Audio Technica AT-ONE Owner's manual

UHF Wireless Microphone System
Installation and Operation

Contents
Introduction
- Introduction 1
- Safety 1
System Functions
- Receiver Functions 2-3
- Handheld Transmitter Functions 4
- BodypackTransmitter Functions 5
- Battery Status 6
System Operation
- System Setup 6
- Receiver Operation 7
- Transmitter Operation 8
- Squelch 9
- Frequencies 9
- Troubleshooting 10
- Rack Mount Setup 11
Specifications
- Overall Specification 12
- Receiver Specification 12
- Bodypack Transmitter Specification 13
- Handheld Transmitter Specification 13
Compliance
- WEEE Regulations 14
- Declaration of Compliance 15

Introduction
Introduction
Thank you for purchasing this Audio-Technica product. This PLL synthesized wireless microphone
system operates in the UHF band frequency, with two groups of four frequencies. Please read this
manual carefully before operating the AT-One system.This manual covers the function and operation of
the wireless microphone system.
Safety
- To prevent fire or shock hazard, do not expose this appliance to rain or moisture
- To prevent fire, do not cover the ventilation of the apparatus with newspaper, tablecloths, etc.
- Do not expose this apparatus to drips or splashes
- Do not place any objects filled with liquids, such as vases, on the apparatus
- Do not install this apparatus in a confined space such as a bookcase or similar unit
- The aparatus should be located close enough to the AC outlet so that you can easily grasp the
AC adapter at any time. In case of emergency, disconnect the AC adapter quickly.
- Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent
type.
- If the transmitter is not in use for an extended period, remove the batteries to avoid damage
- Do not dispose of used batteries with domestic rubbish. Be sure to dispose of batteries in
accordance with your local waste disposal rules.
- When disposing of the equipment, remove the batteries, separate the case, circuit boards and
cables, and dispose of all components in accordance with local waste disposal rules.
The circuits inside the receiver and transmitter have been precisely adjusted for optimum performance
and compliance with government regulations. Do not attempt to open the receiver or transmitter. To do
so will void the warranty, and may cause improper operation.

Receiver Functions
Receiver Front:
1. Antenna: Detachable UHF antenna with BNC connector
2. Power Button
3. RF Red LED: Displays the reception status of the RF signal
4. AF Green LED: Displays the reception status of the AF signal
5. UP Channel Button: Tap forward to select an interference free channel
6. DOWN Channel Button: Tap backward to select an interference free channel

Receiver Functions
Receiver Rear:
1. Antenna BNC Receptacle: This provides a connection to the supplied antennas or to
coaxial cable used with an antenna divider, antenna
booster or remote antennas
2. Balanced XLR Audio Output
3. Unbalanced 1/4” Jack Output
4. Mic/Line Switch: Use this to adjust the audio output of the wireless
microphone system for mic level (-20dB) or line-level
(0dB)
5. SQ (Squelch): Turn the squelch to the lowest possible setting (counter
clockwise) to eliminate any interfering signals. In RF
crowded environments (other wireless microphones, LTE,
etc.) it can be required to increase the squelch level
(clock wise) to block out unwanted noise. Please note
that this will reduce the operating distance of the system,
so always seek the lowest possible setting.
6. DC IN: DC input connector for the supplied AC adapter
7. Cable Strain

Transmitter Functions
Handheld Transmitter:
1. Power/Mute Button
2. Power/Mute/Battery Status LED Indicates the power/mute/battery level status
3. Channel Selector: Change the channel setting from 11-14 or 21-24
4. Battery Compartment: Insert two AA batteries making sure the polarity is correct
5. Grille: Protects the microphone capsule and protects against wind
and breath sound

Transmitter Functions
Bodypack Transmitter:
1. Antenna
2. Power/Mute Button
3. Power/Mute/Battery Status LED: Indicates the power/mute/battery level status
4. Input Connector: 4-pin locking connector (HRS)
5. Channel Selector: Change the channel setting from 11-14 or 21-24
6. Gain: Rotary control adjusts the sensitivity of the
transmitter’s audio to the level of the connected
mic or instrument
7. 10dB Switch: Activate this switch to attenuate the signal by
an additional 10dB.
8. Battery Compartment: Insert two AA batteries making sure the polarity is
correct

Transmitter Functions
LED Status
Green Ready
Red Muted
Green Flashing On, low battery
Red Flashing Muted, low battery
No Light No power
Power/Battery Status LED:
System Operation
System Setup:
For best operation the receiver should be at least 1 m above the ground and at least 1m away from a
wall or metal surface to minimize reflections. The transmitter should be at least 2m from the receiver,
as shown in in the diagram below. Keep antennas away from noise sources such as digital equipment,
motors, automobiles and neon lights, as well as away from large metal objects.
2 m
1 m
1 m
1 m

System Operation
Connecting the receiver:
Plug the DC 12V 500mA power supply into the
power connector on the back of the receiver.
The power connector is supplied with
interchangable UK and EU adaptors.
Connect the receiver output to an audio mixer
or amplifier input, using a standard audio cable
with 3-pin XLR or 6.35mm Jack connectors.
Never use balanced and unbalanced audio
outputs at the same time, this may cause
signal loss or increased noise.
Set the attenuation for mic or line input.
Two-position switch adjusts the audio output
attenuation to 0 dB or -20 dB. The factory
setting is 0 dB.
Line Mic

System Operation
Handheld Microphone/Bodypack Transmitter set up:
Open the battery cover and insert AA batteries into
the battery compartment making sure the polarity
is correct.
Unscrew the bottom of the handheld mic and open
the battery cover to insert AA batteries into the
battery compartment, making sure the polarity is
correct.
Press and hold the power button on the micro-
phone/bodypack transmitter for 4 seconds to turn
on. If the LED remains flashing after 4 seconds it is
indicating that the battery is low on power.
Use the included key to adjust the frequency of the
transmitter to be the same as the receiver.
Use the 0dB/-10dB switch to adjust the audio input
level.
0dB -10dB