Frequency-agile UHF UniPak
®
Body-pack Transmitter
ATW-T1801
Specifications
Features
• Rugged housing with a reversible clothing clip
• Recessed locking 4-pin microphone input connector
• Dual color LED “on”/mute indicator
• Dual RF power output selection to optimize battery life
• Digital Tone Lock™ to identify the wireless transmitter to the receiver
• Operates on 2 AA batteries
• Battery fuel gauge on LCD readout
• 996 frequencies (25 kHz steps) in either the 541.500–566.375 MHz or
655.500–680.375 MHz band
• Microphone or line input with DC bias voltage
• 24 dB audio input level adjustment
• Function menu displayed in an LCD window, controlled by internal
touch switches
• Power/mute lock provision as well as safety door to cover controls
Description
The 1800 Series frequency-agile true diversity UHF wireless systems
provide a new standard for audio and RF performance with user-friendly
features and flawless operation for camera-mount and special remote
applications. The systems provide the audio quality, range and reliability
necessary for the most demanding requirements of today’s video and
audio systems.
The ATW-T1801 UniPak
®
body-pack transmitter has both low and high
impedance inputs plus a 5V DC bias connection allowing it to be used
with condenser and dynamic microphones, as well as Hi-Z instrument
pickups. The locking 4-pin HRS-type audio input connector is recessed
to protect the connector from damage. Operating on two standard AA
batteries, the transmitter features high- and low-level RF output
settings. The low-level setting allows 2 additional hours of battery life
while retaining a strong RF signal link. Soft-touch controls provide
convenient access to a variety of functions including RF power, audio
input level, power/mute locks and frequency selection. The transmitter’s
backlit LCD display presents a great deal of setup and operating
information clearly and conveniently including battery fuel remaining,
mute, and operating frequency. A two-color LED, which can be seen from
the top or side of the transmitter, indicates power on and mute status.
A flashing “Lo-Batt” alert visually signals the battery is almost depleted.
Programmable power/mute locks limit the functioning of the transmitter’s
power/mute button as desired for particular users and applications. To
match the audio input level to the transmitter, a five-position audio input
gain setting selected through the function menu is provided.
The body-pack features a safety cover to protect the soft-touch controls
from being accidently activated and a recessed input connector to
increase the life of the microphone cable. Constructed of high impact
materials, the body-pack transmitter features a field replaceable whip
antenna and captive battery cover door.
Additionally, the frequency configuration used in the 1800 Series
components allows them to be interchangeable with the Audio-Technica
3000 Series components.
Architect’s and Engineer’s Specifications
The frequency-agile FM body-pack transmitter shall be part of a wireless
microphone system consisting of a receiver and the appropriate transmit-
ter. Operating in the UHF bands of either 541.500 – 566.375 MHz or
655.500–680.375 MHz the system shall be capable of operating on any
of 996 PLL-synthesized frequencies per band (adjustable in 25 kHz steps).
The frequency-agile FM wireless body-pack transmitter shall have
microphone and line level inputs. Connections shall be via a recessed
4-pin locking connector. It shall provide DC voltage to power microphones
requiring DC bias. The body-pack transmitter shall have a reversible clip
allowing for up or down cable entry. A dual color LED indicator shall
illuminate “green” when the transmitter is turned on and “red” when
the transmitter is muted. The transmitter shall have an audio input level
adjustment range of 24 dB. All adjustments shall be via soft-touch con-
trols and shall remain as set even if the transmitter loses power or the
batteries are removed. A sliding door shall cover the setup controls when
not in use. The transmitter shall operate on two AA batteries and contain
a Hi/Lo power selector. The transmitter shall be equipped with a backlit
LCD screen used to show operating frequency and programming status.
A battery fuel gauge shall be incorporated into the display to indicate
the status of the internal batteries. The transmitter housing shall be of
high-impact materials with a captive battery door. The transmitter antenna
shall be removable and field replaceable.
The wireless body-pack transmitter shall be an Audio-Technica
ATW-T1801 or equivalent.
Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224
Audio-Technica Limited, Old Lane, Leeds LS11 8AG England
©2010 Audio-Technica U.S., Inc. audio-technica.com
0001-0040-01
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.
1800 series
wireless systems
High: 30 mW; Low: 10 mW, nominal
Under federal regulations
>105 dB, A-weighted
High impedance, low impedance, bias
Two 1.5V AA alkaline (not included)
High: 180 mA; Low: 160 mA, typical
Approximately 6 hours (High); 8 hours (Low),
depending on battery type and use pattern
66.0 mm (2.60") W x 87.0 mm (3.43") H x
24.0 mm (0.94") D
80 g (2.8 oz) (without batteries)
RF power output
Spurious emissions
Dynamic range
Input connections
Batteries
Current consumption
Battery life
Dimensions
Net weight
