The baby is developed hand power amplifier board， support for digital radio， you can use RA， M and Toshiba SU series modules， the board comes with a transceiver conversion circuit， and a reception with 4DB amplification， effectively compensate for receiving insertion loss， to improve the reception of the Spirit each.

Baby Size:

Maximum output power: 70W (depending on the module model)

Input power: 1-5W

:( Depending on transmission frequency module model)

Receiving frequency: 50-1000MHz

Receive gain: Gp> (spectrum analyzer 12-22dB) (hand-held walkie-talkie 4DB)

Noise factor: 2dB 500MHz

Output power: Depending on the model installation module

Supply voltage: 10-13.8V

Working current: about 30-40mA

Minimum size: 96 * 43mm

About required for different series voltage regulator modules， RA open series of modules second pin voltage is 3-5V， the use of RA module user must pay attention

1， the first board is fixed to the heat sink (module Do not welded)， then take to use the desired station and then board 12V power supply after connecting powered

2， as shown above， the multimeter voltage profile is screwed to (20V inside)， the red pen into the second position of the module feet， black pen into the negative， and then press the launch button to start station， so you can display voltage， then adjust the multi-turn potentiometer， get what you want voltage.

package

1pc module