Conversation

Notices

Embed this notice
feld (feld@friedcheese.us)'s status on Saturday, 12-Apr-2025 15:59:27 JST feld
in reply to
@hyc @froge @rayckeith What would it take to convince the tractor manufacturers to integrate it though?

In conversation about 15 days ago from friedcheese.us permalink
- Embed this notice
  Howard Chu @ Symas (hyc@mastodon.social)'s status on Saturday, 12-Apr-2025 15:59:28 JST Howard Chu @ Symas
  in reply to
  - Haderach C. Kwisatch
  - CyberFrog
  @froge @rayckeith in any case, it seems like not much trouble to deploy, and certainly worth doing. https://mastodon.social/@hyc/112430694224002097
  In conversation about 15 days ago permalink
  Attachments
  1. No result found on File_thumbnail lookup.
    
    Howard Chu @ Symas (@hyc@mastodon.social)
    
    from Howard Chu @ Symas
    
    @Eka_FOOF_A@spacey.space @FlashMobOfOne@mastodon.art @jasonkoebler that's just idiotic. Farmers and tractors don't need *Global* positioning systems. They just need a few local marker towers that define the boundaries of their fields. A set of radio transmitters at the corners of their property could be tuned to whatever power output needed to cover their land, and it would take a cataclysmic celestial event to interfere with the signal.
- Embed this notice
  Howard Chu @ Symas (hyc@mastodon.social)'s status on Saturday, 12-Apr-2025 15:59:30 JST Howard Chu @ Symas
  in reply to
  - Haderach C. Kwisatch
  @rayckeith presumably satnavs also work for sea and aircraft, while this would only work for ground. No?
  
  In conversation about 15 days ago permalink
- Embed this notice
  CyberFrog (froge@social.glitched.systems)'s status on Saturday, 12-Apr-2025 15:59:30 JST CyberFrog
  in reply to
  - Howard Chu @ Symas
  - Haderach C. Kwisatch
  @hyc@mastodon.social @rayckeith@techhub.social it's likely to fail at sea, but most aircraft can easily receive ground based signals (even phones on airplanes over domestic airspace get 4g signal sometimes)
  
  In conversation about 15 days ago permalink
- Embed this notice
  Haderach C. Kwisatch (rayckeith@techhub.social)'s status on Saturday, 12-Apr-2025 15:59:31 JST Haderach C. Kwisatch
  
  "GPS and similar satellite navigation systems revolutionized how you keep track of where you are and what time it is. However, it isn’t without its problems. For one, it generally doesn’t work very well indoors or in certain geographic or weather scenarios. It can be spoofed. Presumably, a real or virtual attack could take the whole system down.
  "Addressing these problems is a new system called Broadcast Positioning System (BPS). It uses upgraded ATSC 3.0 digital TV transmitters to send exact time information from commercial broadcast stations. With one signal, you can tell what time it is within 100 ns 95% of the time. If you can hear four towers, you can not only tell the time, but also estimate your position within about 100 m."
  https://hackaday.com/2025/04/11/gps-broken-try-tv/
  In conversation about 15 days ago permalink
  Attachments
  1. Domain not in remote thumbnail source whitelist: hackaday.com
    
    GPS Broken? Try TV!
    
    from Al Williams
    
    GPS and similar satellite navigation systems revolutionized how you keep track of where you are and what time it is. However, it isn’t without its problems. For one, it generally doesn’…

Public

Conversation

Notices

Feeds