SD cards & the much smaller microSD cards are found on many devices, with the card often accessible from outside the enclosure. Unfortunately there’s a solid chance that especially small microSD cards ...

Small NanoVNA and tinySA programs for scripting and automation, developed on Debian stable (bookworm), but any other Linux/Unix system should work. Windows and Mac are untested due to lack of HW. The ...

It does not matter that nanovna continuously sweeps when measuring filters or passive devices. However when measuring amplifiers or active devices, especially with a high gain and/or high output power ...

A staple of the radio amateur’s arsenal of test equipment in previous decades was the dip meter. This was a variable frequency oscillator whose coil would be placed near the circuit to be tested, and ...

A Vector Network Analyzer (VNA) measures the real and imaginary parts of a signal, which together can be represented as a vector on a Smith chart. ‘Network’ refers to any circuit with resistors, ...