FREEWAY ATW-701 Owner's manual

700 Series Professional
UHF Wireless Systems
AT -701 UniPak®Transmitter System
AT -701/G Guitar System
AT -701/H eadworn Microphone System
AT -701/H92 eadworn Microphone System
AT -701/H92-TH eadworn Microphone System
AT -701/L Lavalier Microphone System
AT -702 andheld Dynamic Microphone System
Installation and Operation

Professional UHF Wireless Systems
Installation and Operation
2
CAUTION! Electrical shock can result from removal of the
receiver cover. Refer servicing to qualified service personnel.
No user-serviceable parts inside. Do not expose to rain or
moisture.
The circuits inside the receiver and transmitter have been
precisely adjusted for optimum performance and compli-
ance with federal regulations. Do not attempt to open the
receiver or transmitter. To do so will void the warranty,
and may cause improper operation.
This device complies with part 15 of the FCC Rules.
Operation is subject to the condition that this device does
not cause harmful interference.
This device complies with INDUSTRY CANADA R.S.S. 210,
en conformité avec IC: RSS-210/CNR210. Operation is sub-
ject to the following conditions: 1) This device may not
cause harmful interference and 2) this device must accept
any interference received, including interference which
may cause undesired operation. Changes or
modifications not expressly approved by Audio-Technica
could void your authority to operate this equipment.
The ATW-R700 receiver features Diversity Reception. Logic
circuitry monitors reception, selecting the superior signal from
two antennas, providing better sound quality and reducing the
possibility of interference and dropouts. Soft-touch controls
provide convenient access to selection of operating frequency
and automatic scanning, while an LED display indicates
selected channel and scanning operation.
The versatile ATW-T701 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
i-Z instrument pickups. The UniPak
®
transmitter also offers
separate trim controls for guitar and microphone, plus
switchable high/low RF power.
The ATW-T702 handheld dynamic microphone/transmitter
features a rugged dynamic unidirectional element designed for
professional live-sound venues.
Transmitters in the 700 Series use two 1.5V AA batteries for
economical operation and wide availability. Both transmitters
also feature a multi-color Power/Mute/Battery indicator.
700 Series receivers feature a sophisticated Tone Lock™tone
squelch system that opens the receiver's audio output only
when a 700 Series transmitter is detected, reducing the
possibility of interference. As a result, 700 Series transmitters
and receivers must be used together and should not be used
with components from other Audio-Technica wireless systems,
or with those of other manufacturers.
Please note that in multiple-system applications there must be
a transmitter-receiver combination set to a separate channel
(frequency) for each input desired (only one transmitter for each
receiver).
Because the wireless frequencies are within U F TV frequency
bands, only certain channels (operating frequencies) may be
useable in a particular geographic area. The eight channels
(operating frequencies) that are used in the 700 Series have
been selected for multi-channel compatibility. Subject to
frequency availability in a particular geographic area, any of
these eight channels may be used together.
The operating frequencies that correspond to each of the eight
channels are listed on page 7.
Introduction
Notice to individu ls with implanted cardiac pacemakers
or AICD devices:
Any source of RF (radio frequency) energy may interfere with
normal functioning of the implanted device. All wireless
microphones have low-power transmitters (less than 0.05
watts output) which are unlikely to cause difficulty, especially
if they are at least a few inches away. owever, since a “body-
pack” mic transmitter typically is placed against the body, we
suggest attaching it at the belt, rather than in a shirt pocket
where it may be immediately adjacent to the medical device.
Note also that any medical-device disruption will cease when
the RF transmitting source is turned off. Please contact your
physician or medical-device provider if you have any questions,
or experience any problems with the use of this or any other
RF equipment.
Thank you for choosing an Audio-Technica professional wireless
system. You have joined thousands of other satisfied customers
who have chosen our products because of their quality,
performance and reliability. This Audio-Technica wireless
microphone system is the successful result of years of design
and manufacturing experience.
Each 700 Series wireless system provides a choice of eight
PLL synthesized U F frequencies in the 542-561 M z band
(TV channels 26-29). All 700 Series wireless systems offer both
manual and automatic frequency scanning. Each wireless
system includes a receiver and either a body-pack or handheld
transmitter. Individual components are also available separately.

Loc tion
For best operation the receiver should be at least 3 ft. (1 m)
above the ground and at least 3 ft. away from a wall or metal
surface to minimize reflections. The transmitter should be at
least 3 ft. from the receiver, as shown in Figure A. Keep
antennas away from noise sources such as digital equipment,
motors, automobiles and neon lights, as well as away from
large metal objects.
Output Connections
There are two audio outputs on the back panel: balanced
(-16.5 dBV) and unbalanced (-13.5 dBV). Use shielded audio
cable for the connection between the receiver and the mixer. If
the input of the mixer is a 1/4" jack, connect a cable from the 1/4"
unbalanced audio output on the back of the receiver housing
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 panel to the mixer.
Receiver Installation
3
Antenn s
Extend the permanently attached U F antennas. The antennas
are normally positioned in the shape of a “V” (both 45° from
vertical) for best reception. Diversity Indicators on the receiver
front panel will indicate which antenna is active.
Power Connections
Connect the DC plug on the included AC power adapter to the
DC power input on the back of the receiver. Secure the cord
over the cord hook on the back of the receiver, to keep the plug
from being detached by an accidental tug on the cord. Then
plug the adapter into a standard 120 Volt 60 z AC power outlet.
Figure A
Receiver Controls and Functions
Figure B1-Antenn Position
11
Figure B2-Front P nel Controls nd Functions
2
1. ANTENNAS: Position the antennas as shown in Figure B1.
Fully extend both antennas by pulling on the endcaps.
2. AF PEAK INDICATOR: Indicates when maximum transmitter
modulation without distortion has been reached. Not affected
by position of Volume control (Fig. C).
3. LED WINDOW: LED Display indicates channel setting and
scanning operation.
4. DIVERSITY INDICATORS: Indicates which antenna (A or B)
has better reception and is in operation.
5. SELECT BUTTON (for m nu l ch nnel selection):
Press the Select button repeatedly until desired channel is
reached. Press and hold the Set/Scan button to manually
set the receiver to indicated channel. Channel number will
stop flashing. (A brief touch of the Set/Scan button will
revert to previously set channel). If the Set button is not
pressed within 10 seconds to confirm the selection, the
system will revert to its original channel.
6. SET/SCAN BUTTON: The Set/Scan button can be used in
two ways: 1) in conjunction with the Select button to permit
manual selection of an operating channel in M nu l Set
Mode (see “Select button” description above); and 2)
Automatic Scan/Set Mode, to initiate the automatic channel
scan and selection, as follows:
Autom tic Sc n/Set Mode: Press and hold the Set/Scan
button for about two seconds. The current channel will flash
three times quickly; then the system will begin to scan for
the next open channel. When it finds an open channel, it
will flash the open channel three times and then set the
channel. (If an open channel is not found, the automatic
scan will return to the original channel and flash 5 times.)
3 4 5 6

4
Receiver Controls and Functions (Continued)
8. UNBALANCED AUDIO OUTPUT JACK: 1/4"phone jack. Can
be connected to an unbalanced aux-level input of a mixer,
guitar amp or tape recorder.
9. AF LEVEL (VOLUME) CONTROL: Adjusts audio output level
of both AF Output jacks; maximum output is fully clockwise.
12
1
1
Figure C-Re r P nel Controls nd Functions
10
9
8
10. BALANCED AUDIO OUTPUT JACK: XLRM-type connector.
A standard 2-conductor shielded cable can be used to
connect the receiver output to a balanced microphone-level
input on a mixer or integrated amplifier.
11. CORD OOK: Loop the cord around the cord hook to keep
the DC plug from pulling out accidentally.
12. POWER INPUT JACK: Connect the DC plug from the included
in-line AC adapter.
Transmitter Setup, Controls and Functions
Figure D-UniP k Tr nsmitter
Handheld Transmitter Battery Installation
4. Unscrew the lower body cover, slide it downward, and
remove it to expose the battery compartment.
5. Observe correct polarity as marked inside the battery
compartment and carefully insert two fresh 1.5V AA alkaline
batteries. Insert the first battery and slide it toward the
spring contact. Then insert the second battery into the
space remaining. Make certain the batteries are fully seated
in the battery compartment. (Fig. E)
6. Slide the lower body cover back on and screw the housing
together. Do not overtighten.
Note: Remove batteries from the handheld transmitter starting
at the bottom end, where finger indents in the battery housing
are provided for easy grip.
Figure E-H ndheld Tr nsmitter B ttery Comp rtment
Screwdr ver
Transm tter
Door Catch
Battery
Compartment
Transm tter
Door
Battery
Compartment
RF Power
Select
Sw tch
Screwdr ver
Transm tter
Door
(Open
Pos ton)
Channel
Selector
Sw tch
B ttery Selection
Two 1.5V AA alkaline batteries are recommended.
UniPak
Transmitter Battery Installation
1. Open the transmitter door by first pulling the catch down
and then sliding the door upward (Fig. D).
2. Observe correct polarity as marked and carefully insert two
fresh 1.5V AA alkaline batteries (Fig. D).
3. Slide the door closed, making certain it clicks securely in
place.

5
T
ransmitter Setup, Controls And Functions
Figure F-UniP k
®
Tr nsmitter Top View
Figure G-H ndheld
Tr nsmitter Bottom
View
Input Connector
Power Sw tch
Power/Mute/
Battery Ind cator
Antenna
Power Sw tch
Power/Mute/B ttery Indic tor
After the battery is installed, press and hold the power button
until the battery indicator LED turns green (Fig. F & G). (It will
turn red first; keep holding until it turns green). If the battery
indicator LED does not light up when the power button is
pressed, the batteries are installed incorrectly or they are dead.
The LED will flash to indicate low-battery condition.
Mute Function
With the transmitter on, a slight touch of the Power/Mute
button will toggle between muted and unmuted operation.
Red LED indicates muted operation. Green LED indicates
unmuted operation.
UniP k
®
Tr nsmitter Input Connection
Connect an audio input device (microphone or guitar cable) to
the audio input connector on the top of the transmitter. A
number of Audio-Technica professional microphones and cables
are available separately, pre-terminated with a UniPak
®
input
connector (see www.audio-technica.com.)
UniP k
®
Tr nsmitter Antenn
The UniPak
®
transmitter includes a permanently-attached
flexible antenna. For best results, allow the antenna to hang
freely and full length from 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.
System Operation
Plug in the receiver.
Receiver On…
The LED display will light up. If either A or B diversity indicators
lights up at this point (without transmitter on) there may be
interference in the area. If this occurs, change the operating
channel.
How to M ke Oper ting Ch nnel Ch nges
Operating channel changes (frequency changes) may be made in
two ways: manually and automatically.
To change channel manually
Press the Select button repeatedly until desired channel is
reached. Press and hold the Set/Scan button to manually set the
receiver to indicated channel. Channel number will stop
flashing. (A brief touch of the Set/Scan button will revert to
previously set channel). If the Set button is not pressed within
10 seconds to confirm the selection, the system will revert to its
original channel.
To change channel automatically
Press and hold the Set/Scan button for about two seconds. The
current channel will flash three times quickly; then the system
will begin to scan for the next open channel. When it finds an
open channel, it will flash the open channel three times and
then set the channel. (If an open channel is not found, the
automatic scan will return to the original channel and flash 5
times.)
Tr nsmitter On…
Before turning on the transmitter, use the provided screwdriver
to set the transmitter channel selector switches (Fig. D on page
4 and Fig. on page 6) to the same number that is displayed
on the receiver. Select channels 1-8 (channels 9 and 0 are for
service use). The transmitter may be either on or off when
changing channels (frequencies). When changing channels with
the transmitter on and unmuted, the LED will turn red as the
adjustment is being made; it will turn green when the channel
is set. (When changing channels with the transmitter on and
muted, the LED will remain red during and after channel
adjustment, as long as the transmitter is muted; when the
transmitter is unmuted, the LED will turn green.)
The transmitters have a soft-touch Power Switch. When the
transmitter is “on,” the transmitter produces both RF and audio.
When the transmitter is switched on and in normal operation,
the receiver's diversity indicators will display which antenna is
active.
Setting Levels
Correct adjustment of transmitter audio input, receiver audio
output, and mixer/amplifier input and output levels is important
for optimum system performance.
ATW-T702 Handheld Transmitter
The 700 Series handheld transmitter trim (volume) control
(Fig. on page 6) has factory pre-set audio input levels. Factory
setting is full clockwise, maximum gain.
Set the receiver's AF Level control to its full clockwise position
(maximum). (Fig. C on page 4).
While speaking/singing into the microphone at typically loud
levels, check the AF peak indicator on the receiver. If the AF
peak indicator is easily illuminated and distortion is heard
through the system, it may be necessary to adjust the transmitter
audio input level.
To adjust the transmitter audio input level, unscrew the lower
body cover and slide it downwards, exposing the screwdriver
and trim control (Fig. on page 6). Remove the screwdriver and
gently turn the trim control counterclockwise until the AF peak
indicator is illuminated only on audio peaks.
Return the screwdriver to its clip and close and secure the lower
body. No further transmitter gain adjustments should
be needed, as long as the acoustic input does not change
significantly.
Power/Mute/
Battery Ind cator

Setting Levels (Continued)
ATW-T702 Handheld Transmitter
CAUTION! The small trimmer controls are delicate; use only
the supplied screwdriver. Do not force the trimmers beyond
their normal 180° range of rotation.
Return the screwdriver to its storage clip when not in use.
ATW-T701 UniPak
Transmitter
Trim controls in the UniPak transmitter (Fig. I) will enable you to
use microphones or instruments with different output levels.
1. For MIC: Set MIC (microphone trim) control fully clockwise
(maximum) and INST (instrument trim) control fully counter
clockwise (low).
For INSTRUMENT: Set INST (instrument trim) control fully
clockwise (maximum) and MIC (microphone trim) control
fully counterclockwise (low).
2. Set the receiver's AF Level control to its full clockwise
position (maximum). (Fig. C on page 4).
3. Plug the mic or instrument into the transmitter and power
up the system.
4. For MIC: Make an initial adjustment of the mixer's level
controls that will allow audio through the system.
For INSTRUMENT: Make an initial adjustment of the
instrument amplifier input level control that will allow audio
through the system.
5. For MIC: While speaking/singing into the microphone at
typically loud levels, check the AF peak indicator on the
receiver. If AF peak indicator is easily illuminated and
distortion is heard through the system, it may be necessary
to adjust the transmitter audio input level. To adjust the
transmitter audio input level, gently turn the microphone
trim control counterclockwise until the AF peak indicator is
illuminated only on audio peaks.
For INSTRUMENT: While playing the instrument at typically
loud levels, check the AF peak indicator on the receiver. If
AF peak indicator is easily illuminated and distortion is heard
through the system, it may be necessary to adjust the
transmitter audio input level. To adjust the transmitter audio
input level, gently turn the instrument trim control
counterclockwise until the AF peak indicator is illuminated
only on audio peaks.
6
Figure H-H ndheld Tr nsmitter Interior View
System Operation (Continued)
6. For MIC: While again speaking/singing into the microphone
at typically loud levels, adjust the mixer's input trim control
so the highest sound pressure level going into the
microphone causes no input overload in the mixer, and yet
permits the mixer's channel and output level controls to
operate in their “normal” range (not set too high or too low).
For INSTRUMENT: While again playing the instrument at
typically loud levels, adjust the receiver's AF Level control
so the highest signal level causes no input overload in the
instrument amplifier and yet permits the amplifier's input
level controls to operate in their “normal” range (not set too
high or too low).
Note: If the mixer cannot be adjusted to operate in its normal
range without distortion, adjust the receiver's AF Level Control
(turn counterclockwise) until the mixer/amplifier is no longer
overloaded.
Note: RF power may be set to high or low via the RF power
select switch on the side of the UniPak transmitter. (Fig. I.)
While the high setting normally provides maximum operating
range, the low setting will help extend battery life. The low
setting may also be preferred in multi-channel systems, or when
operating very close to the receiver, to reduce the
possibility of interference or overload.
RF Interference
Please note that wireless frequencies are shared with other
radio services. According to Federal Communications
Commission regulations, “Wireless microphone operations are
unprotected from interference from other licensed operations in
the band. If any interference is received by any Government or
non Government operation, the wireless microphone must
cease operation...” If you need assistance with operation or
frequency selection, please contact your dealer or
Audio-Technica. Extensive wireless information is also available
on the Audio-Technica Web site at www.audio-technica.com.
Channel
Selector
Sw tch
Tr m Control (Volume)
Figure I-UniP k
®
Tr nsmitter Side Views
Instrument Tr m
Control (Volume)
Screwdr ver
RF Power
Select
Sw tch
M crophone Tr m
Control (Volume)
Transm tter
Door Catch

7
OVERALL SYSTEM
U F Operating Frequency 542.125 M z to 561.250 M z
Number of Channels 8
Frequency Stability ±0.005%, Phase Lock Loop Frequency
control
Modulation Mode FM
Maximum Deviation ±25 k z
Operating Range 200' typical
Operating Temperature Range 40º F (4ºC) to 110º F (43º C)
Frequency Response 100 z to 12 k z
RECEIVER
Receiving System Antenna Switching Diversity
Image Rejection 55 dB minimum
Signal-to-noise Ratio >80 dB at 10 k z deviation (IEC
weighted), maximum deviation 25 k z
Total armonic Distortion ≤1% (10 k z deviation @ 1 k z)
Sensitivity 25 dBµV (S/N 60 dB at 10 k z deviation,
IEC-weighted)
Audio Output
Unbalanced 211 mV (-13.5 dBV) (1 k z modulation,
10 k z deviation)
Balanced 150 mV (-16.5 dBV) (1 k z modulation,
10 k z deviation)
Output Connectors
Unbalanced 1/4" TS (“mono”) phone jack
Balanced XLRM-type
Power Supply 100-240 VAC (50/60 z) to 12V DC 1A
(center positive) switched mode, external
power supply
Dimensions 7.48" (190.0 mm) W x 1.65" (42.0 mm)
x 5.12" (130.0 mm) D
Net Weight 12.9 oz (365 g)
Accessory Included Power supply
Specifications†
UNIPAK®TRANSMITTER
RF Power Output igh: 10 mW; Low: 5 mW
Spurious Emissions Under Federal Regulations
Dynamic Range >100 dB, A-weighted
Input Connections igh impedance, Low impedance, Bias
Batteries (not included) Two 1.5V AA Alkaline
Current Consumption igh: 140 mA; Low: 130 mA, typical
Battery Life Approximately 8 hours ( igh); 10 hours
(Low), depending on battery type and use
pattern
Dimensions 2.56" (65.0 mm) W x 4.13" (105.0 mm)
x0.73” (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.
700 Series Frequency Ch nnel Pl n
Ch nnel Frequency - MHz TV Ch nnel
1542.125 26
2545.750
3 551.500 27
4 552.000
5 557.875 28
6 559.375
7560.500 29
8561.250
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

1. Use only fresh alkaline batteries. Do not use “general
purpose” (carbon-zinc) batteries.
2. Position the receiver so that it has the fewest possible
obstructions between it and the normal location of the
transmitter. Line-of-sight is best.
3. The transmitter and the receiver must be set to the same
frequency. Set or change transmitter frequency only
when its power is turned off.
4. The transmitter and the receiver should be as close
together as conveniently possible, but no less than six
feet (2 m.).
5. Yellow LED indicates the channel is set to service position
(0 or 9); please select a valid operating channel (1-8).
6. The receiver antennas should be kept away from any
metal.
7. A receiver cannot receive signals from two transmitters
at the same time.
8. If the AF Level control of the receiver is set too high, it
may over-drive the input of the mixer or clip the output of
the receiver, causing distortion. Conversely, if the receiver
output is set too low, the overall signal-to-noise ratio of
the system may be reduced. Adjust the output level of
the receiver so the highest sound pressure level going
into the microphone (or the loudest instrument playing
level) causes no input overload in the mixer, and yet
permits the mixer 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. In the UniPak
®
transmitter, the “Mic” or “Inst” input
control not in use should be set to minimum.
10. Turn the transmitter off when not in use. Remove the
battery if the transmitter is not to be used for a period of
time. Unplug the receiver from the AC outlet when the
system is not in use.
Ten T ips to Obt in the Best Results
For future reference, please record your system information here (the serial numbers appear inside the battery
compartment of each transmitter, and on the bottom of each receiver):
Receiver ATW-R700 S/N
UniP k
®
Body-P ck ATW-T701 S/N
Tr nsmitter
H ndheld Dyn mic ATW-T702 S/N
Microphone Tr nsmitter
Audio-Technic U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224 330/686-2600 www.audio-technica.com
P51836-02 ©2011 Audio-Technica U.S., Inc. Printed in U.S.A.