4
Transmitter Setup
Battery Selection
An alkaline 9-volt battery is recommended.
UniPak
Transmitter Battery Installation
1. Slide off the battery cover as shown in Figure D.
2. Carefully insert a fresh 9V alkaline battery, observing
correct polarity as marked inside the battery compartment.
The transmitter housing is designed to prevent incorrect
installation of the battery.
Do not force the battery in.
3. Replace the battery cover.
Handheld Transmitter Battery Installation
1. While holding the upper part of the transmitter body just
below the ball-screen, unscrew the lower body cover and
slide it downward to expose the battery compartment.
2. Lift the white “battery keeper” arm, and insert a 9V alkaline
battery. Be certain to observe correct polarity as marked
inside the battery compartment (Fig. E). The transmitter
housing is designed to prevent incorrect installation of the
battery.
Do not force the battery in.
3. Replace the lower body cover.
Do not overtighten.
Battery Condition Indicator
After the battery is installed, turn the power on. The battery
condition indicator LED (Fig. G/H) 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.
UniPak Transmitter Input Connection
Connect an audio input device (microphone or guitar cable)
to the audio input connector on the bottom of the transmitter.
A number of Audio-Technica professional microphones and
cables are available separately, pre-terminated with a UniPak
input connector (see “Optional System Accessories” on page 6).
UniPak Transmitter Antenna
The UniPak transmitter includes a permanently-attached flexible
antenna. For best results, allow the antenna to hang freely and
full length from the bottom of the transmitter. If the received
signal is marginal, experiment with different transmitter positions
on your body or instrument; or try repositioning the receiver.
Do not attempt to remove, replace or change the length
of the transmitting antenna.
ATW-T73 Handheld Transmitter Pad
The ATW-T73 offers a pad switch which increases the maximum
SPL capability of the microphone by 6 dB. The switch is located
under the wire-mesh grille near the base of the element.
Handheld Transmitter Switch Cover
The handheld systems include two switch cover labels that fit
into the grooved recess on the bottom of the transmitter’s lower
body cover. The switch cover label may be used to limit access
to the power switch, or to hide the switch and battery condition
indicator from view.
Fig. D
Fig. E
Fig. F
Fig. G
Fig. H
Input
Connector
Battery Condition
Indicator
Power Switch
(Off/Standby/On)
Power Switch
(Off/Standby/On)
Battery
Condition
Indicator
Guitar
Trimmer (GT)
Microphone
Trimmer (MT)
Channel
Selectors
Battery Polarity
Diagram
Channel
Selectors
Screwdriver
Antenna
