Toa WM-4200 User Manual
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11. SPECIFICATIONS
Note: The design and specifications are subject to change without notice for improvement.
• Accessories
Microphone holder (with stand adapter) ............... 1
Screwdriver (for setting) ....................................... 1
Storage case ........................................................ 1
Microphone Element
Dynamic type, Cardioid pattern
Emission F3E
Frequency Range
690 – 865 MHz, UHF
Selectable Channel
64 frequencies (the number of channels may differ from country to country)
RF Carrier Power
Less than 50 mW
Tone Frequency
32.768 kHz
Maximum Input Level
145 dB SPL (Audio level adjustment: Minimum)
Maximum Deviation
±40 kHz
Audio Frequency Response
70 – 15,000 Hz (with WT-4800)
Dynamic Range
More than 110 dB (with WT-4800)
Battery
6LR61 (9 V x 1)
Battery Life
More than 10 hours (alkaline)
Indicator
Power/Battery lamp (orange LED)
Antenna
1/4
λ herical type
Operating Temperature
–10 to +50°C
Finish
Resin, rubber coating, dark gray
Dimensions
ø52.2 x 279.4 mm (antenna length included)
Weight
270 g (with battery)
10. AUDIO LEVEL ADJUSTMENT (SENSITIVITY CONTROL)
The microphone sensitivity is variable within a range of 15 dB.
To change the factory-preset level, follow the procedures below.
Step 1. Holding the microphone body, rotate the microphone grip
counterclockwise to remove it.
Step 2. Switch on the power of the tuner and microphone.
Step 3. Adjust the audio level control using a small screwdriver.
The microphone sensitivity increases as the control is rotated
clockwise, and decrease as rotated counterclockwise.
(Maximum input level: 130 dB SPL for maximum sensitivity and
145 dB SPL for minimum sensitivity).
Step 4. Adjust the corresponding tuner's volume control so that its knob points to the 2 o'clock position. When
the tuner's AF PEAK indicator remains lit, readjust the microphone's audio level control to the position
that causes the indicator to flash when the tuner output level reaches its peak. The AF PEAK indicator
lights when the output level reaches the point of about 3 dB below the clipping level.
Note: The AF PEAK indicator operates in response to the volume control position. However, the AF
LEVEL indicator (on the WT-4800) indicates the level regardless of the volume control setting.
Step 5. Replace the microphone grip.
Audio level control
LO
LEVEL
H I
License requirement
Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.