The design Here is a "safe" APRS interface for BaoFeng and other radios. Sample schematic: Previous Next / [pdf] View the PDF file here. Motivation https://github.com/skuep/AIOC works but it seems to have a couple of problems: ...
OCXO's are awesome - this is what I learned while trying to get WSPR working reliably on the 2m band. Hardware Here is all you need for reliable WSPR'ing on the 2m band: A RAW OCXO "can" works fine too! Note: This modded Si5351 board image comes from SimonsDialogs. Essentially we are modding the CLK2 output port to become an input port which accepts the OCXO's output signal. ...