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 ...

Tektronix introduced its first family of oscilloscope probes with more robust RF ... to low-power applications like battery performance testing in mobile devices—all with a single probe ...

This means that low power consumption ... draw from their RF circuits. To effectively measure these low current draws, [Refik Hadzialic] built a cheap but accurate current probe.