It turns out, it is a sound card itself. When you plug it into a PC, it offers audio in and out for ham radio programs. It can even send IQ signals directly to the PC for common SDR programs to ...

Both digital and print copies are available. “When all else fails”—in 2003, the Amateur Radio Relay League used this as the motto for Field Day, the annual demonstration of its capabilities to the ...

There was a time when a ham radio set up sported many dials and switches ... to installing everything from an SDR to many common ham programs for digital modes, APRS, SSTV, and more.