What is your project about? Why did you decide to make it? How does it work? Show us with images and videos!

For qrper, I have designd mini size transmitter pcb.


1, crystal osc(vxo) , all HF.

2, mic-compessor is on borad (TA2011S)

3, dbm as sn16913

4, AM or DSB

5, M28S is a final device, able to drive 1W(100mA x12 V),but using input 500mW.

6, size 57 x71mm.


Power supply is driving about 0.2A /14V