FCC ID: JFZR1810D RECEIVER

1800 Series (Dual-Channel) Owners Manual 1800 Series Camera-mount UHF Wireless Microphone Systems (dual-channel) ATW-1821 Body-pack Transmitters System ATW-1822 Plug-on Transmitters System ATW-1823 Plug-on and Body-pack Transmitters System Installation and Operation 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 conformit 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. Changes or modifications not expressly approved by Audio-Technica could void your authority to operate this equipment. 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. CAUTION! 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. Warning: To prevent fire or shock hazard, do not expose this appliance to rain or moisture. Attention: Pour prvenir feu ou choc lectrique, ne pas expos lappareil la pluie ou lhumidit. 1800 Series System Components (Dual-Channel) All 1800 Series dual-channel systems include:

ATW-R1820 Dual-channel receiver Two detachable antennas Two 18 output cables, TA3F to XLRM Pouch with belt clip (holds receiver) Hook & loop fastener mount Each of the three dual-channel camera-mount wireless systems also includes the following:

ATW-1821 ATW-1822 ATW-1823 Camera-mount UHF Wireless Microphone System (dual-channel) with Body-pack Transmitters Two ATW-T1801 UniPak Body-pack Transmitters Two Omnidirectional Lavalier Microphones Camera-mount UHF Wireless Microphone System (dual-channel) with Plug-on Transmitters Two ATW-T1802 Plug-on Transmitters Camera-mount UHF Wireless Microphone System (dual-channel) with Plug-on and Body-pack Transmitters ATW-T1801 UniPak Body-pack Transmitter ATW-T1802 Plug-on Transmitter Omnidirectional Lavalier Microphone System Features (Dual-Channel) simultaneous operation of two microphones Two completely independent receiver channels in a single unit, for Extremely compact receiver is easy to mount on a camera with included Velcro-type fastener UHF reception with 996 frequencies selectable in 25 kHz steps Automatic frequency scanning for easy selection of open channels Tone Lock squelch system eliminates interference when transmitter is off (Transmitters are compatible with Advanced Digital Tone Lock squelch on Audio-Technicas 3000 Series UHF Wireless Systems) Two independent balanced outputs (you can assign function of each, independently) Headphone monitor output with independent level control Battery fuel-level indicators on transmitters and receiver Soft-touch controls for easy frequency selection True Diversity operation for resistance to multi-path interference and dropouts LCD frequency and battery status display with backlight Antenna and AF Peak LED indicators Easy, user-friendly operation Clear, natural sound quality Powered by AA batteries Quick Overview of System Operation Thank you for purchasing this Audio-Technica 1800 Series Dual-channel Camera-mount UHF Wireless Microphone System. All 1800 Series systems are designed primarily to be used with video cameras, with the ATW-R1820 Dual-channel Receiver mounted on a camera and connected to the cameras audio input; they may also be used with other components equipped with microphone-level input(s). This system is equipped with a dual receiver, which consists of two completely independent receiver channels in a single unit, for simultaneous operation of two microphones. First, insert batteries. (See Receiver Battery Installation, page __.) Note: The ATW-R1820 Dual-channel Receiver also functions without batteries if connected to an external power supply (12V DC source, 500 mA nominal current, not included). Next, mount the ATW-R1820 Dual-channel Receiver to your camera using the included hook & loop fastener mount or another accessory bracket (not included); or use the included pouch with belt clip to attach the ATW-R1820 to your belt. Connect the output cable(s) to the ATW-R1820 and your video camera (and/or audio mixer). (See Output A, Output B, and Output Select Switch callouts, page ___). Turn the ATW-R1820 Power Switch on. Choose 1 to activate only Receiver Channel 1 (power/peak LED 1 should light red); this option will increase useable battery life. Choose Both to activate both receiver channels (power/peak LEDs 1 and 2 should light red). (See Power Switch with four positions: External, Off, 1, Both callout, page ___.) Select a frequency for Receiver Channel 1 and Receiver Channel 2. (See Selecting Frequencies on your Dual-channel Receiver, page ___.) NOTE: Receiver Channel 1 and Receiver Channel 2 must be set to different frequencies to avoid interference. Transmitter-Receiver pairs must be set to identical frequencies: Set Transmitter 1 to the same frequency as Receiver Channel 1; Set Transmitter 2 to the same frequency as Receiver Channel 2. IF your system is equipped with a UniPak Body-pack Transmitter and lavalier microphone: Plug the included lavalier microphone(s) into the UniPak body-pack transmitter(s) and position microphone(s) on your subject about six inches below the chin. Anticipate movements that may cause the microphone to rub against or be covered by clothing, and position the microphone to avoid it. Turn the power on (see Operating the Transmitter, page ___). Select a frequency and choose other settings. See Operating the Transmitter and How to Set Frequencies on your Transmitter, page ___.) IF your system is equipped with a Plug-on Transmitter: Attach a dynamic microphone or a condenser microphone with an internal battery to the Plug-on Transmitters input connector (see Microphone Input, page, ___). Turn the power on (see Operating the Transmitter, page ___). Select a frequency and choose other settings. See Operating the Transmitter and How to Set Frequencies on your Transmitter, page ___.) DUAL-CHANNEL RECEIVER CONTROLS Front Panel:

LCD Liquid Crystal Display shows battery status and frequency settings. (Use the Dual-channel Control Switch to select frequencies for Receiver Channel 1 and Receiver Channel 2; in Hold position, only Receiver Channel 1 frequency appears in LCD.) Antenna Input Jacks BNC-type antenna connectors. Antennas A & B (split internally) both provide signals for Receiver Channel 1 and Receiver Channel 2. Attach the antennas to the antenna input jacks. Make certain that during operation there is a clear open-air path between the receiver antennas and the transmitters. Diversity Indicators for each antenna for each receiver True Diversity operation: two antennas feed two completely independent RF sections on the same frequency for each receiver; automatic logic circuitry selects the superior signal. Diversity Indicator 1 indicates which tuner has the better reception and is in operation for Receiver Channel 1; Diversity Indicator 2 indicates which tuner has the better reception and is in operation for Receiver Channel 2. Power Switch with four positions: External, Off, 1, Both Turns the unit on and off. Choose External (far left position), if the unit is connected to an external power supply (12V DC source, 500 mA nominal current, not included). In External position, both receiver channels are activated (indicated by illumination of power/peak LEDs 1 and 2). Choose Off to turn the unit off. Choose 1 to activate only a single receiver channel (Receiver Channel 1, indicated by the illumination of power/peak LED 1). This conserves energy if you are only using one audio channel. Choose Both to activate both receiver channels (indicated by illumination of power/peak LEDs 1 and 2). Note: Selected receiver will be muted unless Dual-channel Control Switch (to right of Power Switch) is in Hold position. Power/Peak LED Indicates which receiver channel(s) is (are) in operation. Also indicates receiver overload by turning off; too much signal will cause blinking LED (off during peaks). To correct overload, adjust audio gain on transmitter. (See .) Dual-channel Control Switch with three positions: 1, Hold, 2 This switch allows you to use the single LCD window to control each of the two receiver channels separately. To set frequency for Receiver Channel 1, switch to 1 (left position). To set frequency for Receiver Channel 2, switch to 2 (right position). To lock settings and operate unit, switch to Hold (center position). Note: Receiver Channel 1 is muted when switch is at 1; Receiver Channel 2 is muted when switch is at 2; both channels un-mute when switch is at Hold. Dual-channel Control LED This LED is red when switch is in position 1, indicating muted operation for Receiver Channel 1. Set Up/Down Arrows Rear Panel:

Output A Output B It is also red when switch is in position 2, indicating muted operation for Receiver Channel 2. LED turns green in Hold position, indicating unit is ready for operation. Use with the Dual-channel Control Switch and Up/Down arrows to choose operating frequencies manually or automatically (using your choice of three automatic scan groups). Press Up or Down arrows, in conjunction with the Set button, to choose operating frequencies manually or automatically (using your choice of three automatic scan groups). BALANCED AUDIO OUTPUT JACK: XLRM-type connector. Pin 1: ground (shield); Pin 2: audio +;

Pin 3: audio . A standard 2-conductor shielded cable can be used to connect the receiver output to a balanced microphone-level input on a camera, mixer or integrated amplifier. BALANCED AUDIO OUTPUT JACK: XLRM-type connector. Pin 1: ground (shield); Pin 2: audio +;

Pin 3: audio . A standard 2-conductor shielded cable can be used to connect the receiver output to a balanced microphone-level input on a camera, mixer or integrated amplifier. Output Select Switch The rear panel provides two balanced XLR audio outputs (Outputs A & B). The unit is equipped with an output select switch that assigns a signal to each of the audio outputs, as follows:

Output A (left) can be assigned either Receiver Channel 1 or MIX. (MIX = Ch. 1 and Ch. 2 signals mixed together. The relative levels of each signal can be adjusted using the individual receiver level controls.) Output B (right) can be assigned either Receiver Channel 1, Receiver Channel 2, or Mix. Typical configuration: Output A is assigned Channel 1; Output B is assigned Channel 2, feeding individual channels in a mixer or camera. Many other options are available, providing much flexibility, for instance:

If your camera doesnt accept two inputs, you can sum the signal from both transmitters in Output A and connect this mixed signal to your camera. You can connect Output A (mixed signal) to a camera, and Output B (mixed signal) to an audio mixer When using the unit with a single transmitter (single-channel operation), Output A can be used to feed a camera, while Output B can feed an audio mixer (both with identical signals from Receiver Channel 1). The signal levels of each receiver signal (Receiver Channel 1 and Receiver Channel 2) may be Receiver Level Controls [1and 2]

adjusted using these controls. When the outputs are assigned to a single receiver signal, these controls will adjust the output level. (Turn clockwise to increase output level.) When the outputs are assigned to MIX, these controls adjust the relative levels between the receiver signals. Monitor Select Switch This switch assigns a signal to the Monitor headphone output. Choose 1 [left position] to hear Channel 1 in both ears (mono signal, stereo output);

Choose 2 [right position] to hear Channel 2 in both ears (mono signal, stereo output);

ear. Monitor Level Control DC Input Monitor Output TRS jack. Side Access:

Battery Selection Receiver Battery Installation Battery Condition Indicator Choose Out [middle position], to hear Output A in the left ear, and Output B in the right The level control (volume control) for headphones is independent of other level controls. Turn to the right to increase output (turn up the volume). You may connect the unit to an external power supply (12V DC source, 500 mA nominal current, not included. In this case, move the Power Switch to the External position; both receiver channels are activated (indicated by illumination of power/peak LEDs 1 and 2). Each ATW-R1820 dual-channel receiver uses six 1.5V AA batteries, not included. Alkaline type is recommended. Always replace all batteries. Make certain the receiver power is Off before replacing batteries. Note: The ATW-R1820 receiver also functions without batteries if connected to an external power supply (12V DC source, 500 mA nominal current, not included). 1. Open the battery compartment door by pushing the catch back 2. Observe correct polarity as marked and carefully insert six fresh 1.5V AA alkaline batteries 3. Replace the door, making certain the latch clicks securely in place. After the batteries are installed, turn the power on by moving the Power switch to either the 1 or Both position. The small red power-on LED should light (red light at 1 if Power switch is in position 1; right light at 1 & 2 if Power switch is in Both position) and the LCD window should come on. If this does not happen, the batteries are installed incorrectly or they are dead. The receivers fuel gauge battery indicator displays a maximum of four bar segments. When LCD flashes LOW.BAT, the batteries should be replaced immediately to ensure continued operation. Operating the Receiver NOTE: Receiver Channel 1 and Receiver Channel 2 must be set to different frequencies to avoid interference. Transmitter-Receiver pairs must be set to identical frequencies: Set Transmitter 1 to the same frequency as Receiver Channel 1; Set Transmitter 2 to the same frequency as Receiver Channel 2. Selecting Frequencies on your Dual-channel Receiver Overview 1. Turn the power on by moving the Power switch to either the 1 position (for single-channel operation) or Both position (for dual-channel operation). 2. Switch the Dual-channel Control Switch to 1 (to set frequency for Receiver Channel 1) or 2 (to set frequency for Receiver Channel 2). Audio output is muted for the channel that is selected. 3. Press the Set button to enter the Frequency Selection Menu mode; the world Menu will appear. 4. Use the Up/Down arrows to cycle through functions:

First arrow up is Manual Frequency Selection Mode;

second arrow up is Automatic Scan Group 1;

third arrow up is Automatic Scan Group 2;

fourth arrow up is Automatic Scan Group 3;

fifth arrow up is Quit, allowing exit from Menu mode. Dual-channel operation (using two transmitters) Setting Receiver Frequency Manually First Turn the power on by moving the Power switch to Both (for dual-channel operation). To set frequency for Receiver Channel 1, switch Dual-channel Control Switch to 1 (left position). 1. Press Set button. The word MENU will appear. Press Up arrow to show current frequency. Press Set button and frequency will begin to flash; then use up and down arrows to adjust the frequency. Frequency changes in 25k steps. To increase scroll speed, hold the up or down arrow for more than 4 seconds. 2. When you arrive at desired frequency, press and hold the Set button until the word Stored appears. Frequency is now set. 3. To back out of the Manual Frequency Set mode without making a frequency choice, simply press the Set button once to exit the menu and return the receiver to normal operation. The word ESCAPE will appear in the window, and no changes in frequency setting will be made; the receivers audio output will again be enabled (when Dual-channel Control Switch is returned to Hold position). To set frequency for Receiver Channel 2, switch Dual-channel Control Switch to 2 (right position). Repeat steps 1-2 above. To lock settings and operate unit, switch Dual-channel Control Switch to Hold (center position). Note: While Channel Selection mode is still active, if the Dual-channel Control Switch is moved back to Hold position before channel selection is complete, LED will remain red and audio will remain muted until the control sequence is completed. Using the Automatic Scan Function to Set Receiver Frequency (dual-

channel operation) First Turn the power on by moving the Power switch to Both (for dual-channel operation). Then switch Dual-channel Control Switch to 1 (left position). 1. Press the Set button to enter the Frequency Selection Menu mode; the world Menu will appear. 2. Use the Up or Down arrow to reach Scan 1, Scan 2, or Scan 3. Press the Set button once to select one of these three Scan groups. The word SCAN1, SCAN2 or SCAN3 will flash in the LCD window. 3. Press the Up or Down arrow to begin the scan. Press the Up arrow to scan up from the lowest frequency in the group; press the Down arrow to scan down from the highest frequency in the group. 4. The first available frequency will flash in the LCD window. To activate this frequency selection, press and hold the Set button until the word STORED appears in the LCD window. 5. If you do not wish to use the frequency found, you may press the Up or Down arrow. The Up arrow with scan upwards, the Down arrow will scan downwards, from the frequency you are on. 6. To set frequency for Receiver Channel 2 (for dual-channel operation), switch Dual-

channel Control Switch to 2 (right position). Repeat steps 1-4 above. Note: Be certain to select the same Scan Group than you used for Receiver Channel 1. 7. To lock settings and operate unit in dual-channel operation (using two transmitters), switch Dual-channel Control Switch to Hold (center position). The receiver will return to normal operation, audio function will be restored and the Dual-channel Control LED indictor will turn green. 8. If you are using multiple systems, after completing the first receiver's scan and frequency selection, set its transmitter to the same frequency (see Setting Transmitter Frequency instructions on page ); leave the transmitter On, and run the next receivers 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. In the event that no more free frequencies are available within the scan group, the receiver will indicate END on the receiver display. In this case, the user should select a different scan group for both Receiver Channels 1 and 2 and re-scan. Note: While Channel Selection mode is still active, if the Dual-channel Control Switch is moved back to Hold position before channel selection is complete, LED will remain red and audio will remain muted until the control sequence is completed. Single-channel operation Setting Receiver Frequency Manually (for single-channel operation) First Turn the power on by moving the Power switch to the 1 position (for single-channel operation). Switch Dual-channel Control Switch to 1 (left position). Output from Receiver Channel 1 is now muted. 1. Press Set button. The word MENU will appear. Press Up arrow to show current frequency. Press Set button and frequency will begin to flash; use up and down arrows to adjust the frequency. Frequency changes in 25k steps. To increase scroll speed, hold the up or down arrow for more than 4 seconds. 2. When you arrive at desired frequency, press and hold the Set button until the word Stored appears. Frequency (which appears on the screen) is now set. 3. To back out of the Manual Frequency Set mode without making a frequency choice, simply press the Set button once to exit the menu and return the receiver to normal operation. The word ESCAPE will appear in the window, and no changes in frequency setting will be made; the receivers audio output will again be enabled. To lock settings, un-mute and operate the unit, switch Dual-channel Control Switch to Hold (center position). Using the Automatic Scan Function to Set Receiver Frequency Automatically (for single-channel operation) First Turn the power on by moving the Power switch to 1 (for single-channel operation). Then switch Dual-channel Control Switch to 1 (left position). 1. Press the Set button to enter the Frequency Selection Menu mode; the world Menu will appear. 2. Use the Up or Down arrow to reach Scan 1, Scan 2, or Scan 3. Press the Set button once to select one of these three Scan groups. The word SCAN1, SCAN2 or SCAN3 will flash in the LCD window. 3. Press the Up or Down arrow button to begin the scan. Press the Up arrow to scan up from the lowest frequency in the group; press the Down arrow to scan down from the highest frequency in the group 4. The first available frequency will flash in the LCD window. To activate this frequency selection, press and hold the Set button until the word STORED appears in the LCD window. If you do not wish to use the frequency found, you may press the Up or Down arrow. The Up arrow with scan upwards, the Down arrow will scan downwards, from the frequency you are on. 5. 6. To lock settings and operate unit in single-channel operation (using one transmitter), switch Dual-channel Control Switch to Hold (center position). The receiver will return to normal operation, audio function will be restored and the Dual-channel Control LED indictor will turn green. ATW-T1801 UniPak Body-pack Transmitter &

ATW-T1802 Plug-on Transmitter Controls Antenna The ATW-T1801 UniPak Body-pack 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 or try repositioning the receiver. Since the transmitter antenna simply screws in, check to make certain it is snugly attached (finger-tight). Do not change the length of the transmitting antenna. Green light indicates power is on and un-muted; red light indicates that audio is muted. Power-on LED LCD Window The Liquid Crystal Display presents setup and operating information clearly and conveniently). 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. The display is illuminated with a backlight when you press Set to access transmitter functions. The backlight will automatically turn off within a set period of time. Audio Input Jack Microphone Input Connect an audio input device (microphone or guitar cable) to the audio input jack on the bottom of the ATW-T1801 UniPak Body-pack Transmitter. A number of Audio-Technica professional microphones and cables are available separately, pre-terminated with a UniPak input connector

(see Optional System Accessories ). The cable connector latches automatically when inserted into the transmitter jack. To unlatch and remove the connector, pull up on the connectors knurled metal collar. The ATW-T1802 Plug-on Transmitter has a 3-pin XLRF-type input connector with a locking collar. Use a dynamic microphone, or a condenser mic with an internal battery. To attach the microphone, rotate the threaded locking collar fully clockwise (down) until it reaches the transmitter housing. Then rotate the collar back up one or two turns to expose the microphone latch. Press the microphone and transmitter together , making certain that the latch clicks into the base of the mic. Pull on the mic to make certain it is latched on the connector. Continue to rotate the threaded collar up until it is firmly against the end of the mic. Make certain the mic is securely attached before use. To detach the microphone, reverse the steps above. Always loosen the threaded collar fully before attempting to disconnect the mic. Power/Mute Button For on/off and mute functions. Up/Down Arrows Press Up or Down arrows, in conjunction with the Set button, to choose operating frequencies and access transmitter functions. Set Button Press Up or Down arrows, in conjunction with the Set button, to choose operating frequencies and access transmitter functions. Sliding Control Cover (3-position) This 3-position sliding cover on the transmitters control panel prevents accidental shut-

off or channel-switching. Sliding Control Cover This sliding cover on the transmitters control panel helps to prevent accidental shut-off or channel-switching. Battery Door Open by sliding the catch down. Mounting Clip The UniPak transmitters 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. Transmitter Batteries Battery Selection Transmitter Battery Installation Battery Condition Indicator 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. 1. Open the battery compartment door by sliding the catch down . 2. Observe correct polarity as marked on the metal contacts on the door and carefully insert two fresh 1.5V AA alkaline batteries . 3. Close the door, making certain the latch clicks securely in place. After the batteries are installed, turn the power on by pressing and holding the Power/Mute button. The small power-on LED should light green and the LCD window should come on. If this does not happen, the batteries are installed incorrectly or they are dead. The transmitters 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.) Operating the Transmitter Turning your Transmitter On & Off To turn the transmitter on, press and hold the Power/Mute button until the power indicator lights green, and the LCD window comes 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 power indicator and the LCD window are extinguished (about 1-2 seconds). The LCD window will show PWR.OFF before shutdown. How to Set Frequencies on your Transmitter NOTE: Transmitter-Receiver pairs must be set to identical frequencies: Set Transmitter 1 to the same frequency as Receiver Channel 1; Set Transmitter 2 to the same frequency as Receiver Channel 2. 1. Turn transmitter on. 2. Press the Set button once and the small word MENU will appear above the frequency. 3. Press the Set button again and the small flashing word EDIT will appear to the right of MENU. 4. Use the Up/Down arrows to change the transmitter frequency. Press either arrow for 25 kHz 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. 5. To activate this frequency selection, press and hold the Set button until the word STORED appears in the transmitters 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.) 6. When finished entering a frequency, press the Up arrow 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. How to Access & Use the Function Menu on your Transmitter 1. Turn transmitter on. 2. Press the Set button once; the small word MENU will appear above the frequency. 3. When in the Menu mode, use the Up and Down arrows to cycle through the following functions:

Frequency RF Power Audio Input Level Power/Mute Locks Reset to Defaults Quit (exit menu) Input Select 4. To make a change in the default setting:

Press Set button once;

Press Up or Down arrow until you reach desired setting;

Press and hold Set button until the word Stored appears in the LCD 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.) Transmitter Functions Default Setting Choices (Edit) Function Menu Lowest in band 996 frequencies (25 kHz steps) Frequency RF Power RF LOW Audio Input Level

+6 dB Power/Mute Locks NO. LOC Input Select**

MIC Reset to Defaults PRESET Quit QUIT

**on UniPak Transmitter only RF Power Adjustments on your Transmitter Wrap-around*

Yes Yes RF LOW RF HI No

-6 dB 0 dB +6 dB +12 dB Yes NO. LOC ALL.LOC MUT.LOC. PWR.LOC MIC INST Yes

LOAD (b) hold until: DEF (c) hold until: LOADED Press Set to exit

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. Audio Input Level (Gain) Adjustments on your Transmitter Correct adjustment of transmitter audio input, receiver audio output, and mixer/amplifier input and output levels is important for best performance. A 4-position audio input gain setting, selected through the function menu, allows you to match the audio input level to the transmitter for best modulation with minimum distortion. The 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). Using the Mute and Un-Mute Functions on your Transmitter When the transmitter is muted, it produces RF with no audio. 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. 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 The Power/Mute Button can be programmed (through the function menu): power can be locked On;

Mute can be locked either On or Off. Setting Description NO.LOC ALL.LOC MUT.LOC The Power and Mute functions operate normally. 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.) Audio Input Selector Restore Default Settings default values. The UniPak body-pack transmitter provides input connections for both low-impedance (Lo-Z) microphones and high-impedance (Hi-Z) instruments. A wide range of Audio-Technica Wireless Essentials microphones and cables are available pre-terminated with the appropriate professional latching connector. Select the desired input microphone or instrument through the function menu; a small MIC or INST will show in the LCD window, just below the frequency. 1. A PRESET selection in the menu allows you to reset all transmitter functions to their factory-

2. Press the Set button once to move to Menu mode. 3. Press the Up arrow twice to move to PRESET in the LCD window. 4. Press the Set button once and LOAD will appear in the LCD. 5. Press and hold the Set button until DEF appears in the LCD. 6. Press and hold the Set button until LOADED appears briefly in the LCD. The window will then revert to PRESET. 7. Press the Down arrow once to move to QUIT. 8. Press the Set button once to exit the Menu mode and return to normal operation, with all factory-default settings restored. About 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 help with operation or frequency selection, please contact your dealer or the Audio-

Technica professional division. Extensive wireless information also is available at www.audio-

technica.com. Tips for best results 1. Use only fresh alkaline batteries; replace the receiver batteries in pairs. Do not use general purpose (carbonzinc) batteries. 2. Position the dual-channel receiver so that it has the fewest possible obstructions between it and the normal location of the transmitters. Line-of-sight is best. 3. The transmitters and the dual-channel receiver should be as close together as conveniently possible, but no closer together than three feet. 4. The receiver antennas should be in the open and away from any metal. 5. Each transmitter-receiver pair must be set to the same frequency. 6. Only one transmitter on a given frequency should be on at a time. 7. The power switch on the transmitter has four positions: Ext., Off, and 1 and Both. 8. If the Out Level of either receiver channel is set too high, it may over-drive the input of the camera/mixer or clip the output of the receiver, causing distortion. Conversely, if the receiver output is set too low, the overall signal-to-noise ratio of the system may be reduced. 9. You need to change channels 1) when a strong interference signal is received, 2) when the channel breaks down, or 3) during multiple-system operation in order to select an interference-

free channel. Always turn the units off before changing frequencies. storage. 10. Turn the receiver and transmitter off when not in use. Remove the batteries during long-term WIRELESS ESSENTIALS MICROPHONES AND CABLES All Wireless Essentials accessories are terminated for use with UniPak transmitters. AT829cW Miniature cardioid condenser lavalier microphone. Includes clothing clip and windscreen. MT830cW Miniature omnidirectional condenser lavalier microphone. Includes clothing clip and windscreen. MT830cW-TH Theater model, same as MT830cW except beige color mic and cable. AT831cW Miniature cardioid condenser lavalier microphone. Includes clothing clip and windscreen. AT889cW Headworn noise-canceling condenser microphone. Includes windscreen and cable clip. AT892cW MicroSet headworn omnidirectional condenser microphone. Includes element covers, windscreens, moisture guard and clothing clip. AT892cW-CO Same as AT892cW except cocoa-color mic, earset and cable. AT892cW-TH Theater model, same as AT892cW except beige color mic, earset and cable. 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 mic and cable. Includes AT899AK-TH accessory kit. ATM350cW Cardioid condenser instrument microphone. Includes AT8418 clip-

on instrument mount. ATM73cW Headworn cardioid condenser microphone. Includes windscreen. ATM75cW Headworn cardioid condenser microphone. Includes windscreen. PRO8HEcW Headworn hypercardioid dynamic microphone. Includes windscreen and cable clip. PRO35cW Cardioid condenser instrument microphone. Includes AT8418 clip-on instrument mount. U851cW Surface-mount wide-range hemi-cardioid condenser microphone. U857ALcW Gooseneck cardioid microphone. Mounts to 5/8"-27 thread. Includes AT8663 A-mount flange, AT8664 A-mount cable pass-through adapter, AT8153 two-stage windscreen 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 ACCESSORIES 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 ACCESSORIES ATW-RMS1 Remote mute switch designed to be installed between a wireless microphone using an HRS-type connector and its associated body-pack wireless transmitter. Includes permanently attached 22" cable and belt clip. ATW-RCS1 Remote momentary-mute/cough switch designed to be installed between a wireless microphone using an HRS-type connector and its associated body-pack wireless transmitter. Includes permanently attached 22" cable and belt clip. For future reference, please record your system information here:

Receiver ATW-R1820C Serial Number __ __ __ __ __ __ __ ATW-R1820D Serial Number __ __ __ __ __ __ __ Transmitter ATW-T1801 UniPak Serial Number __ __ __ __ __ __ __ ATW-T1801 UniPak Serial Number __ __ __ __ __ __ __ ATW-T1802 Plug-on Serial Number __ __ __ __ __ __ __ ATW-T1802 Plug-on Serial Number __ __ __ __ __ __ __ Specifications