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200 Series Professional
VHF Wireless Systems
®
ATW-251 UniPak Transmitter System
ATW-251/G Guitar System
ATW-251/H Headworn Microphone System
ATW-251/H92 Headworn Microphone System
ATW-251/H92-TH Headworn Microphone System
ATW-251/L Lavalier Microphone System
ATW-252 Handheld Microphone System
Installation and Operation
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Professional VHF Wireless Systems Installation and Operation Introduction This device complies with part 15 of the FCC Rules. Operation is subject to the condition that this device does Thank you for choosing an Audio-Technica professional wireless not cause harmful interference. system. You have joined thousands of other satisfied customers who have chosen our products because of their quality, This device complies with INDUSTRY CANADA R.S.S. 210, performance and reliability. This wireless micr
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Receiver Installation Antennas Location A novel “dipole” antenna system on the receiver improves For best operation the receiver should be at least 3' (1 m) operation by providing a “ground” element in addition to the above the ground and at least 3' (1 m) away from a wall or usual “signal” element. Position the two antennas at 90° in the metal surface to minimize reflections. Keep the receiver form of a “V,” or position the left (“signal”) antenna vertically antennas away from noise sources suc
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Transmitter Setup ® Battery Selection and Installation UniPak Transmitter Input Connection An alkaline 9-volt battery is recommended. Make certain the Connect an audio input device (microphone or guitar cable) to transmitter power switch is Off before installing or changing the input connector on the bottom of the transmitter. The batteries. cable connector latches automatically when inserted into the transmitter jack. To unlatch and remove the connector, simply When inserting the battery, obser
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System Operation Turn down the receiver volume control and the mixer/amplifier • Guitar/Instrument: Adjusting input level level before starting up the wireless system. Do not switch on Gently turn only the “GT” (Guitar Trimmer) control all the way the transmitter yet. up (clockwise, toward “Hi”). Check for excessive gain by playing at typically loud levels while watching the receiver’s AF Receiver on... Peak indicator. If the AF Peak indicator does light, turn the GT Plug the power supply into a
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System Operating Frequencies Frequency Selection RF Interference Each transmitter/receiver system operates on a single factory Please note that wireless frequencies are shared with other aligned, crystal-controlled frequency. Available frequencies are radio services. According to Federal Communications shown in the chart below. Commission regulations, “Wireless microphone operations are unprotected from interference from other licensed operations Operating frequency is specified by a two charact
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† Specifications OVERALL SYSTEM ® Operating Frequency VHF high band, 169 MHz to 172 MHz UNIPAK TRANSMITTER Frequency Stability ±0.005% RF Power Output High: 10 mW; Low: 2 mW, typical Modulation Mode FM Spurious Emissions Under Federal Regulations Maximum Deviation ±15 kHz Dynamic Range ≥90 dB, A-weighted Operating Range 200' typical Input Connections High impedance, low impedance, bias Operating Temperature Range 40° F (4° C) to 110° F (43° C) Battery (not included) 9V (NEDA type 1604) alkaline
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Antennas Figure A (p. 3) Receiver Controls and Functions 1a 2 3 4 1b Figure B - Front panel controls and functions 5 6 7 8 Figure C - Rear panel controls and functions 8
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Transmitter Controls and Functions Microphone GuitarTrimmer Trimmer (MT) (GT) Battery-Save Switch Battery Polarity (under screwdriver clip) Diagram Figure D Figure E Battery Polarity Diagram Battery-Save Switch Figure F GainTrimmer Screwdriver Figure G Battery Condition Indicator Power Switch Battery Condition Off/Standby/On Indicator Input Antenna Connector Power Switch On/Standby/Off Figure H Figure I 9
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Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224 330/686-2600 www.audio-technica.com P51858-01 ©2011 Audio-Technica U.S., Inc. Printed in U.S.A.
