A well-known property of wall warts like power bricks and USB chargers is that they always consume some amount of power even when there’s no connected device drawing power from …read more (https://hackaday.com/2026/03/22/how-a-belkin-usb-charger-pulls-off-a-3-milliwatt-standby-usage/)

Building a $50 SDR with 20 MHz Bandwidth
https://hackaday.com/2026/03/22/building-a-50-sdr-with-20-mhz-bandwidth/

Although the RTL-SDR is cheap, accessible, and capable enough for many projects, it does have some important limitations. In particular, its bandwidth is limited to about 3.2 MHz, and the …read more (https://hackaday.com/2026/03/22/building-a-50-sdr-with-20-mhz-bandwidth/)