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1. Embed this notice
   Snowshadow 🇨🇦 (snowshadow@mastodon.social)'s status on Tuesday, 29-Apr-2025 10:23:15 JST Snowshadow 🇨🇦

   🇺🇸 🇺🇸 Attention 🇺🇸 👋

   Use the link provided in the article to

   Make your voice heard!!
   This is irresponsible and dangerous!

   "Proposed Removal of USCG Navigational Aids Along the U.S. Northeast Coast"

   #US #ocean #Travel
   #Sailing #Fishing #Boating

   https://uscg-marker-removals.webflow.io/

   • Embed this notice
     feld (feld@friedcheese.us)'s status on Tuesday, 29-Apr-2025 10:23:11 JST feld

     in reply to

     • Tim Ward ⭐🇪🇺🔶 #FBPE
     • Zen Heathen 🇨🇦
     @ZenHeathen @Snowshadow @TimWardCam differential GPS can get you accuracy under a meter
   • Embed this notice
     Snowshadow 🇨🇦 (snowshadow@mastodon.social)'s status on Tuesday, 29-Apr-2025 10:23:13 JST Snowshadow 🇨🇦

     in reply to

     • Tim Ward ⭐🇪🇺🔶 #FBPE

     @TimWardCam Really, in aviation as well? This might explain why people don't want to fly over the US!

   • Embed this notice
     Zen Heathen 🇨🇦 (zenheathen@beige.party)'s status on Tuesday, 29-Apr-2025 10:23:13 JST Zen Heathen 🇨🇦

     in reply to

     • Tim Ward ⭐🇪🇺🔶 #FBPE

     @Snowshadow @TimWardCam Holy fuck, you can't use GPS for aviation! GPS is accurate to--at best--what, 40 feet?

     *sigh*. Tim, your book is one of my favourites, one of my once-a-year go-to's. I think it's time to start down my list again, get my nose in some dharma. Gotta get my metaphorical ass on the cushion. And my actual ass on the cushion. 🙏

   • Embed this notice
     Tim Ward ⭐🇪🇺🔶 #FBPE (timwardcam@c.im)'s status on Tuesday, 29-Apr-2025 10:23:14 JST Tim Ward ⭐🇪🇺🔶 #FBPE

     in reply to

     @Snowshadow Yeah, this has been happening for some time with aviation navaids. "Ground based equipment costs to maintain, and doesn't everybody use GPS these days?"

   • Embed this notice
     feld (feld@friedcheese.us)'s status on Tuesday, 29-Apr-2025 10:27:44 JST feld

     in reply to

     • Tim Ward ⭐🇪🇺🔶 #FBPE
     • Carsten Franke
     • Dianora (Diane Bruce)
     • Zen Heathen 🇨🇦
     @Dianora @carstenfranke @ZenHeathen @Snowshadow @TimWardCam the concern about spoofing is why there's interest now in using ATSC 3.0 for this purpose
     
     For more details look up the papers on Broadcast Positioning System (BPS) Using ATSC 3.0
     
     Currently the USA is at ~70% population coverage for ATSC 3.0 signals. South Korea was leading this I think. It should be expanding around the world I think. There's already proof of hardware to use it as a clock source and positioning system.
     
     I'm living in an area with coverage and I'd love to buy something that can do BPS and use it as an NTP clock source. I wonder if someone could build one with an SDR receiver? Or perhaps you'd need multiple?
   • Embed this notice
     Dianora (Diane Bruce) (dianora@ottawa.place)'s status on Tuesday, 29-Apr-2025 10:27:45 JST Dianora (Diane Bruce)

     in reply to

     • Tim Ward ⭐🇪🇺🔶 #FBPE
     • Carsten Franke
     • Zen Heathen 🇨🇦

     @carstenfranke @ZenHeathen @Snowshadow @TimWardCam The military removed the blurred GPS results for non-military years ago. It's very good now. The real problem nowadays is the use of GPS jammers/spoofers. It is a huge problem in war areas now.

   • Embed this notice
     Carsten Franke (carstenfranke@mastodon.social)'s status on Tuesday, 29-Apr-2025 10:27:46 JST Carsten Franke

     in reply to

     • Tim Ward ⭐🇪🇺🔶 #FBPE
     • Zen Heathen 🇨🇦

     @ZenHeathen
     GPS brings my little consumer from back to the landing spot to within a ft..

     @Snowshadow @TimWardCam

   • Embed this notice
     Dianora (Diane Bruce) (dianora@ottawa.place)'s status on Tuesday, 29-Apr-2025 11:19:46 JST Dianora (Diane Bruce)

     in reply to

     • Tim Ward ⭐🇪🇺🔶 #FBPE
     • Carsten Franke
     • feld
     • Zen Heathen 🇨🇦

     @feld @ZenHeathen @TimWardCam @Snowshadow @carstenfranke Yes I had heard of BPS. No, you'd only need one SDR rx.

     feld likes this.
   • Embed this notice
     feld (feld@friedcheese.us)'s status on Tuesday, 29-Apr-2025 11:20:30 JST feld

     in reply to

     • Tim Ward ⭐🇪🇺🔶 #FBPE
     • Carsten Franke
     • Dianora (Diane Bruce)
     • Zen Heathen 🇨🇦
     @Dianora @ZenHeathen @TimWardCam @Snowshadow @carstenfranke are you aware of anyone attempting to build this with an SDR? If you ever hear of such a project, please send me a link!