Did you know than an audio equipment can cause “off gear distortion” on line level signals that are driving multiple pieces of audio gear? I have had situation where I had one CD player wired to inputs of two different amplifiers (Y-splitter cable). When both amplifiers were powered on, everything worked nicely. But when one →
Happy birthday Windows 3.1, aka ‘the one that Visual Basic kept crashing on’ This 30-year-old software that first introduced Windows Registry and killed Real Mode. This was the Windows version that made it to really mainstream. Windows 3.1 sold very well, with an appealing user interface and consumer-friendly multimedia features. It did, however, have a →
Here are links to some links to maybe useful Windows 10 information: https://www.cnet.com/how-to/windows-10-spring-2021-update-every-new-feature-when-to-download-and-more/ https://www.makeuseof.com/what-is-windows-fast-startup-why-disable-it/ https://www.zdnet.com/article/five-windows-10-features-you-really-should-be-using/ https://www.techrepublic.com/article/how-to-flush-the-dns-cache-to-improve-network-performance-in-windows-10/ https://www.pcworld.com/article/3613049/lock-windows-10-pc-with-a-dedicated-local-administrator-account.html https://www.techrepublic.com/article/how-to-use-a-batch-file-to-reset-and-renew-a-network-connection-in-windows-10/ https://www.howtogeek.com/213145/how-to%C2%A0convert-a-physical-windows-or-linux-pc-to-a-virtual-machine/amp/ →
This posting is here to collect cyber security news in April 2022. I post links to security vulnerability news to comments of this article. You are also free to post related links to comments. →
RF attenuators are essentially electrical resistor circuits that are put in line with an RF signal and reduce the signal strength. The amount of resistances used is what determines the amount of attenuation. Basic circuits used in attenuators are pi pads (π-type) and T pads. The lost power in the attenuator is converted into heat. →
Humidity meters are a useful device to help to ensure that your home or workplace is kept at a reasonable humidity. It is a good idea to monitor the humidity to avoid problems caused by dampness or extreme dry conditions. Here are videos and links a look at how they humidity sensors work and how →
The American space agency has achieved a major milestone in its preparation of the new James Webb Space Telescope. James Webb telescope mirror alignments has been finished, and the results are exceeding expectations. Still some work to go before actual science operation can start. NASA’s Webb Reaches Alignment Milestone, Optics Working Successfully https://www.nasa.gov/press-release/nasa-s-webb-reaches-alignment-milestone-optics-working-successfully James Webb: →
Many of us are unknowingly exposed to some level radioactive radiation every day. There is always some background radiation. Even some common household items can be a source of radiation. Radiation meters allow you to know the amount of radiation on your environment. Typically this type of meters are used for letting you know if →
Meltdown and Spectre are vulnerabilities in modern computers that can be used to leak passwords and sensitive data. Meltdown and Spectre exploit critical vulnerabilities in modern processors. These hardware vulnerabilities allow programs to steal data which is currently processed on the computer. The vulnerabilities were found in 2017 by several researches, but were kept secret →
Finland’s Transport and Communications Agency, Traficom, has issued a public announcement informing of an unusual spike in GPS interference near the country’s eastern border. According to reports, the interference isn’t limited to Finland but also affects Poland, Lithuania, Latvia, and the broader Baltic region. This spoofing is relatively easy because the actual GPS signal is →