Mascot Electric Co. Ltd. DX-837 用户手册

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  Operating on UHF band frequency range 790~806MHz with PLL synthesized control.

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  PLL (Phase Locked Loop) synthesized wireless microphone system with 16 switchable frequencies makes it

easy to choose non-interference channels.

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  DX-837 wireless desktop microphone is well suitable for broadcasting, meetings & speech in public areas.

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  DX-837 is equipped with slim & flexible gooseneck, beautiful & rugged microphone with multi-function panel.

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  DX-837 equipped with professional uni-directional electret condenser unit to avoid sounds coming from the

sides & rear of the microphone to perform high sensitivity, wide-range frequency response, bright & crisp sound
reproduction.

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  The mic features Hi, Normal or Low audio frequency selector, on/off and volume control to control the

microphone signal output.  Special circuitry design to eliminate “ pop” audio on/off switch.

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  Operation on UHF band equipped with high sensitivity, reliable receiver to ensure the high quality RF & AF

reproduction.

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  The service area is about 50~100M.

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  Powered by 2 x UM-3 batteries.  Over 7 hours continuous operation.  With one LED to indicate battery

strength.  When the LED turns from green to red color, please replace a new battery.

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  This microphone has LINE IN audio jack to extend the service area and sensitivity by connecting various audio

resources or another desktop microphone.

Frequency Range … … … … … … … … . UHF 790~806MHz

RF Power Output.. … … … … … … … … 30mW max.

Oscillation Mode … … … … … .. … … …

PLL Synthesized, 16-CH

Frequency Stability … … … … … … … ..

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0.005% with quartz controlled

Maximum Deviation … … … … … … … ..

±

15KHz with limiting compressor

Suprious Emission … … . … … … … … .. Less than –43dB below carrier frequency

T.H.D.  … … … … … . … … . … … … … … .. Less than 0.5% (at 1KHz)

Power Supply … … … … … … .. … … … . UM-3(AA size)x2

Battery Life … .. … … … … … … … … … .. about 7~8 hours continuous operation.

Tone Key … .. … … … … … … … … … … .. 32KHz tone key control

Mic Unit … … … … … … … … … … … … .. Uni-directional condenser type

LED Indicator … . … … … … … … … … … Power ON-OFF & Low battery & TALK indicator

Dimensions(Gooseneck) … … … … … . 25

φ

x340mm

Base(LxWxH) … … … … … … … … … …

151mmx125mmx40mm

FRONT PANEL

UHF PLL SYNTHESIZED TRANSMITTER

H I

OFF

LOW

ON

OFF
PWR

PUSH TO TALK/PUSH OFF SWITCH

FILTER SELECTOR TO CHOOSE HI FREQUENCY

POWER ON/OFF AND VOLUME CONTROL

OR LOW FREQUENCY

TALK INDICATOR

POWER INDICATOR