My goal is to produce good documentation and writeups about these projects: building and testing with a DIY suite of communications equipment. Much of what you see here is a big learning experiment, including writing an html/css webpage itself! Comments, questions, ideas and critiques are welcome.
Project specific code will be on its relevent webpage, but code and project schematics can be found on my gitlab: gitlab.com/motivemachine
My take on a PCB for OZ7TMD's AX.25 modem design. Uses an atmega328. Arduino compatible.
Antenna designs and EZNEC files. Some have been built, some are just at the design state.
An attractive and heavy duty j-pole antenna for 2 meters. Built with 3/8 aluminum round and stainless-steel nuts and bolts.
A quick n' dirty preamp and bias-t for better ADSB reception over long, cheap coax.