Taylor Jessen on Nostr: Hacker Joseph Gabay on the 7.8 Khz radio signal used to lock wheels on shopping ...
Hacker Joseph Gabay on the 7.8 Khz radio signal used to lock wheels on shopping carts:
"Generally in radio applications, you want your antenna to be close-ish or an integer-multiple of your radio wavelength. The wavelength of this signal [7.8 Khz] is about 32 kilometers...so I wasn't able to build a tens-of-mile antenna for this project. If I did, I'd have a great transmission radius, and I'd lock every cart on the East coast."
Note to the U.S. Navy's VLF transmitter station in Cutler, Maine: hey I just had this really fun idea
https://www.begaydocrime.com/
h/t npub1hykucplphuhelaxutcw4jw3vuu7gcg42czhqmk7jhchs8vdga4fsj73p33 (npub1hyk…3p33)
"Generally in radio applications, you want your antenna to be close-ish or an integer-multiple of your radio wavelength. The wavelength of this signal [7.8 Khz] is about 32 kilometers...so I wasn't able to build a tens-of-mile antenna for this project. If I did, I'd have a great transmission radius, and I'd lock every cart on the East coast."
Note to the U.S. Navy's VLF transmitter station in Cutler, Maine: hey I just had this really fun idea
https://www.begaydocrime.com/
h/t npub1hykucplphuhelaxutcw4jw3vuu7gcg42czhqmk7jhchs8vdga4fsj73p33 (npub1hyk…3p33)