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4

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

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

EC1 BATTERY INSTALLATION

FIGURE 4

9V ALKALINE

BATTERY

PRESS HERE AND SLIDE

COVER BACK TO OPEN

Checking the EC1 Transmitter Battery

To check the battery in the EC1 transmitter, turn the transmit-

ter POWER switch on and observe the Battery Test light. It
should be bright and clearly visible, indicating adequate voltage.
If the light is dim, the battery voltage has dropped below 6.5 volts
and the battery should be replaced (9V alkaline or recharged Ni-
Cad only). If the light does not turn on, the transmitter will not op-
erate and the battery should be replaced.
Microphone Connections

1.  Plug the lavalier microphone cable or the WA302 instrument

adapter cable into the 4-pin connector on the EC1.

2.  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 WA302 instru-
ment adapter cable into you guitar or instrument.

2

4

EC1 TRANSMITTER CABLE CONNECTIONS

FIGURE 5

1

4

3

2

3

1

3 4 1

2

1

3 2

BLACK

TIP

SLEEVE

EC1 TRANSMITTER

INPUT CONNECTOR

1 – GROUND

2 – +5 VDC

3 – AUDIO (FOR DYNAMIC 
     MICS OR INSTRUMENTS)

4 – 20K TO GROUND (MATING
     PLUG SHORTS TO PIN 3
    FOR CONDENSER MICS)

WA310 MICROPHONE

ADAPTER CABLE

WA302 INSTRUMENT

ADAPTER CABLE

910K

Any Shure wireless lavalier microphone or accessory cable

with a Switchcraft TA4F type 4-pin (female) connector plugs di-
rectly into the transmitter input connector. Many other condenser
microphones will operate using the transmitter’s reg5 V
DC power on pin 2. Low impedance dynamic or ribbon micro-
phones with pin 2 output can be used with the optional WA310
adapter cable. See Figure 5.
NOTE: Phantom powered condenser microphones will not nor-
mally operate with the EC1/WA310 transmitter configuration.

EC1 Audio Gain Adjustment

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

vide a typical level. However, for SPL applications such as loud
singing or loud musical 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 sig-
nal is present.

If necessary, adjust the audio gain on the EC1 as follows:

1.  For High SPL Applications: Using the supplied screwdriver,

turn the MIC LEVEL control on the transmitter counterclock-
wise while the vocalist is speaking or an instrument is being
played. See Figure 6.

2.  For Low SPL Applications: Using the supplied screwdriver,

turn the MIC LEVEL control on the transmitter clockwise until
the red AUDIO PEAK indicator on the receiver flickers occa-
sionally while the microphone is in use. Refer to Figure 6.

SCREWDRIVER

(SUPPLIED)

EC1 BODY-PACK

TRANSMITTER

EC1 AUDIO GAIN ADJUSTMENT

FIGURE 6

LOW

HIGH

AUDIO LEVEL CONTROL

NOTE: When the EC4 receiver is ON and the EC1 or EC2 trans-
mitter is OFF, the audio mixer gain should be turned down, since
the receiver can receive signals from other sources. If the mixer
controls are not accessible, turn the receiver volume down when
the transmitter is not in use to prevent unwanted signal pickup.
The transmitter may also be left on (muted) to guard against out-
side interference. See the Squelch Control adjustment paragraph.

EC2 TRANSMITTER SETUP

EC2 Transmitter Battery Installation

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

OFF position.

2.  While holding the upper part of the transmitter, unscrew the

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

Á

Á

9V ALKALINE

BATTERY

(INSERT “+” SIDE

FIRST

EC2 BATTERY INSTALLATION

FIGURE 7

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AND  LOWER

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GRASP

MICROPHONE

HERE

Summary of Contents for EC Series

Page 1: ...ter It features smooth frequency response low distortion 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 de signed for use with electric guitar and other elect...

Page 2: ... Switch Turns transmitter power on and off 6 Battery Test Light Illuminates when the POWER switch is turned on and a good battery is installed When this light does not illuminate the transmitter will not work 7 Battery Compartment Unscrewing the handle and sliding it downward exposes the battery compartment and the audio GAIN Switch 9 8 Frequency Identification Label Located inside the battery com...

Page 3: ... 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 microphone level EC4 receiver output or 1 4 inch 2 cir cuit phone plug on one end for unbalanced auxiliary level EC4 receiver output and a mixer input connector on the other EC4 RECEIVER SETUP AND CONNECTIONS 1 Place the receiver in its operating...

Page 4: ...ignal 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 sig nal is present If necessary adjust the audio gain on the EC1 as follows 1 For High SPL Applications Using the supplied screwdriver turn the MIC LEVEL control on the transmitter counterclock wise whi...

Page 5: ...udio feedback IMPORTANT Every wireless microphone installation is unique and can present a variety of problems Never attempt a live per formance without a walkthrough first If major changes equip ment scenery etc have been made since the walk through check the wireless microphone operation again as close to performance time as possible EC4 Receiver Squelch Control Adjustment The SQUELCH control is...

Page 6: ...ove them closer to the transmitter Optional 1 2 wave high gain antennas WA380 and antenna cable kit WA420 are available SQUELCH control may be set too low Readjust as necessary 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 Working Range average conditions 600 feet 182 8 m at 50 mW Modulation 15...

Page 7: ...32 in 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 DD4L11 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 TRANSMITTER RF Power Output 50 mW maximum Modulation FM 60K0F3E 15 kHz deviation 62 µs pre em...

Page 8: ... UHF adapter and wall mount bracket INFORMATION TO THE USER The EC4 Receiver complies with Part 15 of the FCC Rules Operation is subject to the condition that this device does not cause harmful interference The EC4 Receiver has been tested and found to comply with the lim its of Part 15 of the FCC Rules These limits are designed to provide rea sonable protection against harmful interference in a r...

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