Discouraged with my efforts to get the transceiver below working, I have embarked on a new transceiver project, thanks to the postings and helpful hints of Peter Juliano (N6QW) and his extensive website of transceiver projects. Some of these projects are just too challenging for me, at least until I have some successful outcomes with the transceiver projects I've been working on! Peter's projects are incredible!
In order to get acquainted with a circuit, I often redraw it, and in that way I have a better idea about how to tackle layout and the order in which I will complete the project. Below is my schematic of the transceiver. Some modules are not yet represented. I will build this part and attempt to get the receiver working before I move on to the transmitter. The shaded areas are what I have completed so far, along with the bottom portion with the Arduino, display and Si5351 signal generator module.
Got the Arduino programming to work after several days of troubleshooting. Some of the code protocols had been revised in the past couple of years and it took forever to figure out that the encoder (the thingy to the left of the display that controls the frequency that appears on the display) was faulty. Replacing the encoder solved the problem.
Still working on this project...
