Shure WA404 User Guide

Shure Brothers Incorporated 222 Hartrey Avenue Evanston,

IL 60202-3696 U.S.A.

WA404 ANTENNAIPOWER DISTRIBUTION

SYSTEM FOR WIRELESS MICROPHONE

SYSTEMS

ANTENNA

RF OUTPUT

The Shure Model ~~404 is an amplified Antenna Dis-

tribution System and dc Power Distribution System bined in one compact unit. The system is a two-input, two-channel, eight-output amplified antenna splitter that allows you to use as many as four diversity wireless microphone systems with only two antennas. The

WA404 amplifies the wireless transmitter signals to

compensate for insertion loss and feeds the signals to their

respective wireless microphone receivers.

In addition, four 15 Vdc outputs on the rear of the provide a combined current of 2 amps to power up to four Shure diversity wireless microphone receivers, eliminating

the need for external power supplies. The built-in,

ciency switching power supply will accept mains voltages from 100 V to 240 V (with the appropriate ac power cord). The

WA404, for use with 100 to 120 V, is furnished with a detachable, 3-conductor power cord with a 3-pin grounded U.S. type ac connector. The V, is supplied with a power cord that has a Schuko connector at the mains end.

When planning a multiple microphone installation, keep in mind that each microphone must transmit on a different frequency and that frequencies must be selected in accordance with system characteristics. Contact your Shure dealer for further information and assistance.

The

WA404 is designed for use with Shure Model WA380 Half-Wave Antennas and Model WA420 Extension Coaxial Cables or other high-quality 50 coaxial cables. The

WA404 can also be used with the Quarter-Wave anten-

nas supplied with the wireless systems.

POWER CONNECTOR

15WOUTPUTI

WA404E, for use with 2201240

RF OUTPUT A

com-

AntennalPower Distribution

WA404

high-effi-

Model

WA404

User

Guide

SETUP AND INSTALLATION Selecting the Appropriate

Antenna(s):

Three versions of the WA380 Half-Wave Antenna are

available for wireless frequency bands:

WA380A - 169 to 185 MHz WA380B - 185 to 200 MHz WA380C - 200 to 230 MHz

When multiple WA404's are used, select antennas for

each

WS404 independently. When more than one frequen-

cy band is covered, select antennas as follows:

If the frequencies span two adjacent bands, select

antennas for the lowest frequency band.

If the frequencies span all three bands, use one

WA380A Antenna and one WA380C antenna.

Mounting the WA404 in a 19-inch Equipment Rack

1. Remove the single screw from each side of the WA404.

Position the supplied mounting brackets over the holes.

3. Attach the brackets using the two screws removed in Step 1 and the two screws included with the brackets.

Mounting the WA404 on a Flat Surface

To use the WA404 on a flat surface (table, shelf, work bench, etc.), attach the four supplied adhesive-backed rubber

bumbers to the bottom corners of the unit.

Connecting Antennas to the WA404

1. Connect each antenna to the WA404 using 6.1 m (20 ft)

WA420 Extension Cables.

2. If

WA380 antennas are used, locate and mount the antennas remotely as described in the instruction sheet. Use either the mounting brackets supplied with the sion cables for wall mounting, or a Shure Model Rack Mount

for rack mounting the antennas, or Shure

WA420 exten-

WA440

Model A57 Swivel Adapters (or equivalent) if standard microphone stands are

3. Fully extend all telescoping sections of the

used

to support the antennas.

WA380 antennas for optimum reception. Make sure that the extended antennas are vertical.

Connecting Receivers to the WA404*

Connect the Antenna

1. Outputs of the

WA404 with the supplied

Inputs of the receivers to the RF

cables.

2. Connect the receivers to the 15 Vdc outputs on the rear panel of the

WA404 using the Power Interconnect cables furnished. Note that the interconnect cables are furnished with locking plugs that mate with the

*Check power requirements before using with receivers made

manufacturers.

WA404.

other

01996,

Shure Brothers Inc.

27A8350 (PA)

Printed in U.S.A.

Connecting Power to the WA404

1. Connect the WA404 to the power mains, using the correct power cable. For a 100 to 120 V power source (WA404), use the standard three-prong grounded cable supplied. For a 2201240 V power source the cord with the CEE mains end.

NOTE:

procure a power cord having an nector to connect to the at the other end for connection to the mains. The supplied cord uses Harmonized IEC Cordage with color coding as follows:

2. Press the POWER switch to turn the unit ON. The green POWER LED on the front panel will light to indicate that the unit is powered, and that power is being supplied to any receivers connected.

For systems requiring other mains connectors,

Brown Blue GreenNellow = Ground

717 ("Schuko") connector at the

IEC 320 type mating con-

WA404 and an appropriate plug

Line

Neutral

(WA404E), use

Checking Operation

Test each microphoneltransmitter for optimum opera-

tion. Try different antenna locations to achieve the best performance levels. Refer to the system instructions material for additional information.

PLEASE NOTE

This product is not completely disconnected from the mains supply when the power switch is off.

SPECIFICATIONS

RF Carrier Frequency Range

169 to 230 MHz

Gain

3.5 dB nominal

Antenna Input lmpedance

nominal

RF Output lmpedance

nominal

Power

100 to 120 Vac (WA404); 2201240 Vac (WA404E); 50160 Hz; 50W (Typical)

DC Power Output

15 Vdc, 2 A maximum14 outlets (center pin is +)

Overall Dimensions

44.5 mm H x 435 mm W x 187 mm D (1 -314 in. H x 17-118 in. W x 7-318 in. D)

Weight

1.95 kg (4 Ib 4.5 oz)

Certifications

WA404: Listed by U; listed by CSA as Certified. FCC Verified un-

der Part 15 as a Class B digital device. WA404E: Approved for safety by VDE under DIN VDE 0805105.90 harmonized with CENELEC EN 60

950: 1988

STATEMENT OF CONFORMITY:

the Shure

meets the specifications and regulations embodied in Vfg 24311 991, amended 1 992. The Bundesamt gen in der Telekommunikation has been notified that this device has been marketed and has been provided the right to verify the device or system for compliance with the specifications.

not expressly approved by Shure Brothers your authority to operate this equipment.

with the limits for a Class B digital device pursuant to Part

15 of the FCC Rules and as set out in the Radio Interference

Regulations of the Canadian Department of Communications. These limits are designed to provide reasonable

protection against harmful interference in a residential

installation. This equipment generates, uses, and can radi-

ate radio frequency energy and,

accordance with the instructions, may cause harmful interference to radio communications. However, there is no

guarantee that interference will not occur in a particular

installation.

ence to radio or television reception, which can be deter-

mined by turning the equipment off and on, the user is en-

couraged to try to correct the interference by one or more

of the following meaures:

1. Reorient or relocate the receiving antenna.

2. Increase the separation between the equipment and

3. Connect the equipment into an outlet on a circuit differ-

4. Consult the dealer or an experienced

AntennaIPower Distribution System, WA404E,

INFORMATION TO USER:

This equipment has been tested and found to comply

this equipment does cause harmful interfer-

receiver. ent from that to which the receiver is connected. cian for help.

Changes or modifications

This certifies that

fijr Zulassun-

Inc. could void

nd installed and used in

radio/TV techni-

FURNISHED ACCESSORIES

Coaxial lnterconnecting RF Cable (8)

0.6m (2ft). 95B8217 Interconnecting Power Cables (4) 95A8373 Rack Mounting Brackets (2) 48A8012 Adhesive Bumpers (4) Line Cord, WA404, 100 to 120 Vac Line Cord, WA404E, 2201240 Vac

OPTIONAL ACCESSORIES

Antenna

169 to 185 MHz WA380A 185 to 200 MHz WA380B

200 to 230 MHz WA380C

Coaxial Antenna Cable Assembly,

6.1 m (20 ft) WA420 Antenna Rack-Mount Kit WA440

For additional service or parts information, please contact

Shure's Service department at 1-800-51 6-2525. Outside the

United States, please contact your authorized Shure Service

Center.

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66A8010 95A8389 95A8247