the IR sensors for precise aiming. High-end, third-party remote controls use radio frequencies (RF) instead of infrared. Such remotes neither have to be aimed, nor even be in the same room ...

BRAND NEW in Factory Plastic Bag With Room Stickers With Batteries Original RC66RX RF/IR DIRECTV Remote Controls. The RC66RX Remote Control Will Work On These DirecTV Receivers:H20, H21 ...

A case in point is this super-low-cost RF power sensor that [Tech Minds (M0DQW)] recently built. It’s based on a design by [DL5NEG] that uses a single Schottky diode and a handful of passive ...

(Radio Frequency remote control) A handheld, wireless device used to operate audio, video and other electronic equipment using radio frequency (RF) transmission. Unlike the common infrared (IR ...

IoT devices operate here, as well as security systems and, of course, remote controls. And, using a few off-the-shelf parts [hesam.moshiri] shows us how to take advantage of this piece of spectrum ...