Wireless Microphone MK-3300

Operating distance ≥50 meters (actual distance is related to the surrounding environment)
Frequency range 640-690MHz
RF generation method PLL frequency synthesizer
RF bandwidth 30Mhz – 50MHz
RF frequency accuracy +/-20ppm＜10kHz
Number of channels 216 channels, the same for left and right channels
Operating temperature -10 degrees C ~ 50 degrees C
Audio frequency response 45Hz-18kHz (circuit part)
SNR >90dB
Total harmonic distortion of the system ＜1.8%1KHz (at 300mV output)
Receiving method DQPSK mode
Diversity reception True diversity reception (dual channel 2 antennas 2 high amplifiers)
Receiver sensitivity -95dBm(20dB SINAD)
Variation harmonic waveform <0.8%1KHz (output 300mV)
LCD display method
Power supply 12V 500-1000mA (depending on model)
Audio output method XLR/balanced line/2-way channel mixed output
Dynamic range >90dB
Nominal frequency deviation 25KHz
Harmonic -45dBc
Output power 3mW/10mW
Current consumption <180mA/3V
Power supply AA1.5Vx2
Usage time About 6 hours (related to battery quality)
Power conversion method Capacitive coil, moving, depending on model
Recording mode Cardioid, ultrasonic, depending on model
Receiver sensitivity ＜-55dB±3dB(0dB=1V/Par@ 1KHz)
Maximum sound pressure level >110dB SP