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We have tried this system and concluded BM Guitar Wireless System is the best wireless in its price range.
Receiver is able to operate by 2 x AA battery or supplied adaptor.
Transmitter will be using 1 x AAA battery and can last up 8 hours of usage.
Operating distance is up to 100M.
Comes with hard carrying case!
Importantly, this wireless system is extremely low noise and responsive.
It can even responses to your pick attack as well.
You will be able to switch to 16 different channels in the case that your friends are using the same model as well.
Receiver
Receiving Frequencies: 460MHz-990MHz
Modulation Type: F3E
OSC (Oscillator) System: PLL circuit
Operating Distance: 40m (receiver in sight)
De-dmphasis: 50u/sec
Receiving Sensitivity: Sina>30dB 10dBuV
Squelch Sensitivity: 1 7dBuV+4dBuV
Signal/Noise Ratio: (flKHz=lmV)<0.8%
Audio Output Level: (f40KHz) 400Mv
Audio Frequency Response: 50Hz-20KHz+3dB
THD: (flKHz)<0.8%
Output Impedance: 5K-10K ohms
Power: DC9V/3V AA (1.5Vx2 Battery)
Current Consumption: 9V/60mA 3V/100mA
Dual l/4wave length rod antennas Antenna: Dual l/4wave length rod antennas
Controls: Audio level volume channel select switch, ACT key
Display: ACT SEND (white), Power (red)
Low power (orange), single (green)
Transmitter
RF Output Power: 10dB±1dB
Spurious: -50dBm
Modulation: 40K
Pre-emphasis: 50usec
Maximum Input Level: +2dBV
Input Impedance: 20K ohms
THD: <0.8% (1KHz 100mV)
Audio Frequency Response: 50Hz-20KHz+3dB
Operating Power Voltage: 1.5V Tpical l.OV Minimum 2V MAX
Current Consumption: 80mA
Battery Life: 8 Hours (AAA Side battery)
Antenna: Permanently attached 11 4 wave length wire
Controls: Power Switch, 15dB Pad Switch
Indicators: Power On (LED Flash)
Low Battery (LED On when battery less than lV)
ACT (LED Flash)
