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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 battery.

Be certain to observe correct polarity as marked inside the 
battery compartment (Fig. G). 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 Selection

An alkaline 9-volt battery is recommended.

UniPak

Transmitter Battery Installation:

1. Slide off the battery cover as shown in Figure E.

2. 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.

3. Replace the battery cover (Fig. F).

Battery Condition Indicator:

The red battery condition indicator (Fig. I/J) 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.

Battery-Save Switch:

Both transmitters feature battery-save switches (Fig. E/G). As
supplied, the switch is set in the “H” (high) position for maxi-
mum range. Switching to the “L” (low) position increases battery
life by reducing power. (Note: Effective range decreases when
the switch is set at the “L” position.)

UniPak Transmitter Input Connection:

Connect an audio input device (microphone or guitar cable) to
the HRS input jack 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.

Transmitter Setup

Fig. I  

Fig. J  

Fig. G  

Fig. H  

Fig. E  

Fig. F  

TRANSMITTER

UniPak™

BATT.

ON

OFF

ST.BY

INPUT

POWER BATT. ANT

OFF

ON

ST

4

Battery Polarity

Diagram

Battery-Save

Switch

Battery Polarity

Diagram

Battery-Save Switch

(under screwdriver clip)

Screwdriver

Gain Trimmer

(VR1)

Guitar Trimmer

(GT)

Microphone

Trimmer (MT)

Battery Condition

Indicator

Power Switch

On/Standby/Off

Battery Condition

Indicator

Input

Connector

Power Switch

Off/Standby/On

Antenna

Содержание PRO 227

Страница 1: ...less Systems PRO 227 UniPak System with Instrument Cable PRO 227H UniPak System with Headworn Microphone PRO 227L UniPak System with Lavalier Microphone PRO 228 Handheld Dynamic Microphone System Installation and Operation ...

Страница 2: ...the back of the receiv er to the mixer If the input of the mixer is an XLR type input connect a cable from the balanced XLR type audio output on the back of the receiver to the mixer The two isolated audio outputs permit simultaneous feeds to both unbalanced and balanced inputs For example both a gui tar amp and a mixer can be driven by the receiver Antennas Assemble the two whip antennas to the s...

Страница 3: ...ctor for tuner B Attach the antenna directly or extend it with an antenna cable 9 BALANCED AUDIO OUTPUT JACK XLRM type connector A standard 2 conductor shielded cable can be used to connect the receiver output to a balanced aux level input on a mixer 10 GROUND LIFT SWITCH Disconnects the ground pin of the balanced output 9 from ground Normally the switch should be to the left ground connected If h...

Страница 4: ...in the battery Replace it at once for continued operation of the transmitter Battery Save Switch Both transmitters feature battery save switches Fig E G As supplied the switch is set in the H high position for maxi mum range Switching to the L low position increases battery life by reducing power Note Effective range decreases when the switch is set at the L position UniPak Transmitter Input Conne...

Страница 5: ... cover No further transmitter gain adjustments should be needed as long as the input device and the acoustic input level are not changed Handheld Transmitter Unscrew the lower body cover and slide it downward exposing the screwdriver and gain trimmer Fig H Remove the screw driver and gently turn this gain trimmer control to its full counter clockwise position With acoustic input to the microphone ...

Страница 6: ...r UniPak transmitter AT8431 Stand clamp for handheld transmitter 5 8 27 threads XLRW Connecting cable for UniPak transmitter with an XLRF type input connector for Lo Z microphones with XLRM type output terminations 6 Specifications OVERALL SYSTEM Operating Frequency VHF high band 169 MHz to 216 MHz Frequency Stability 0 005 single frequency crystal controlled Modulation Mode FM Maximum Deviation R...

Страница 7: ...here the serial numbers appear inside the battery compartment of each transmitter and on the back of each receiver Operating Frequency Freq Code ____ ____ ____ Frequency ____ ____ ____ ____ ____ ____ MHz Receiver Model __________________ Serial Number ____ ____ ____ ____ ____ ____ ____ Transmitter Model __________________ Serial Number ____ ____ ____ ____ ____ ____ ____ Application Freq Code Freq ...

Страница 8: ...ncidental or 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 Audio Technica U S Inc 1221 Commerce Drive Stow Ohio 44224 330 686 2600 P50957 B W 1996 Aud...

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