This is my linear satellite communication project (with a cost limit of 300 yuan, currently costing 180 yuan).
The receiver has been under development and testing. Today, we adjusted the transmission direction to optimize its performance.
As a result, the transmitter section was quickly completed.
The main controller uses STM32F103C8T6.
The transmit and receive chips are SI4463 (product library has been uploaded).
The amplifier uses HTL7G06S011P (product library uploaded).
The output is 20 dBm after a 20 dB gain, resulting in an output of approximately 10 W.
The reduced voltage was compensated for by boosting the 3.3V to 3.7V and applying it to the 4463, which resulted in stable operation.
The DC-DC design had an error; it used external battery power instead of the main unit's power supply.
Test video : https://www.bilibili.com/video/BV1MeuZ6BEZC
By the way, I've also accumulated 10 Karma points. How do you guys earn Karma?
闽ICP备2021006864号-7
闽公网安备35020602002794号