Electro-Voice MS3000 User Manual

Page 7

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MS3000 OWNERS MANUAL

page 7

These cables are available as accessories (see

accessories listing).

4. If multiple wireless systems are being used, a

multi-coupler will minimize antenna interference.

A multi-coupler has one set of antennas and

distributes RF signal to multiple systems. The

Electro-Voice A/P4X4 will supply antenna signal

and DC power to 4 systems, eliminating 3 exter-

nal power supplies and 6 antennas (Figure 12).

COMPATIBILITY
The receiver and transmitter must be tuned to the

same frequency in order to operate together as a

system. Mixing brands of wireless components,

even if units have the same frequency, will not work

due to differences in companding circuits.
If two or more MS3000 and/or other VHF/UHF wire-

less systems are being used in the same location,

proper frequency coordination is necessary to avoid

interference. Frequency mixing and spacing must

be factored along with local TV stations to deter-

mine if conflicts will result from a specific group.

Figure 12

Contact your dealer or Electro-Voice for frequency-

selection assistance if you are planning to add more

wireless systems to be operated simultaneously in

the same location.
POTENTIAL SOURCES OF INTERFERENCE
There are many potential sources of interference for

your wireless system. Any electronic component

that contains digital circuitry including digital signal

processors (reverb/multi-effects units), electronic

keyboards, digital lighting controllers, CD players

and computers all emit rf energy that can adversely

affect the performance of your wireless system. It is

always best to place your receiver as far away from

these devices as possible to minimize this potential

source of interference.
SYSTEM SPECIFICATIONS STANDARD
FREQUENCIES (MHz)

690.100; 690.500; 691.200; 692.100; 694.200; 695.000

695.350; 695.500; 696.425; 696.725; 698.200; 699.800

700.200; 702.200; 702.600; 703.250; 704.250; 706.250

707.460; 707.850; 708.600; 709.150; 710.350; 712.250

713.900; 714.450; 715.350; 717.750; 719.050; 720.600

MR3000 RECEIVER

Frequency Range

690 – 725 MHz

RF Stability

0.005% or better

Modulation Type

FM, 40 kHz nominal

Type

Double Conversion, 65.75 MHz and

10.7 MHz I.F.

IF Bandwidth

230 kHz at –3dB points

Image Rejection

65 dB or better

Squelch

Amplitude adjustable

Audio Outputs:

Mic Level:

-20 dBV at 600 ohms

Line Level:

0.775 V rms at 100K ohms (max)

Signal-to-Noise Ratio

104 dB

Receiver Sensitivity:

Less than 0.8 uV for 12 dB SINAD

FCC Compliance:

Notification, Part 15

FCC Identification:

B5DR307

Diversity:

Continuous Secure-Phase

tm

Diversity to maximize signal

strength

Supplied Accessories:

Two ¼-wave antennas; rack mount adapters (1 short, 1

mid, 1 long); gain adjustment screwdriver; AC power

supply (120 Volt/60 Hz or 230 Volt/50 Hz); owner’s

manual.

Size (HxWxD):

1.75 in x 7.5 in x 7.75 in without antennas

(31.75 x 190.5 x 196.85 mm)

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