Audio-Technica ATW-A49 User Manual

Professional UHF Wireless Systems

ATW-A49 UHF Wideband LPDA Antennas, 440-900 MHz

Installation and Operation

CAUTION! For personal safety and reliable system operation, make certain that (1) the antennas are mounted clear of any physical contact with individuals, (2) any supporting structures used are stable, even if moved or bumped, and (3) the antennas are securely attached to the supporting structures.

In addition, to reduce the risk of electric shock, do not allow the antennas or their supporting structures to come in contact with any exposed wiring or other sources of electricity.

Introduction

Audio-Technica ATW-A49 UHF wideband LPDA (Log Periodic Dipole Array) antennas provide enhanced signal pickup for UHF wireless systems operating over 440–900 MHz, a remarkable 2-to-1 frequency range. This bandwidth includes all UHF TV channels (14–69, 470–806 MHz). Supplied in pairs, these directional antennas are ideal for extending the operating range and reliability of diversity UHF wireless systems. They also eliminate the need for multiple frequency-specific antennas.

-A49 is designed for applications requiring increased distance

The A between the transmitter and the receiver—as in stadiums, concert tour venues, theater and lar line-of-sight may be obstructed. This ruggedly constructed paddle-style antenna is equally suited for installed and portable applications.

The antennas are compatible with virtually all UHF wireless receivers and provide a directional coverage pattern with a typical beamwidth of 90 degrees. They offer approximately 6 dB of RF gain improvement over standard receiver whip antennas. Antenna impedance is 50 ohms.

The antennas ar fiberglass. This heavy-duty, durable construction is engineered to resist the effects of corrosion, UV degradation and vibration, providing long life and stable performance under difficult operating conditions. High-quality, low-loss BNC connectors ar The antennas are supplied completely assembled.

e constructed of industrial-grade copper-clad epoxy

ge per

e positioned to minimize RF cable strain.

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Installation

Location

For best performance, the antennas should be mounted:

• Above head-height,

• In direct line-of-sight to the likely transmitter location(s),

• At least 3' (1 m) away from each other, and

• At least 3' (1 m) away from any large metal objects or sources of interference.

In addition, the length of RF cable run to the receiver should be minimized. Some experimentation with antenna positioning may be required to determine the best locations under typical conditions.

Important: While the antennas themselves are weather resistant, outdoor use should be temporary only and under dry conditions. Any moisture or corrosion in BNC cable connectors or associated cables can greatly affect RF performance at these frequencies.

Mounting

The ATW-A49 mounts to a 5/8"-27 threaded fitting. The antenna mount is designed to allow for vertical tilt adjustment through a 90° range. Horizontal adjustment is accomplished by rotating the antenna in the mounting fitting. For por be installed on a standard

Connections

After the antennas have been installed, connect them to the antenna inputs of either a wir Use RG58-type cable for cable lengths of up to 25' (8 m). For cable lengths greater than 25', RG8-type low-loss RF cable is recommended. RG8-type cable lengths over 100' (30 m) may cause significant signal loss. Because cable requirements vary considerably from one installation to another pre-terminated RF cables available from Audio-Technica will be found listed on the back page under “Optional Accessories.”

eless r

, RF cables ar

table applications, the antenna may

/8"-27 thread microphone stand.

eceiver or an antenna distribution system.

e not included. High

-quality,

Specifications

ATW-A49

Antenna Type Log Periodic Dipole Array (LPDA) Operating Bandwidth 440 – 900 MHz Gain 6 dB typical* Impedance 50 ohms typical* VSWR ≤ 1.7:1* Polar Pattern Elliptical, 90° acceptance, typical Polarization Vertical (when mounted vertically) Number of Elements 9 Maximum Power Input Not specified (intended as receive

Termination Type Fixed right-angle BNC female

Weight 11.5 oz (326 g) each Dimensions

Material Finish Black matte Mounting

* Within specified bandwidth This device is in compliance with applicable CE standar

antenna only)

Connector is positioned to minimize cable strain

10.55" (268 mm) L x 11.22" (285 mm) H x 0.98" (25 mm) D

Copper-clad epoxy fiberglass

ead; adaptor can swivel 90°

/8"-27 thr

ds and regulations.

AC12 RG58-type antenna cable, 12' (3.65 m) long,

terminated with BNC connectors.

AC25 RG8-type low-loss antenna cable, 25' (7.62 m) long,

terminated with BNC connectors.

AC50 RG8-type low-loss antenna cable, 50' (15.24 m) long,

terminated with BNC connectors.

AC100 RG8-type low-loss antenna cable, 100' (30.48 m) long,

terminated with BNC connectors.

Optional Accessories

One-Year Limited Warranty

udio-Technica professional wireless systems purchased in the U.S.A. are warranted for one year from date of purchase by Audio-Technica U.S., Inc. ( A.T.U.S.) to be free of defects in materials and workmanship. In event of such defect, product will be repaired promptly without charge or, at our option, replaced with a new product of equal or superior value if delivered to A.T. This war unauthorized repair or modification, or removal or defacing of the product labeling.

For return approval and shipping information, contact the Service Dept., Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224.

Except to the extent precluded by applicable state law,

or fitness for particular purpose expires when this warranty expires.

This warranty gives you specific legal rights, and you may have other rights which vary from state to state.

U.S. or an Authorized Service Center, prepaid, together with the sales slip or other proof of purchase date.

ranty excludes defects due to normal wear, abuse, shipping damage, or failure to use product in accordance with the instructions. This warranty is void in the event of

A.T.U.S. will have no liability for any consequential, incidental, or special damages; any warranty of merchantability

Prior approval from A.T

.U.S. is required for return.

Outside the U.S.A., please contact your local dealer for warranty details.

Visit our Web Site: www.audio-technica.com

Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224 330/686-2600 www.audio-technica.com