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.
