Shure Brothers Incorporated
222 Hartrey Avenue
Evanston IL 60202-3696 U.S.A.
EC Series Wireless Systems User Guide
EC SERIES WIRELESS MICROPHONE SYSTEMS
GENERALTransmitter It features smooth frequency response, low distortion.
and low RF susceptibility. The WL93 can also be used as a pickup
The Shure EC Series wireless microphone systems are confi-for acoustic instruments such as guitar, woodwinds and strings.
gurable, single-channel systems operating in the VHF band be-
tween 169.445 MHz and 216.100 MHz. All EC systems featureThe WL84 supercardioid lavalier is also available.
state-of-the-art, phase-locked loop (PLL) digital frequency controlWA302 Instrument Adapter Cable: The WA302 instrument
adapter cable plugs into the EC1 Body-Pack Transmitter. It is de-
to generate an exceptionally clean, low-noise signal. This built-in
frequency control makes EC systems ideal for installations wheresigned for use with electric guitar and other electric instruments.
multiple wireless systems are to be used. The PLL frequency con-EC4 Diversity Receiver. The EC4 features Shure's exclusive
trol circuit is also programmable, so any factory-authorized techni-MARCAD ) (MAximum Ratio Combining Audio Diversity) circuitry.
cian can change the carrier frequency of any EC transmitter and re-With MARCAD, the EC4 constantly monitors signals on each of
ceiver.two receivers and combines them when both signals are usable.
The result is increased RF gain, improved reception, and excep-
SYSTEM COMPONENTStional freedom from dropouts. The EC4 also uses PLL frequency
Each EC wireless system consists of a handheld EC2control to lock onto a precise carrier frequency, reducing the possi-
bility of interference from local sources.
Microphone-Transmitter or an EC1 Body-Pack Transmitter with a
lavalier microphone or a WA302 intrument adapter cable, and anPERFORMANCE CHARACTERISTICS
EC4 Receiver.Operating Frequencies. Shure EC wireless systems are con-
figured to operate interference-free on one of 28 standard frequen-
EC2 Hand-Held Microphone-Transmitter The EC2 is a.
hand-held microphone with a built-in transmitter. It features PLLcies. Frequency changes can be made by factory authorized ser-
frequency control, an external antenna for increased range andvice personnel.
Multiple System Installations.Up to 15 EC Series systems
freedom from dropouts, superb frequency response, extendedcan be operated simultaneousy iln a single installation without in-
dynamic range, an LED status indicator, rugged metal handle, and
heavy-duty grille with built-in pop filter. The EC2 is supplied in fourtermodulation problems. However, each system must operate at
models:a different frequency.
Directional Sensitivity. The EC Series transmitters are omnidi-
wEC2/58, which includes the world-famous Shure SM58 cardioid
dynamic microphone.rectional in the horizontal plane; that is, they radiate equal amounts
of RF energy in all directions. Similarly, the receiver antenna is
wEC2/87, which includes Shure's SM87 supercardioid condenserequally sensitive in all directions in the horizontal plane when
microphone.mounted vertically.
wEC2/Beta 58, which features Shure's premium supercardioid dy-Operating Range.The recommended maximum operating
range for any EC system is 600 feet (182.8 meters), although suc-
namic Beta 58 vocal microphone.cessful operation at up to 1000 feet (300 meters) is often accom-
wEC2/Beta 87, which features Shure's premium supercardioidplished. Conditions at the installation site (reflective surfaces, ob-
condenser Beta 87 vocal microphone.stacles, radio interference, etc.) will ultimately dictate the system's
operating range.
EC1 Body-Pack Transmitter The EC1 features PLL frequency.Power Requirements. The EC4 receiver can be operated from
control, extended dynamic range, a universal input, a battery test
light, noiseless muting, and a rugged case.any filtered 12.5 to 18 Vdc, 200 mA power source. A separate 120
Vac adapter is included with each system. The EC2 and EC1 trans-
WL93A Micro-Lavalier Microphone: The WL93A is anmitters operate on most 9 volt alkaline batteries. Battery life de-
omnidirectional micro-lavalier electret condenser pendsmicr on the type and brand of battery (Duracell MN1604 recomophone-
that plugs into the microphone input onh te EC1 Body-Packmended).
1996, Shure Brothers Inc.
27A8435 (PA)Printed in U.S.A. |