DIY SCALAR NETWORK ANALYZER

[Steven Merrifield] built his own Scalar Network Analyzer and it’s a beauty! [Steve]’s SNA has a digital pinout matching a Raspberry Pi, but any GPIO could be used to operate the device and retrieve the data from the ADC. The design is based around a few tried and true chips from Analog Devices. He’s taken some care to design it to be nice and accurate which is why he’s limited it to 1kHz to 30Mhz. We think it’s quite a fetching board once the shielding is in place.

We’ve covered network analyzers and their usefulness before. If you want to know how, for example, a mystery capacitor from your junk bin will respond to certain frequencies, a network analyzer could tell you. We’ve even taken a stab at hacking together our own.

There is more documentation on his website as well as some additional example curves. The board is easily ordered from OSHpark and the source code is available for review.

Source: DIY SCALAR NETWORK ANALYZER

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