Category Archives: signals

Your WiFi signals are revealing your location

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The home may be the hearth, but it’s not going to be a place of safety for too long.

With the abundance of connected devices making their ways into our homes, increasing levels of data may allow for more accurate methods for remote surveillance. By measuring the strength of ambient …read more

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NanoVNA is a $50 Vector Network Analyzer

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There was a time when oscilloscopes were big and expensive. Now you can get scopes of various sizes and capabilities on nearly any budget. Vector network analyzers — VNAs — haven’t had quite the same proliferation, but NanoVNA may change that. [IMSAI Guy] bought one for about $50 and made …read more

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Say it With Me: Bandwidth

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Bandwidth is one of those technical terms that has been overloaded in popular speech: as an example, an editor might ask if you have the bandwidth to write a Hackaday piece about bandwidth. Besides this colloquial usage, there are several very specific meanings in an engineering context. We might speak …read more

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Low-Level Analog Measurement Hack Chat

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Join us on Wednesday 17 July 2019 at noon Pacific for the Low-Level Analog Measurement Hack Chat with Chris Gammell!

A lot of electronics enthusiasts gravitate to the digital side of the hobby, at least at first. It’s understandable – an Arduino, a few jumpers, and a bit of code …read more

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Diameter Protocol Found To Be Vulnerable – On Par With SS7 For Flaw Tally

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Whilst the flaws in Signaling System 7 (SS7) are the gift that keeps on giving, in this case, that gift has been inherited by the DIAMETER protocol, to the delight of miscreants unknown.. With internal system, billing and bridging protocols like thes… Continue reading Diameter Protocol Found To Be Vulnerable – On Par With SS7 For Flaw Tally→

City of Tacoma Fined $300,000 For Witholding Stingray Surveillance Data

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Both Cyrus Favrivar of Ars Technica and Kate Martin, writing for The Tacoma News Tribune, have reported (Ars, Tribune) that Judge G. Helen Whitener has rebuked the Tacoma Police Department’s for their apparent decision to not produce the surveillance… Continue reading City of Tacoma Fined $300,000 For Witholding Stingray Surveillance Data→