In his regular browsing on AliExpress, [Ben Jeffrey] came across something he didn’t understand—a $5 fiber optic to RF cable TV adapter. It was excessively cheap, and even more mysteriously, this ...

There was a time — not long ago — when radio and even wired communications depended solely upon Morse code with OOK (on off keying). Modulating RF signals led to practical commercial radio stations ...

Raspberry Pi enthusiasts searching for a way to use their Raspberry Pi mini PC with an old school retro TV, may be interested in the Raspberry Pi Zero RF Modulator HAT. Using old now-defunct TVs and ...

Abstract: A 5 GHz-band direct digital radio frequency (RF) modulator using current-mode digital-to-analog converter (DAC) with idle current is proposed and fabricated in 90-nm complementary metal ...