartmentand carefully insert two fresh 1.5V AA alkaline batteries (Fig. M). Insert the first battery and slide it down. Then insert the second battery, bottom first, into the space remaining. Make certain the batteries are fully seated in the battery compartment.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) of the top battery (Fig. M). The top (+ end) of the top battery is captured in a recess and will notcome straight out.Battery Condition IndicatorAfter the batteries are installed, turn the power on by pressingand holdingthe Power/Mute button. The small red power-onLED (Fig. E/F) should light and the LCD window should comeon. If this does not happen, the batteries are installed incorrectlyor they are dead. The transmitter’s “fuel gauge” battery indicator displays a maximum of four bar segments. When itflashes “LOW.BAT”, the batteries should be replaced immedi-ately to ensure continued operation. (The receiver also displaystransmitter battery condition in the LCD window with bar segments; the Alert indicator comes on to warn of a low-batterycondition.)UniPak Transmitter Input ConnectionConnect an audio input device (microphone or guitar cable) tothe audio input jack on the bottom of the transmitter. A numberof Audio-Technica professional microphones and cables areavailable separately, pre-terminated with a UniPak input connec-tor (see “Optional System Accessories” on page 12). The cableconnector latches automatically when inserted into the transmit-ter jack. To unlatch and remove the connector, simply pull up onthe connector’s knurled metal collar.UniPak Transmitter AntennaThe UniPak transmitter includes a field-replaceable flexibleantenna. For best results, allow the antenna to hang freely andfull length from the bottom of the transmitter. If the receivedsignal is marginal, experiment with different transmitter positions on your body or instrument; or try repositioning the receiver or using remote receiver antennas. Since the transmitter antenna simply screws in, check it occasionally tomake certain it is snugly attached (finger-tight). Do not changethe length of the transmitting antenna.Handheld Transmitter AntennaThe antenna for the handheld mic/transmitter is in the black,non-metallic section at the bottom of the unit (Fig. F). For bestresults, hold the mic/transmitter naturally, around its paintedmetal case; holding or otherwise covering the antenna housingmay affect operating range.UniPak Transmitter Mounting ClipThe UniPak transmitter’s mounting clip may be installed withthe case positioned either “up” or “down,” depending uponwhich is preferred for the application. To turn the clip around,spring the ends of the clip out of the two holes on the sides ofthe transmitter case (Fig. E) and reinstall it facing in the oppositedirection.8
System OperationSwitch on the receiver. Do notswitch on the transmitter yet.Selecting/Setting FrequencySelection of the desired operating frequency is made throughthe function menus. It’s usually best to start by setting thereceiver’s frequency, to determine there is no local interferenceon that frequency. Then, always make certain to set the trans-mitter to the receiver’s exact frequency. The receiver’s uniqueDigital Tone Lock system squelches the audio only, permittingany RF energy on the frequency to show on the “RF”bar-meter.Note: It’s often convenient to start with the factory-default frequency, if there is no TV station on Channel 25 (for Band Csystems) or Channel 44 (for Band D systems).Receiver On…The Alert indicator and the LCD window will light up; the normal-operation LCD display will appear after 1-2 seconds (Fig.D-1). If any of the bars show in the “RF”bar-graph meter, theremay be RF interference in the area. If this occurs, select another frequency as explained below. (If the Meter Hold function hasbeen selected, one of the RF bars will be flashing, indicating the lowest RF level received.)Using the Automatic Scan Function to Set ReceiverFrequency Automatically1. Press the Mode/Set button once; then the “RF” and “AF” scales will disappear from the window and only the frequency will appear in the LCD window. (The receiver is now in the Menu mode.) See Figure D-2.2. Use the Up arrow button to reach Scan 1, Scan 2, or Scan 3. Press the Mode/Set button once to select one of these three Scan groups. The lowest frequency in the selected Scan group will appear in the LCD window.3. Press the Up arrow button to begin the scan. The word “SCAN1”, “SCAN2” or “SCAN3” will flash in the LCD window, depending on which Scan group you selected in step 2.4. The first available frequency will flash in the LCD window.To activate this frequency selection, press and holdthe Mode/Set button until the word “STORED” appears in the LCD window. (If you do not wish to complete this particularselection, just press the Mode/Set button once. The word “ESCAPE” will appear briefly in the window and the receiver will return to the Menu mode.)5. After you have activated your frequency selection (step 4), the “RF” and “AF” scales will reappear in the window, indicating the return to normal operation.6. If you are using multiple systems, after completing the first receiver's scan and frequency selection, set the transmitterto the same frequency (see Setting Transmitter Frequencyinstructions on page 10); leave the transmitter On, and run the next receiver’s automatic scan function. Always set a receiver-transmitter pair to the same frequency before using the automatic scan function to select a frequency for the next receiver.Setting Receiver Frequency Manually1. Press the Mode/Set button once; then only the frequency will appear in the LCD window. (The receiver is now in the Menu mode.) See Figure D-2.2. Press the Mode/Set button again; the Alert light will come on and the frequency in the window will flash. (The receiver is now in the Edit mode, Fig. D-3.)3. Use the Up/Down arrow buttons to change the frequency. Press either arrow for single steps, or hold down either arrow for rapid cycling through the band. Frequencies “wrap around” to the other end of the range when the top or bottom of the band is reached. Choose a frequency appropriate for your area, avoiding frequencies with active TV channels. (See the frequency listings on page 13.)4. To activate this frequency selection, press and holdthe Mode/Set button until the word “STORED”appears in the receiver’s window. (If you do not wish to complete this particular selection, just press the Mode/Set button once.The word “ESCAPE”will appear briefly in the window and the receiver will return to the Menu mode.)5. When finished entering a frequency, press the Down arrow button once to move to “QUIT”. Then press the Mode/Set button onceto exit the menu. The “RF”and “AF”scales will reappear in the window, indicating the return to normal operation.9See pages 18-19 for illustrations.
10System Operation (Continued)Transmitter On…Turn on the transmitter by pressing and holding thePower/Mute button (Fig. E/F) for a second or two, until the redpower indicator and the LCD window have come on.Setting Transmitter Frequency1. Press the Set button once and the small word “MENU”will appear above the frequency. Press the Set button again and the small flashingword “EDIT”will appear to the right of “MENU”. See Figures J-3 and J-4.2. Use the Up/Down arrow buttons to change the transmitter frequency. Press either arrow for single steps, or hold down either arrow for rapid cycling through the range. Frequencies “wrap around” when the top or bottom of the band is reached. Select the exactfrequency displayed on the receiver.3. To activate this frequency selection, press and holdthe Set button until the word “STORED”appears in the transmitter’s window. (If you do not wish to complete this selection, just press the Set button once:the word “ESCAPE”will appear briefly in the window and the transmitter will return to the Menu mode.)4. When finished entering a frequency, press the Up arrow button onceto move to “QUIT”. Then press the Set button onceto exit the menu. The word “MENU”in the transmitter window will go off, indicating the return to normal operation.When the transmitter is switched on and in normal operation,the receiver’s “RF”signal-level bars will display from bottom totop, with more bars indicating increased signal reception. Foroptimum performance at least four, and preferably five or more,of the RF indicators should be displayed.Setting LevelsCorrect adjustment of transmitter audio input, receiver audiooutput, and mixer/amplifier input and output levels is importantfor optimum system performance.Set Transmitter Audio Input LevelA 4-position audio input gain setting, selected through the function menu, serves to match the audio input level to thetransmitter for best modulation with minimum distortion.Available choices are +12 dB, +6 dB, 0 dB and –6 dB. Thedefault setting is +6 dB. Select the highest setting that does not result in over-modulation with the highest audio/instrumentinput levels (an AF indication on the receiver no higher than“0”); watch the receiver’s “AF”bar-graph “+3/+6”indicationsand the Alert light, to make certain that they are not triggered by the highest audio levels.The transmitter’s normally-on red LED power indicator will blinkoffif the peak audio input exceeds the maximum desirablelevel. RF Power AdjustmentRF power may be set to “RF HI”(30 mW nominal) or “RFLOW”(10 mW nominal) through the function menu. The defaultsetting is “RF LOW”. While the High setting normally providesmaximum operating range, the Low setting will help extend battery life. The Low setting may also be preferred in multi-channel systems, or when operating very close to the receiver,to reduce the possibility of interference or overload.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 the Audio-Technica professionaldivision. Extensive wireless information also is available on theAudio-Technica Web site at www.audio-technica.com.
See pages 18-19 for illustrations.Specifications†OVERALL SYSTEMUHF Operating FrequencyBand C: 541.500 to 566.375 MHzBand D: 655.500 to 680.375 MHzNumber of Channels 200 total per bandFrequency Stability ±0.005%, Phase Lock Loop frequency controlModulation Mode FMNormal Deviation ±10 kHzOperating Range 300' typicalOperating Temperature Range 41° F (5° C) to 113° F (45° C)Frequency Response 70 Hz to 15 kHzATW-R3100 RECEIVERReceiving System Dual independent receivers, automatic-switching diversityImage Rejection 60 dB nominal, 55 dB minimumSignal-to-noise Ratio 110 dB at 35 kHz deviation (IEC-weighted), maximum modulation 75 kHzTotal Harmonic Distortion ≤1% (10 kHz deviation at 1 kHz)Sensitivity 24 dBµV (S/N 60 dB at 5 kHz deviation, IEC-weighted)Intermediate Frequency 243.950 MHz, 10.7 MHzAudio Output Unbalanced: 50 mV (at 1 kHz, ±5 kHz deviation, 10k ohm load)Balanced: 32 mV (at 1 kHz, ±5 kHz deviation, 10k ohm load)Output ConnectorsUnbalanced:1/4" TS (“mono”) phone jackBalanced: XLRM-typePower Supply 120V AC 60 Hz, or 12-18V DC, 500 mA,center positive, with external supplyDimensions 8.27" (210.0 mm) W x 1.93" (49.0 mm) H x 6.93" (176.0 mm) DWeight 2.4 lbs (1.1 kg)Accessories Included AD1205AA 120V 60 Hz in-line AC adapter;two flexible UHF antennas; rack-mount adaptersATW-T310 UNIPAK™TRANSMITTERRF Power Output High: 30 mW; Low: 10 mW, nominalSpurious Emissions Under federal regulationsDynamic Range ≥110 dB, A-weightedInput Connections High impedance, low impedance, biasAntenna Tip ColorBand C: BlueBand D: GreenBatteries (not included) Two 1.5V AA alkalineCurrent Consumption High: 200 mA; Low: 150 mA, typicalBattery Life Approximately 6 hours (High); 8 hours (Low), depending on battery type and use patternDimensions 2.60" (66.0 mm) W x 3.43" (87.0 mm) H x 0.94" (24.0 mm) DNet Weight (without batteries) 2.8 oz (80 grams)ATW-T341 HANDHELD TRANSMITTERRF Power Output High: 30 mW; Low: 10 mW, nominalSpurious Emissions Under federal regulationsDynamic Range ≥110 dB, A-weightedMicrophone Element Dynamic cardioid (unidirectional)Batteries (not included) Two 1.5V AA alkalineCurrent Consumption High: 230 mA; Low: 180 mA, typicalBattery Life Approximately 6 hours (High); 8 hours (Low), depending on battery type and use patternDimensions 9.33" (237.0 mm) long, 1.89" (48.0 mm) diameterNet Weight (without batteries) 9.9 oz (280 grams)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.11
Optional System AccessoriesWIRELESS ESSENTIALS™ MICROPHONES AND CABLESAll Wireless Essentials accessories are terminated for use with ATW-T310and other UniPak™transmitters.AT829cW 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.AT851cW Surface-mount wide-range hemi-cardioid condenser microphone.AT857AMLcW 19" gooseneck cardioid microphone. Mounts to 5/8"-27 thread. Includes 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-DA550C UHF (540–565 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 3000 Series receivers. Mounts in a single 19" rack space. For use with ATW-R3100C (Band C) receivers.AEW-DA660D Same as AEW-DA550C except for 655-680 MHz operation. For use with ATW-R3100D (Band D) receivers.AT8630 Joining-plate kit allows rack-mounting two ATW-R3100 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-R3100D (Band D) 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.AT8390 Shielded audio cable with 1/4" to 1/4" phone plugs. Available in a variety of lengths. (Also available with one straight and one 90° phone plug as the AT8316.)AT8456a Quiet-Flex™ stand clamp for handheld transmitter,5/8"-27 threads.12
13TV Ch. Band C: 541.500 - 566.375 MHz25 --- --- --- --- 541.500 541.625 541.750 541.87526 542.000 542.125 542.250 542.375 542.500 542.625 542.750 542.87526 543.000 543.125 543.250 543.375 543.500 543.625 543.750 543.87526 544.000 544.125 544.250 544.375 544.500 544.625 544.750 544.87526 545.000 545.125 545.250 545.375 545.500 545.625 545.750 545.87526 546.000 546.125 546.250 546.375 546.500 546.625 546.750 546.87526 547.000 547.125 547.250 547.375 547.500 547.625 547.750 547.87527 548.000 548.125 548.250 548.375 548.500 548.625 548.750 548.87527 549.000 549.125 549.250 549.375 549.500 549.625 549.750 549.87527 550.000 550.125 550.250 550.375 550.500 550.625 550.750 550.87527 551.000 551.125 551.250 551.375 551.500 551.625 551.750 551.87527 552.000 552.125 552.250 552.375 552.500 552.625 552.750 552.87527 553.000 553.125 553.250 553.375 553.500 553.625 553.750 553.87528 554.000 554.125 554.250 554.375 554.500 554.625 554.750 554.87528 555.000 555.125 555.250 555.375 555.500 555.625 555.750 555.87528 556.000 556.125 556.250 556.375 556.500 556.625 556.750 556.87528 557.000 557.125 557.250 557.375 557.500 557.625 557.750 557.87528 558.000 558.125 558.250 558.375 558.500 558.625 558.750 558.87528 559.000 559.125 559.250 559.375 559.500 559.625 559.750 559.87529 560.000 560.125 560.250 560.375 560.500 560.625 560.750 560.87529 561.000 561.125 561.250 561.375 561.500 561.625 561.750 561.87529 562.000 562.125 562.250 562.375 562.500 562.625 562.750 562.87529 563.000 563.125 563.250 563.375 563.500 563.625 563.750 563.87529 564.000 564.125 564.250 564.375 564.500 564.625 564.750 564.87529 565.000 565.125 565.250 565.375 565.500 565.625 565.750 565.87530 566.000 566.125 566.250 566.375 --- --- --- ---3000 Series UHF Wireless Operating FrequenciesTV Ch. Band D: 655.500 - 680.375 MHz44 --- --- --- --- 655.500 655.625 655.750 655.87545 656.000 656.125 656.250 656.375 656.500 656.625 656.750 656.87545 657.000 657.125 657.250 657.375 657.500 657.625 657.750 657.87545 658.000 658.125 658.250 658.375 658.500 658.625 658.750 658.87545 659.000 659.125 659.250 659.375 659.500 659.625 659.750 659.87545 660.000 660.125 660.250 660.375 660.500 660.625 660.750 660.87545 661.000 661.125 661.250 661.375 661.500 661.625 661.750 661.87546 662.000 662.125 662.250 662.375 662.500 662.625 662.750 662.87546 663.000 663.125 663.250 663.375 663.500 663.625 663.750 663.87546 664.000 664.125 664.250 664.375 664.500 664.625 664.750 664.87546 665.000 665.125 665.250 665.375 665.500 665.625 665.750 665.87546 666.000 666.125 666.250 666.375 666.500 666.625 666.750 666.87546 667.000 667.125 667.250 667.375 667.500 667.625 667.750 667.87547 668.000 668.125 668.250 668.375 668.500 668.625 668.750 668.87547 669.000 669.125 669.250 669.375 669.500 669.625 669.750 669.87547 670.000 670.125 670.250 670.375 670.500 670.625 670.750 670.87547 671.000 671.125 671.250 671.375 671.500 671.625 671.750 671.87547 672.000 672.125 672.250 672.375 672.500 672.625 672.750 672.87547 673.000 673.125 673.250 673.375 673.500 673.625 673.750 673.87548 674.000 674.125 674.250 674.375 674.500 674.625 674.750 674.87548 675.000 675.125 675.250 675.375 675.500 675.625 675.750 675.87548 676.000 676.125 676.250 676.375 676.500 676.625 676.750 676.87548 677.000 677.125 677.250 677.375 677.500 677.625 677.750 677.87548 678.000 678.125 678.250 678.375 678.500 678.625 678.750 678.87548 679.000 679.125 679.250 679.375 679.500 679.625 679.750 679.87549 680.000 680.125 680.250 680.375 --- --- --- ---
143000 Series Frequency Scan Groups for Band C & Band DBand CBand C Scan Group 1 Band C Scan Group 2 Band C Scan Group 3TV Ch. Frequency – MHz * TV Ch. Frequency – MHz * TV Ch. Frequency – MHz *25 (None) 0 25 541.500 1 25 541.500 126 542.750 26 542.750 26 542.125 26 545.500 26 544.375 26 543.500 26 547.125 26 544.750 26 544.000 26 547.375 4 26 545.750 26 546.250 427 549.750 26 547.500 5 27 548.250 27 550.375 27 (None) 0 27 549.750 227 550.625 3 28 554.250 28 555.75028 557.250 28 556.125 28 556.62528 557.500 28 557.500 28 558.25028 559.250 28 559.375 4 28 559.375 428 559.500 4 29 560.000 29 560.12529 562.000 29 561.875 29 561.50029 563.375 29 562.250 29 564.00029 563.625 3 29 563.250 29 564.250 430 566.000 29 565.500 5 30 566.125 130 566.250 2 30 566.000 1Band DBand D Scan Group 1 Band D Scan Group 2 Band D Scan Group 3TV Ch. Frequency – MHz * TV Ch. Frequency – MHz * TV Ch. Frequency – MHz *44 655.500 1 44 655.875 1 44 655.50045 658.000 45 656.250 44 655.750 2 45 658.375 45 658.500 45 656.625 45 659.250 45 659.750 45 658.500 45 659.500 45 660.000 45 658.750 45 661.500 5 45 660.500 5 45 659.500 4 46 662.375 46 664.375 46 662.750 46 662.750 2 46 665.500 2 46 665.250 247 669.625 47 671.625 47 671.25047 671.750 2 47 672.000 2 47 672.37548 674.750 48 674.000 47 673.125 348 675.750 48 674.500 48 674.12548 676.125 48 675.750 48 674.50048 678.000 48 676.750 48 675.37548 678.250 48 678.250 5 48 678.62548 679.500 6 49 680.250 1 48 679.125 549 (None) 0 49 (None) 0 * Number of wireless frequencies in TV Channel.
151. 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. Avoid placing the receiver in a low or shielded location where the transmitter and receiver antennas are not visible to each other. If necessary, use remotely-located receiver antennas.5. Avoid placing the receiver near computers or other RF generating equipment.6. The receiver and transmitter must be set to the same frequency.7. A receiver cannot receive signals from two transmitters at the same time.8. Do not obstruct the handheld transmitter’s antenna (located at the base) or attached body-pack transmitter’s antenna with your hands.9. You need to change frequencies 1) when a strong interference signal is received, 2) when audio quality is poor due to weak RF, or 3) during multiple-system operation in order to select an interference-free frequency.10. Turn the transmitter off when not in use. Remove the batteries if the transmitter is not to be used for a period of time.Ten Tips to Obtain the Best ResultsFor future reference, please record your system information here:Receiver ATW-R3100___ S/NC/D Serial Number appears on the FCC label on the back of the receiver.Transmitter ATW-T310___ S/NC/D Serial Number appears on the FCC label on the back of the transmitter.ATW-T341___ S/NC/D Serial Number appears in a recess in the battery compartment of the transmitter.The advent of "digital TV" has greatly increased the number of TV broadcast transmitters in operation and has added a new anddifferent type of TV signal to the airwaves.Digital TV spreads its transmitted power fairly uniformly across an entire 6 MHz-wide TV channel, effectively “blocking” use ofany of the frequencies for wireless mic systems in the local area.By comparison, the original type of television transmission, “analog TV,” concentrates the broadcast power within certain fairlynarrow frequency ranges within the 6 MHz-wide TV channel. As a result, wireless systems usually can still operate on frequencies where the power is notconcentrated, even through an analog TV station is transmitting. This ability for wireless systems to “co-exist” with analog TV stations permits the use of many more frequencies than would seem to be available, justbased upon the number of “TV channels in use” locally.And while “analog vs. digital” does add a new complexity to wireless frequency selection and system design, it remains the casethat your wireless needs canbe achieved. Our website, www.audio-technica.com, offers a wide range of information about multi-channel operation and frequency selection. In addition, A-T’s resources are on call at any time to assist you in specifying,installing and troubleshooting large wireless systems.A word about "Digital TV"
16Receiver is not on (LCD window does not light).• Receiver Power switch is not pressed in.• Small DC power cord from included in-line power supply is not plugged into jack on back of receiver. (Use the cord hook to secure it.)• The in-line power supply is not plugged into AC power outlet.• AC power is not present at the AC outlet.Receiver is on (LCD window lights) •No sound •Alert light is OFF:✓“RF”, “AF”and “BATT” legends do not appear in LCD…• Receiver is in the Menu mode. [See p. 4.]✓“RF”and "AF"level meters both show good signals.• AF Level control on back of receiver not turned up (clockwise). [See p. 4.]Note: If the “AF”level meter shows a good signal on the receiver when the transmitter is receiving audio input, and the AF Level control is turned up, then the problem is in connections to or control settings on the mixer, amplifier, etc.✓Only “RF”level meter shows good signal; no “AF”signal.• No sound input to mic.• ATW-T310 body-pack only: Wrong input selected (“INST”or “MIC”). [See p. 6.]Receiver is on (LCD window lights) •No sound •Alert light is ON:✓“RF”, “AF”and “BATT”legends do not appear in LCD, and LCD is flashing…• Receiver is in the Edit mode. [See p. 4.]✓“RF”and “AF”level meters both show good signals.• The transmitter audio level is too high (“+3”/”+6”on receiver). [See p. 9.]• Batteries may be weak. (Check “BATT”fuel gauge.)✓Only “RF”level meter shows good signal; no “AF”signal.• Transmitter may be muted. (Note: Normally it takes several seconds for the Alert light to turn off/on after the transmitter mute is switched off/on.) [See p. 5.]✓Neither the “RF”nor the “AF”level meter shows any signal.• Receiver antennas not connected.• Transmitter is turned off.• Transmitter batteries are dead or missing.• Transmitter is set to a different frequency.• Transmitter and receiver not in same Band (C/D).Troubleshooting GuideReceiver is on (LCD window lights) •Distorted sound •Alert light is ON:✓“RF”and/or “AF”level meters may show good signals.• The transmitter audio level is too high (“+3”/”+6”on receiver). [See p. 9.]• Received RF level may be too low (only one or two bars).• Batteries may be weak; check “BATT”fuel gauge. (Sound may or may not be distorted.)Momentary loss of sound/noisy sound as transmitter ismoved around performing area.• Transmitter and receiver antennas not in line-of-sight (or perhaps too far apart). Adjust positions of units so they are visible to each other/closer together; use remote antennas located closer to the transmitter location.• Signal blockage or interference from large metal objects, other wireless units located too close and/or on incompatible frequencies, computer or lighting equipment.• Squelch setting may be set “tighter” than it needs to be. (Recommended squelch setting is the minimum/default value, 15 dB.) [See p. 5.]Tip: Use the Meter Hold function to help identify and resolve (or at least avoid) RF problem locations. [See p. 5.]With transmitter on, received signal is noisy or containsextraneous sounds.• Batteries may be weak. Check “BATT”fuel gauge and “RF”meter level.• Local TV transmissions on this frequency.• Nearby sources of RF interference, such as computers, lighting equipment, etc.• Two transmitters may be operating on the same frequency. Locate and turn one off or change its frequency.• In multiple-system use, two (or more) incompatible frequencies may have been selected.
Troubleshooting’s First Line of Defense: Factory-Default SettingsIncorrect settings on the receiver and/or transmitter can make the wireless system’s operation seem poor, or even “dead.” To eliminate the possibility that incorrect function settings are the source of problems, restore both the receiver and the transmitterto their factory-default settings.RECEIVER – To return allreceiver functions to their original factory-default settings:1. First, turn the receiver off.2.Hold in the Mode/Set buttonwhile pressing the Power switch to turn the receiver back on. The LCD will briefly show “RESET”, followed by “WAIT”(release the Mode/Set button), before commencing normal-mode operation with all factory-default settings restored.(3.) (If the default frequency is not useable in your area, set both the receiver and the transmitterto the same suitable frequency.)TRANSMITTER – To return alltransmitter functions to their factory-default settings:1. Press the Set button once to move to Menu mode.2. Press the Up arrow twice to move to “PRESET”in the LCD window.3. Press the Set button once and “LOAD”will appear in the LCD.4.Press and holdthe Set button until “DEF”appears in the LCD.5.Press and holdthe Set button until “LOADED”appears briefly in the LCD. The window will then revert to “PRESET”.6. Press the Down arrow once to move to “QUIT”.7. Press the Set button once to exit the Menu mode and return to normal operation, with all factory-default settings restored.(8.) (If the default frequency is not useable in your area, set both the receiver and the transmitter to the same suitable frequency.)17“Alert” ConditionsThe red Alert indicator on the receiver signals the user regarding a number of operating conditions.Transmitter conditions:✓No RF When no RF signal is received from transmitter.✓Weak RF When only one or two “RF” signal-strength bars are on.✓Transmitter Muted When the transmitter is in the Mute* mode.✓Transmitter Audio Too High When audio modulation level from the transmitter is close to the clipping point (AF +3/+6 bars).✓Batteries Weak When only one bar of the Battery* “fuel gauge” is on.Receiver conditions:✓Edit Mode When the receiver is in the Function Edit mode.* These functions use digital data supplied from the transmitter. It can take up to several seconds for the receiver display to be “updated” with the latest mute/unmute and battery status information. This is normaloperation for both the Alert light and the “BATT”indication.
Receiver Front PanelPOWER MODE/SETUHF SYNTHESIZED DIVERSITY RECEIVER ATW-R3100ALERT-TUNER-ABONOFFFigure BBattery DoorReceiver Rear PanelAF OUT UNBALANCEDAF OUT BALANCEDANT. AANT. BAF LEVELGROUND LIFT12~18V DC500 mAGROUNDUniPak Transmitter157589Figure CReceiver LCD WindowBATTRF AFMHz87654321+6+30-3-6-9-16-20MHzD-1. Normal Receiver Operation(Transmitter off)D-2. Menu Mode (Frequency)D-3. Edit Mode (Frequency)Figure DLCD WindowFigure E16711 12 13 1410AntennaAudio Input JackMounting ClipSet ButtonPower/Mute ButtonUp/Down ArrowsSliding Control Cover (3-position)Power-on LED18MHzFlashing234Band C: BlueBand D: Green
Handheld Transmitter ExteriorFigure GFigure F19LCD WindowPower-on LEDOpening Handheld TransmitterHandheld Transmitter InteriorFigure HSETLCDWindowPower-onLEDPower/MuteButtonAntenna HousingUniPak Battery DoorTransmitter LCD WindowJ-1. Normal Operation* ATW-T310 only: “INST”J-2. Operation with Mute On J-4. Edit Mode (Frequency)Figure JBATT MICInstalling Handheld Transmitter BatteriesFigure MSerial NumberStart from this end to remove batteriesFigure KInstalling UniPak Transmitter BatteriesFigure LJ-3. Menu Mode (Frequency)▼Up/DownArrowsSet ButtonBATT MUTE MICBATT MICMENUBATT MICEDITFlashing▼*▼▼▼
Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224 330/686-2600 www.audio-technica.comP2323-03410 P51733 ©2004 Audio-Technica U.S., Inc. Printed in ChinaOne-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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