Audio Technica T702 HANDHELD TRANSMITTER User Manual 700 Series Professional

Audio-Technica Corporation HANDHELD TRANSMITTER 700 Series Professional

Contents

USERS MANUAL 1

700 Series Owners Manual
V. 1 5-25-06
Page 1 of 12
[Cover]
700 Series Professional
UHF Wireless Systems
ATW-701 UniPak™ Transmitter System
ATW-701G Guitar System
ATW-701H Headworn Microphone System
ATW-701L Lavalier Microphone System
ATW-702 Handheld Dynamic Microphone System
Installation and Operation
[inside]
Professional UHF Wireless Systems
Installation and 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 subject 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.
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 compliance with federal regulations. Do not attempt to
open the receiver or transmitter. To do so will void the warranty, and may cause
improper operation.
Notice to individuals 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. However, 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.
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Introduction
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
UHF frequencies in the 542-561 MHz 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.
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 Hi-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 cardioid 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 multicolor
Battery/Power indicator with low-battery indication.
700 Series receivers features 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.
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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 UHF 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 __
Receiver Installation
Location
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 Fig. 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 (12.5 mV) and
unbalanced (25 mV). 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. 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
Extend the permanently attached UHF 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.
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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 Hz AC power outlet.
Receiver Controls and Functions
Front Panel Controls and Functions (Fig. B)
1. ANTENNAS: Position the antennas as shown in Figure B. 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.
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: Touch Set/Scan button once to enable operation
(Channel number will flash). Touch the Select button to manually select
desired channel. The selected number will flash on and off. Press and
hold Set/Scan button to set the channel (operating frequency). If the
set/scan button is not pressed within 10 seconds to confirm the selection,
then the system will revert back to its original channel.
6. SET/SCAN BUTTON:
Two distinct operations are associated with this button:
Touch: A momentary press of the Set/Scan button.
Hold: A press and hold (about two seconds) of the Set/Scan button.
The Set/Scan button can be used in two ways: Manual Set Mode, to
permit selection of an operating channel; and Automatic Scan/Set Mode,
to initiate the automatic channel scan and selection, as follows:
Manual Set Mode: After using the Select button to arrive at desired
channel, hold the Set/Scan button to set the channel. NOTE: Before the
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channel has been set, a touch of the Set/Scan button will revert the
channel to its previous setting.
Automatic Set Mode: Hold the Set/Scan button. The Automatic Scan/Set
Mode will automatically scan for and set the next open channel.
Rear Panel Controls and Functions (Fig. C)
8. AF LEVEL CONTROL: Adjusts audio output level of both AF Output jacks;
maximum output is fully clockwise.
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 microphone-level input on a mixer or integrated amplifier.
10. 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.
11. POWER INPUT JACK: Connect the DC plug from the included in-line AC
adapter.
12. CORD HOOK: Loop the cord around the cord hook to keep the DC plug from
pulling out accidentally.
Transmitter Controls and Functions
Battery Selection
Two 1.5V AA alkaline batteries are recommended.
UniPak™ Transmitter Battery Installation
1. Slide the transmitter door open by first pulling the catch down. (Fig. D)
2. Observe correct polarity as marked and carefully insert two fresh 1.5V AA
alkaline batteries (Figure D).
3. Slide the door closed, making certain it clicks securely in
Figure D—UniPak™ Transmitter Open
[Note: After Channel Selector Switch use the following copy:
Select channels 1-8; channels 9 and 0 are for service adjustment.]
Handheld Transmitter Battery Installation
4. Unscrew the lower body cover, slide it downward, and remove it to expose
the battery compartment. (Fig. D)
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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 down. 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 and up body, the 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—Handheld Transmitter Battery Compartment
Battery Indicator
After the battery is installed, press and hold the power button until the battery
indicator LED turns green. (It will turn red first; keep holding until it turns green).
If the battery indicator LED does not turn green, the batteries are installed
incorrectly or they are dead
Figure F—UniPak Transmitter Top View
Figure G—Handheld Transmitter Bottom View
UniPak Transmitter 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 “Optional System Accessories” on page
[NEED PAGE NUMBER]).
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.
System Operation
Plug in receiver.
Receiver On…
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The LCD 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 channels (select another frequency).
How to Make Operating Channel Changes on Receiver
Operating channel changes (frequency changes) may be made in two ways:
manually and automatically.
To change the channel manually:
1. Touch Set/Scan button once to enable operation of Select button
(Channel number will flash). Touch the Select button to manually
select desired channel. The selected number will flash on and off.
2. Hold Set/Scan button to set the channel (operating frequency). If the
Set/Scan button is not pressed within 10 seconds to confirm the
selection, then the system will revert back to its original channel.
To change the channel automatically:
1 Hold the Set/Scan button for about 2 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 stop when it returns to the
original channel.)
Transmitter On…
Before turning on the transmitter, use the provided screwdriver to set the
transmitter channel selector switches (Fig….) to the same number that is
displayed on the receiver. (Select channels 1-8; channels 9 and 0 are for service
adjustment.) Always turn the transmitter off when changing channels
(frequencies).
The transmitters have a soft-touch button. 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 Transmitters
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The 700 Series handheld transmitter has factory pre-set audio input levels.
Factory setting is full clockwise, maximum gain.
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 gain trimmer (Fig. H). Remove
the screwdriver and gently turn the gain trimmer 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.
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.
Figure H—Handheld Transmitter Interior View
ATW-T701 UniPak Transmitter
Trimmer adjustments in the UniPak transmitter (Fig. I) will enable you to use
microphones or instruments with different output levels.
1. For MIC: Set microphone level trim control fully clockwise (maximum) and
instrument level trim control fully counterclockwise (minimum).
For INSTRUMENT: Set GT (guitar trim) control fully clockwise (maximum)
and MT (microphone trim) control fully counterclockwise (minimum).
2. Set the receiver’s AF Level control to its full clockwise position
(maximum). See Figure C on page .
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.
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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 level 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 level trim control
counterclockwise until the AF peak indicator is illuminated only on audio
peaks.
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.
Figure I—UniPak Transmitter Open
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 also is available on the
Audio-Technica Web site at www.audio-technica.com.
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Specifications
Optional System Accessories
WIRELESS ESSENTIALS MICROPHONES AND CABLES
AT829cW Miniature cardioid condenser lavalier microphone. Includes
clothing clip and windscreen.
MT830cW Miniature omnidirectional condenser lavalier microphone. Includes
clothing clip and windscreen.
MT830cW-TH “Theater” model, same as MT830cW except beige color mic
and cable for concealment.
AT831cW Miniature cardioid condenser lavalier microphone. Includes
clothing clip and windscreen.
AT889cW Headworn noise-canceling condenser microphone. Includes
windscreen and cable clip.
AT898cW Subminiature cardioid condenser lavalier microphone. Includes
clothing clip base, viper clip base, magnet clip base, three single
mic holders, two double mic holders and two windscreens.
AT899cW Subminiature omnidirectional condenser lavalier microphone.
Includes AT899AK accessory kit.
AT899cW-TH “Theater” model, same as AT899cW except beige color mic
and cable concealment. Includes AT899AK-TH accessory
kit.
ATM35cW Cardioid condenser instrument microphone. Includes AT8418 clip-
on instrument mount.
ATM73cW Headworn cardioid condenser microphone. Includes windscreen.
ATM75cW Headworn cardioid condenser microphone. Includes windscreen.
PRO8HEcW Headworn hypercardioid dynamic microphone. Includes
windscreen and cable clip.
PRO35xcW Cardioid condenser instrument microphone. Includes AT8418 clip-
on instrument mount.
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.
RECEIVER ACCESSORIES
RF Cables Low-loss design, 50 ohm impedance, with BNC-to-BNC
connectors:
AC12 RG58-type cable (12')
AC25 RG8-type cable (25')
AC50 RG8-type cable (50')
AC100 RG8-type cable (100')
TRANSMITTER ACCESSORIES
AT8114 Foam windscreen for handheld transmitter.
AT8141 Water-resistant pouch for UniPak transmitter.
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AT8456a Quiet-Flex™ stand clamp for handheld transmitter, 5/8"-27 threads.
700 Series UHF Operating Frequencies
Each transmitter/receiver system operates on a choice of eight switch-selected frequencies.
Available frequ4encies are shown in the chart below. All frequencies may be combined for up to
8 simultaneous operating channels.
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
Tips To Obtain the Best Results
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. Do not place the receiver antennas within 3’ (1 m) of another receiver or
antenna.
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 9operate 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 “MT” or “GT” 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.
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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
Serial Number__________________________
UniPak™ Body-Pak Transmitter ATW-T701
Serial Number__________________________
Handheld Dynamic Microphone/Transmitter ATW-T702
Serial Number__________________________
One-Year Limited Warranty
Audio-Technica professional wireless systems purchased in the U.S.A. are
warranted for one year from date of purchase by Audio-Technica U.S., Inc.
(A.T.U.S.) to be free of defects in materials and workmanship. In event of such
defect, product will be repaired promptly without charge or, at our option,
replaced with a new product of equal or superior value if delivered to A.T.U.S. or
an Authorized Service Center, prepaid, together with the sales slip or other proof
of purchase date. Prior approval from A.T.U.S. is required for return. This
warranty excludes defects due to normal wear, abuse, shipping damage, or
failure to use product in accordance with the instructions. This warranty is void in
the event of unauthorized repair or modification, or removal or defacing of the
product labeling.
For return approval and shipping information, contact the Service Dept.,
Audio-Technica U.S., Inc., 1221 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., please contact your local dealer for warranty details.
Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224 330/686-
2600 www.audio-technica.com
©2006 Audio-Technica U.S., Inc. Printed in ?

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