Lectrosonics UMC195d User Manual download pdf (Page 3)

Rack Mount Multi-Channel Systems

GENERAL TECHNICAL DESCRIPTION

The Multi-Channel Wireless Systems consist of two sub-systems; the frame which contains the receivers and the

receiver mounting hardware, and the RF/power distribution module.

The RF/power distribution module is the heart of the Multi-Channel Wireless System. Selective filtering in the front

end of the RF section attenuates out-of-band RF signals preventing intermodulation and front end overload. Follow-

ing the filters is a low noise, low gain RF amplifier designed to evenly compensate for splitter losses in the stage that

follows. A precision splitter/isolator divides the RF signal into four isolated signals preventing spurious RF coupling

between receivers. The splitter/isolator is termination independent which prevents mismatched or disconnected RF

outputs from affecting the other receivers.

Power is supplied to the RF/power distribution module from an external DC power supply module. This keeps AC

hum problems to a minimum. All power circuits are protected by internal auto-reset fuses in the RF/power distribu-

tion module. Should the power to one receiver fail, the others will continue to operate.

RF FILTERING & DISTRIBUTION

POWER SUPPLY & DISTRIBUTION

POLYFUSES

REGULATOR

FRONT END

FILTERS

AMP

SPLITTER

ISOLATOR

SPLITTER

ISOLATOR

RF to

Receivers

12V DC

Power to

Receivers

AMP

Diversity RF/Power Distribution Module

POWER

SUPPLY

ANTENNA

Rio Rancho, NM – USA

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Lectrosonics UMC195d User Manual Page 3