Audio Technica ATWR220 Users manual
220 Series Professional
VHF Wireless Systems
ATW-221
UniPak™System
ATW-222
Handheld Microphone System
Installation and Operation
Professional VHF 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 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.
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.
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 wireless microphone system is
the successful result of years of design and manufacturing
experience.
This professional wireless system includes a receiver and either
a body-pack or a handheld transmitter on a specific
crystal-controlled frequency.
The receiver features true diversity reception. Two antennas
feed two completely independent RF sections on the same
frequency; automatic logic circuitry continuously compares and
selects the superior received signal, providing better sound
quality and reducing the possibility of interference and dropouts.
The receiver is half-width for a standard 19" (1U) rack mount.
Please note that in multiple-system applications there must be
a transmitter-receiver combination on a
separate
frequency for
each input desired (only one transmitter for each receiver).
Operating frequency information will be found on page 6.
The versatile ATW-T201 UniPak body-pack transmitter has both
a high-impedance input for instruments, and a low-impedance
input with bias connection for use with dynamic and electret
condenser microphones. The ATW-T202 handheld transmitter
features a unidirectional dynamic microphone element.
Both the body-pack and handheld transmitters use internal
9-volt batteries and have Off/Standby/On switches, input Trim
(level) adjustments and battery-save switches.
Introduction
See pages 8-9 for illustrations.
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.
Receiver Installation
3
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 well 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 Connection
There are two audio outputs on the back of the receiver:
balanced (160 mV) and unbalanced (280 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 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 of the receiver 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.
Front Panel Controls and Functions (Fig. A)
1. POWER SWITCH: Press power switch in to turn on
2. POWER INDICATOR: Lights when power is supplied
to the receiver.
3. TUNER OPERATION INDICATOR: Indicates which tuner
has the better reception and is in operation.
4. AF PEAK INDICATOR: Only lights when audio distortion
is present at maximum modulation. Not affected by
position of AF Level Control.
5. TUNER OPERATION INDICATOR: Indicates which tuner
has the better reception and is in operation.
6. AF LEVEL CONTROL: Adjusts the level at both audio
output jacks.
Power Connection
Connect the included [need number] adapter to the DC power
input on the back of the receiver. Then plug the adapter into a
standard 120 volt 60 Hz AC power outlet.
Antennas
Attach the antennas to the antenna input jacks.
Receiver Controls and Functions
Rear Panel Controls and Functions (Fig. B)
7. ANTENNA INPUT JACK: BNC-type antenna connector for
Tuner “A.” Attach the antenna directly, or extend it with a
low-loss antenna cable.
8. SQUELCH CONTROL: Adjusts level of noise-muting circuit
(Preset at factory but can be adjusted as circumstances
warrant.)
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 aux-level input
on a mixer.
10. GROUND LIFT SWITCH: Disconnects the ground pin of the
balanced output (9) from ground. Normally, the switch
should be to the left (ground connected). If hum caused by
a ground loop occurs, slide switch to the right.
11. UNBALANCED AUDIO OUTPUT JACK:
1
/4" phone jack.
Can be connected to an unbalanced aux-level input of a
mixer or tape recorder.
12. DC POWER INPUT: For the provided [NEED NUMBER]
adapter, or other 12-18V DC source.
(Receiver requires 500 mA.) [CORRECT?]
13. ANTENNA INPUT JACK: BNC-type antenna connector for
Tuner “B.” Attach the antenna directly, or extend it with
a low-loss antenna cable.
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