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To prevent electromagnetic
interference from portable
communication devices
The use of portable telephones and
other communication devices near
the DWM-01 may result in
malfunction and interference with
audio signals. It is recommended that
portable communication devices near
the DWM-01 be turned off.
30
Specifications
Specifications
Transmitting section
Oscillator type
Crystal-controlled PLL synthesizer
RF power output
1 mW/10 mW/50 mW (e.r.p)
selectable
Antenna type
Helical antenna
Occupied RF bandwidth
192 kHz or less
Audio delay
1.5 ms
Allowable deviation of transmission
frequency
±6.5 ppm
Type of emission
G1E or G1D
Modulation method
π/4 Shift QPSK
Audio section
Microphone type
Dynamic type: unidirectional
(Super cardioid)
Electret condenser type:
unidirectional (Cardioid)
Maximum input level
151 dBSPL (with 21 dB attenuator)
Audio attenuator adjustment range (pad)
0 to 21 dB (3 dB steps)
Frequency response
Dynamic type: 60 Hz to 18,000 Hz
Electret condenser type: 60 Hz to
20,000 Hz
General
Operating voltage
3 V DC, with two LR6 (AA)
alkaline batteries
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