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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
Maximum input level
–16 dBu (with 0 dB attenuator)
Audio attenuator adjustment range (pad)
0 to 21 dB (3 dB steps)
Input impedance
10 k
Ω
or more
Frequency response
20 Hz to 22 kHz
General
Operating voltage
3 V DC, with two LR6 (AA)
alkaline batteries
Battery life
Continuous operating time
5 hours (at 25 °C (77 °F), 10-mW
output using Sony LR6 (AA)-
size alkaline batteries with the
To prevent electromagnetic
interference from portable
communication devices
The use of portable telephones and
other communication devices near
the DWM-02 may result in
malfunction and interference with
audio signals. It is recommended that
portable communication devices near
the DWM-02 be turned off.