Audio Technica ATW-901a/G Owner's manual

@audio-technica 0
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RF ~ PEAK
System 9
VHF Wireless System
Installation an d Operation
ATW-901a/G
Gu itarSystem
ATW-901a/H
Headworn Microphone System
ATW-901a/L
Lavalier Microphone System
ATW-902a
Handheld Microphone System
@audio-technica

2
System 9 Installation and Operation
This device complies with part 15 of the FCC Rules. Operation is subject
to the condition thatthis device does not cause harmful interference.
A copy
of the declaration of conformity can be found on the internet at
www.audio-technica.com.
This device complies
with IndustryCanada license-exemptRSS
standard(s)..Operation is subject
to the following two c,onditions: (1 l
this device may not cause interference, and (2) this device must accept
any interference, including interference that may cause undesired
operation
of the device.
Le presentappareil est conforme aux CNRd'lndustrie Canada
applicables auxappareils radio exernptsdelicence.••L'exploitation
est
autorisee auxdeux conditions s\}ivahtes : (l l I' appareilhe do it pas
produire
de brouillage, ed2ll'1Jtilisateur de .. l'appareH doifaccepter tout
bro~;~iiiE@3 • ' t!idiQelectriquesubi, ' m~me • si le ()rouillage·•est·susceptible
d'en ,g:>fl1prornettre· li!} ..fo'nctionhernent.
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CAUTION! Electrical shocl:: can result from removal of the receiver
· Gbvei. Refer servipingto qualified servicepersonnel. No user-
~~t:\ijce~lili • lf<!J~s ~ jn~ide.Po nc>t expose to rain or moisture.
- .. ·:: , ,' ," :: .. ' .. ·· : .· . ''' .
Th~ eire;" e tti~ reeeilJ~r and tnmsmitter hav~ beeri precisely
adjusted
optimum perlol'rnal'lc~ and compliance with tedera.l .... .
regulations,•
Do riotattef'nptto . QPen the .r'eceiver. or transrni tter _ J(l do so
willvo~ 'Ule warranty. and may cause improper operation. ..
Noti~~· . to • illciilli4ualll Wifh ·. im,plinted cardiac. pat:emakfns or,lf!Cp .··
devlcSs: · .··· . ·· · ·· . · .• .. • ,,,, .• .• :,. ·.'
Arw source of RF (radio frequency).energy mayinterfere •vyith normal
functioning of the implanteddevice. All wirelessmicrophones: h~ve •
low-power transmitters (less
than Q.OEiwatts output ] Whith · ·· li~IY
to cause cMficulty, especially if theyate !it)E!asta · .. ..
However, since a "body-pacl::"•
mic transmittertypically is • pl~c~d ! ~gairist
the. body,we suggest·attachil'1g it . at thebelt, rather .ti'lal'l.ina shirt
pockefVo~here it may be immed · ·· e!Y ad)~.nHo . i thep:ie¢llcal device.
Note ~17otpatany medicai-d... .. ·· .. · i;lisruptrori vYiH p~as¢\t\!hen . ihe RP
transmitting source is turned of t Pleasec()otactyourphvsician or ·
medical-deviceproviqer.
if •you ha¥e · a,Y f ql.j~tiqns •• or ': experienc.e•.any
prOblems : With : the ' .useofthis • oraf'lv • !lt~I'RF . equipment. ·
Thank you for choosing
an Audio-Technica professional wir eless
system.
You have joined thousands of other satisfied customers who
have chosen our products because
of their quality, performance and
reliability. This wireless microphone system is the successful result
of
years of design and manufacturing experienc e.
Audio-Technica's Sys tem 9 is a four-channel frequency-agile wireless
system designed
to provide rock-solid performance along with
easy setup and clear, natural sound quality. Fe aturing stackable,
contemporary styling, System 9
is available in handheld, headworn.
guit a r, lavalier and body-pack configurations. The sys tem offers four
compatible user-switchable channels in one
of four available VHF
frequencies (169.505, 170 245, 171.045, and
171 .905 MH z ).
Each System 9 professional VHF wireless system includes a receiver
and either a body-pack transmitter or a handheld microphone/transmitter.
A1W-
901a UniPak®body-p ac ktransmitter systems include models
pre
-pa c kag ed with either an A T- GCW guitar cable (JG). a PRO 8 HE cW
headworn microphone
(JH). or a lavalier mic (JL) for particular applications.
All A-TWireless Essentials®microphones and cables, available separately,
are pre-terminated for use with any
A1W-901 system.
Because System 9 packaging is designed
to hold all versions
of the system, some compartments in the carton may be intentionally
left empty.
The A1W-R900a receiver includes a switching power supply that
automatically adapts
to changes in mains voltage.
The versatile A1W-T901 a UniPak body-pack transmitter has both
a high-impedance input for instruments, and a low-impedance input
with bias co nn ection for use with dy namic and electret condenser
microphones.The A1W-T902a handheld transmitter features a
unidirectional dynamic microphone element.
Both
the body-pack and handheld transmitters use internal AA batteries
and have Power/Mute switches
and inputTrim (level) adjustments.
Receiver Installation
Location
For best operation the receiver should be at least 3' (1 m) above the
ground and at least 3'
(1 m) away from a wall or metal surface to
minimize reflections. Keep the receiver antennas away from noise
sources such
as digital equipment, motors, automobiles and neon
lights. as
wel l as away from large metal objects In multi-channel
systems, position receivers at least 3'
(1 m) apart and keep operating
transmitters at least 6'
(2 m) from the receivers to help assure
maximum
RF performance.
Output Connections
There are two audio outputs on the back panel: balanced and
unbalanced. 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
ca ble from the 1/4 unbalanced audio output on the back of t he receiver
housing
to the mixer. If the input of the mixer is an XLR -type input,
connect a c
ab le from the balanced XLR-type audio out put on the back
panel
to the mixer.
Power Connection
Connect the DC plug on the included AC power adapter to t he DC
power inp ut on the b ac k 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 accident al tug on the cord.Then plug the adapter into a standard
120Volt 60 Hz
AC pow er outlet.
(Note that the receiver has no power Off/On switch.The receiver will be
energized whenever the
power adapter is connected and plugged into
the
AC outlet. Unplug the power supply from the AC out l et when the
sys
tem is not in use - both for safe ty , and to conserve ener gy.)
Antennas
A novel "dipo le" antenna system on the receiver improves operation
by providing a
"ground" element in addition to the usual "signal"
element. Position the
two antenn as at 90 ° in the form of a "V;' or
position the left ("signal") antenna vertically and
the right ("ground")
antenna horizontally,
in the shape of an "L.:' (Fig. A) . Use the position
that performs better in your operating environment.
Be certain to
extend both antennas to the1r full 15 ' (38 em) length by holding them at
their bases and pulling o
ut on their caps. Both antenna elements may
be swiveled to the left and right, but
do not atte mpt to rotate them in a
screwing/unsc
re wing motion. To do so may damage the antenna and/or
receiver. For best performance, locate the receiver so
it s an tennas are
in direct line-of-sight
to the transmi tt er's likely operating position.

Receiver Controls and Functions
0--------
@audio-technica
FigureA -Front Panel Controls and Functions
1. ANTENNAS: Position the "signal" antenna (1a) and
"ground" antenna (1 b) as shown to the right and above right. Fully
extend both antennas by pulling on the endcaps.
2. RF INDICATOR: Lights to show presence of transmitter signal.
3. CHANNEL SELECT BUTION: Soft-touch button selects channel.
4. CHANNEL INDICATOR
LIGHTS Lights to show which channel is
selected. A channel indicator
LED will light wh en power is applied
to the receiver.
5. AF PEAK INDICATOR: Only lights when audio distortion
is present at maximum modulation. Not affected by
position
of Volume control.
Figure 8 - Rear Panel Controls and Functions
1. SQUELCH CONTROL: Adjusts level of noise-muting circuit
(preset at fac
tory but can be adjusted as circumstances warrant).
2. VOLUME CONTROL: Adjusts the audio level at the '/ 4 and XLRM
output jacks. Does
not affect AF Peak indicator.
3. UNBALANCED AUDIO OUTPUT JACK: 1/4
TS (Tip-Sleeve) or "mono"
phone ja ck. Use a shield ed ca ble to conne ct to an unbalanced
aux-level input
of a mixeror amplifier.
4. BALANCED AUDIO OUTPUT JACK: XLRM-type connector. A
standard 2-conduc
tor shielded cable can be used to connect the
receiver output to a balanced microphone-level input on a mixer or
integrated amplifier.
5. POW
ER INPUT JACK: Connect the DC plug from the
included
AC adapter.
6. CORD HOO
K: Loop the co rd around the co rd hook to keep
the
DC plug from pulling out accidentally.
3
System 9 Installation and Operation
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4
System 9 Installation and Operation
Transmitter Setup Controls and Functions
Battery Selection and Installation
Two alkaline AA batteries are recommended.When inserting the battery,
observe correct polarity as marked inside the battery compartment.
Figure C - Handheld Transmitter
HandheldTransmitter Battery Installation
1. While holding the upper part of the transmitter body just belowthe
ball-screen, unscrew the lower body cover
and slide it off to expose
the battery compartment (Fig.
C).
2. Carefully insert two fresh AA alkaline batteries, observing
polarity markings.
3. Screw the body back together. Do not overtighten.
HandheldTransmitter Battery Condition Indicator
After the batteries are installed, press and ho ld the Power/Mute switch
on the bottom
of the handheld transmitter until the indicator LED turns
green.
If the indicator LED does not light up when the Po wer/Mute
sw itch is pressed. the batteries are installed incorrectly or they are
dead.
The indicator LED witt flash to show tow-battery condition.
HandheldTransmitter Channel Selection
Before turning on th e transmitter, use DIP Switches 1 and 2, located
inside the HandheldTransmitter, to select the desired channel.
1. To access the DIP Switches, hold the upp er part of the transmitter
body just belowthe
batt -screen, and unscr ew the lower body cover
and slide it off.
2. To achieve the desired channel, use th e provided screwdriver to
change the DIP switch configurations as follows:
Channel
1: Switches 1 and 2 "up"
Channel2: Switch 1 "up"; Swit ch 2 "down"
Channe l3 : Switch 1 "down"; Switch 2 "up"
Channel4: Switches 1 and 2 "down"
3. Screw the body back together. Do not overtighte n.
Channel Se lection //
DIP Switches /
I /
/
Channel Configuration
Label
/
/
/
/
/
Switch Configuration for Channel Selection
/
/
/
------
---
Gain Trimmer
Battery
Compartment Screwdriver
Indic ato r LED
(Powe
r/Mut e/Battery)
Power/Mute Switch
HandheldTransmitter Mute Function
With the transmitter on, a slight touch of the power swi t ch will toggle
between m
ut ed and unmuted operation. Red indicator LED shows
muted operation. Green indicator
LED s how s unmuted operation.

UniPak<llTransmitter Battery Installation
1. Slide off the battery cover as shown in Figure D.
2. Carefully insert two fresh AA alkaline batteries, observing polarity
markings.
3. Replace the battery cover (Fig. D).
UniPak<llTransmitter Power/Mute/Battery Indicator
After the battery is installed, press and hold the power button until the
indicator
LED turns green (Fig. E). If the indicator LED does not light up
when the power button
is pressed, the batteries are installed incorrectly
or they
are dead.The indicator LED will flash to show low-battery
condition.
UniPak<llTransmitter Channel Selection
Before turning on the transmitter, use DIP Switches 1 and 2, locat ed
inside the UniPak<llTransmitter, to select the desired channel.
1. To access the DIP Switches, slide off the battery cover.
2. To achieve the desired channel, use the provided screwdriver to
change the DIP switch configurations
as follows:
Channel
1: Switches 1 and 2 "up"
Channel 2: Switch 1 "up"; Sw itch 2 "down"
Channel 3: Switch 1 "down"; Switch 2 "up"
Channel 4: Switches 1 and 2 "down"
3. Replace the battery cover.
UniPak®Transmitter Mute Function
With the transmitter on, aslight touch of the Power/Mute button will
toggle between muted and unmuted operation.
Red indicator LED shows
muted operation. Green indicator
LED shows unmuted operation.
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 cab les are available
separately, pre-terminated with a UniPak®input connector (see
www.audio-technica.com).
UniPak <ll TransmitterAntenna
The UniPak®transmitter includes a permanently-attached flexible
antenna. For b
est result s, 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
in strument; or try repositioning the receiver. Do not attempt to
remove, replace or change the length of the transmitting antenna.
5
System 9 Installation and Operation
Figure D - UniPa~ Transmitter
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I Switch Config•retion for Channel Selection
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~- Channel Configuration Label
·······Microphone
Trimmer (MIC)
- - · Channel Selection DIP Switches
---------- --· Screwdriver
Figure E - UniPa~ Transmitter
Antenna
Power/Mute
Button
Indicator LED
(Power/Mute/Battery)
Input
Connector