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Optional System Accessories

MICROPHONES AND CABLES

AT829cW

AT829 miniature cardioid condenser microphone only, 
terminated for use with UniPak transmitter. Includes 
clothing clip and windscreen.

MT830cW

MT830R subminiature omnidirectional condenser 
microphone only, terminated for use with UniPak 
transmitter. 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, 
terminated for use with UniPak transmitter. Includes 
clothing clip and windscreen.

AT851cW

AT851a surface-mount wide-range hemi-cardioid condenser
microphone only, terminated for use with UniPak 
transmitter.

AT857AMLcW

AT857AMLa 19" gooseneck cardioid microphone only, 
terminated for use with UniPak transmitter. Mounts to 

5

/

8

"-27 thread. Includes windscreen.

ATM35cW

ATM35 high-intensity cardioid condenser microphone only, 
terminated for use with UniPak transmitter. Includes AT8418 
clip-on instrument mount.

ATM73cW

ATM73a headworn cardioid condenser microphone only, 
terminated for use with UniPak transmitter.

ATM75cW

ATM75 headworn cardioid condenser microphone only, 
terminated for use with UniPak transmitter. Includes 
windscreens and cable clip.

PRO 8HEcW

PRO 8HEx headworn hypercardioid dynamic microphone, 
terminated for use with UniPak transmitter. Includes 
windscreen and cable clip.

PRO 35xcW

PRO 35x cardioid condenser microphone only, terminated 
for use with UniPak transmitter. Includes AT8418 clip-on 
instrument mount.

AT-GCW

Hi-Z instrument/guitar cable with 

1

/

4

" phone plug, 

terminated for use with UniPak transmitter.

XLRW

Connecting cable for UniPak transmitter with an XLRF-type 
input connector, for Lo-Z microphones with XLRM-type 
output terminations.

TRANSMITTER ACCESSORIES

ATW-VP10

Vinyl pouch with belt clip to hold UniPak transmitter.

AT8114

Foam windscreen for handheld transmitter.

AT8141

Water-resistant pouch for UniPak transmitter.

AT8431

Stand clamp for handheld transmitter, 

5

/

8

"-27 threads.

RECEIVER ACCESSORIES

ATW-A10

Pair of ground-plane antennas with 

5

/

8

"-27 thread for 

mounting to mic stands, etc. Takes RF cables with PL259 
connectors, not included.

ATW-D12a

Active, unity-gain antenna distribution system provides two 
“1-in, 4-out” amplifier/splitters; connects a pair of antennas 
to as many as four diversity receivers. Includes two 
antennas, two input cable adapters and eight output 
cables.

ATW-RA1

Rack-mount antenna kit brings antenna inputs to the front 
of receiver for ease of setup, or when receiver is enclosed 
in a metal rack. Includes a pair of extendible antennas.

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 Range

±30 kHz, traveling frequencies ±15 kHz

Operating Range

200' minimum

Operating Temperature Range

40° F (4° C) to 110° F (43° C)

Frequency Response

100 Hz to 15 kHz

RECEIVER

Receiving System

Dual independent receivers, automatic-
switching diversity reception

Image Rejection

60 dB

Signal-to-noise Ratio

>80 dB at 10 kHz deviation (IEC-weighted)

Total Harmonic Distortion

1% (10 kHz deviation @ 1 kHz)

Sensitivity

10 µV for 60 dB S/N (IEC -weighted)

Audio Output

Unbalanced

350 mV (at 1 kHz, ±10 kHz deviation, 
10k ohm load)

Balanced

220 mV (at 1 kHz, ±10 kHz deviation, 
10k ohm load)

Output Connectors

Unbalanced

1

/

4

" phone jack

Balanced

XLRM-type

Power Supply

12-18V DC, 350 mA, with provided 
AC adapter

Dimensions

16.93" (430.0 mm) W x 1.92" (48.8 mm) H
x 7.28" (185.0 mm) D

Weight

5.5 lbs (2.5 kgs)

Accessories Included

Two whip antennas, rack mount adapters,
AD1205A AC adapter

UNIPAK

TRANSMITTER

RF Power Output

50 mW Max

Spurious Emissions

Under federal regulations

Dynamic Range

90 dB

Input Connections

High impedance, low impedance, bias

Battery

9V (NEDA type 1604) alkaline, not included

Current Consumption

30 mA typical

Battery Life

Approximately 15 hours in High position
Approximately 20 hours in Low position

Dimensions

2.56" (65.0 mm) W x 4.33" (110.0 mm) H 
x 1.00" (25.4 mm) D

Net Weight (without battery)

2.8 oz (78 grams)

HANDHELD TRANSMITTER

Polar Pattern

Unidirectional

RF Power Output

50 mW Max

Spurious Emissions

Under federal regulations

Dynamic Range

90 dB

Microphone Element

Audio -Technica Hi-ENERGY

®

dynamic

Battery

9V (NEDA type 1604) alkaline, not included

Current Consumption

30 mA typical

Battery Life

Approximately 15 hours in “H” (high) position
Approximately 20 hours in “L” (low) position

Dimensions

9.50" (241.3 mm) long, 2.10" (53.3 mm) dia.

Net Weight (without battery)

12.7 oz (360 grams)

Accessory Included

Stand clamp

† In the interest of standards development, A.T.U.S. offers full details on its test methods 

to other industry professionals on request.

Summary of Contents for ATW-1127

Page 1: ...1100 Series Professional VHF Wireless Systems ATW 1127 UniPak Transmitter System ATW 1128 Handheld Dynamic Microphone System Installation and Operation ...

Page 2: ...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 guitar amp and a mixer can be driven by the receiver Antennas Assemble the two whip antennas to the special connectors provided ...

Page 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...

Page 4: ...attery 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 All 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 b...

Page 5: ...er transmitter gain adjustments should be needed as long as the input device and the acoustic input level are not changed Adjusting Input Level 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 While speaking singing into the...

Page 6: ... amplifier splitters connects a pair of antennas to as many as four diversity receivers Includes two antennas two input cable adapters and eight output cables ATW RA1 Rack mount antenna kit brings antenna inputs to the front of receiver for ease of setup or when receiver is enclosed in a metal rack Includes a pair of extendible antennas 6 Specifications OVERALL SYSTEM Operating Frequency VHF high ...

Page 7: ...ference please record your system information here the serial numbers appear inside the battery compartment of each transmitter and on the bottom of each receiver Operating Frequency Freq Code ____ ____ ____ Frequency ____ ____ ____ ____ ____ ____ MHz Receiver Model __________________ Serial Number ____ ____ ____ ____ ____ ____ ____ Transmitter Model __________________ Serial Number ____ ____ ____...

Page 8: ... Commerce Drive Stow Ohio 44224 Except to the extent precluded by applicable state law A T U S will have no liability for any consequential incidental 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 plea...

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