Shure EC Specification Sheet

Shure

Brothers Incorporated

222 Hartrey A

venue

Evanston IL 60202-3696 U.S.A.

Phone:

In Europe, Phone: [phone] Fax: [phone]

Internationally

800-257-4873 Fax: [phone]

, Phone: [phone] Fax: [phone]

W

eb Address: http://www

.shure.com

EC 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.

wireless

circuit is also programmable, so

can change the carrier

phase-locked loop (PLL) digital frequency control

control makes EC systems ideal for installations where

systems are to be used. The PLL frequency con

any factory-authorized techni

frequency of any EC transmitter and re

SYSTEM COMPONENTS

Each EC wireless system consists of a handheld EC2
Microphone-Transmitter
lavalier microphon
EC4 Receiver.

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

•

• EC2/87,

• EC2/Beta

range, an LED status indicator

grille with built-in pop

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

microphone.

namic

microphone.

which includes Shure’

58, which features Shure’s premium supercardioid dy

Beta 58 vocal microphone.

e o

o

r a W

r a

n EC1 B

A30

ody-Pac

2 i

ntrumen

filter

. The EC2 is supplied in four

s SM87 supercardioid condenser

k T

ransmitte

t a

dapte

r c

, rugged metal handle, and

able

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

condenser

EC1

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 plugs into the microphone input on the EC1 Body-Pack
Transmitter.
and

low RF susceptibility. The WL93 can also be used as a pickup

for acoustic instruments such as guitar, woodwinds and strings.

WL84 supercardioid lavalier is also available.

The

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

Beta 87 vocal microphone.

Body-Pack T

It features smooth frequency response, low distortion

ransmitter.

Ratio Combining Audio Diversity)

The EC1 features PLL frequency

circuitry

r with a

, and a

-

-

-

-

n

-

.

.

Specification Sheet

With MARCAD, the EC4 constantly monitors signals on each of
two receivers and combines them when both signals are usable.
The result is increased

freedom from dropouts. The EC4 also uses PLL frequency

tional
control

to lock onto a precise carrier frequency

of interference from local sources.

bility

PERFORMANCE CHARACTERISTICS

Operating

figured

Frequency changes can be made by factory authorized ser

cies.
vice personnel.

Multiple System Installations. Up to 15 EC Series systems

can

b

e o
termodulation
a

d

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.

Operating Range. The recommended maximum operating

for a

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

Power

any

filtered 12.5 to 18 Vdc, 200 mA power source. A separate 120

Vac

adapter is included with
mitters operate on most 9 volt alkaline batteries. Battery life de­pends
mended).

FURNISHED

Rack

Panel Bracket (EC4)
Swivel
Storage
Storage

OPTIONAL

Miniature 4-Socke
In-Line

1

/2-Wave
Antenna
Antenna/Power
Antenna
Antenna

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

Frequencies.

to operate interference-free on one of 28 standard frequen

perate

d s

p

t f

requency.

S

l i

n the h

ny EC syste

r

ange.

Requirements.

on the type and brand of battery (Duracell MN1604 recom

ACCESSORIES

Adapter (EC2)

Bag (EC1)
Bag (EC2)

ACCESSORIES

Audio Switch (EC1)

Antenna (EC4; specify frequency)

Distribution System
Cable Kit (EC4)

Rack Mount Kit (EC4)

RF gain, improved reception, and excep

, reducing the possi

Shure EC wireless systems are con

imultaneousl

roblems

ensitivity. Th

orizonta

m i

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

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

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

t C

onnector (EC

Distribution System

y in a s

ingl

e i

. H

owever

, each s

e E

l p

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

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

1 B

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

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

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

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

nstallatio

ystem mus

erie

s t

ransmitter

adiat

182.

8 m

eters)

ody-Pack) WA330.

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

. . . . . .

WA380A/B/C/D.

n w

t o

s are o

e e

qua

, a

lthough suc-

48A8012.

WA370A.

W

W

ithou

perat

l a

26A13.
26A14.

WA360.
WA400.

A404.

A420∗.

WA440.

t i
e a

mnidi-

mounts

-

-

-

-

-

n-

t

-

-



1997, Shure Brothers Incorporated

Page

1 of 4

Printed in U.S.A.

EC WIRELESS MICROPHONE SYSTEMS

4 R

ECEIVER

EC1

1 B

ODY–P AC

Specification Sheet

K T

RANSMITTEREC

EC2 MICROPHONE–TRANSMITTER

OVERALL SYSTEM SPECIFICA

RF

Carrier Frequency Range

169.445 MHz to 216.100 MHz

Frequency Stability

±

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

W

orking Range

600 feet (182.8 m) at 50 mW

Modulation

±15 kHz deviation compressor-expander system with

and de-emphasis

pre-

Total

Harmonic Distortion

modulation)

typical, 0.7% maximum

0.4%

Dynamic Range

>102 dB A-weighted

Audio Frequency Response

80

to 15,000

depends

response curves on page 4)

quency

Operating T

–20°

to 50° C (–4° to 122° F)

(average conditions)

(ref. ±15 kHz deviation, 1 kHz

Hz, ±2 dB (

on microphone element; refer to microphone fre

emperature Range

NOTE

TIONS

: Overall system response

-

1997,

Shure Brothers Incorporated

Page

2 of 4

Printed in U.S.A.

EC WIRELESS MICROPHONE SYSTEMS

EC4

RECEIVER SPECIFICA

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 (reference 15 kHz deviation)

>94 dB A-weighted

Squelch Threshold

2.0 µV

preset, adjustable from 2.0 t

Output

dBV

, 1 kΩ output impedance, unbalanced; –18 dBV

–2
put impedance, balanced (volume full clockwise; full deviation;
unloaded)

Antenna

Input Impedance

50Ω

nominal

Antenna

sheathed

Plastic
UHF connectors

Power Requirements

12.5

to 18 VDC (negative ground), 200 mA;120 V

PS20

external AC adapter supplied (Model PS20E 220/240 Vac,
Hz available optional)

50/60

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

082-1, 1992); ESD (IEC 801-2); RF radiated (IEC 801-3); EFT

801-4).

(IEC

EC1

BODY–P

RF Power Output

50 mW maximum

Modulation

(40K0F3E, FCC Part 90, FCC Part 74) ±15 kHz deviation, 62

FM
µsec

pre–emphasis

Audio Gain Adjustment Range

40 dB

Input Impedance

Actual:

17 kΩ, pin 4 wired to pin 3 for WL93 or other wireless
microphone; 100 kΩ, pin

denser
or

instrument pickup

Power Requirements

Battery Type: 9 v
Battery Life: 7 hours minimum (alkaline)
Current Drain: 55 mA typical

Antenna

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

Modulation Limiter

Internal compressor

(reference 15 kHz deviation)

stainless steel, 1/4 wavelength, 428 mm, PL-259

ACK TRANSMITTER SPECIFICA

ol

t a

8.4-volt nicad optional

1.5 to 2 hours typical (nicad, per charge)

lkalin

TIONS

ο 50 µV

, 150Ω out

ac, 60 Hz

Requirements (EN 50

TIONS

4 open for dynamic microphone

e (

Duracel

l 1604 o

r e

quivalent)

Model

con

-

-

Specification Sheet

Audio Polarity

EC1 T

ransmitter with Shure W

Positive pressure on microphone diaphragm produces positive
voltage on pin 2 with respect to pin 3 of low-impedance output,

on tip with respect to ground of aux output.

and

EC1 Transmitter with W

Positive
WA310
spect

voltage applied to tip of W

XLR connector results in positive voltage at pin 2 with re

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

ground of aux output.

Dimensions (excluding antenna and belt clip

82.6 mm High x 63.5 mm
(31/

in.

x 21/

4

in. x 11/32 in.)

2.

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
Conforms to European Union Directives, eligible to bear CE
marking;

meets European EMC Immunity

082-1, 1992); ESD (IEC 801-2); RF radiated (IEC 801-3); EFT

801-4).

(IEC

EC2

TRANSMITTER SPECIFICA

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

on

voltage
on

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

tip (with respect to ground) of unbalanced output, and

Audio Gain Adjustment Range

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

Antenna

Removable,
keyed

external 1/4-wave helical antenna (antenna is color-

to transmitter frequency range).

Power Requirements

Battery T

ype: 9 volt a

lkalin

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

Overall Dimensions

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

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)
41

1.1 g(14.5 oz )

337.2 g (1

337.2 g (1

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
082-1, 1992); ESD (IEC 801-2); RF radiated (IEC 801-3); EFT
(IEC

801-4).

ireless Microphones:

A302 or W

A310 Cable:

A302 phone plug or to pin 3 of

Wide x 26.2 mm Deep

Requirements (EN 50

TIONS

e (

Duracel

l M

N160

4 o

5

Battery

1.9 oz)

1.9 oz)

W

ith Battery

453.6 g (16.0 oz)

382.7 g (13.4 oz)

382.7 g (13.4 oz)

Requirements (EN 50

)

/

16

in

8

1)

r e

quivalent)

in

x 2 in.)

.

x 2 in.)

.

-

1997,

Shure Brothers Incorporated

Page

3 of 4

Printed in U.S.A.

EC WIRELESS MICROPHONE SYSTEMS

EC2 Polar Patterns

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

, symmetrical about axis

EC

2 F

requenc

Frequency

d

istanc

a

B
d

N

I
E

NS
PO

S
E
R

E
V

I
T
A
L
E
R

B
d

N

I
E

NS
PO

S
E
R

E
V

I
T
A
L
E
R

r

espons

e of 0.6 m

3

1cm(

/8in.)

.6 m(2ft)

3

1cm(

/8in.)

.6 m(2ft)

Specification Sheet

y R

esponse

e c

urve

s b

elo

2 f

eet

) from t

w were m

eters (

FREQUENCY IN HERTZ

MODEL EC2//58

easured in a free f

he sound source.

iel

d a

t

B
d

N

I
E

NS
PO

S
E
R

E
V

I
T
A
L
E
R

B
d

N

I
E

NS
PO

S
E
R

E
V

I
T
A
L
E
R

FREQUENCY IN HERTZ

MODEL EC2/BETA58

3

1cm(

/8in.)

.6 m(2ft)

FREQUENCY IN HERTZ

EC2/87

3

1cm(

/8in.)

.6 m(2ft)

1997,

Shure Brothers Incorporated

TYPICAL POLAR PATTERNS

Page

4 of 4

FREQUENCY IN HERTZ

EC/BETA 87

TYPICAL FREQUENCY RESPONSE CURVES

Printed in U.S.A.