Audio Technica R1820D, R1810D, T1801D, T1802D, T1802D1 Users manual
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 conformité avec IC: RSS210/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 prévenir feu ou choc électrique, ne pas exposé l’appareil à la pluie ou à
l’humidité.
:
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 Camera-mount UHF Wireless Microphone System (dual-channel)
with Body-pack Transmitters
Two ATW-T1801 UniPak™ Body-pack Transmitters
Two Omnidirectional Lavalier Microphones
ATW-1822
Two ATW-T1802 Plug-on Transmitters
ATW-1823
ATW-T1801 UniPak™ Body-pack Transmitter
Camera-mount UHF Wireless Microphone System (dual-channel)
with Plug-on Transmitters
Camera-mount UHF Wireless Microphone System (dual-channel)
with Plug-on and Body-pack Transmitters
ATW-T1802 Plug-on Transmitter
Omnidirectional Lavalier Microphone
System Features (Dual-Channel)
• Two completely independent receiver channels in a single unit, for
simultaneous operation of two microphones
• 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-Technica’s 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 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 Freq uencies 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 ___.)
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.
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.
Set
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).
Up/Down Arrows
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).
Rear Panel:
Output A
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 B
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 doesn’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 (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).
Receiver Level Controls [1and 2]
The signal levels of each receiver signal (Receiver Channel 1 and Receiver Channel 2) may be
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);
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