– Correction 1 – FST3253 pin 1 tied to VCC pin 16.
This made me to think of a new version of my PCB series which gave birth to V1.02. Also thanks to brilliant members of UCX forum we found out that we shouldn’t let FST3253 pin number 1 floating as it effects receive characteristics badly.Īs there was also positive suggestions from fellow hams who built and tested V.1.01 pcb to improve some of the features of both pcb versions. So it worked great and no errors? Nope! I messed up again! It was an improvement over V1.00 but had two glitches and that’s why there is a modification section for V1.01. So the corrected version of PCB is V1.01. It didn’t! There were couple of mistakes on my part and lessons learned and corrected.
So what is this article all about if we have two versions of PCB of the same project! Well version 1.00 PCB was a test pcb to see if I can design a HF PCB and to see if everything is working as planned. The history of uSDX and details of version 1.00 and 1.01 pcb is here:
I took Guido’s brilliant design and devised couple versions of PCB’s to build it. USDX is an Arduino based SDR all mode HF QRP transceiver project brain child of Guido PE1NNZ. USDX – An Arduino based, DIY, QRP, SDR, All mode HF Transceiver – PCB Iteration V1.02