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Update - GPS losing lock in US?
On Thu, 12 Oct 2006 00:53:25 +0000, Tom Francis wrote:
After doing some searching, I've found complaints from the Agricultural community in the US and in Australia. Apparently the outages are raising some problems with harvesting wheat, corn and such (GPS is used for positioning and reporting yields per acre plus other arcane agricultural stuff) and for planting (like in Australia). Curioiuser and curiouser. I'm wondering. Is this a recent problem, or, perhaps, an ongoing problem that you are just noticing? |
Update - GPS losing lock in US?
The complaints are due to some unhealthy satellites. At one point a few
weeks ago, there were three that were out of commission at the same time. At certain times during the day in certain environments, you wouldn't be able to get a fix due to the lack of satellites. After doing some searching, I've found complaints from the Agricultural community in the US and in Australia. Apparently the outages are raising some problems with harvesting wheat, corn and such (GPS is used for positioning and reporting yields per acre plus other arcane agricultural stuff) and for planting (like in Australia). Curioiuser and curiouser. I'm wondering. Is this a recent problem, or, perhaps, an ongoing problem that you are just noticing? I first noticed it about three weeks ago when I was on a fly fishing guiding trip at Webster Lake. We were fishing "Small Mouth Alley" south of Goat Island right smack in the middle of the Middle Pond when I looked at the GPS and there was a "NO FIX" indicator. I reset the GPS, but no joy - brought up the sat screen and no signals, etc. Then they came back and I had the GPS back again. Couple of days later, I was at Quaddick Reservoir same thing happened. That weekend again - this time I was just off Fisher's Island near Race Rock - same thing. I was off the water for a few days, then out in Narraganset Bay same thing - open water, same problem. It kept happening, but the latest was last Friday on the CT River near Portland. I figured I was having problems with the GPS systems, but I have two and both were doing the same thing - I figured maybe a software or receiver glitch and I'd research it after I put the boats up. It all happens late morning or early afternoon. I looked for sunspot activity as that can cause problems, but there weren't any reports of serious flares. The tonight, I received this message from one of the list members, a couple of other members chimed in with replies to emails from Garmin, Raymarine and Lowrance. Which is what started me looking around. There are hints of this and that, including the Aussie ABC site in September complaining about loss of GPS signals, some car groups and what I've been relating. The USCG Nav Center reports all current birds up and running. There was a report of the Chinese spotting US GPS sats with lasers a couple of weeks ago that I read somewhere - can't remember where. So that's the story to this point. |
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