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“Time flies when you’re having fun. Or are just too busy with things, in general. It’s been two and a half years since I posted about my Dual Mono AK4490 DAC. That DAC has been built and is …

“Vector network analyzer (VNA) are used to measure scattering parameters of high frequency circuits. When frequency is high enough the reflections of the waves start to matter and distributed effects need to be taken into account. VNA can be used …

“An accurate frequency counter using an FPGA, STM32 and a bluetooth android app. Here we have a good example of how a requirement for a simple tool spirals out of control and spawns a project that takes months to complete …