Audio-technica ESW-T211 User Manual

ESW-T211

UHF UniPak™Transmitter

Installation and Operation

Audio-Technica Engineered Sound®wireless systems are offered as separate receiver and transmitter units, rather than in predetermined combinations, for greatest system flexibility. Operating details for Engineered Sound receivers and overall system operation are included with each receiver.

Engineered Sound receivers feature a sophisticated Tone Lock

™

tone squelch system that opens only when an Engineered Sound transmitter is detected, reducing the possibility of interference. As a result, Engineered Sound transmitters and receivers must be used together and should not be used with components from other Audio-Technica wireless systems, or with those of other manufacturers.

Please note that in multiple-system applications there must be a transmitter-receiver pair set to a separate frequency for each input desired (only one transmitter at a time for each receiver). Because the wireless frequencies are on UHF TV frequencies, only certain wireless frequencies may be useable in a particular geographic area. Also, only certain of the available operating frequencies may be used together. (Suggestions for multiple-system frequency grouping will be found on pages 10-11.)

Battery Selection and Installation

The transmitter uses two 1.5V AA batteries, not included. Alkaline type is recommended. Always replace both batteries.

Make certain the transmitter power switch is turned Off before replacing batteries.

Battery Installation

1. Slide down the battery latching cover and pull out the battery drawer as shown in Figure A. (A screwdriver for adjusting operating frequency is stored on the back of the drawer.)

Fig. A

Introduction

BATT

OFF

PWR

OPEN

Transmitter Setup

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 medicaldevice 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.

Fig. C Setup Control Panel

LoHiLo

Hi Lo

POWER

(Refer to Fig. C, Setup Control Panel)

INPUT TRIMMERS: These controls permit adjustment of Mic Level (MT) and Guitar Level (GT) to match a wide range of input devices, as described in a following section. The trimmer

not

in use should be set to

minimum.

CHANNEL SWITCHES: The left channel selector switch corresponds to the receiver‘s left-column channel display number (tens); the right switch corresponds to the receiver‘s right-column channel display number (units). Always turn the transmitter off when changing frequencies.

RF POWER / BATTERY-SAVE SWITCH: As supplied, the switch is set in the “Hi” position for maximum range. Switching to the “Lo” position increases battery life somewhat by reducing power. (Note: Effective range may decrease when the switch is set at the Lo position.)

Power/

Battery-

Save

Switch

x10 x1

Channel

Switches

Input Level

Guitar Mic

Observe correct polarity as marked inside the bat-

tery compartment

and carefully insert two fresh 1.5V AA alkaline batteries. Because there is some variation in actual battery dimensions, make certain the batteries are

fully

seated in the battery compartment.

3. Carefully insert the battery drawer fully,

but do not

force the drawer in

. Then slide the cover up to latch

the drawer.

Battery Condition Indicator

After the batteries are installed, turn the power on. The red battery condition indicator LED on the user control panel should flash momentarily and the green indicator should come on. If this does not happen, the batteries are installed incorrectly or they are dead. If the yellow or red indicator stays on, the battery voltage is low and the batteries should be replaced. If this happens during use, replace the batteries immediately to ensure continued operation.

Transmitter Input Connection

Connect an audio input device (microphone or guitar cable) to the audio input connector beside the user control panel (Fig. B).

A number of Audio-Technica professional microphones and cables are available separately, pre-terminated with a UniPak

™

input connector (see “Transmitter

Accessories” on page 9).

Transmitter Controls

(Refer to Fig. B, User Control Panel)

POWER SWITCH: The Power switch controls the entire transmitter. Its handle is designed to be felt and activated easily even through clothing or other garments. There is about a half-second delay after transmitter turn-on before the receiver’s Tone Lock squelch un-mutes.

HIGH-PASS SWITCH: The ESW-T211 offers an audio high-pass switch which reduces low frequencies, when desired. It affects only the microphone input and is recessed to avoid accidental activation. Use this switch to reduce pickup of low-frequency noise caused by clothing and/or user movement.

High-pass

Switch

BATT

OFF

PWR

Fig. B User Control Panel

Power

Switch

Audio Input

Connector

Battery Condition Indicator

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