Audio Technica ATW-1821 Owner's Manual page 3

• 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 camera's
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 Transmitter's 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 ___.)