Shure 577B Handleiding

Shure Microfoon 577B

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Model 577B User Guide

27C1128 (Rev. 5) Printed in U.S.A.

TABLE 1. CABLE-TO-CONNECTOR WIRING

INPUT TYPE WIRE

COLOR

FUNCTION XLR

CONNECTOR

1/4 IN.

PHONE

PLUG

BALANCED

WHITE AUDIO+ PIN 2 TIP

GREEN AUDIO – PIN 3 RING

SHIELD CHASSIS

GROUND

PIN 1 SLEEVE

UNBALANCED

WHITE AUDIO -- TIP

GREEN AUDIO

GROUND

-- SLEEVE

SHIELD CHASSIS

GROUND

-- SLEEVE

NOISE-CANCELING HANDHELD DYNAMIC MICROPHONE

GENERAL

The Shure Model 577B SONOBAR® Microphone is a handheld dynamic

microphone designed for communications and paging applications that

require highly intelligible, low noise output. It can be used in all types of

mobile communications, from amateur radio to helicopter news and traffic

reports. It is also suitable for public address and paging systems in noisy

areas such as factories, airport terminals, and restaurants.

The 577B represents a significant improvement over most microphones

with anti-noise features. Shaped frequency response, directionality,

and distant sound discrimination contribute to total noise reduction. The

microphone operates on the pressure-gradient principle and has two sound

entry ports spaced a small distance apart.

The modular design of the 577B greatly facilitates field servicing. The

cartridge, switch, and cable can be replaced in a matter of minutes, if

necessary.

The 577B is built to withstand mechanical shocks, vibration, high

temperatures, and humidity. The exclusive ARMO-DUR

® case is impervious

to oil, grease, fumes, salt spray, sun, and corrosion. he “Million-Cycle”

press-to-talk switch ensures years of reliable service.

A mounting bracket is supplied to provide convenient hang-up when the

microphone is not in use.

Features

• Frequency response tailored for close-talk operation

• Extremely effective noise cancellation

• Dynamic microphone cartridge

• Modular design

• “Million-cycle” leaf-type press-to-talk switch

• TRIPLE-FLEX® cable provides three to four times the flex life of

most coiled cords

• Rugged ARMO-DUR® case

• Built-in hang-up button and supplied mounting bracket

OPERATION

For optimum performance and maximum rejection of background noise,

place your upper lip against the lip guard, approximately 25 mm (1 in.)

from the grille. Hold down the push-to-talk button while talking normally.

INTERNAL CONNECTIONS

The 577B is a balanced-line, low-impedance dynamic microphone. It is

designed for direct connection to low-impedance microphone inputs and/

or installations where long cable lengths are needed. It includes a four-

conductor (two conductors shielded) coiled-cord cable and a double-pole,

single-throw, leaf-type switch. The WHITE and GREEN leads are the “hot”

audio conductors; the shield is connected to microphone circuit ground. The

RED and BLACK leads control the switch circuit. The microphone circuit

is open when the switch is open, but can be easily modified for normally

shorted operation. Refer to Figure 1.

WHITE

INTERNAL CONNECTIONS

FIGURE 1

www.shure.com

Asia, Pacific:

Shure Asia Limited

22/F, 625 King’s Road

North Point, Island East

Hong Kong

Phone: 852-2893-4290

Fax: 852-2893-4055

Email: info@shure.com.hk

United States, Canada, Latin

America, Caribbean:

Shure Incorporated

5800 West Touhy Avenue

Niles, IL 60714-4608 USA

Phone: +1-847-600-2000

Fax: +1-847-600-1212 (USA)

Fax: +1-847-600-6446

Email: info@shure.com

Europe, Middle East, Africa:

Shure Europe GmbH

Jakob-Dieffenbacher-Str. 12,

75031 Eppingen, Germany

Phone: +49-7262-92490

Fax: +49-7262-9249114

Email: info@shure.de

CIRCUIT MODIFICATION

To modify the microphone circuit for normally shorted operation, proceed

as follows:

1. Remove the three No. 6 Phillips screws from the back of the

microphone case.

2. Separate the front and back sections of the case, and remove the

press-to-talk switch button.

3. Unsolder or clip the GREEN cable lead from the press-to-talk

switch solder lug.

4. Solder the GREEN cable lead to the GREEN cartridge lead on

the press-to-talk switch solder lug.

5. Replace the press-to-talk switch button in the front section of the

case, then join the case halves together and install the No.

6. Phillips screws removed in Step 1 above.

SPECIFICATIONS

Type

Dynamic, noise-canceling

Frequency Response

100 to 5,000 Hz (see Figure 2)

20 20000 1000 10000 50 100

9 8 7 6 5 4 3 2 9 8 7 6 5 4 3 2

+10

–10

B d

TYPICAL FREQUENCY RESPONSE

FIGURE 2

Impedance (at 1000 Hz)

Rated at 150 Ω (175 Ω actual) for connection to microphone

inputs rated at 19 to 300 Ω.

Output Level (at 1,000 Hz, 5/16 in.)

Open Circuit Voltage-66.0 dBV/Pa (0.5 mV)

0 dB = 1 volt per 1 Pascal/94 dB SPL

Hum Sensitivity

Equivalent to 32 dB SPL in 1 millioersted field

Operating Temperature Range

-40° to 74° C (-40° to 165° F)

Switch Type

Double-pole, single-throw, leaf-type, push-to-talk

Cable

Non-detachable. 1.8 m (6 ft), neoprene-jacketed coil cord,

four-conductor (two conductors shielded).

Case

Two-tone gray, high-impact ARMO-DUR®

Net Weight

330 grams (11.6 oz)

Dimensions

See Figure 3

MICROPHONE

MOUNTING BRACKET

46 mm

36.5 mm

4.7 mm

34.5 mm

10.3 mm

9.5 mm

9.1 mm

(23/64 IN.)

(3/8 IN.)

(1-13/16 IN.)

(1-7/16 IN.)

(3/16 IN.)

(1-23/64 IN.)

(13/32 IN.)

MO TI G ES,UN N HOL

CLEARANCE FOR

No. 8 SCREWS

67 mm

(2-5/8 IN.)

94 mm

(3-11/16 IN.)

45 mm

(1-25/32 IN.)

8 mm

(5/16 IN.)

14 mm

(9/16 IN.)

41 mm

(1-19/32 IN.)

19 mm

(3/4 IN.)

18 mm

(23/32 IN.)

4.8 mm

(3/16 IN.)

OVERALL DIMENSIONS

FIGURE 3

CERTIFICATION

Eligible to bear CE Marking. Conforms to European EMC Directive

89/336/EEC. Meets applicable tests and performance criteria in European

Standard EN55103 (1996) parts 1 and 2, for residential (E1) and light

industrial (E2) environments.

SUPPLIED ACCESSORY

Mounting Bracket (3 per kit)

REPLACEMENT PARTS

Cartridge R98B

Cable C117

Switch RK338S

SERVICE INFORMATION

For additional service or parts information, please contact Shure's Service

department at 1-800-516-2525. Outside the United States, please contact

your authorized Shure Service Center.

Product specificaties

Merk:	Shure
Categorie:	Microfoon
Model:	577B
Kleur van het product:	Grijs
Soort:	Radiomicrofoon
Connectiviteitstechnologie:	Bedraad
Ruisonderdrukking:	Ja
Microphone direction type:	Cardioïde
Gevoeligheid microfoon:	-66 dB
Frequentie microfoon:	100 - 5000 Hz