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Turn down the mixer/amplifier level before starting
up the wireless system.

Switch on the receiver. Do 

not

switch on the 

transmitter yet.

Receiver On…

The Channel Designator Display will light. If any of the
RF LEDs light up at this point, there may be RF 
interference in the area. If this occurs, select another
frequency using the front-panel channel selectors.
While holding in the “Set” button, press the “Up” or
“Down” button to access the desired frequency; then
release the Set button to select the channel.

Transmitter On…

Before turning on the transmitter, use the provided
screwdriver to set the transmitter channel selector
switches (Fig. C) to the same numbers as those dis-
played on the receiver. Always turn the transmitter off
when changing frequencies. When the transmitter is
switched on and in normal operation, the receiver’s RF
signal level indicators will light up from left to right. For
optimum performance at least four, and preferably five,
of the signal strength indicators should light up when
the transmitter is switched on. One of the Tuner LEDs
(A or B) also will light up when the transmitter is on,
indicating that its signal has been received and the
receiver’s Tone Lock squelch circuit has opened.

Setting Levels

Although Engineered Sound receivers require no level
adjustment, correct adjustment of transmitter audio
input and mixer/amplifier input and output levels is
important for optimum system performance.

Transmitter Input Levels

Input trimmer controls in the UniPak transmitter (Fig. C)
will enable you to use microphones or instruments with
different output levels.
1. Set both the transmitter Mic Level (MT) and Guitar
Level (GT) controls to their full counter-clockwise 
position (minimum). (The level control not being used
should always be set to minimum.)
2. Plug the mic or instrument into the transmitter and
power up the system.
3. 

For MIC:

Make an initial adjustment of the mixer’s

level controls that will allow audio through the system
as you increase the transmitter’s Mic Level.

For INSTRUMENT:

Make an initial adjustment of

the instrument amplifier input level control that will
allow audio through the system as you increase the 
transmitter’s Guitar Level.
4. 

For MIC:

While speaking/singing into the micro-

phone at typically-loud levels, turn up the transmitter’s
Mic Level (MT) control until the maximum audio output
of the mic lights about three or four green LED seg-
ments on the receiver’s AF Level indicator.

For INSTRUMENT: 

While playing the instrument at 

typically-loud levels, turn up the transmitter’s Guitar
Level (GT) control until the maximum audio output of
the instrument lights about three or four green LED
segments on the receiver’s AF Level indicator.

7

System Operation

6

Do 

Not 

Remove

Fig. D

Transmitter Antenna

The ESW-T211 features a field-replaceable antenna, in
the unlikely event that it becomes damaged. Use only
an original Audio-Technica replacement part, available
from the Audio-Technica service department.  
1. Referring to Figure E, fully unscrew only screw “A”
and remove it. Do 

not

remove the other case screw. 

2. Pull the broken antenna straight out of the transmit-
ter case, without twisting it.  
3. 

Carefully

insert the replacement antenna, without

twisting it, and without damaging the PC board trace.
Look in the open hole “A” to assure that the antenna is
fully seated.  
4. Reinstall screw “A,” tightening only until it is snug.

Fig. E

Screw “A”

Mounting Clips

The ESW-T211 is supplied with two mounting clips for
attachment to different types/shapes of objects.
Attach the clips by springing their ends into the two
holes on the sides of the transmitter case (Fig. D). The
clips may be installed with the case positioned either
“up” or “down,” depending upon which is preferred
for the application.

Summary of Contents for ESW-T211

Page 1: ...ESW T211 UHF UniPak Transmitter Installation and Operation ...

Page 2: ...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 screwdriv er for adjusting operating frequency is stored on the back of the drawer Fig A Introduction 3 B A T T O F F O N P W R OPEN OPEN Transmitter Setup 2 N...

Page 3: ... 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...

Page 4: ...to minimum 2 Plug the mic or instrument into the transmitter and power up the system 3 For MIC Make an initial adjustment of the mixer s level controls that will allow audio through the system as you increase the transmitter s Mic Level For INSTRUMENT Make an initial adjustment of the instrument amplifier input level control that will allow audio through the system as you increase the transmitter ...

Page 5: ...t AT GCW Hi Z instrument guitar cable with 1 4 phone plug XLRW Connecting cable for UniPak transmitter with an XLRF type input connector for Lo Z microphones with XLRM type output terminations 8 NOTE Do not set the transmitter level too high as indicated by lighting of the red LED doing so will cause the system to overload and distort 5 For MIC Next while again speaking singing into the microphone...

Page 6: ...69 76 77 86 All of Group B 10 Multi channel Systems Following are groupings of frequencies suggested for multi channel wireless systems Group A Channels 00 02 08 15 46 50 60 or 62 71 76 80 93 99 or Group B Channels 01 03 07 25 30 41 44 56 69 76 77 86 For use where TV Channel 57 is operating Channels 50 60 or 62 71 76 80 93 99 from Group A or Channels 56 69 76 77 86 from Group B Frequency and Chann...

Page 7: ...s defects due to normal wear abuse shipping damage or failure to use product in accordance with the instructions This warranty is void in the event of unauthorized repair or modification or removal or defacing of the product labeling For return approval and shipping information contact the Service Dept Audio Technica U S Inc 1221 Commerce Drive Stow Ohio 44224 Except to the extent precluded by app...

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