TOA WM-4210-4220 Wireless Microphone User Manual WM 4220

TOA Corporation Wireless Microphone WM 4220

Contents

4220 Manual

119. OPERATING INSTRUCTIONSTOA WIRELESS MICROPHONE model WM-4220General descriptionThe WM-4220 hand held wireless microphone has been manufactured for use with a UHF system. Itincorporates a cardioid pick-up pattern and has been designed for use in speech reinforcement applications.The built-in compressor -expander circuit minimizes the influence from ambient noise.Battery insertion1)Hold the microphone body and rotate the microphone grip counterclockwise. The microphone grip isdesigned to be completely removed from the body. 2)The battery compartment accepts one 6LR61 battery. Please insert the battery according to the instructionsattached to the inside of the battery compartment. Please observe correct polarity when inserting the battery.3)Replace the microphone grip by sliding and relightening it clockwise .Operating the microphone 1)Make sure that the receiver and the wireless microphone are of the same channel(frequency).2)If they are not identical in channel(frequency),you have to adjust the bank and channel switches.3)Place the microphone ON/OFF switch in the ON position. The orange LED indicates the circuit is active.4)Make sure to shift the ON/OFF switch back to the off position after using the WM-4220 wireless microphone.Battery replacement1)A brand-new battery will provide the power for enough to operate the unite continuously for 10 hours .2)As long as the battery has sufficient power for the microphone to function properly, the orange LED will light.When the orange LED starts to fade and then flashing, replace it with a new one.Operational Hints(1) The microphone's service distance is 3-150 m. When the microphone user moves in a facility, signaldropouts (momentary losses of signal reception) may be encountered. These dropouts are caused by thebuilding's architectural designs or materials which block the travel of or reflect the radio signal. If thisoccurs, the user needs to change locations for better signal reception. (2) The proper operation of your wireless system may be interfered with by other system operating on thesame frequency. In such cases, change the operating frequency of your system. It is recommended thatthe Scan function (of the WT-4800) be used to avoid the frequency interference, which always searchesand shows idle frequencies.(3) |Should you have any questions regarding the use or availability of TOA wireless products, please contactyour local TOA dealer. Audio level This wireless microphone is designed to satisfy the most of the popular presenters. The audio level is set at125dBspl .
12Model WM-4220Carrier Frequency 16 frequencies (Selectable from 690 MHz and 806 MHz)Frequency Stability Less than 0.005%Oscillator Crystal-controlled PLL-synthesizer Modulation System Reactance modulationRF Carrier Power Less than 50mWEffective Radiated Power Less than 10mWMaximum Input Level 125dBsplMaximum Deviation ±40 kHz Microphone Element Unidirectional erectlet condenser microphoneFrequency Response 100 to 15000 HzPre-emphasis 50 µsecAntenna Whip antenna (Internal)Battery Type 6LR61(Alkaline 9V)Battery Life More than 10 hoursCurrent Consumption 50mA TYP.(at 9.0V)Ambient Temperature 14°F to 122°F (–10°C to 50°C)Tone Frequency 32.768 kHzControls Power ON/OFF, Bank and Channel select, Battery Checker, illegal ChannelColor BlackDimensions ø”1.5" X 8.76"(ø38 X 222.5mm)Weight 0.594 lbs.(250 g) with batterySpecificationsFCC license requirement FCCThis system requires a FCC license for legal operation. Obtain the application form FCC at the address listedon the form and mail it to the FCC after completing it, following the instructions below. When the application isapproved, the FCC will mail the license to you.

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