DIY RF Field Strength Meter / Detector With Audible, Visual, And Digital Indicators (Based on 555 Timer And Simple Parts)
This was a little rabbit hole. On some amateur radio forum somewhere someone mentioned the MFJ-802B RF Field Strength Meter. This piqued my interest because I had not realized that a field strength meter was a consumer accessible device. Turns out there are all sorts of RF meters and detectors available to purchase. Who knew? …
