5 band qrp transmitter  design DL2MAN and PE1NNZ


At the beginning of April I received the basic kit. The soldering can begin
At the end of June all the soldering work  will be ready. Thanks to Jos ON6WJ.
Now I can upload the software.  Meanwhile I am also busy printing the housing.
Loading the software went smoothly. Everything is nicely explained on the DL2MAN website.
In testing, the inevitable happened. I made a short circuit. The result is that the atmega328 is defective. I have now ordered a new one and expect it by the end of July 2022.
The new atmega has been received. But there is another problem on the motherboard. So I decided to replace it.
now everything works fine. I have 4.8W power at 80m.
Now I can continue testing and adjust the coils by shifting the wires a bit. This allows me to adjust the power to the maximum on each band.
At the beginning of October, the small 0.96 OLED screen was replaced by a larger 1.29" OLED screen.


ALL info on www.dl2man.de