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Tales From the Sysadmin: Impending Hard Drive Doom
It should have been another fine day, but not all was well in paradise. Few things bring a creeping feeling of doom like a computer that hardlocks and then refuses to boot. The clicking sound coming from the tower probably isn’t a good sign either. Those backups are up to...
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How to use the NanoVNA to sweep / measure an antenna system’s SWR and optimize its tuning
{sizes=”(max-width: 400px) 100vw, 400px” srcset=”https://qrznow.com/wp-content/uploads/2020/06/pic09-e1579354143333.jpg 400w, https://qrznow.com/wp-content/uploads/2020/06/pic09-e1579354143333-300x179.jpg 300w”} This video briefly shows how to setup and use the NanoVNA to sweep an antenna system (antenna, transmission line, transmatch, etc.) to measure its VSWR, Reflection Coefficient, etc., and then shows how you can use it to monitor the tuning behavior as...
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Search Yourself Online
Ever wonder just how much information is publicly available about you? Ever wonder how cyber criminals harvest information and customize attacks for their victims. The technique is called Open Source Intelligence (OSINT) and it is far simpler and more powerful than you think. Article Source.