Audio Technica ATWR220 Users manual

220 Series Professional

VHF Wireless Systems

ATW-221 UniPak™ System

ATW-222 Handheld Microphone System

Installation and Operation

Professional VHF Wireless Systems

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: 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.

CAUTION! Electrical shock can result from removal of the receiver cover. Refer servicing to qualified service personnel. No user-serviceable parts inside. Do not expose to rain or moisture.

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.

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.

Introduction

Thank you for choosing an Audio-Technica professional wireless system. You have joined thousands of other satisfied customers who have chosen our products because of their quality, performance and reliability. This wireless microphone system is

the successful result of years of design and manufacturing experience.

This professional wireless system includes a receiver and either a body-pack or a handheld transmitter on a specific crystal-controlled frequency.

The receiver features true diversity reception. Two antennas feed two completely independent RF sections on the same frequency; automatic logic circuitry continuously compares and selects the superior received signal, providing better sound quality and reducing the possibility of interference and dropouts. The receiver is half-width for a standard 19" (1U) rack mount.

Please note that in multiple-system applications there must be a transmitter-receiver combination on a separate frequency for each input desired (only one transmitter for each receiver).

Operating frequency information will be found on page 6.

The versatile ATW-T201 UniPak body-pack transmitter has both a high-impedance input for instruments, and a low-impedance input with bias connection for use with dynamic and electret condenser microphones. The ATW-T202 handheld transmitter features a unidirectional dynamic microphone element.

Both the body-pack and handheld transmitters use internal 9-volt batteries and have Off/Standby/On switches, input Trim (level) adjustments and battery-save switches.

2	See pages 8-9 for illustrations.

Receiver Installation

Location

For best operation the receiver should be at least 3' (1 m) above the ground and at least 3' (1 m) away from a wall or metal surface to minimize reflections. Keep the receiver antennas away from noise sources such as digital equipment, motors, automobiles and neon lights, as well as away from large metal objects. In multi-channel systems, position receivers at least 3' (1 m) apart and keep operating transmitters at least 6' (2 m) from the receivers to help assure maximum RF performance.

Output Connection

There are two audio outputs on the back of the receiver: balanced (160 mV) and unbalanced (280 mV). Use shielded audio cable for the connection between the receiver and the mixer. If the input of the mixer is a 1/4" jack, connect a cable from the 1/4" unbalanced audio output on the back of the receiver to the mixer. If the input of the mixer is an XLR-type input, connect a cable from the balanced XLR-type audio output on the back of the receiver to the mixer.

The two isolated audio outputs permit simultaneous feeds to both unbalanced and balanced inputs. For example, both a guitar amp and a mixer can be driven by the receiver.

Power Connection

Connect the included [need number] adapter to the DC power input on the back of the receiver. Then plug the adapter into a standard 120 volt 60 Hz AC power outlet.

Antennas

Attach the antennas to the antenna input jacks.

Receiver Controls and Functions

Front Panel Controls and Functions (Fig. A)

1.POWER SWITCH: Press power switch in to turn on

2.POWER INDICATOR: Lights when power is supplied to the receiver.

3.TUNER OPERATION INDICATOR: Indicates which tuner has the better reception and is in operation.

4.AF PEAK INDICATOR: Only lights when audio distortion is present at maximum modulation. Not affected by position of AF Level Control.

5.TUNER OPERATION INDICATOR: Indicates which tuner has the better reception and is in operation.

6.AF LEVEL CONTROL: Adjusts the level at both audio output jacks.

Rear Panel Controls and Functions (Fig. B)

7.ANTENNA INPUT JACK: BNC-type antenna connector for Tuner “A.” Attach the antenna directly, or extend it with a low-loss antenna cable.

8.SQUELCH CONTROL: Adjusts level of noise-muting circuit (Preset at factory but can be adjusted as circumstances warrant.)

9.BALANCED AUDIO OUTPUT JACK: XLRM-type connector. A standard 2-conductor shielded cable can be used to connect the receiver output to a balanced aux-level input on a mixer.

10.GROUND LIFT SWITCH: Disconnects the ground pin of the balanced output (9) from ground. Normally, the switch should be to the left (ground connected). If hum caused by a ground loop occurs, slide switch to the right.

11.UNBALANCED AUDIO OUTPUT JACK: 1/4" phone jack. Can be connected to an unbalanced aux-level input of a mixer or tape recorder.

12.DC POWER INPUT: For the provided [NEED NUMBER] adapter, or other 12-18V DC source.

(Receiver requires 500 mA.) [CORRECT?]

13.ANTENNA INPUT JACK: BNC-type antenna connector for Tuner “B.” Attach the antenna directly, or extend it with a low-loss antenna cable.

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