NWE Radio Intercom Power Amplifier Board Kit RA Series M577** Amp
The supply voltage of the module will affect the transmit power, the lower the voltage, the smaller the transmit power in the operating voltage range.
Antenna has a great impact on the communication distance, please use the matching antenna and the correct installation.
Baby Specifications:
Board maximum withstand power: 70W
Input power: 1-5W
Transmit frequency: (depending on the model)
Output power: Depending on the model of the installed module
Power supply voltage: 10-13.8V
Standby current: about 10-20mA
Minimum size: 62 * 94mm
note :
On the voltage adjustment of the different series of modules, RA series of modules to the second pin voltage is 2.8-4V, if more than 4V may cause self-excited or burned modules, the user must pay attention to the use of RA module
M series module second pin voltage is 10-13.8V, if less than 10V quality may not work.
1, the first board fixed to the radiator (module first not welding), and then connected to the hands of Taiwan and then board the required 12V power supply connected to the power
2, according to the above diagram, the multimeter screwed into the voltage range (20V), the red pen into the module location of the second foot, black pen into the negative, and then press the launch button of the hand, so that can display voltage, Then adjust the multi-turn potentiometer to get the voltage you want.
package :
1pc module as picture show