7
OVERALL SYSTEM
UHF Operating Frequency
542.125 MHz to 561.250 MHz
Number of Channels
8
Frequency Stability
±0.005%, Phase Lock Loop Frequency
control
Modulation Mode
FM
Maximum Deviation
±25 kHz
Operating Range
200' typical
Operating Temperature Range
40º F (4ºC) to 110º F (43º C)
Frequency Response
100 Hz to 12 kHz
RECEIVER
Receiving System
Antenna Switching Diversity
Image Rejection
55 dB minimum
Signal-to-noise Ratio
>80 dB at 10 kHz deviation (IEC
weighted), maximum deviation 25 kHz
Total Harmonic Distortion
≤
1% (10 kHz deviation @ 1 kHz)
Sensitivity
25 dBµV (S/N 60 dB at 10 kHz deviation,
IEC-weighted)
Audio Output
Unbalanced
211 mV (-13.5 dBV) (1 kHz modulation,
10 kHz deviation)
Balanced
150 mV (-16.5 dBV) (1 kHz modulation,
10 kHz deviation)
Output Connectors
Unbalanced
1
/
4
" TS (“mono”) phone jack
Balanced
XLRM-type
Power Supply
100-240 VAC (50/60 Hz) to 12V DC 1A
(center positive) switched mode, external
power supply
Dimensions
7.48" (190.0 mm) W x 1.65" (42.0 mm) H
x 5.12" (130.0 mm) D
Net Weight
12.9 oz (365 g)
Accessory Included
Power supply
Specifications
†
UNIPAK
™
TRANSMITTER
RF Power Output
High: 10 mW; Low: 5 mW
Spurious Emissions
Under Federal Regulations
Dynamic Range
>100 dB, A-weighted
Input Connections
High impedance, Low impedance, Bias
Batteries (not included)
Two 1.5V AA Alkaline
Current Consumption
High: 140 mA; Low: 130 mA, typical
Battery Life
Approximately 8 hours (High); 10 hours
(Low), depending on battery type and use
pattern
Dimensions
2.56" (65.0 mm) W x 4.13" (105.0 mm) H
x 0.73” (18.5 mm) D
Net Weight (without batteries)
2.8 oz (80 g)
HANDHELD TRANSMITTER
RF Power Output
10 mW
Spurious Emissions
Under Federal Regulations
Dynamic Range
>100 dB, A-weighted
Microphone Element
Dynamic Unidirectional
Batteries (not included)
Two 1.5V AA Alkaline
Current Consumption
120 mA, typical
Battery Life
Approximately 12 hours depending on
battery type and use pattern
Dimensions
9.65" (245.0 mm) long, 2.11" (53.5 mm)
diameter
Weight (without batteries)
9.1 oz (257 g)
Accessory Included
AT8456a Quiet-Flex
™
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.
Specifications are subject to change without notice.
Optional System Accessories
WIRELESS ESSENTIALS
®
MICROPHONES AND CABLES
All Wireless Essentials
®
accessories are terminated for use with all A-T
UniPak
™
transmitters.
AT829cW
Miniature cardioid condenser lavalier microphone.
MT830cW
Miniature omnidirectional condenser lavalier microphone.
MT830cW-TH “Theater” model, same as MT830cW except beige color mic
and cable.
AT831cW
Miniature cardioid condenser lavalier microphone.
AT889cW
Headworn noise-canceling condenser microphone.
AT892cW MicroSet
®
headworn omnidirectional condenser microphone.
AT892cW-CO Same as AT892cW except cocoa-color mic, earset and
cable.
AT892cW-TH “Theater” model, same as AT892cW except beige color
mic, earset and cable.
AT898cW
Subminiature cardioid condenser lavalier microphone.
AT899cW
Subminiature omnidirectional condenser lavalier microphone.
AT899cW-TH “Theater” model, same as AT899cW except beige color mic
and cable.
ATM350cW
Cardioid condenser instrument microphone.
ATM73cW
Headworn cardioid condenser microphone.
ATM75cW
Headworn cardioid condenser microphone.
PRO 8HEcW Headworn hypercardioid dynamic microphone.
PRO 35cW
Cardioid condenser instrument microphone.
U851cW
Surface-mount wide-range hemi-cardioid condenser
microphone.
U857ALcW
Gooseneck cardioid microphone. Mounts to
5
/
8
"-27 thread.
AT-GCW
Hi-Z instrument/guitar cable with
1
/
4
" phone plug.
XLRW
Connecting cable for UniPak
™
transmitter with an XLRF-type
input connector, for Lo-Z microphones with XLRM-type
output terminations.
TRANSMITTER ACCESSORIES
AT8114
Foam windscreen for handheld transmitter.
AT8456a Quiet-Flex
™
stand clamp for handheld transmitter,
5
/
8
"-27
threads.
700 Series Frequency Channel Plan
Channel
Frequency - MHz
TV Channel
1
542.125
26
2
545.750
3
551.500
27
4
552.000
5
557.875
28
6
559.375
7
560.500
29
8
561.250
Each transmitter/receiver system operates on a choice of eight
switch-selected frequencies. Available frequencies are shown
in the chart. All frequencies may be combined for up to 8
simultaneous operating channels.
700 Series UHF Operating Frequencies
