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Operating the Transmitter 

(continued)

1. A “PRESET” selection in the menu allows you to reset all transmitter functions to their 

factory-default values.

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.

Tips for Best Results

1. Use only fresh alkaline batteries. Always replace all batteries. 

Do not use “general purpose” (carbon-zinc) 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”, “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.

10. Turn the receiver and transmitter off when not in use. Remove the batteries during long-term storage.

Available Accessories

AT829cW 

Cardioid condenser lavalier microphone

MT830cW 

Omnidirectional condenser lavalier microphone

MT830cW-TH “Theater” model, same as MT830cW except beige-color mic and cable
AT831cW 

Cardioid condenser lavalier microphone

AT889cW 

Headworn noise-cancelling condenser microphone

AT892cW MicroSet

®

headworn omnidirectional condenser microphone 

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

AT899cW 

Subminiature omnidirectional condenser lavalier microphone

AT899cW-TH “Theater” model, same as AT899cW except beige-color mic and cable
ATM350cW 

Cardioid condenser instrument microphone

ATM73cW 

Headworn cardioid condenser microphone

ATM75cW 

Headworn cardioid condenser microphone

PRO 8HEcW  Headworn hypercardioid dynamic microphone
PRO 35cW 

Cardioid condenser instrument microphone

U851cW 

Cardioid condenser boundary microphone

U857ALcW 

Cardioid condenser gooseneck microphone

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

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')

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

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

Visit www.audio-technica.com for detailed information on all of our wireless accessories.

14

Restore Default Settings

Wireless Essentials

®

Microphones and Cables

(all Wireless Essentials accessories are 

terminated for use with UniPak™ transmitters)

Receiver Accessories

Transmitter Accessories

Summary of Contents for ATW-1821

Page 1: ...i r e l e s s w i r e l e s s 1800 Series Camera mount UHF Wireless Microphone Systems dual channel ATW 1821 UniPak Body pack Transmitter System ATW 1822 Plug on Transmitter System ATW 1823 Plug on and Body pack Transmitter System Set up and Operation ...

Page 2: ...ician 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 W...

Page 3: ...A3F to XLRM Pouch with belt clip holds receiver Transmitters ATW T1801 UniPak transmitter with included omnidirectional lavalier microphone ATW T1802 Plug on transmitter ATW 1821 Camera mount UHF Wireless Microphone System dual channel with Body pack Transmitters ATW 1822 Camera mount UHF Wireless Microphone System dual channel with Plug on Transmitters System Configurations 3 Note All model numbe...

Page 4: ... receiver and transmitters Antenna and AF Peak LED indicators Dual channel receiver can operate in single receiver mode to extend battery life when only one audio channel is required Compact dual receiver is easy to mount on a camera Transmitters operate in low or high transmission modes to conserve battery life maximize power Easy user friendly operation Clear natural sound quality Powered by AA ...

Page 5: ...uld light red this option will increase useable battery life Choose Both to activate both receiver channels and both outputs Power Peak LEDs 1 and 2 should light red See Power Switch with four positions External Off 1 Both page 6 Select a frequency for Receiver Channel 1 and Receiver Channel 2 See Selecting Frequencies on your Receiver page 8 NOTE Receiver Channel 1 and Receiver Channel 2 must be ...

Page 6: ...th receiver channels and both outputs indicated by illumination of Power Peak LEDs 1 and 2 Note Selected receiver will be muted unless Dual channel Control Switch 6 is in Hold position 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 Se...

Page 7: ... t 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 with both outputs active Power Switch set at Both Output A can be used to feed a camera while Output B can feed an audio mixer both with...

Page 8: ...o identical frequencies set Transmitter 1 to the same frequency as Receiver Channel 1 set Transmitter 2 to the same frequency as Receiver Channel 2 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 ...

Page 9: ...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 use the same scan group for all receivers After completing the first receiver s scan and frequency selections set its transmitters to the appropriate frequencies see How to Set Frequencies on your Transmitter page 12 leave the tr...

Page 10: ...he 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 will scan upwards the Down arrow will scan do...

Page 11: ...ck To unlatch and remove the connector pull up on the connector s knurled metal collar The ATW T1802 plug on transmitter has a 3 pin XLRF type input connector with a locking collar Use either a dynamic or a condenser microphone The transmitter provides power to condenser microphones rated to operate on 12V phantom power or less To attach the microphone rotate the threaded locking collar fully cloc...

Page 12: ...indow will show PWR OFF before shutdown 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...

Page 13: ...t press and release the Power Mute button once The word MUTE will appear in the LCD window just below the frequency and the Power on LED will turn red 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 and the Power on LED will turn green The Power Mute button can be programmed through the function menu power ...

Page 14: ...ver and transmitter off when not in use Remove the batteries during long term storage Available Accessories AT829cW Cardioid condenser lavalier microphone MT830cW Omnidirectional condenser lavalier microphone MT830cW TH Theater model same as MT830cW except beige color mic and cable AT831cW Cardioid condenser lavalier microphone AT889cW Headworn noise cancelling condenser microphone AT892cW MicroSe...

Page 15: ...n 350 mA typical Battery Life Dual channel Operation 6 hours typical Single channel Operation 10 hours typical depending on battery type and use pattern Dimensions 85 0 mm 3 35 W x 133 0 mm 5 24 H x 36 0 mm 1 42 D Net Weight without batteries 425 grams 15 0 oz Accessories Included Two flexible UHF antennas two 18 TA3F to XLRM output cables belt pouch RF Power Output High 30 mW Low 10 mW nominal Sp...

Page 16: ...n 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 inciden...

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