Mascot Electric DX-837 Wireless Microphone User Manual M1215915
Mascot Electric Co., Ltd. Wireless Microphone M1215915
Users Manual
DX-837 UHF BAND PLL SYNTHESIZED
WIRELESS GOOSENECK MICROPHONE
FEATURES
∗ Operating on UHF band frequency range 790~806MHz with PLL synthesized control.
∗ PLL (Phase Locked Loop) synthesized wireless microphone system with 16 switchable frequencies makes it
easy to choose non-interference channels.
∗ DX-837 wireless desktop microphone is well suitable for broadcasting, meetings & speech in public areas.
∗ DX-837 is equipped with slim & flexible gooseneck, beautiful & rugged microphone with multi-function panel.
∗ 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.
∗ 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.
∗ Operation on UHF band equipped with high sensitivity, reliable receiver to ensure the high quality RF & AF
reproduction.
∗ The service area is about 50~100M.
∗ 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.
∗ This microphone has LINE IN audio jack to extend the service area and sensitivity by connecting various audio
resources or another desktop microphone.
SPECIFICATIONS
Frequency Range … … … … … … … … .
UHF 790~806MHz
RF Power Output.. … … … … … … … …
30mW max.
Oscillation Mode … … … … … .. ………
PLL Synthesized, 16-CH
Frequency Stability … … … … … … … ..
±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) … … … … … .
25φx340mm
Base(LxWxH) … … … … … … … … … …
151mmx125mmx40mm
NAME OF COMPONENT
FRONT PANEL
UHF PLL SYNTHESIZED TRANSMITTER
HI
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
REAR PANEL
4P CONNECTOR
CONNECTING DIAGRAM
CHANNEL SELECTOR
OPERATION
1. Push to open the battery cover under the base.
2. Insert two UM-3 batteries into the battery compartment according to polarity (+) and (-) indication marked on the
battery housing.
3. Fit battery cover back.
4. Turn the volume with power-on-off switch to “ON” firstly, the Power indicator will be lighted in green to indicate
the carrier frequency is sent out. Push TALK button to the second step, the TALK indicator will be lighted to
indicate the microphone is operating.
5. Use the Volume control to set the output level and the Filter Selector to choose Hi, Low or Normal audio
frequencies as you like.
6. When you do not want to talk, push the TALK button again and the TALK indicator will fade away.
7. Turn the power button to “OFF” when mic is not used, and remove the battery if not used for a long time. This
will prevent from the damage that a defective “leaking” battery may cause.
8. Turn the power "ON", the power indicator lighted in green means that power supply is normal and the power
indicator turned to red means that the battery is in need of replacement.
CONNECTING DIAGRAM
WIRELESS GOOSENECK MICROPHONE WITH WIRELESS RECEIVER
DX-837 WIRELESS GOOSENECK MICROPHONE AND ED-337
DX-837
ED-337
CONDENSER GOOSENECK MICROPHONE
WITH WIRELESS RECEIVER
LINE IN AUDIO JACK TO CONNECT VARIOUS RESOURCES
OR ANOTHER DESKTOP MIC SUCH AS ED-337
2
3
1
4
SHIELDED CABLE
SIGNAL
GROUND
CH 1
CH
2CH
3
CH 4
CH 5
CH
6CH 7CH 8
CH 9CH10 CH 11 CH 12
CH 13 CH14
CH
15
CH
16
CH1 CH2 CH3 CH4
790.375
791.125
792.125
793.250
CH5 CH6 CH7 CH8
794.250
795.125
796.250
797.375
CH9
CH10
CH11
CH12
798.375
799.875
800.875
801.625
CH13
CH14
CH15
CH16
802.750 803.875 804.750 805.375
MHz