3000 Series Professional

UHF Wireless Systems

ATW-3110a UniPak

™

Transmitter System

ATW-3141a Handheld Dynamic Microphone System

Installation and Operation

Professional UHF Wireless Systems

Installation and Operation

2

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 conformité 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.

CAUTION! 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 or moisture.

The circuits inside the receiver and transmitter have been precisely adjusted for optimum performance and compliance with federal regulations. Do not attempt to open the receiver or transmitter. To do so will void the warranty, and may cause improper operation.

Notice to individuals with implanted cardiac pacemakers or AICD devices:

Any source of RF (radio frequency) energy may interfere with normal functioning of the implanted device. All wireless microphones have low-power transmitters (less than 0.05

watts output) which are unlikely to cause difficulty, especially if they are at least a few inches away. However, since a

“body-pack” mic transmitter typically is placed against the body, we suggest attaching it at the belt, rather than in a shirt pocket where it may be immediately adjacent to the medical device. Note also that any medical-device disruption will cease when the RF transmitting source is turned off. Please contact your physician or medical-device provider if you have any questions, or experience any problems with the use of this or any other RF equipment.

Introduction

Thank you for choosing an Audio-Technica professional wireless system. You have joined thousands of other satisfied customers who have chosen our products because of their quality, performance and reliability. This Audio-Technica wireless microphone system is the successful result of years of design and manufacturing 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)

For simplicity, model numbers used throughout the manual will reference only the basic model number without the “C” or “D” band indications.

Each wireless system includes a receiver and either a bodypack or handheld transmitter. Individual components are also available separately.

All 3000 Series components feature soft-touch controls for quick, easy access to a formidable range of functions; an LCD information display in each unit provides convenient visual indication of unit settings and operation.

The ATW-R3100 receiver is equipped with automatic frequency scanning for easy set-up. It also features true diversity reception. Two antennas feed two completely independent RF sections on the same frequency; automatic logic circuitry continuously compares and selects the superior received signal, providing better sound quality and reducing the possibility of interference and dropouts. Soft-touch controls provide convenient access to a variety of functions, while an LCD information display provides constant monitoring of system operation, including indication of the transmitter’s battery status. The receiver is half-width for a standard 1U 19" rack mount; rack-mount adapters are included. Two receivers can be mounted side by side, using an optional AT8630 joining-plate kit.

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, as well as Hi-Z instrument pickups. In addition to its programmable functions, the transmitter features a three-position sliding cover to limit access, if desired, to just the Power/Mute button, or to no controls, as appropriate for the application and user.

The ATW-T341 handheld dynamic microphone/transmitter features the same element used in the Artist Elite

®

AE4100 dynamic handheld microphone created for professional livesound venues.

Transmitters in the 3000 Series use two 1.5V AA batteries for economical operation and wide availability. The receiver and both transmitters have “fuel gauge” battery condition indicators with low-battery warnings.

An advanced Digital Tone Lock™ tone squelch system in the

ATW-R3100 receiver opens only when a 3000 Series transmitter is detected, reducing the possibility of interference. As a result, 3000 Series transmitters and receivers must be used together and should not be used with components from other Audio-Technica wireless systems, or with those of other manufacturers.

Please note that in multiple-system applications there must be a transmitter-receiver combination set to a separate frequency for each input desired (only one transmitter for each receiver).

Because the wireless frequencies are within UHF TV frequency bands, only certain operating frequencies may be useable in a particular geographic area. System operating frequencies will be found on page 13.

Receiver Installation

Location

For 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 metal surface to minimize reflections. The transmitter should be at least 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 from large metal objects.

Antennas

Attach the included pair of UHF antennas to the antenna input jacks. 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 quality

RF cables in four lengths, as well as remote antennas; see the

Optional System Accessories section on page 12.

Output Connections

There are two audio outputs on the back panel: balanced

(32 mV) and unbalanced (50 mV). Use shielded audio cable for the connection between the receiver and the mixer. If the input 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 on the back panel to the mixer. The two isolated audio outputs permit simultaneous feeds to both unbalanced and balanced inputs. For example, both a guitar amp and a mixer can be driven by the receiver.

Power Connections

Connect the included AD1205AA in-line AC adapter to the DC power input on the back of the receiver. Loop the small cord from the DC plug over the cord hook above the jack, to keep the 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 the receiver is controlled by the front-panel Power switch.

(Note: Units supplied to countries with 230V mains should include an in-line AC adapter appropriate for that country.

Use the AD1205AA adapter only with 120V 60 Hz AC power sources.)

Figure A

See pages 18-19 for illustrations.

3

Receiver Controls and Functions

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 RF signal-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.

4

15. CORD HOOK: Loop the small DC cord around the cord hook to keep the DC plug from pulling out accidentally.

Power On/Off

To turn the receiver on, press in the Power switch. The Alert light and the LCD window will come on (about 1-2 seconds).

The operating frequency will be displayed in the window after the power-up sequence. To turn the receiver off, press the

Power switch again.

LCD Window

The LCD (Liquid Crystal Display) presents a great deal of setup and operating information clearly and conveniently. (See Figure

D for examples.)

Up/Down Arrow Buttons

In conjunction with the Mode/Set button, the arrow buttons permit moving through the menu of functions, and choice of settings within each function.

Mode/Set Button

The Mode/Set button shifts the receiver from normal operation into Menu mode and, in conjunction with the Up/Down arrow buttons, permits selection of different features and changing of their stored values in the Edit mode.

How to Make Setting Changes

1.

From the normal operating mode, press the Mode/Set button once to 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 hold the

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 once to 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 Settings

To return all the receiver functions to their original factorydefault settings, first turn the receiver off. Then hold in the

Mode/Set button while pressing the Power switch. The LCD will briefly show “RESET”, followed by “WAIT” (release the

Mode/Set button), before commencing normal-mode operation at the default settings.

Receiver Controls and Functions

(Continued)

When 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 approximately 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 output restored.

High-pass Filter

Internal 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. The default setting is Off (“HP OFF”). Increasing the slope of the high-pass filter further suppresses unwanted low frequencies, while maintaining the frequency response in the desired audio range.

Meter Hold Setting

When 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 diagnosing operating problems. The default setting is Off

(“MH OFF”).

When the Meter Hold is On, it is possible to reset it – to obtain a new set of RF and AF readings – without turning it off-and-on using the Menu/Edit functions. Simply press the transmitter’s

Power/Mute button once (to mute the transmitter) and wait until the receiver’s Alert light comes on, indicating the Mute condition. Then press the transmitter’s Power/Mute button once again, to un-mute the transmitter. After the Alert light goes out, a new set of min/max RF/AF readings will be indicated on the bar-meters. (Note that, depending upon the digital updatingand-confirming sequence of the Mute condition data from the transmitter, it may take several seconds for the Alert light condition to change. The Meter Hold function is not reset until the Alert light has turned on, then turned off.)

Digital Tone Lock ™ Squelch

The 3000 Series employs a unique Digital Tone Lock squelch system 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 on the transmitter’s battery condition and mute status back to the receiver for display.

The squelch level is adjustable from 15 dB (the default value) to

39 dB in 6 dB steps. Increasing the squelch level – also called

“tightening the squelch” – can cause a reduction in useable range of the wireless transmitter, so use the lowest value that reliably mutes the unwanted RF signals. (If interference is a problem, first consider trying a different frequency.)

Receiver Functions

Function Menu Default Setting* Choices (Edit) ▲▼ Wrap-around**

(Receiver powers-up at Frequency)

▲▼ Frequency

▲▼ High-pass Filter

▲▼ Meter Hold

▲▼ Squelch

▲ Scan 1

▲

Scan 2

Lowest in band

HP OFF

MH OFF

SQ 15 dB

†

Lowest in frequency group

Lowest in frequency group

200 discrete frequencies

HP OFF HP –6 HP –12 HP –18

MH OFF MH ON

SQ 15 dB to SQ 39 dB in 6 dB steps

All frequencies in Scan 1 group

Yes

No

Yes

No

No

All frequencies in Scan 2 group No

▲ Scan 3

▲▼ Quit (exit Menu)

Lowest in frequency group

QUIT

All frequencies in Scan 3 group

Press Mode/Set to exit

No

--

* 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 Functions

See pages 18-19 for illustrations.

5

6

Refer to Figures E, F, G and H on pages 18 and 19 for an overview of transmitter features and controls.

LCD Window

The Liquid Crystal Display presents a great deal of setup and operating information clearly and conveniently (See examples in Fig. J). The LCD in the transmitters is designed for greatest contrast and best viewing with the window rotated somewhat away from the viewer (about 30 degrees), not straight-on, for a more convenient holding/viewing position.

Power/Mute Button

The transmitters have a combination Power and Mute switch.

When used in combination with the programmed choices explained below, the various functions available to the transmitter user may be tailored to fit personal preferences or particular situations of use.

Power On/Off

To turn the transmitter on, press and hold the Power/Mute button until the red power indicator and the LCD window come on (about 1-2 seconds). The operating frequency will show in the window after the power-up sequence.

To turn the transmitter off, press and hold the Power/Mute button again, until the red power indicator and the LCD window are extinguished (about 1-2 seconds). The LCD window will show “PWR.OFF” before shutdown.

Mute Off/On

When the transmitter is muted, it produces RF with no audio signal modulation. When the transmitter is un-muted, it produces both RF and audio.

To mute the transmitter (cut off the audio, but continue the RF output), press and release the Power/Mute button once. A small

“MUTE” will appear in the LCD window, just below the frequency (Fig. J-2).

To un-mute the transmitter (restore the audio), press and release the Power/Mute button once again. The “MUTE” will disappear from the LCD window.

Power/Mute Locks

Programmable Power/Mute Locks limit the functioning of the

Power/Mute button as desired for particular users and/or applications. Power can be locked On; Mute can be locked Off.

Selection of the desired locks, if any, is made through the function menu:

Setting

NO.LOC

ALL.LOC

MUT.LOC

Description

The normal Power and Mute functions are fully operational.

Both 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.LOC must be re-accessed and the setting changed to turn the transmitter off.

In this mode, the audio cannot be muted. The

Power functioning is unaffected. (If MUT.LOC is 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

PWR.LOC

Power is locked On as of the time “PWR.LOC” is applied. The Mute functioning is unaffected.

Note: When in the PWR.LOC mode, the transmitter may be turned off by: (1) Re-accessing the .

LOC Menu 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.LOC mode. (Only the

PWR. LOC function 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 locked out, the LCD will display “LOC.KED” briefly, then return to its previously-displayed contents.

Audio Input Selector

The UniPak™ body-pack transmitter provides input connections for both low-impedance (Lo-Z) microphones and highimpedance (Hi-Z) instruments. A wide range of Audio-Technica

Wireless 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 – is made through the function menu. Depending upon the input selected, 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 Level

A 4-position audio input gain setting, selected through the function menu, serves to match the audio input level to the transmitter for best modulation with minimum distortion.

Available choices are +12 dB, +6 dB, 0 dB and –6 dB. The default value is +6 dB. Select the highest setting that does not result in over-modulation with the highest audio/instrument input levels (an AF indication on the receiver no higher than

“0”); watch the receiver’s “AF” meter “+3/+6” indications and the Alert light to make certain they are not triggered by the highest audio levels.

The transmitter’s normally-on red LED power indicator will blink off if the peak audio input exceeds the maximum desirable level.

Restore Default Settings

A “PRESET” selection in the menu permits resetting of all transmitter 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 hold the Set button until “DEF” appears in the

LCD.

5.

Press and hold the 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.

Transmitter Controls And Functions

(Continued)

UniPak Transmitter Functions

Function Menu Default Setting Choices (Edit) ▲▼

(Transmitter powers-up at Frequency)

▲▼ Frequency

▲▼ RF Power

Lowest in band

RF LOW

▲▼ Audio Input Level

+6 dB

▲▼ Power/Mute Locks

NO.LOC

†

▲▼ Input Select

▲▼ Reset to Defaults

▲▼ Quit (exit Menu)

MIC

PRESET

QUIT

200 discrete frequencies

RF LOW RF HI

–6 dB 0 dB +6 dB +12 dB

NO.LOC

MIC

LOAD

ALL.LOC MUT.LOC PWR.LOC

INSTR

(b) hold until:

Press Set to exit

DEF (c) hold until: LOADED

** 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 Functions

Wrap-around**

Yes

Yes

No

Yes

Yes

--

--

Handheld Transmitter Functions

Function Menu Default Setting Choices (Edit) ▲▼

(Transmitter powers-up at Frequency)

▲▼ Frequency

Lowest in band †

▲▼ RF Power

▲▼ Audio Input Level

RF LOW

+6 dB

▲▼ Power/Mute Locks

NO.LOC

▲▼ Reset to Defaults

▲▼ Quit (exit Menu)

PRESET

QUIT

200 discrete frequencies

RF LOW

NO.LOC

LOAD

RF HI

–6 dB 0 dB +6 dB +12 dB

ALL.LOC MUT.LOC PWR.LOC

(b) hold until:

DEF (c) hold until: LOADED

Press 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 Functions

Wrap-around**

Yes

Yes

No

Yes

--

--

See pages 18-19 for illustrations.

7

8

Transmitter Setup

Battery Selection and Installation

Each 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 Installation

1.

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.)

UniPak Transmitter Input Connection

Connect an audio input device (microphone or guitar cable) to the audio input jack on the bottom of the transmitter. A number of Audio-Technica professional microphones and cables are available separately, pre-terminated with a UniPak input connector (see “Optional System Accessories” on page 12). The cable connector latches automatically when inserted into the transmitter jack. To unlatch and remove the connector, simply pull up on the connector’s knurled metal collar.

2.

Observe correct polarity as marked on the metal contacts on the door and carefully insert two fresh

1.5V AA alkaline batteries (Fig. L).

3.

Close the door, making certain the latch clicks securely in place.

UniPak Transmitter Antenna

The UniPak transmitter includes a field-replaceable flexible antenna. For best results, allow the antenna to hang freely and full length from the bottom of the transmitter. If the received signal 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 to make certain it is snugly attached (finger-tight).

Do not change the length of the transmitting antenna.

Handheld Transmitter Battery Installation

1.

While holding the lower body cover (near the LCD window), grasp the upper part of the transmitter body just below the 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.

Handheld Transmitter Antenna

The antenna for the handheld mic/transmitter is in the black, non-metallic section at the bottom of the unit (Fig. F). For best results, hold the mic/transmitter naturally, around its painted metal case; holding or otherwise covering the antenna housing may affect operating range.

2.

Observe correct polarity as marked inside the battery compartment and 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.

UniPak Transmitter Mounting Clip

The UniPak transmitter’s mounting clip may be installed with the case positioned either “up” or “down,” depending upon which is preferred for the application. To turn the clip around, spring the ends of the clip out of the two holes on the sides of the transmitter case (Fig. E) and reinstall it facing in the opposite direction.

Note: Remove batteries from the handheld transmitter starting at the bottom (– end) of the top battery (Fig. M). The top

(+ end) of the top battery is captured in a recess and will not come straight out.

Battery Condition Indicator

After the batteries are installed, turn the power on by pressing and holding the Power/Mute button. The small red power-on

LED (Fig. E/F) should light and the LCD window should come on. If this does not happen, the batteries are installed incorrectly or they are dead. The transmitter’s “fuel gauge” battery indicator displays a maximum of four bar segments. When it flashes “LOW.BAT”, the batteries should be replaced immediately to ensure continued operation. (The receiver also displays transmitter battery condition in the LCD window with bar segments; the Alert indicator comes on to warn of a low-battery condition.)

System Operation

Switch on the receiver. Do not switch on the transmitter yet.

Selecting/Setting Frequency

Selection of the desired operating frequency is made through the function menus. It’s usually best to start by setting the receiver’s frequency, to determine there is no local interference on that frequency. Then, always make certain to set the transmitter to the receiver’s exact frequency. The receiver’s unique

Digital Tone Lock system squelches the audio only, permitting any RF energy on the frequency to show on the “RF” bar-meter.

Setting Receiver Frequency Manually

1.

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.)

Note: It’s often convenient to start with the factory-default frequency, if there is no TV station on Channel 25 (for Band C systems) or Channel 44 (for Band D systems).

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.)

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, there may be RF interference in the area. If this occurs, select another frequency as explained below. (If the Meter Hold function has been selected, one of the RF bars will be flashing, indicating the lowest RF level received.)

4.

To activate this frequency selection, press and hold the

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.)

Using the Automatic Scan Function to Set Receiver

Frequency Automatically

1.

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.

5.

When finished entering a frequency, press the Down arrow button once to move to “QUIT”. Then press the Mode/Set button once to exit the menu. The “RF” and “AF” scales will reappear in the window, indicating the return to normal operation.

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 hold the

Mode/Set button until the word “ STORED” appears in the

LCD 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.

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 transmitter to the same frequency (see Setting Transmitter Frequency instructions 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.

See pages 18-19 for illustrations.

9

10

Transmitter On…

Turn on the transmitter by pressing and holding the

Power/Mute button (Fig. E/F) for a second or two, until the red power indicator and the LCD window have come on.

Setting Transmitter Frequency

1.

Press the Set button once and the small word “MENU” will appear above the frequency. Press the Set button again and the small flashing word “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 exact frequency displayed on the receiver.

3.

To activate this frequency selection, press and hold the

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 once to move to “QUIT”. Then press the Set button once to 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 to top, with more bars indicating increased signal reception. For optimum performance at least four, and preferably five or more, of the RF indicators should be displayed.

Setting Levels

Correct adjustment of transmitter audio input, receiver audio output, and mixer/amplifier input and output levels is important for optimum system performance.

System Operation

(Continued)

Set Transmitter Audio Input Level

A 4-position audio input gain setting, selected through the function menu, serves to match the audio input level to the transmitter for best modulation with minimum distortion.

Available choices are +12 dB, +6 dB, 0 dB and – 6 dB. The default setting is +6 dB. Select the highest setting that does not result in over-modulation with the highest audio/instrument input levels (an AF indication on the receiver no higher than

“0”); watch the receiver’s “AF” bar-graph “+3/+6” indications and 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 blink off if the peak audio input exceeds the maximum desirable level.

RF Power Adjustment

RF power may be set to “RF HI” (30 mW nominal) or “RF

LOW” (10 mW nominal) through the function menu. The default setting is “RF LOW”. While the High setting normally provides maximum operating range, the Low setting will help extend battery life. The Low setting may also be preferred in multichannel systems, or when operating very close to the receiver, to reduce the possibility of interference or overload.

RF Interference

Please note that wireless frequencies are shared with other radio services. According to Federal Communications

Commission regulations, “Wireless microphone operations are unprotected from interference from other licensed operations in the band. If any interference is received by any Government or non-Government operation, the wireless microphone must cease operation...”

If you need assistance with operation or frequency selection, please contact your dealer or the Audio-Technica professional division. Extensive wireless information also is available on the

Audio-Technica Web site at www.audio-technica.com.

Specifications

†

OVERALL SYSTEM

UHF Operating Frequency

Band C:

Band D:

Number of Channels

Frequency Stability

541.500 to 566.375 MHz

655.500 to 680.375 MHz

200 total per band

Modulation Mode

Normal Deviation

±0.005%, Phase Lock Loop frequency control

FM

±10 kHz

Operating Range 300' typical

Operating Temperature Range 41° F (5° C) to 113° F (45° C)

Frequency Response 70 Hz to 15 kHz

ATW-R3100 RECEIVER

Receiving System

ATW-T310 UNIPAK ™ TRANSMITTER

RF Power Output High: 30 mW; Low: 10 mW, nominal

Spurious Emissions

Dynamic Range

Under federal regulations

≥

110 dB, A-weighted

High impedance, low impedance, bias Input Connections

Antenna Tip Color

Band C:

Band D:

Blue

Green

Batteries (not included)

Current Consumption

Battery Life

Two 1.5V AA alkaline

High: 200 mA; Low: 150 mA, typical

Approximately 6 hours (High); 8 hours

(Low), depending on battery type and use pattern

Dimensions 2.60" (66.0 mm) W x 3.43" (87.0 mm) H x 0.94" (24.0 mm) D

Net Weight (without batteries) 2.8 oz (80 grams)

Image Rejection

Signal-to-noise Ratio

Total Harmonic Distortion

Sensitivity

Intermediate Frequency

Audio Output

Unbalanced:

Balanced:

Output Connectors

Unbalanced:

Balanced:

Power Supply

Dimensions

Weight

Accessories Included

Dual independent receivers, automaticswitching diversity

60 dB nominal, 55 dB minimum

110 dB at 35 kHz deviation

(IEC-weighted), maximum modulation

75 kHz

≤

1% (10 kHz deviation at 1 kHz)

24 dBµV (S/N 60 dB at 5 kHz deviation,

IEC-weighted)

243.950 MHz, 10.7 MHz

50 mV (at 1 kHz, ±5 kHz deviation,

10k ohm load)

32 mV (at 1 kHz, ±5 kHz deviation,

10k ohm load)

1 /

4

" TS (“mono”) phone jack

XLRM-type

120V AC 60 Hz, or 12-18V DC, 500 mA, center positive, with external supply

8.27" (210.0 mm) W x 1.93" (49.0 mm) H x 7.20" (183.0 mm) D

2.4 lbs (1.1 kg)

AD1205AA 120V 60 Hz in-line AC adapter; two flexible UHF antennas; rack-mount adapters

ATW-T341 HANDHELD TRANSMITTER

RF Power Output High: 30 mW; Low: 10 mW, nominal

Spurious Emissions

Dynamic Range

Microphone Element

Batteries (not included)

Current Consumption

Battery Life

Under federal regulations

≥

110 dB, A-weighted

Dynamic cardioid (unidirectional)

Two 1.5V AA alkaline

High: 230 mA; Low: 180 mA, typical

Dimensions

Approximately 6 hours (High); 8 hours

(Low), depending on battery type and use pattern

9.33" (237.0 mm) long, 1.89" (48.0 mm) diameter

Net 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.

See pages 18-19 for illustrations.

11

12

WIRELESS ESSENTIALS ™ MICROPHONES AND CABLES

All Wireless Essentials accessories are terminated for use with ATW-T310 and other UniPak ™ transmitters.

AT829cW

MT830cW

Miniature cardioid condenser lavalier microphone.

Includes clothing clip and windscreen.

Miniature omnidirectional condenser lavalier microphone. 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

AT898cW

AT899cW

Headworn noise-canceling condenser microphone.

Includes windscreen and cable clip.

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.

Subminiature omnidirectional condenser lavalier microphone.

Includes AT899AK accessory kit.

AT899cW-TH “Theater” model, same as AT899cW except beige color mic and cable concealment. Includes AT899AK-TH accessory kit.

ATM35cW Cardioid condenser instrument microphone.

Includes AT8418 clip-on instrument mount.

ATM73cW

ATM75cW

Headworn cardioid condenser microphone.

Includes windscreen.

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.

Optional System Accessories

RECEIVER ACCESSORIES

AEW-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 passthrough 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, frontmount 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

ATW-A49

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.

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

RF Cables

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.

Low-loss design, 50 ohm impedance, with BNC-to-BNC connectors:

AC12

AC25

RG58-type cable (12')

RG8-type cable (25')

AC50 RG8-type cable (50')

AC100 RG8-type cable (100')

TRANSMITTER ACCESSORIES

AT8114 Foam windscreen for handheld transmitter.

AT8141

AT8390

Water-resistant pouch for UniPak transmitter.

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.

665.000

666.000

667.000

668.000

669.000

670.000

671.000

672.000

673.000

674.000

---

656.000

657.000

658.000

659.000

660.000

661.000

662.000

663.000

664.000

675.000

676.000

677.000

678.000

679.000

680.000

46

46

46

47

47

47

45

46

46

46

TV Ch.

44

45

45

45

45

45

48

48

48

48

48

49

47

47

47

48

3000 Series UHF Wireless Operating Frequencies

---

542.000

543.000

544.000

545.000

546.000

547.000

548.000

549.000

550.000

551.000

552.000

553.000

554.000

555.000

556.000

557.000

558.000

559.000

560.000

561.000

562.000

563.000

564.000

565.000

566.000

27

27

28

28

28

28

27

27

27

27

TV Ch.

25

26

26

26

26

26

26

29

29

29

29

30

28

28

29

29

---

542.125

543.125

544.125

545.125

546.125

547.125

548.125

549.125

550.125

551.125

552.125

553.125

554.125

555.125

556.125

557.125

558.125

559.125

560.125

561.125

562.125

563.125

564.125

565.125

566.125

558.250

559.250

560.250

561.250

562.250

563.250

564.250

565.250

566.250

548.250

549.250

550.250

551.250

552.250

553.250

554.250

555.250

556.250

557.250

---

542.250

Band C: 541.500 - 566.375 MHz

--541.500

542.375

542.500

543.250

544.250

543.375

544.375

543.500

544.500

545.250

546.250

547.250

545.375

546.375

547.375

545.500

546.500

547.500

548.375

549.375

550.375

551.375

552.375

553.375

554.375

555.375

556.375

557.375

548.500

549.500

550.500

551.500

552.500

553.500

554.500

555.500

556.500

557.500

558.375

559.375

560.375

561.375

562.375

563.375

564.375

565.375

566.375

558.500

559.500

560.500

561.500

562.500

563.500

564.500

565.500

---

541.625

542.625

543.625

544.625

545.625

546.625

547.625

548.625

549.625

550.625

551.625

552.625

553.625

554.625

555.625

556.625

557.625

558.625

559.625

560.625

561.625

562.625

563.625

564.625

565.625

---

541.750

542.750

543.750

544.750

545.750

546.750

547.750

548.750

549.750

550.750

551.750

552.750

553.750

554.750

555.750

556.750

557.750

558.750

559.750

560.750

561.750

562.750

563.750

564.750

565.750

---

541.875

542.875

543.875

544.875

545.875

546.875

547.875

548.875

549.875

550.875

551.875

552.875

553.875

554.875

555.875

556.875

557.875

558.875

559.875

560.875

561.875

562.875

563.875

564.875

565.875

---

665.125

666.125

667.125

668.125

669.125

670.125

671.125

672.125

673.125

674.125

---

656.125

657.125

658.125

659.125

660.125

661.125

662.125

663.125

664.125

675.125

676.125

677.125

678.125

679.125

680.125

665.250

666.250

667.250

668.250

669.250

670.250

671.250

672.250

673.250

674.250

---

656.250

Band D: 655.500 - 680.375 MHz

--655.500

656.375

656.500

657.250

658.250

659.250

660.250

657.375

658.375

659.375

660.375

657.500

658.500

659.500

660.500

661.250

662.250

663.250

664.250

661.375

662.375

663.375

664.375

661.500

662.500

663.500

664.500

675.250

676.250

677.250

678.250

679.250

680.250

665.375

666.375

667.375

668.375

669.375

670.375

671.375

672.375

673.375

674.375

675.375

676.375

677.375

678.375

679.375

680.375

675.500

676.500

677.500

678.500

679.500

---

665.500

666.500

667.500

668.500

669.500

670.500

671.500

672.500

673.500

674.500

665.625

666.625

667.625

668.625

669.625

670.625

671.625

672.625

673.625

674.625

655.625

656.625

657.625

658.625

659.625

660.625

661.625

662.625

663.625

664.625

675.625

676.625

677.625

678.625

679.625

---

665.750

666.750

667.750

668.750

669.750

670.750

671.750

672.750

673.750

674.750

655.750

656.750

657.750

658.750

659.750

660.750

661.750

662.750

663.750

664.750

675.750

676.750

677.750

678.750

679.750

---

665.875

666.875

667.875

668.875

669.875

670.875

671.875

672.875

673.875

674.875

655.875

656.875

657.875

658.875

659.875

660.875

661.875

662.875

663.875

664.875

675.875

676.875

677.875

678.875

679.875

---

13

14

3000 Series Frequency Scan Groups for Band C & Band D

Band C

28

28

28

28

29

29

29

30

30

Band C Scan Group 1

TV Ch. Frequency – MHz

25

26

(None)

542.750

26

26

26

27

27

27

545.500

547.125

547.375

549.750

550.375

550.625

557.250

557.500

559.250

559.500

562.000

563.375

563.625

566.000

566.250

*

0

4

3

4

3

2

28

28

28

29

29

29

29

29

30

Band C Scan Group 2

TV Ch.

Frequency – MHz

25

26

541.500

542.750

26

26

26

26

27

28

544.375

544.750

545.750

547.500

(None)

554.250

556.125

557.500

559.375

560.000

561.875

562.250

563.250

565.500

566.000

*

1

5

0

4

5

1

28

28

28

29

29

29

29

30

Band C Scan Group 3

TV Ch. Frequency – MHz

25

26

541.500

542.125

26

26

26

27

27

28

543.500

544.000

546.250 4

548.250

549.750

555.750

2

*

1

556.625

558.250

559.375

560.125

561.500

564.000

564.250

566.125

4

4

1

Band D

46

47

47

48

48

48

48

48

48

49

Band D Scan Group 1

TV Ch.

Frequency – MHz

44

45

655.500

658.000

45

45

45

45

46

658.375

659.250

659.500

661.500

662.375

662.750

669.625

671.750

674.750

675.750

676.125

678.000

678.250

679.500

(None)

*

1

5

2

2

46

47

47

48

48

48

48

48

49

Band D Scan Group 2

TV Ch.

Frequency – MHz

44

45

655.875

656.250

45

45

45

45

46

658.500

659.750

660.000

660.500

664.375

5

665.500 2

671.625

672.000

2

674.000

674.500

675.750

676.750

678.250

680.250

5

1

*

1

6

0

* Number of wireless frequencies in TV Channel.

46

47

47

47

48

48

48

48

48

49

Band D Scan Group 3

TV Ch. Frequency – MHz

44

44

655.500

655.750

45

45

45

45

46

656.625

658.500

658.750

659.500

662.750

665.250

671.250

672.375

673.125

674.125

674.500

675.375

678.625

679.125

(None)

*

2

4

2

3

5

0

Ten Tips to Obtain the Best Results

1.

Use only fresh alkaline batteries. Do not use “general purpose” (carbon-zinc) batteries.

6.

The receiver and transmitter must be set to the same frequency.

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).

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.

4.

5.

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.

Avoid placing the receiver near computers or other RF generating equipment.

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.

A word about "Digital TV"

The advent of "digital TV" has greatly increased the number of TV broadcast transmitters in operation and has added a new and different 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 of any 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 fairly narrow frequency ranges within the 6 MHz-wide TV channel. As a result, wireless systems usually can still operate on frequencies where the power is not concentrated, 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, just based 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 case that your wireless needs can be 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.

For future reference, please record your system information here:

Receiver

ATW-R3100___

C/D

S/N

Serial Number appears on the FCC label on the back of the receiver.

Transmitter

ATW-T310___

C/D

S/N

Serial Number appears on the FCC label on the back of the transmitter.

ATW-T341___

C/D

S/N

Serial Number appears in a recess in the battery compartment of the transmitter.

15

16

Receiver 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 Guide

Receiver 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 is moved 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 contains extraneous 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 Settings

Incorrect 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 transmitter to their factory-default settings.

RECEIVER – To return

all receiver functions to their original factory-default settings:

1.

First, turn the receiver off.

2.

Hold in the Mode/Set button while 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 transmitter to the same suitable frequency.)

TRANSMITTER – To return

all transmitter 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 hold the Set button until “DEF” appears in the LCD.

5.

Press and hold the 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.)

“Alert” Conditions

The 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 normal operation for both the Alert light and the

“BATT” indication.

17

18

Figure B

7

Receiver Front Panel

ON

OFF

POWER

ALERT

-TUNER-

A

B

UHF SYNTHESIZED DIVERSITY RECEIVER ATW-R3100

MODE/SET

1 2

3

4 5

6

7

Receiver Rear Panel

Figure C

ANT. B

8

10

15

AF

LEVEL

ANT. A

GROUND

GROUND LIFT

AF OUT

BALANCED

AF OUT

UNBALANCED

12~18V

DC500 mA

9 11

12 13

14

Figure D

3

2

5

4

1

8

7

6

RF BATT

Receiver LCD Window

MHz

AF

+6

+3

0

-3

-6

-9

-16

-20

D-1. Normal Receiver Operation

(Transmitter off)

Figure E

UniPak Transmitter

Band C: Blue

Band D: Green

Antenna

Power-on LED

MHz

D-2. Menu Mode (Frequency)

LCD Window

Power/Mute

Button

Up/Down

Arrows

Sliding

Control Cover

(3-position)

Audio Input Jack

Mounting Clip

Set Button

Battery Door

MHz

D-3. Edit Mode (Frequency)

Flashing

Figure F

Power/Mute

Button

Handheld Transmitter Exterior

LCD

Window

Figure G

Opening Handheld Transmitter

▼

Antenna

Housing

Power-on

LED

Figure H

Handheld Transmitter Interior

LCD

Window

Up/Down

Arrows

Set Button

SET

Figure J

Power-on

LED

Transmitter LCD Window

▼

MENU

Flashing

▼

EDIT

BATT

J-1. Normal Operation

* ATW-T310 only:

“INST”

MIC

BATT

*

J-2. Operation with Mute On

BATT MIC BATT MIC

J-3. Menu Mode (Frequency) J-4. Edit Mode (Frequency)

Figure K

UniPak Battery Door

▼

Installing UniPak Transmitter Batteries

Figure L

Figure M

Installing Handheld Transmitter Batteries

Serial Number

Start from this end to remove batteries

19

One-Year Limited Warranty

Audio-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 our option, 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 the sales 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 or modification, 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; any warranty 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

Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224 330/686-2600 www.audio-technica.com

P2323-03410 P51733 ©2004 Audio-Technica U.S., Inc. Printed in China