You’ll find it at the heart of an RF power meter, but it’s also perfect for a precision field strength meter like this one. That movie spy would have a much higher chance of finding the bug ...

The Tegam Gemini 5540A achieves two-sigma accuracy of ±0.5% + 0.5 W for precise in-line RF power measurement and control. Integrating a power sensor and meter into a single instrument, the Gemini ...

Housed in a sturdy aluminum housing, the LB5918A is 1.6 in. in diameter and 3.0 in. long. It is supplied with a power-meter application that provides tabular logging, strip charting, analog gauge ...

Posted in Radio Hacks Tagged amateur radio, ham, homebrew, power sensor, QO-100, RF, schottky, wattmeter ...