Collaborate Disseminate
[Shahriar] of The Signal Path is no stranger to these pages and is back with another fascinating video teardown and analysis for your viewing pleasure. (Embedded below.) This time the …read more Continue reading A 7 GHz Signal Analyser Teardown And A Trivial Repair
[Avian] has been using STM32 ARM processors to sample RF for a variety of applications. At first, he was receiving relatively wide TV signals. Recently, though, he’s started dealing with very narrow signals and he found that his samples had a lot of spread in the frequency domain that he didn’t expect.
What followed was some detective work that resulted in a determination that phase noise was the culprit. But why? [Avian] took some measurements and noticed that the phase noise almost exactly matched the phase noise specification for the STM32’s phase locked loop (PLL).
Unfortunately, there didn’t seem to …read more
