Shure EC User Guide

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Shure

Brothers Incorporated

222 Hartrey A

venue

Evanston IL 60202-3696 U.S.A.

EC SERIES WIRELESS MICROPHONE SYSTEMS

GENERAL

The

Shure EC Series wireless microphone systems are confi gurable, single-channel systems operating in the VHF band between 169.445 MHz and 216.100 MHz. All EC systems feature state-of-the-art, to generate an exceptionally clean, low-noise signal. This built-in frequency multiple trol cian ceiver.

SYSTEM COMPONENTS

Microphone-Transmitter lavalier microphon EC4 Receiver.

hand-held microphone with a built-in transmitter. It features PLL frequency control, an external antenna for increased range and freedom from dropouts, superb frequency response, extended dynamic heavy-duty models:

•

wireless

circuit is also programmable, so

can change the carrier

Each EC wireless system consists of a handheld EC2

EC2 Hand-Held Microphone-Transmitter. The EC2 is a

EC2/58, which includes the world-famous Shure SM58 cardioid dynamic

• EC2/87,

microphone.

• EC2/Beta

namic

• EC2/Beta 87, which features Shure’s premium supercardioid

condenser

EC1

Body-Pack T

control, extended dynamic range, a universal input, a battery test light, noiseless muting, and a rugged case.

WL93A Micro-Lavalier Microphone: The WL93A is an omnidirectional micro-lavalier electret condenser microphone that

lugs int

phase-locked loop (PLL) digital frequency control

control makes EC systems ideal for installations where

systems are to be used. The PLL frequency con

frequency of any EC transmitter and re

e o

range, an LED status indicator

grille with built-in pop

microphone.

which includes Shure’

58, which features Shure’s premium supercardioid dy

Beta 58 vocal microphone.

Beta 87 vocal microphone.

o the m

r a

r a W

A30

ransmitter.

icrophon

any factory-authorized techni

n EC1 B

ody-Pac

2 i

ntrumen

filter

. The EC2 is supplied in four

s SM87 supercardioid condenser

The EC1 features PLL frequency

e i

npu

t on the EC1 B

k T

ransmitte

t a

dapte

r c

able

, rugged metal handle, and

ody-Pack

r with a

, and a

EC Series W

Transmitter. and

low RF susceptibility. The WL93 can also be used as a pickup for acoustic instruments such as guitar, woodwinds and strings. The

WL84 supercardioid lavalier is also available.

WA302 Instrument Adapter Cable: The WA302 instrument adapter cable plugs into the EC1 Body-Pack Transmitter. It is designed for use with electric guitar and other electric instruments

EC4 Diversity Receiver. The EC4 features Shure’s exclusive MARCAD (MAximum With MARCAD, the EC4 constantly monitors signals on each of two receivers and combines them when both signals are usable. The result is increased tional

freedom from dropouts. The EC4 also uses PLL frequency

control

to lock onto a precise carrier frequency

bility

of interference from local sources.

PERFORMANCE CHARACTERISTICS

Operating

figured

to operate interference-free on one of 28 standard frequen

cies.

Frequency changes can be made by factory authorized ser

vice personnel.

Multiple System Installations. Up to 15 EC Series systems can be o termodulation a

ifferen

Directional

rectiona of RF energy in all directions. Similarly, the receiver antenna is equally sensitive in all directions in the horizontal plane when mounted vertically.

range cessful operation at up to 1000 feet (300 meters) is often accomplished. Conditions at the installation site (reflective surfaces, obstacles, radio interference, etc.) will ultimately dictate the system’s operating range.

any Vac mitters operate on most 9 volt alkaline batteries. Battery life depends mended).

l i

Operating Range. The recommended maximum operating

for a

Power

filtered 12.5 to 18 Vdc, 200 mA power source. A separate 120 adapter is included with

on the type and brand of battery (Duracell MN1604 recom

ireless Systems User Guide

It features smooth frequency response, low distortion

Ratio Combining Audio Diversity)

RF gain, improved reception, and excep

, reducing the possi

Frequencies.

perate

d s

imultaneousl

roblems

t f

requency.

ensitivity. Th

n the h

orizonta

ny EC syste

Requirements.

Shure EC wireless systems are con

y in a s

ingl

e i

erie

182.

nstallatio

ystem mus

s t

ransmitter

adiat

8 m

eters)

. H

owever

, each s

e E

l p

m i

C S

lane

; that is, they r

s 60

0 feet (

The EC4 receiver can be operated from

each system. The EC2 and EC1 trans

n w

t o

s are o

e e

qua

, a

lthough suc-

circuitry

ithou

perat

mnidi-

l a

mounts

t i e a



1996, Shure Brothers Inc.

27A8435

Printed in U.S.A.

2 M

ICROPHONE–TRANSMITTER

FEATURES AND CONTROLS (FIGUR

(EC2/BETA 58 S

E 1

EC11 BODY–PACK TRANSMITTER

)

HOWN)

FEATURES AND CONTROLS (FIGUR

EC11

BODY-PACK TRANSMITTER FEA

FIGURE

E 2

)

TURES AND CONTROLS

EC2 MICROPHONE–TRANSMITTE

1. Grille: Protect minimize

ferent

Set Screw:

3. Antenna: The EC

with a f

na tor

and the a

s the m

icrophon

reat

h and wind n

rille styling.)

Loosen only to change microphone heads.

2 uses a r

emal

e SMA c

ntenn

a are c

FIGURE

oise

eplaceabl

onnector

olor–code

R F

EATURE

e e

lemen

. (The v

. The t

d with w

S A

ND CONTROLS

t o

f the EC2, and h

ariou

s m

e e

xterna

ransmitte

hite

r SMA c , red, b

odel

l h

s have d

elica

l a

lue low, green, or brown stripes that correspond to the system’s operating frequency range. Make sure the connector and the antenna shar

4. MIC ON/OF phone

may o

that vents

the r

POWER ON/OFF Switch: Turns transmitter power on and

ithou

e t

he same color code.

F S

lid

e S

witch: Permit

t t

urnin

g the t

ccu

r when the m

eceive

r from p

ransmitte

icrophon

ickin

g up u

s user t

o “

mute

r off. This a

e i

s t

urne

d o

void

n o

nwanted signals.

” the m

s the “

r off and p

off.

Battery Test Light: Illuminates when the POWER switch is turned

n and a “

not

lluminate

7. Battery Compartment:

good

, the t

” b

atter

y is i

nstalled

. When this l

ransmitter wil

l n

ot work.

Unscrewing the handle and sliding it

igh

downward exposes the battery compartment and the audio GAIN Switch (9).

8. Frequency Identification Label: compartment, ing frequency

this label lists the transmitter’s original operat

9. Audio HI/LO GAIN Switch:

Located inside the battery

Controls audio level of the

phone.

elps

nten-

onnec-

, y

el-

icropop”

re-

t d

oes

micro

1. INPUT Jack: adapter

Battery Test Light: Illuminates when the POWER switch is

if-

turned on and a “good” battery is installed. If this light does not

on, the t

turn

MICROPHONE ON/OFF Switch: “Mutes” the microphone

without

POWER ON/OFF Switch: T

Antenna: A flexible antenna wire is permanently attached to the

otto

the antenna must

The microphone cable or the W

cable plugs into this connector

urnin

ransmitter wil

g the t

l n

ransmitte

ot work.

r o

ff, s

o n

urns transmitter on and of

m o

f the b

ody-pac

k t

ransmitter

hang in the vertical position, not coiled or

A300 instrument

o “

pop” sounds occur.

r p

rope

r o

peration,

bundled.

6. Audi

8. Belt Clip:

9. TA4F

10.

o L

eve

l C

oun

ous

d s

justments (se

ontrol: Allow

ources

. A s

e page 5

mal

s a

udi

l s

crewdrive

o l

eve

r i

l a

djustment

s s

upplie

s for v

d t

o make a

ari-

Frequency Identification Label: This label identifies the transmitter’s

original operating frequency

Allows the transmitter to be worn on

band

or guitar strap. It can be removed, if desired.

Microphone Cable Connector:

jack

on the body-pack transmitter

a belt, waist

Plugs into 4–pin input

Battery Compartment: Hinged cover on bottom surface

exposes

the battery compartment.

4 R

ECEIVER CONTROLS AND INDICATORS

(FIGUR

2. DIVERSIT

E 3)

EC4

RECEIVER FEA

TURES AND CONTROLS

FIGURE 3

108

POWER ON Indicator: This green light glows when the

POWER

button is turned on.

Y S

igna

l I

ndicators: Yellow ligh

s glow t

o show u able RF signals from antenna A, antenna B, or both. Normal operation these lights are flickering

3. AUDIO NORMAL Indicator: ly

AUDIO PEAK Indicator: This light glows red to show ap-

is i

ndicate

d when e

not

ights may indicat

indicators of signal

ithe

r o

e m

arginally acceptable signals.

This green light flashes regular

to show normal audio operation.

r both l

ight

s g

strength

low

. Note t

, but barely

proaching audio overload condition. Normal operation will cause

ccasiona

l f

lashin

g o

f this l

igh

t on loud s

ignals

; c

onstant glowing indicates excessive audio level and need to lower transmitter

5. VOLUME Rotary Control:

udio Gain switc

h o

r rotary control.

Determines signal level at both re

ceiver OUTPUT connectors.

6. POWE

R O

n/Of

f B

put

jack t

o the r

and remains o

utton: Applie

eceive

r c

n when p

ircuitry

owe

r i

s p

ower fro

. The g

s applie

m the D

ree

n P

d to the r

OWE

C p

R l

ight glows

eceiver.

owe

ANTENNA Connectors: UHF type connectors provide con-

nection

t the to th

oaxia

e o

o 1/4-wav

ptiona

l c

abl

e v

e i

n the o

l 1/2-wav

ertica

e h

l a

ntenna

ptiona

igh-gai

s s

upplie

l W

A42

0 A

n a

ntenn

ntennas (WA380).

d with the EC4, t

a C

abl

e Kit, o

12 VDC Negative Ground Coaxial POWER Jack: Accepts

power from the supplied ac adapter, or from any well filtered

12.5

to 1

8 V

dc (20

0 mA) p

SQUELCH Screwdriver Control: Automatically quiets or

ower supply.

“mutes” the receiver when no transmitter signal is received. This control is factory-set for optimum operation in most applications, the

“EC4

10.

OUTPUT Connectors: XLR connector provides balanced low

but can be adjusted for unusual conditions. See

Receiver Squelch Control Adjustment” paragraph.

impedance microphone-level output; 1/4-inch phone jack provides

nbalance

d a

uxiliar

y l

eve

l o

utpu

t t

o a

udi

o m

ixe

r o

r a

mplifier.

PRE-INSTALLATION REQUIREMENTS

Before

tem,

• A

attempting to install the EC wireless microphone sys

make sure you have the following items:

9V alkaline battery for the transmitter (Duracell MN1604 or equivalent). (NiCad)

A r

echargeable

attery may als

, h

o be u

eav

y duty 8.4V n

sed.

ickel-cadmium

• A microphone for the EC1 transmitter—either one designed

specifically for the transmitter (such as a Shure WL84 or

or a low impedance dynamic microphone

WL93),

with a micro

r i

hat

phone

adapter cable W

the electrical output of

cable

such as the Shure W

A310. If the system is to be connected

a musical instrument, an instrument

A302 must be used.

IMPORTANT: Other manufacturer’s microphones specified for wireless use are generally

not

compatible, as supplied, with

Shure wireless systems.

• A receiver-to-mixer cable with a 3-pin XLR connector (for bal -

anced cuit phon receiver

4 R

1. Plac ceiver and othe

2. If the r

icrophon

e plug on one end (for u

ECEIVER SETUP AND CONNECTIONS

e the r

near R

r d

eceiver is p

adhesive bumper

receiver is to be rack mounted, remove the screws on each side

of the r the holes, and secure the brackets with the two removed screws

and the t

3. Plu

g the A

the receiver.

4. Plug the A

5. Attac

h the s nectors on the receiver. Make sure they are pointing up and are

ithi

flecting

6. Attac

n the line o

h the a

/4-inch phone plug on the receiver end between the desired

EC4 OUTPUT connecto

IMPORT ANT: Improved diversity receiver performance may be obtained by remotely locating one or are

eparate

WA380

1/2-Wav

application.

They may b WA420 Antenn both

ntenna

of th

e rack u

operate

p to four r

WA404 amplifie

ransmitter Battery Selection

Only

two types of batteries are

EC1

and EC2 transmitters:

•

alkaline batteries (Duracell MN1604 or equivalent).A fresh

alkaline battery should provide 7 hours of operation.

•Rechargeable,

. N

iCa

ies

IMPORTANT: Use chargeable 8.4V NiCad battery. Carbon–zinc and zinc-chloride batteries will not provide sufficient power for proper operation,

and

EC1 TRANSMITTER SETUP EC1 T

With the transmitter POWER ON/OFF switch in

tion,

OPEN

d b

are not recommended.

ransmitter Battery Installation

slide

arrow until the cover pivots open. See Figure 4 below

e l

eve

l EC4 r

eceive

r o

utput)

, o

r 1

/4-inc

h 2

-cir-

utput)

eceive

igita

eceive

, and a m

r i

n its o

F n

ois

e s

l d

evices (e.g., C lace

s t

o the b

r c

ixe

r i

nput connecto

perating position

ource

s such a

d o

n a h

orizonta

otto

ase

, p

ositio

nbalance

D p

m c

n the m

s l

igh

layers an

l s

urface

orner

s o

ountin

d a

. A

t d

uxiliar

r o

n the o

voi

d p

immers

d d

, a

f the r

g b

y l

lacin

, c

igita

l d

ttac

eceiver

racket

eve

l E

ther.

g the r

omputers

elays).

h the f

our

. I

f t

s o

ver

wo supplied screws.

C a

dapte

r into the P

C a

dapte

r into a 1

upplie

d 1/4-wave antenna

f s

bjects wil

udi

d b

y 1.5 m

e H

l d

o c

onnectin

igh-Gai

eter

igh

egrade syste

e r

a C

abl

e K

e r

hur

its

emotel

sin

must

g the S

eceiver

d A

ntenna/DC Power Distributio

OWE

R jack o

20V

, 6

0 H

t o

f the t

ransmitter

m p

g c

abl

e with a

r and the m

s (60 i

n A

ntenna

emotel

. If the r

y l

e W

A44

ixe

oth antennas so tha

nches

) o

s are r

y l

ocate eceive

ocate

d o

0 a

ccessor

s with only two a

n the rear p

z power source.

s t

o the A

NTENN

. O

bstruction

erformance.

n XLR c

r or a

r m

ore

onnecto

mplifie

. O

ptiona

ecommende

d u

sin

g one o

r i

s t

o b

e rack m

r m

ounte

d o

y r

ack-moun

ntennas

, use the S

n S

ystem.

ane

A c

s or r

r i

nput.

l S

d for t

r two S

ounted,

n the f

t kit. T

on-

r or a

t t

hey

hure hure

ront

hure

recommended for use with the

eav

atterie

y duty 8.4V n

s w

ill only provid

only a 9

V a

ickel-cadmiu

e 1.5 t

lkalin

e b

o 2 h

attery o

m (

our

r a h

NiCad

) b

s o

f o

peration.

eavy-duty

atter-

, r

the OFF posi

the battery compartment access cover toward the

l o

his

Insert a new 9V alkaline battery into the battery compartment.

Observe

Checking

proper battery polarity (“+” and “–”).

PRESS HERE AND SLIDE

COVER BACK T

ALKALINE

BATTERY

EC1 BATTER

the EC1 T

ransmitter Battery

Y I

NSTALLATION

FIGURE 4

check the battery in the EC1 transmitter

O OPEN

, turn the transmit

ter POWER switch on and observe the Battery Test light. It should

be bright and clearly visible, indicating adequate voltage.

the light is dim, the battery voltage has dropped below 6.5 volts

and

the battery should be replaced Cad only). If the light does not turn on, the transmitter will not op erate

and the battery should be replaced.

(9V alkaline or recharged Ni

Microphone Connections

Plug the lavalier microphone cable or the W

adapter

cable into the 4-pin connector on the EC1.

If you are using a lavalier microphone, press the microphone

into

the necktie mounting block and clip it to your tie or lapel. If

you

are using an electric instrument, plug the W

ment

adapter cable into you guitar or instrument.

TRANSMITTER

A310 MICROPHONE

ADAPTER CABLE

132

A302 INSTRUMENT ADAPTER CABLE

TIP

SLEEVE

EC1

TRANSMITTER CABLE CONNECTIONS

EC1

INPUT CONNECT

BLACK

1 – GROUND

2 – +5 VDC 3 – AUDIO (FOR DYNAMIC

MICS OR INSTRUMENTS) 4 – 20K T

PLUG SHOR FOR CONDENSER MICS)

910K

FIGURE 5

A302 instrument

O GROUND (MA

TS T

A302

TING

O PIN 3

instru

Any Shure wireless lavalier microphone or accessory cable

with

a Switchcraft T

rectly

into

the transmitter input connector

microphones

A4F type 4-pin (female) connector plugs di

. Many other condenser

will operate using the transmitter’s regulated +5

V DC power on pin 2. Low impedance dynamic or ribbon microphones with pin 2 output can be used with the optional WA310 adapter

NOTE: Phantom powered condenser microphones will not nor

mally

cable. See Figure 5.

operate with the EC1/W

A310 transmitter configuration

EC1 Audio Gain Adjustment

The EC1 transmitter audio gain has been factory set to pro-

vide

a typical level. However

singing or loud musical

, for SPL applications such as loud

instruments,

the preset audio gain level on the EC1 transmitter may be too high, as indicated by the steady glow of the red AUDIO PEAK light on the EC4 receiver when

an RF signal is present.

For low SPL applications, such as soft-spoken presenters,

the

audio gain setting may need to be increased, as indicated by

the

failure of the AUDIO PEAK light to turn on when an audio

nal

is present. I

f n

ecessary

1. For High SPL Applications

turn wise played.

2. For Low SPL

, a

djus

t the a

udi

o gain on the EC1 a

s follows:

: Using the supplied screwdriver

the

MIC LEVEL control on the transmitter counterclock

while the vocalist is speaking or an instrument is being

See Figure 6.

Applications:

Using the supplied screwdriver

sig

turn the MIC LEVEL control on the transmitter clockwise until the

red AUDIO PEAK indicator

sionally

NOTE: Whe

mitter

while the microphone is in use. Refer to Figure 6.

SCREWDRIVER

(SUPPLIED)

EC1

BODY

TRANSMITTER

-PACK

EC1

n the EC4 r

s OFF, the a

udio mixe

AUDIO

AUDIO GAIN ADJUSTMENT

eceive

on the receiver flickers occa

LEVEL CONTROL

FIGURE 6

r i

s ON and the EC1 o

r gain s

houl

d b

e t

urne

LOW

HIGH

d d

r EC2 t

own

rans-

, s

ince the receiver can receive signals from other sources. If the mixer controls

are not a

ccessible

, turn the r

eceive

r v

olum

e d

own when the transmitter is not in use to prevent unwanted signal pickup. The

side

ransmitte nterference

r may also b

. See the S

e left o

quelc

n (

h C

muted

) t

o g

ontro

uar

l a

djustment paragraph.

d a

gainst out-

EC2 TRANSMITTER SETUP EC2 T

ransmitter Battery Installation

1. Make sure the transmitter POWER ON/OFF switch is in the

OFF position.

While holding the upper part of the transmitter, unscrew the

lower

handle and slide it downward. as shown in Figure 7.

GRASP

MICROPHONE

HERE

UNSCREW

OWER

EC2

AND

HANDL

OPEN

TTER

FIGURE 7

E T

Y INST

ALLATION

ALKALINE

BATTERY

(INSER

T “+” SIDE

FIRST

Insert a new 9V alkaline battery into the battery compartment.

Observe

proper battery polarity (“+” and “–”). Close the bat

tery compartment after the battery has been installed.

Checking th

hec

e EC2 T

k the b

ransmitter Battery

atter

y i

n the EC2 t

ransmitter, tur

n the t

ransmitter POWER switch on and observe the Battery Test light. The light should

e b

righ

t and c

learl

y v

isible

, i it is dim, the b battery

t d

e b

attery shoul

houl

oes no

the ligh th

atter

d be r

t glow a

y v

eplace

d be d

oltag

t a

iscarde

e has d

d (

alkalin

ll, th

ndicatin

roppe

e o

e t

ransmitter wil

d o

r recharged.

d b

r r

echarge

g a

elo

dequat

w 6.5 v

d N

l n

ot operat

olt

iCa

e v

oltage s and t d o

nly)

e a

. I he . I nd

EC2 Audio Gain Adjustment

The

EC2 audio gain has been factory set in the LO position

for high sound pressure level (SPL) applications. For low SPL applications, just

Unscrew the handle and locate the audio GAIN switch adja

With the system ON and the transmitter in use, select either

NOTE:

load

the preset audio gain may be

too low

. If necessary

, ad

the audio gain on the EC2 as follows: cent

to the battery holder. See Figure 8.

GAIN

HI/LO

SWITCH

EC2 AUDIO GAI

the

LO gain or HI gain position so that the receiver’s AUDIO

PEAK

light flickers only occasionally

N A

FIGURE 8

DJUSTMENT

Some very loud vocalists may experience audible over

even when the audio GAIN switch is in the LO position. The EC2 can be easily modified for higher SPL input. For more information,

contact your dealer or the

Shure Service Department.

OPERATING THE SYSTEM

1. T

urn on the transmitter and receiver POWER switches.

2. Make sure the transmitter MIC ON/OFF switch is on.

Talk into the microphone (or play a musical instrument) and

observe receiver.

the AUDIO PEAK and DIVERSITY lights on the

Normal operation is indicated by:

EC4

• Steady glow of one or both DIVERSITY lights on the EC4

receiver (indicates good RF signal).

•Steady

AUDIO signal).

• Occasional

Continue talking or playing into the microphone and move

around ceiver yellow or when change

glow

or flashing AUDIO NORM light (indicates good

flashing of the red AUDIO PEAK light.

the performing

area. At each location, observe the re display and make sure the RF signal is adequate. If the DIVERSITY lights flicker

the W

A380 antennas. The audio level should only change

, reposition the EC4

receiver

the loudness of the audio source changes; it should not

when the microphone is moved

around the perform

also

uncover locations that are prone to audio feedback.

IMPORTANT:

and

can present a variety of problems.

formance

Every

without

wireless microphone installation is unique,

Never

a “walkthrough” first. If major changes (equip

attempt a live per

ment, scenery, etc.) have been made since the walk-through,

ing area. Checking microphone operation in this manner will

check the wireless microphone operation again—as close to

performance

4 R

The and does not normally ting

needs to be equipment tion

site, proceed as follows:

1. Plac

during

2. Turn off the t

Turn the receiver VOLUME control full counterclockwise and

turn

Observe the lights on the receiver

time as possible.

eceiver Squelch Control Adjustment

SQUELCH control is preset for most operating conditions

require readjustment. However

changed to compensate for the ef

in the system or for the RF conditions at the installa

e the w

ireles

s s

yste

m i

n the l

ocatio

n w

a p

erformance.

her

ransmitter POWER switch.

the P

OWER switc

h o

front panel. If the DIVERSI TY A or B, AUDIO NORM, or PEAK lights are glowing, the SQUELCH control needs to be readjusted. Slowly turn the SQUELCH tinue

control clockwise until all the lights turn of

turning the SQUELCH control slightly

past this point.

NOTE: Turning the SQUELCH control clockwise will prevent unwanted signal when

the m

decrease the system’s operatin

5. To r

etur

n the S

back

to the m

4 R

eceiver Volum

s and n

icrophon

QUELC

idrang

e (

e C

e s

H c

ontrol

ois

e from o

igna

l i

ontro

straigh

s not p

g r

ange.

l t

o the f

t up) p

verridin

resent

actory setting

osition.

g the s

, but will e

The VOLUME control on the EC4 receiver affects both out-

puts

on the rear panel. This control can be adjusted to make the system output identical to that of a conventional wired microphone, avoiding extreme differences in mixer input level settings.

urning the VOLUME control counterclockwise decreases

the

output level; turning it clockwise increases output.

Changing Operatin

g F

requency

The carrier frequency of any EC Series transmitter and receiver may be changed by a factory-authorized technician. Please

contact your local dealer

Shure

Service Department for details. The modifications

factory

training and cannot be made by the end user

Controlling Multipath T

, sound system contractor

ransmission

Multipath transmission (or “dropout”) occurs when the RF

signal and a reflected signal arrive at the receiver at dif times

or out of phase, or when the structed. To

The result is excessive

avoid this phenomenon, observe the following precautions:

signal path is completely ob

noise or temporary signal loss.

• Maintain line-of-sight transmission. Ideally, the transmitter

should always be

user antennas.

•Keep

the distance between the transmitter and the receiver

as short as possible.

tennas

•Avoid

operating the wireless microphone around reflective sur

especially metal surfaces.

faces,

able to see at least one of the receiver

• Make sure both transmitter and receiver antennas are posi-

tioned vertically.

, if this set

fects of other

e i

t will b

e u

f. Con

quelc

h c

ffectively , r

otat

, or the

require

direct

sed

ircuit

e i

ferent

TROUBLESHOOTING

the i

nstallatio

n and s

etu

p i

nstruction

s have been f

ollowe

d a

a problem still exists, perform the troubleshooting procedures in

the tabl Shure

e b

ervic

elow

. I

f the p

e D

epartment.

roble

m p

ersists

, c

ontac

t your d

eale

r o

r t

PROBLEM

No receiver sound; neither DIVERSITY light on receiver is glowing

No receiver sound; one or both DIVER-

lights are glow

SITY ing

Make sur Check transmitte

e P

OWER switc

r b

attery an

h on t

d r

ransmitte

eceive

Check receiver squelch setting.

r a

Check receive Make sur Make sur

transmitte With

the microphone POWER switch ON, turn up the receiver volume control.

Make sure transmitter MIC switch is ON.

Check transmitter microphone MUTE switch.

ntenna connections.

e t

ransmitte

e t

ransmitte

r and the r

r and r

eceive

r and r

eceive

eceiver. Highe

r are o r a

r gain a

Make sure microphone cable plug is locked into transmitter connector Check connection between receiver and microphone mixer Talk

into the microphone and observe the receiver AUDIO light. If the light

in sound system.

Noise from receiver with transmitte VERSITY

glow o

ceiver

ight

r off; D

s on r

r f

licker

Received signal is noisy or contains extraneous sounds with transmitte

r o

Look

for strong local interference sources such as other radio signals. (Nearby motors

I-

could

also be the problem.) Reposition antennas.

SQUELCH control may be set too low

Look

for strong local interference sources such as other radio signals, nearby motors or lighting equipment.

Remove the source of interference, reposition the receiver T

wo transmitters may be operating on the same frequency

Signal ma high

y b

gain a

ntennas (WA380

e too w

eak. Repositio

) and a

n a

ntenna cable ki

SQUELCH control may be set too low

SPECIFICATIONS

OVERALL SYSTEM RF Carrier Frequency Range

169.445 MHz to 216.100 MHz

Frequency Stability

32.5 ppm, ±5.5 kHz (Complies with FCC regulations)

orking Range

600 feet (182.8 m) at 50 mW

Modulation

±15

kHz deviation compressor-expander system with pre- and

de-emphasis

Harmonic Distortion (ref. ±15 kHz deviation, 1 kHz modu

Total

lation)

0.4%

typical, 0.7% maximum

Dynamic Range

>102 dB A-weighted

Audio Frequency Response

80 to 15,000 Hz, ±2 dB (NOTE: Overall system response depends

on microphone element; refer to microphone frequency

response

Operating T

–4°

to 122° F (–20° to 50

EC4 RECEIVER RF Sensitivity

0.45 µV for 12 dB SINAD typical

Image Rejection

90 dB typical

Spurious Rejection

80 dB typical

Ultimate Quieting

>94 dB A-weighted

Squelch Quieting

>94 dB A-weighted

(average conditions)

curves on page 8)

emperature Range

° C)

(reference 15 kHz deviation) (reference 15 kHz deviation)

SOLUTION

r and r

eceive

r i

s ON (Bot

r p

ower source.

n sam

e o

peratin

g f

ntennas follow lin

e o

f sight

ntennas (WA380

. Readjust as necessary.

ntennas

. I

f p

ossible

t (

WA420

, move them c

. Readjust as necessary.

Squelch Threshold

2.0 µV

preset, adjustable from 2.0 t

Output

dBV, 1 kΩ output impedance, unbalanced; –18 dBV

–2 output impedance, balanced (volume full clockwise; full devi-

unloaded)

ation;

Antenna Input Impedance

50Ω

nominal

Antenna

Plastic sheathed stainless steel, PL-259 UHF connectors

Power Requirements

12.5 to 18 VDC (negative ground), 200 mA;120 Vac, 60 Hz Model PS20 external AC adapter supplied (Model PS20E 220/240

Overall Dimensions

1.75 in. H x 17.125 in. W x 7.87 in. D (44.5 mm x 435 mm x 200 mm) Includes front panel controls and rear panel UHF connectors; does not include antennas or rack ears

Weight

4.32 lbs (1.962 kilograms)

Certification

Complies with FCC Part 15 (FCC ID: DD4L4) Power supply UL listed, CSA listed as Certified Conforms to European Union Directives, eligible to bear CE marking; meets European EMC Immunity Requirements (EN 50 082-1, 1992); ESD (IEC 801-2); RF radiated (IEC 801-3); EFT

(IEC 801-4).

EC1 BODY–PACK TRANSMITTER RF Power Output

50 mW maximum

Modulation

(40K0F3E, FCC Part 90, FCC Part 74) ±15 kHz

62 µ

sec pre–emphasis

h g

ree

n L

EDs ar

e i

lluminated).

requency.

. If n

) m

ay b

ecessary

e r

equired.

, r

educ

e the d

is glowing, the problem is elsewhere

or lighting equipment

, or reposition the antennas.

. Locate and turn one of

lose

r t

) are a

vailable

o the t

ransmitter

ο 50 µV

/4 wavelength, 428 mm,

ac, 50/60 Hz available optional)

istanc

. O

e b

ptiona

etwee

n t

l 1/2 w

, 150

deviation,

ave

Ω

Audio Gain Adjustment Range

40 dB

Input Impedance

Actual: 17 kΩ, pin 4 wired to pin 3 for WL93 or other wireless condenser phone

microphone; 100 kΩ, pin 4 open for dynamic

or instrument pickup

micro

Power Requirements

Battery Type: 9 volt a

lkalin

e (

Duracel

l 1604 o

r e

quivalent)

8.4-volt nicad optional

Battery Life: 7 hours minimum (alkaline)

1.5 to 2 hours typical (nicad, per charge)

Current Drain: 55 mA typical

Antenna

Attached, 15.2 in. (386 mm), flexible wire

Modulation Limiter

Internal compressor

Audio Polarity

EC1 Transmitter with Shure W

Positive voltage and

pressure on microphone diaphragm produces positive

on pin 2 with respect to pin 3 of low-impedance output,

on tip with respect to ground of aux output.

EC1 Transmitter with W

Positive

voltage applied to tip of W of WA310 XLR connector results respect to

to pin 3 of low-impedance output or on trip with respect

ground of aux output.

Dimensions (excluding antenna and belt clip

82.6 mm High x 63.5 mm (31/

in.

x 21/

in. x 11/32 in.)

ireless Microphones:

A302 or W

A310 Cable:

A302 phone plug or

in positive voltage at pin 2 with

)

Wide x 26.2 mm Deep

to pin 3

Weight

Without Battery: 96.4 g (3.4 oz) With Battery: 142 g (5 oz)

Certification

Complies with FCC Parts 74 and 90 (FCC ID: DD4L1

1) Conforms to European Union Directives, eligible to bear CE marking; meets European EMC Immunity Requirements (EN 50 082-1, 1992); ESD (IEC 801-2); RF radiated (IEC 801-3); EFT

(IEC 801-4).

EC2 Polar Patterns (See Figure 10)

Uniform with frequency Cardioid (EC2/58) Supercardioid (EC2/Beta 58, EC2/87, EC2/Beta 87)

, symmetrical about axis

EC2 TRANSMITTER RF Power Output

50 mW maximum

Modulation

FM (60K0F3E) ±15 kHz deviation, 62

µs pre-emphasis

Modulation Limiter

Internal compressor

Audio Polarity

Positive

pressure on microphone diaphragm produces positive voltage on tip (with respect to ground) of unbalanced output, and

on pin 2 (with respect to pin 3) of balanced output

Audio Gain Adjustment Range

15 dB (2-position switch); additional –6 dB internal pad

Antenna

Removable, or-keyed

to transmitter frequency range).

external 1/4-wave helical antenna

(antenna is col

Power Requirements

Battery T

ype: 9 volt a

lkalin

e (

Duracel

l M

N160

4 o

r e

quivalent)

8.4-volt nicad optional

Battery Life: 7 hours minimum (alkaline)

1.5 to 2 hours typical (nicad, per charge)

Current Drain: 55 mA typical

EC2 T

ransducer T

ype

EC2/58, EC2/Beta 58: Dynamic EC2/87, EC2/Beta 87: Electret bias condenser

TYPICAL POLAR PATTERNS

FIGURE 10

2 F

requenc

Frequency at

a d

istanc

y R

espons

e of 0.6 m

e c

eters (

e (See F

urve

s b

elo

w were m

2 f

eet

igur

e 1

easure

) from t

he sound source.

d i

n a free f

ield

Weight

Model Without

EC2/58

EC2/Beta 58

EC2/87

EC2/Beta 87

453.6 g (16.0 oz) 496.1 g (17.5 oz)

337.2 g (1

Battery

1.1 g(14.5 oz )

1.9 oz)

ith Battery

453.6 g (16.0 oz)

382.7 g (13.4 oz)

Certification

Complies

with FCC Parts 74 and 90 (FCC ID: DD4L2) Conforms to European Union Directives, eligible to bear CE marking; meets European EMC Immunity Requirements (EN 50 082-1, 1992); ESD (IEC 801-2); RF radiated (IEC 801-3); EFT

(IEC 801-4).

REPLACEMENT PARTS

SM58 Cartridge Beta

58 Cartridge

SM87

Cartridge R128

SM58

Grille

Beta

58 Grille

SM87

Grille

Beta

87 Cartridge

Beta

87 Grille

EC4

AC Adapter

EC4

1/4-W

∗

Replacement

Shure Distribution Centers.

cartridges for the Beta 87 are available only through factory exchange or through

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . .

ave Antenna Assembly

PS20 (120V);PS20E (220/240V)

. . . . . . . . . . . . . . .

R158. R160.

RK143G.

RK265G

RK277G.

N/A∗.

90B3955. 90C8342.

FURNISHED ACCESSORIES

Rack Panel Bracket (EC4) 48A8012. Swivel

Adapter (EC2) Storage Storage

Bag (EC1) Bag (EC2)

. . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

WA370A.

26A13. 26A14.

OPTIONAL ACCESSORIES

e 4

-Socke

t C

Miniatur In-Line

Audio Switch (EC1)

/2-Wave

Antenna

Antenna (EC4; specify frequency)

Distribution System Antenna/Power Antenna

Cable Kit (EC4)

onnector (EC

Distribution System

Antenna Rack Mount Kit (EC4) WA440.

∗∗Includes cable, UHF adapter, and wall–mount bracket.

1 B

ody-Pack) WA330.

. . . . . .

. . . . . . . . . . . . . . . . . . . . .

WA380A/B/C/D.

. . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . .

WA420∗∗.

. . . . . . . . . . . . . . . . . .

WA360. WA400.

WA404.

INFORMATION TO THE USER

The EC

4 R

eceive

r c

omplie

s with P

art 15 o

subjec

t t

o the c

onditio

n that this d

EC4 Receiver has been tested and found to comply

The

its

of Part 15 of the FCC Rules. These limits are designed to provide rea

sonable

protection against harmful interference in a residential installa tion. This equipment generates, uses and can radiate radio frequency energy

and, if not installed and used in accordance may cause harmful interference to radio communications. However, there

is no guarantee that interference will not occur in a particular instal

lation.

If this equipment does cause harmful interference to

vision

reception, which can

and

on, the user

of the following measures:

) R

ncreas

(2)

ceiver.

(3) Connec

which

the r

) C

CAUTION:

Brothers,

is encouraged to try to correct the interference by one or

eorien

t o

r r

elocat

e the s

eparatio

t the e

o o

r T

V r

t the d

eale

hanges or m

oul

d void your a

quipmen

eceive

adi

onsul

Inc. c

evic

be determined by turning the equipment of

e the r

eceivin

n b

etween th

t into an o

r i

s connected.

r or a

n e

xperience

odification

uthorit

f the FCC R

e does not c

g a

ntenna.

e e

quipmen

utle

t o

n a circui

d r

adio/T

s not e

xpressl

y t

o o

perat

ules

. O

armfu

l i

with the lim

radio or tele

adi

ifferen

t from that t

pprove

quipment.

peratio

nterference.

o o

n for h

d b

aus

e h

with the instructions,

t and r

t d

V t

echnicia

y a

e the e

r T

y S

n i

V r

elp. hure

TYPICAL FREQUENCY RESPONSE CURVES

FIGURE 11

Overall Dimensions

(excluding antenna)

EC2/58, EC2/Beta 58: 237 mm x 50.8 mm (9 5/ EC2/87, EC2/Beta 87: 213 mm x 50.8 mm (8 3/

16 8

x 2 in.)

FCC LICENSING INFORMA

ode

Shure

Parts

74 and 9

IMPORTANT: Licensing of Shure wireless microphone equip-

is the user’s responsibility, and licensability depends on the

ment user’s cy.

Shure

nications

l EC1 and EC2 T

classification and application, and on

strongly urges the user to contact the appropriate telecommu

authority concerning proper licensing.

ransmitter

TION

s are T

ype-Accepte

the selected frequen

d u

nde

r F

Shure EC User Guide

Specifications and Main Features

Frequently Asked Questions

User Manual