background image

Lift the white “battery keeper” arm until it sticks straight out from the mic body (no higher). Then
carefully insert a fresh 9-volt 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.

Move the white arm down until it presses on the battery, then slide the lower body portion back
up until it covers the battery and engages the threads of the upper body. Screw the body back
together; do not overtighten.

Move the power switch on the bottom of transmitter to “On” and make certain the red battery
condition indicator is strongly illuminated.
Return the power switch to the “Off” position.

Battery Condition Indicator

The red battery condition indicator (Fig. E/F) should light strongly with a fresh battery. As the 
battery weakens, the indicator will grow dimmer. When the indicator becomes very dim or 
goes out, there is little life left in the battery. Replace it at once for continued operation of 
the transmitter.

All transmitters feature battery-save switches (Fig. B/D). As supplied, the switch is set in the High
position for maximum range. Switching to the Low position increases battery life by reducing 
power. (Note: Effective range decreases when the switch is set in the Low position.)

UniPak

Transmitter Input Connection

Connect an audio input device (microphone or guitar cable) to the input connector on the bottom
of the transmitter.

Transmitting 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.

5

Fig. E  

Fig. F  

BATT.

ON

OFF

ST.BY

INPUT

POWER BATT. ANT

OFF

ON

ST

Battery Condition

Indicator

Power Switch

On/Standby/Off

Battery Condition

Indicator

Input

Connector

Power Switch

Off/Standby/On

Antenna

Transmitter Setup

Battery Selection

An alkaline 9-volt battery is recommended.

UniPak

Transmitter Battery Installation

Make certain the power switch on the bottom of transmitter is in the “Off” position.

Slide off the battery cover as shown in Figure B.

4

Carefully insert a fresh 9-volt 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.

Replace the battery cover (Fig. C). 

Move the power switch to “On” and make certain the red battery condition indicator is strongly
illuminated.

Return the power switch to the “Off” position.

Handheld Transmitter Battery Installation

Make certain the power switch on the bottom of transmitter is in the “Off” position.

While holding the upper part of the transmitter body just below the ball-screen, unscrew the lower
body and slide it downward to expose the battery compartment (Fig. D). 

Do not attempt to pull the

lower body farther down, or to gain access to the electronics.

Fig. B  

Fig. C  

TRANSMITTER

UniPak™

Battery Polarity

Diagram

Battery-Save Switch

(under screwdriver clip)

Guitar Trimmer

(GT)

Microphone

Trimmer (MT)

Fig. D  

Battery Polarity

Diagram

Battery-Save 

Switch

Summary of Contents for PRO 127G

Page 1: ...reless Systems PRO 127G UniPak System with Guitar Cable PRO 127H UniPak System with Headworn Microphone PRO 127L UniPak System with Lavalier Microphone PRO 128 Handheld Dynamic Microphone System Installation and Operation ...

Page 2: ...e system is the successful result of years of design and manufacturing experience Each professional wireless system includes a receiver and either a body pack or a handheld transmitter on a specific crystal controlled frequency The versatile UniPak body pack transmitter has both low and high impedance inputs plus a bias connection for use with dynamic and electret condenser microphones as well as ...

Page 3: ...or 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 5 Fig E Fig F BATT ON OFF ST BY INPUT POWER BATT ANT OFF ON ST Battery Con...

Page 4: ...level controls to operate in their normal range not set too high or too low This provides the optimum signal to noise for the entire system 9 Turn the transmitter off when not in use Remove the battery if the transmitter is not to be used for a period of time 10 Unplug the AC adapter from the AC outlet when the system is not in use 6 System Operation Check the frequency of the system against the c...

Page 5: ...ence please record them in the space provided below Because most of these authorized frequencies are shared with TV broadcasting frequency selec tion is largely dependent upon which TV broadcast channels are in operation where the wireless system is to be used RF Interference If you encounter receiving interference from other than an operating TV station often it can be eliminated by adjusting the...

Page 6: ...ssentials Microphones and Cables All Wireless Essentials accessories are terminated for use with ATW T27 and other UniPak transmitters AT829cW Miniature cardioid condenser lavalier microphone Includes clothing clip and windscreen Provided with PRO 127L system MT830cW Subminiature omnidirectional condenser lavalier microphone Includes clothing clip and windscreen MT830cW TH Theater model same as MT...

Page 7: ...r special damages any warranty of merchantability or fitness for particular purpose expires when this warranty expires This warranty gives you specific legal rights and you may have other rights which vary from state to state Outside the U S A please contact your local dealer for warranty details Notice to individuals with implanted cardiac pacemakers or AICD devices Any source of RF radio frequen...

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