Setting Levels (Continued)
ATW-T702 Handheld Transmitter
CAUTION!
The small trimmer controls are delicate; use only
the supplied screwdriver. Do not force the trimmers beyond
their normal 180° range of rotation.
Return the screwdriver to its storage clip when not in use.
ATW-T701 UniPak
™
Transmitter
Trim controls in the UniPak transmitter (Fig. I) will enable you to
use microphones or instruments with different output levels.
1.
For MIC: Set MIC (microphone trim) control fully clockwise
(maximum) and INST (instrument trim) control fully counter
clockwise (low).
For INSTRUMENT: Set INST (instrument trim) control fully
clockwise (maximum) and MIC (microphone trim) control
fully counterclockwise (low).
2. Set the receiver's AF Level control to its full clockwise
position (maximum). (Fig. C on page 4).
3. Plug the mic or instrument into the transmitter and power
up the system.
4. For MIC: Make an initial adjustment of the mixer's level
controls that will allow audio through the system.
For INSTRUMENT: Make an initial adjustment of the
instrument amplifier input level control that will allow audio
through the system.
5. For MIC: While speaking/singing into the microphone at
typically loud levels, check the AF peak indicator on the
receiver. If AF peak indicator is easily illuminated and
distortion is heard through the system, it may be necessary
to adjust the transmitter audio input level. To adjust the
transmitter audio input level, gently turn the microphone
trim control counterclockwise until the AF peak indicator is
illuminated only on audio peaks.
For INSTRUMENT: While playing the instrument at typically
loud levels, check the AF peak indicator on the receiver. If
AF peak indicator is easily illuminated and distortion is heard
through the system, it may be necessary to adjust the
transmitter audio input level. To adjust the transmitter audio
input level, gently turn the instrument trim control
counterclockwise until the AF peak indicator is illuminated
only on audio peaks.
6
Figure H-Handheld Transmitter Interior View
System Operation
(Continued)
6. For MIC: 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: While again playing the instrument at
typically loud levels, adjust the receiver's AF Level control
so the highest signal level causes no input overload in the
instrument amplifier and yet permits the amplifier's input
level controls to operate in their “normal” range (not set too
high or too low).
Note: If the mixer cannot be adjusted to operate in its normal
range without distortion, adjust the receiver's AF Level Control
(turn counterclockwise) until the mixer/amplifier is no longer
overloaded.
Note: RF power may be set to high or low via the RF power
select switch on the side of the UniPak transmitter. (Fig. I.)
While the high setting normally provides maximum operating
range, the low setting will help extend battery life. The low
setting may also be preferred in multi-channel systems, or
when operating very close to the receiver, to reduce the
possibility of interference or overload.
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 interference 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
Audio-Technica. Extensive wireless information is also available
on the Audio-Technica Web site at www.audio-technica.com.
Channel
Selector
Switch
Trim Control (Volume)
Figure I-UniPak
™
Transmitter Side Views
Instrument Trim
Control (Volume)
Screwdriver
RF Power
Select
Switch
Microphone Trim
Control (Volume)
Transmitter
Door Catch
