Audio Technica ESW-T212 Installation And Operation Manual

ESW-T212

UHF Plug-on Transmitter

Installation and Operation

3

Battery Condition Indicator

After the battery is installed, turn the power on. The
battery condition indicator LED (Fig. C, page 4) should
flash momentarily. If it does not, the battery is installed
incorrectly or it is dead.

If the indicator LED stays on (does not flash), the
battery voltage is low and the battery should be
replaced. If this happens during use, replace the
battery immediately to ensure continued operation.

Transmitter Input Connection

The ESW-T212 transmitter has a 3-pin XLRF-type input
connector with a locking collar. Use a dynamic
microphone, or a condenser mic with an internal
battery. To attach the microphone, rotate the threaded
locking collar

fully

clockwise (“down”) until it reaches
the transmitter housing (Fig. B1). Then rotate the collar
back “up” one or two turns to expose the microphone
latch.

Press the microphone and transmitter together (Fig.
B2), making certain that the latch “clicks” into the base
of the mic. Pull on the mic to make certain it is latched
on the connector.

Continue to rotate the threaded collar “up” until it is

firmly

against the end of the mic (Fig. B3). Make
certain the mic is securely attached before use.
To detach the microphone, reverse the steps above.

Always

loosen the threaded collar

fully

before

attempting to disconnect the mic.

The ESW-T212 provides a bias voltage of +5V on Pins
2 and 3 which will power some “battery/phantom”
mics designed to work at this low voltage. However,
the ESW-T212 will not power a “phantom powered”
mic which requires the more-typical 12 to 48 volts. Use
of the bias voltage will reduce battery life slightly.
Presence of the bias voltage will not affect dynamic
microphones.

Pin 1 Case Ground
Pin 2 Audio “+” and 5V DC bias
Pin 3 Audio “–” and 5V DC bias

Transmitting Antenna

The ESW-T212’s plug-on transmitter’s antenna is
housed in a non-metallic section between the metal
transmitter case and the mic connector. For best opera­tion, hold the body of the microphone itself and do not
cover or obstruct the antenna area.

Fig. B

B1

B2

B3

Latch

“CLICK”

2

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. 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.

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 6-7.)

Battery Selection and Installation

Always use a fresh alkaline 9V battery. Turn the Power
switch “Off” before inserting a battery.

Open the hinged battery door. Insert the battery,
observing correct polarity as marked inside the battery
compartment. Close the battery door.

Do not force the

door closed.

Introduction

Transmitter Setup