9
Specifications
†
OVERALL SYSTEM
Operating Frequency
UHF band, 728.125 to
740.500 MHz
Number of Channels
100 total
Frequency Stability
±0.005%, Phase Lock Loop
frequency control
Modulation Mode
FM
Normal Deviation
±5 kHz
Tone Squelch Frequency
32.768 kHz
Operating Range
300' typical
Operating Temperature Range
41° F (5° C) to 113° F (45° C)
Frequency Response
100 Hz to 15 kHz
ESW-T211 UNIPAK
™
TRANSMITTER
RF Power Output
50 mW Max
(Hi: 10 mW; Lo: 5 mW, typical)
Spurious Emissions
Under federal regulations
Input Connections
High impedance, low impedance,
bias
Bias Voltage
5V, 5 mA Max
High-pass (low-freq. roll-off)
150 Hz, 6 dB per octave
(mic input only)
Batteries
Two 1.5V AA type alkaline,
not included
Current Consumption
Hi: 130 mA; Lo: 120 mA, typical
Battery Life
Hi: 12 hours; Lo: 14 hours,
typical (depending on battery
type and use pattern)
Dimensions
2.56" (65.0 mm) W x 6.57"
(167.0 mm) H x 1.02"
(26.0 mm) D
Net Weight (without batteries)
2.7 oz (75 grams)
Accessory Included
Alternate mounting clip
† In the interest of standards development, A.T.U.S. offers full details on its test
methods to other industry professionals on request.
Transmitter Accessories
(All are terminated for use with the ESW-T211 UniPak transmitter.)
AT829cW
AT829 miniature cardioid condenser microphone only.
Includes clothing clip and windscreen.
MT830cW
MT830R subminiature omnidirectional condenser
microphone only. Includes clothing clip and
windscreen.
MT830cW-TH
”Theater“ model, same as MT830cW except beige
color mic and cable for concealment.
AT831cW
AT831b miniature cardioid condenser microphone
only. Includes clothing clip and windscreen.
AT851cW
AT851a surface-mount wide-range hemi-cardioid
condenser microphone only.
AT857AMLcW
AT857AMLa 19" gooseneck cardioid microphone only.
Mounts to
5
/
8
"-27 thread. Includes windscreen.
AT889cW
Headworn noise-canceling condenser microphone
only. Includes windscreen and cable clip.
ATM35cW
ATM35 high-intensity miniature cardioid condenser
microphone only. Includes AT8418 clip-on instrument
mount.
ATM73cW
ATM73a headworn cardioid condenser microphone
only.
ATM75cW
ATM75 headworn cardioid condenser microphone
only. Includes windscreens and cable clip.
PRO 8HEcW
PRO 8HEx headworn hypercardioid dynamic
microphone. Includes windscreen and cable clip.
PRO 35xcW
PRO 35x cardioid condenser microphone only.
Includes AT8418 clip-on instrument mount.
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 at typically-loud levels, adjust the mixer’s
input trim control so the highest sound pressure level
going into the microphone causes no input overload in
the mixer, and yet permits the mixer’s channel and
output level controls to operate in their “normal” range
(not set too high or too low).
For INSTRUMENT:
Next, while again playing the
instrument at typically-loud levels, adjust the amplifier’s
input control so the highest signal level causes no
overload in the instrument amplifier.
CAUTION! The small trimmer controls are delicate; use
only a small screwdriver or alignment tool with a
maximum
3
/
32
"-wide blade. Do not force the trimmers
beyond their normal 260° range of rotation.
RF Interference
Please note that wireless frequencies are shared with
other radio services. According to Federal
Communications Commission regulations, “Wireless
microphone operations are unprotected from interfer-
ence from other licensed operations in the band. If any
interference is received by any Government or non-
Government operation, the wireless microphone must
cease operation...”
If you need assistance with operation or frequency
selection, please contact your dealer or the
Audio-Technica professional division. Extensive wireless
information also is available on the Audio-Technica Web
site at www.audio-technica.com.
Tips To Obtain The Best Results
• Use only fresh alkaline batteries. Do not use
“general purpose” (carbon-zinc) batteries.
• The transmitter and the receiver should be as
close together as conveniently possible, but
no closer together than three feet. Maintain
line-of-sight between them whenever
possible.
• Each transmitter/receiver pair must be set to
the same channel number.
• A single receiver cannot receive signals from
two transmitters at the same time.
• You need to change channels 1) when a
strong interference signal is received, 2) when
the channel breaks down, or 3) during
multiple-system operation in order to select an
interference-free channel.
• The “MT” or “GT” input control not in use
should be set to minimum.
• Turn the transmitter off when not in use.
Remove the batteries if the transmitter is not
to be used for a period of time.
