2. GENERAL DESCRIPTION
The wireless microphone WM-4300 is of lavalier type designed for use on UHF band. It accommodates the
supplied electret condenser microphone unit with a cardioid pick-up pattern and is suitable for vocal and
speech reinforcement applications.
The built-in circuitry is so designed to minimize the influence from ambient noise.
3. FEATURES
• One frequency can be selected from 64 operating frequencies (4 banks x 16 channels) of 64 frequencies of
690 – 865 MHz.
• An optimized PLL-synthesizer minimizes the oscillation frequency drift resulting from the ambient
temperature or voltage fluctuation.
• Audio level control adjusts the microphone sensitivity.
• Battery lamp indicates battery consumption to prevent the unit from malfunctioning when the battery level
remarkably decreases.
• Compact size and high reliability
• A commercial microphone unit of the type equivalent to the supplied one can also be used.
4. HANDLING PRECAUTIONS
• Do not expose the unit to rain or an environment where it may be splashed by water or other liquids, as
doing so may result in unit failure.
• Never open nor remove the unit case to modify the unit. Refer all servicing to your nearest TOA dealer.
• Take care not to drop the unit onto the floor nor bump it against a hard object as the unit could fail.
• Do not place the unit in locations of high temperature (ex. in a car parked in summer) or high humidity as the
unit could fail.
• Do not use the unit in locations where it is exposed to seawater.
• To clean, use a dry cloth. When the unit gets very dirty, wipe lightly with a cloth damped in a dilute neutral
cleanser, then wipe with a dry cloth. Never use benzine, thinner, or chemically-treated cleaning towel.
• Avoid using a mobile telephone near the wireless microphone in use. Noise could be picked up.
5. NOMENCLATURE
[ Main unit ]
[ Microphone unit ]
Audio level control
Channel select switch
Bank select switch
Power ON/OFF
switch (push lock)
Power/Battery lamp
(Orange LED)
Microphone input connector
62
32
23.5
102
142
Crip
Windscreen
Plug (TA-4F type)
Clip
(Rotates 360
°
.)
Unit: mm
Tie-clip attachment
This part
rotates 360
°
.
