Modulation is fundamental to electronic communications. The modulating signal might be analog in nature (voice or music) or digital bit streams. Most modern communication systems are digital, using ...

Electronic communications began as digital technology with Samuel Morse’s invention of the telegraph in 1845. The dots and dashes of his famous code were the binary ones and zeroes of the current ...

There are a lot of radio options in the U.S., but shortwave radio (SW) is a big deal globally. It's no surprise, then, that SW is going digital. Like many of you, I attribute my career in electronics ...