C ontesting QRP from the mobile is really a challenge. I knew that the Russian Radio Team Championship was on today and expected a lot from ...

C ritical as I am about some things I got aware of some critics on JT65 modes from years ago via this writing on PA3CWN's QRZ page: ...

A new digimode based on BPSK varicode has arrived. Structured Integrated Message BPSK or SIM-BPSK. The goal of this new mode is not to do...