6
Specifications
†
Optional System Accessories
OVERALL SYSTEM
Operating Frequency UHF band, 728.125 to 740.500 MHz
Number of Channels 100 total
Frequency Stability ±0.005%, Phase Lock Loop
frequency control
Modulation Mode FM
Normal Deviation ±10 kHz
Operating Range 300' typical
Operating Temperature Range 41° F (5° C) to 113° F (45° C)
Frequency Response 100 Hz to 15 kHz
RECEIVER
Receiving System Dual independent receivers, automatic
switching diversity
Image Rejection 50 dB nominal, 45 dB minimum
Signal-to-noise Ratio 110 dB at 30 kHz deviation
(IEC-weighted), maximum modulation
75 kHz
Total Harmonic Distortion
≤
1% (10 kHz deviation at 1 kHz)
Sensitivity 26 dBµV (S/N 60 dB at 5 kHz deviation,
IEC-weighted)
Intermediate Frequency 45 MHz, 10.7 MHz
Audio Output (AF Level set at “0”)
Unbalanced: 50 mV (at 1 kHz, ±5 kHz deviation,
10k ohm load)
Balanced: 15.8 mV (at 1 kHz, ±5 kHz deviation,
10k ohm load)
Output Connectors Unbalanced:
1
/
4
" phone jack
Balanced: XLRM-type
Power Supply 120V AC 60 Hz; or 12-18V DC,
350 mA, with external supply
Dimensions 8.27" (210.0 mm) W x 1.93" (49.0 mm) H
x 8.86" (225.0 mm) D
Weight 3.9 lbs (1.8 kgs)
Accessories Included Two flexible UHF antennas, rack-mount
adapters
UNIPAK
TRANSMITTER
RF Power Output 50 mW Max
Spurious Emissions Under federal regulations
Input Connections High impedance, low impedance, bias
Battery 9V (NEDA type 1604) alkaline, not included
Current Consumption 50 mA typical
Battery Life Approximately 8-10 hours (depending on
battery type and use pattern)
Dimensions 2.44" (62.0 mm) W x 3.35" (85.0 mm) H
x 1.02" (26.0 mm) D
Net Weight (without battery) 2.8 oz (80 grams)
HANDHELD TRANSMITTERS
RF Power Output 50 mW Max
Spurious Emissions Under federal regulations
Microphone Element
ATW-T73 A-T condenser, unidirectional
ATW-T76 A-T Hi-ENERGY
®
dynamic, unidirectional
Battery 9V (NEDA type 1604) alkaline, not included
Current Consumption
ATW-T73 55 mA typical
ATW-T76 50 mA typical
Battery Life Approximately 8 hours (depending on
battery type and use pattern)
Dimensions
ATW-T73 9.63" (244.5 mm) long
ATW-T76 9.17" (233.0 mm) long
Both 1.49" (37.9 mm) body diameter
Net Weight (without battery)
ATW-T73 12.2 oz (345 grams)
ATW-T76 8.5 oz (240 grams)
Accessories Included Stand clamp, switch cover labels
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 condenser
microphone only, terminated for use with UniPak
transmitter. Mounts to
5
/
8
"-27 thread. Includes windscreen.
AT889cW Headworn noise-canceling condenser microphone only,
terminated for use with UniPak transmitter. Includes
windscreen and cable clip.
ATM35cW ATM35 high-intensity miniature 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.
AT8456 Stand clamp for handheld transmitter,
5
/
8
"-27 threads.
AT8431 Stand clamp for handheld transmitter,
5
/
8
"-27 threads.
RECEIVER ACCESSORIES
AT8628 Mounting plate adapter allows rack-mounting two
ATW-R73 receivers side-by-side in a single 19" rack space.
ATW-A20 Pair of UHF ground-plane antennas with
5
/
8
"-27 thread for
mounting to microphone stands, etc. Takes RF cables with
BNC connectors, not included.
ATW-D70 UHF (728-750 MHz) active unity-gain antenna distribution
system provides two “1-in, 4-out” RF channels; connects
a pair of antennas to as many as four diversity receivers.
Includes four DC interconnect cables to power up to four
receivers, eight RF output cables and two rack-mount
adapters. Mounts in a single 19" rack space. Requires
ATW-RDCP cables for use with ATW-R73 receivers
(available separately).
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.
NOTE: Two adapter kits are required when mounting
two receivers side-by-side in a single 19" rack space.
ATW-RDCP Polarity-inverting DC interconnect cables (set of four) for
use in conjunction with ATW-R73 (or like-powered)
receivers.
† In the interest of standards development, A.T.U.S. offers full details on its test methods
to other industry professionals on request.
