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Microphone

·  Using ultra high frequency range, less interference and more reliable compare to traditional VHF.
·  Within 50MHz frequency range, with 250KHz channel separation, it can provide up t0 200 selections for channel,making it convenient to use with multiple machines at the same time, avoiding interference.
·  Auto matching frequency between transmitter and receiver.
·  Signal strength can be adjusted for longer range or shorter range to save battery.

Detailed Features Applications
receiver
Receiving method             super inner difference double
                                         frequency conversion
The first intermediate frequency       110.6MHz
Second IF                                         10.7MHz
Sensitivity                         -105dBM(20dB SINAD)
Squelch mode Noise         field strength, digital pilot
Keyboard lock                                               Yes
Engineering lock                                 switch times
                             (automatically once in 24 hours)
transmitter
RF frequency accuracy                                 +5PPM
Nominal frequency deviation            25KHz(1 KHz 100mV)
Maximum frequency deviation          45KHz
Harmonics                                        -50dBc
Transmitting power                           20mW
Working electric wave                        < 120mA
Power supply mode                            AA 1.5V*2
Smart sensor                   accelerometer + gyroscope
 
 
system
Use distance                       100 meters (no obstacles)
Frequency range                 640-690MHz
RF generation method        PLL
Modulation method            FM(F3E)
RF bandwidth                      50MHz
Number of frequencies        200 (250KHz interval)
Signal-to-noise ratio            > 98dB
Dynamic range                    > 100dB
Distortion                            < 0.5%
Audio Frequency Response                   50Hz-18KHz
Operating temperature                         -180C-500C
Frequency synchronization method      Infrared frequency pairing

Microphone
·  Using ultra high frequency range, less interference and more reliable compare to traditional VHF.
·  Within 50MHz frequency range, with 250KHz channel separation, it can provide up t0 200 selections for channel,making it convenient to use with multiple machines at the same time, avoiding interference.
·  Auto matching frequency between transmitter and receiver.
·  Signal strength can be adjusted for longer range or shorter range to save battery.

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