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Audio-Technica mikrofon Freeway ATW-251/G

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200 Series P fess nalro io

VHF Wire less Systems

ATW-251 UniPak®Transmitter System

ATW-251/G Guitar System

ATW-251/H Headworn Microphone System

ATW-251/H92 Headworn Microphone System

ATW-251/H92-TH Headworn Microphone System

ATW-251/L Lavalier Microphone System

ATW-252 Handheld Microphone System

Installation and Operation

Profess nal VHF Wiio re less Systems

Installation and 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 compli-

ance with federal regulations. Do not attempt to open the

receiver or transmitter. To do so will void the warranty,

and may cause improper 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 sub-

ject 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.

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.

Each 200 Series professional VHF wireless system includes a

receiver and either a body-pack transmitter or a handheld

microphone/transmitter on a specific crystal-controlled

frequency. ATW-251 UniPak

body-pack transmitter systems

include models pre-packaged with either an AT-GCW guitar

cable (/G), a PRO 8HEcW headworn microphone (/H), a

PRO 92cW headworn microphone (/H92), a PRO 92cW-TH

headworn microphone (/H92-TH), or a lavalier mic (/L) for

particular applications. All A-T Wireless Essentials®microphones

and cables, available separately, are pre-terminated for use with

any ATW-251 system.

Because 200 Series packaging is designed to hold all versions

of the system, some compartments in the carton are

intentionally left empty.

The ATW-R250 receiver includes a space-saving switching

power supply that automatically adapts to changes in mains

voltage. Unlike bulky linear power supplies, this switching power

supply is lightweight and compact; it uses only a single outlet

space.

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.

Introduction

See pages 8-9 for illustrations.

Notice to individuals with implanted cardiac pacemakers

or AICD devices:

Any source of RF (radio frequency) energy interfere withmay

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 medica device disruption will cease whenl-

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.

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

The receiver provides unbalanced, aux-level output from a 1/4"

TS (“mono”) phone jack; an output cable is not included. Use

a shielded audio cable with 1/4" phone plug to connect the

receiver’s AF Out jack to the mixer/amplifier’s aux-level input.

Power Connection

Connect the DC plug on the included AC power adapter to the

DC power input on the back of the receiver. Secure the cord

over the cord hook on the back of the receiver, to keep the

plug from being detached by an accidental tug on the cord.

Then plug the adapter into a standard 120 Volt 60 Hz AC power

outlet.

(Note that the receiver has no power Off/On switch. The

receiver will be energized whenever the power adapter is

connected and plugged into the AC outlet. Unplug the power

supply from the AC outlet when the system is not in use –

both for safety, and to conserve energy.)

Front Panel Controls and Functions (Fig. B)

1. ANTENNAS: Position the “signal” antenna (1a) and

“ground” antenna (1b) as shown in Figure A.

2. POWER INDICATOR: Lights when power is supplied to

the receiver.

3. RF INDICATOR: Lights to show presence of transmitter

signal.

4. AF PEAK INDICATOR: Only lights when audio distortion

is present at maximum modulation. Not affected by

position of Volume control.

Antennas

A novel “dipole” antenna system on the receiver improves

operation by providing a “ground” element in addition to the

usual “signal” element. Position the two antennas at 90° in the

form of a “V,” or position the left (“signal”) antenna vertically

and the right (“ground”) antenna horizontally, in the shape of

an “L” (Fig. A). Use the position that performs better in your

operating environment. Be certain to extend both antennas to

their full 15" (38 cm) length by holding them at their bases and

pulling out on their caps. Both antenna elements may be

swiveled to the left and right, but do not attempt to rotate them

in a screwing/unscrewing motion. To do so may damage the

antenna and/or receiver. For best performance, locate the

receiver so its antennas are in direct line-of-sight to the

transmitter's likely operating position.

Receiver Controls and Functions

Rear Panel Controls and Functions (Fig. C)

5. AUDIO OUTPUT JACK: 1/4" TS (Tip-Sleeve) or “mono”

phone jack. Use a shielded cable to connect to an

unbalanced aux-level input of a mixer or amplifier.

6. VOLUME CONTROL: Adjusts the audio level at the 1/4"

output jack. Does not affect AF Peak indicator.

7. CORD HOOK: Loop the cord around the cord hook to keep

the DC plug from pulling out accidentally.

8. POWER INPUT JACK: Connect the DC plug from the

included AC adapter.

Produktspecifikationer

Varumärke:	Audio-Technica
Kategori:	mikrofon
Modell:	Freeway ATW-251/G
Vikt:	180 g
Bredd:	30 mm
Djup:	140 mm
Höjd:	22 mm
Internationell säkerhetskod (IP):	IP20
Hållbarhetscertifikat:	RoHS
Uteffekt:	18 W
Utström:	0.35 A
Spännande:	48 V
AC-ingångsspänning:	90 - 132 V