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FREEWAY ATW-251 Installation And Operation Manual

200 series vhf wireless system
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ATW-251
UniPak™ System
ATW-251/G Guitar System
ATW-251/H Headworn Microphone System
ATW-251/L Lavalier Microphone System
ATW-252
Handheld Microphone System
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.
200 Series Owners Manual v.1
Page 1 of 9
7-6-06

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Summary of Contents for FREEWAY ATW-251

  • Page 1 Page 1 of 9 ATW-251 UniPak™ System ATW-251/G Guitar System ATW-251/H Headworn Microphone System ATW-251/L Lavalier Microphone System ATW-252 Handheld Microphone System This device complies with part 15 of the FCC Rules. Operation is subject to the condition that this device does not cause harmful interference.
  • Page 2 8HEcW headworn microphone (/H), or a lavalier mic (/L) for particular applications. All A-T Wireless Essentials™ microphones and cables, available separately, are pre-terminated for use with any ATW-251 system. Because 200 Series packaging is designed to hold all versions of the system, some compartments in the carton are intentionally left empty.

  • Page 3: Receiver Controls And Functions

    200 Series Owners Manual v.1 7-6-06 Page 3 of 9 phone plug to connect the receiver’s AF Out jack to the mixer/amplifier’s aux- level input. Power Connection Connect the DC plug on the included AC power adapter to the DC power input on the back of the receiver.
  • Page 4 200 Series Owners Manual v.1 7-6-06 Page 4 of 9 7. AUDIO OUTPUT JACK: 1/4" TS (Tip-Sleeve) or “mono” phone jack. Use a shielded cable to connect to an unbalanced aux-level input of a mixer or amplifier. 8. CORD HOOK: Loop the cord around the cord hook to keep the DC plug from pulling out accidentally.

  • Page 5: System Operation

    200 Series Owners Manual v.1 7-6-06 Page 5 of 9 increases battery life by reducing power. (Note: Effective range decreases when the switch is set in Low position.) UniPak™ Transmitter Input Connection Connect an audio input device (microphone or guitar cable) to the input connector on the bottom of the transmitter.
  • Page 6 200 Series Owners Manual v.1 7-6-06 Page 6 of 9 Input trimmer controls in the transmitters enable you to maximize performance for a particular microphone or guitar sensitivity, or to adjust for different acoustic input levels. Adjusting Input Level - UniPak Transmitter Slide the battery cover off the top part of transmitter and remove the screwdriver from its clip (Fig.
  • Page 7 200 Series Owners Manual v.1 7-6-06 Page 7 of 9 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.

  • Page 8: Specifications

    200 Series Owners Manual v.1 7-6-06 Page 8 of 9 Extensive wireless information also is available on the A-T Web site at www.audio-technica.com. Application Freq. Code Freq. (MHz) • Traveling frequencies: 169.505 (Normally work anywhere in the U.S.A. and T3 170.245 Canada.) 171.905...
  • Page 9 200 Series Owners Manual v.1 7-6-06 Page 9 of 9 AT8390 Shielded audio cable with 1/4" to 1/4" phone plugs. Available in a variety of lengths. (Also available with one straight and one 90° phone plug as the AT8316.) AT8456a Stand clamp for handheld transmitter, 5/8"-27 threads.

This manual is also suitable for:

Atw-251/hAtw-251/gAtw-251/lAtw-252