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Search took 0.00 seconds. Search: Posts Made By: a64pilot
Forum: General Sailing Forum 02-07-2020, 07:03
Replies: 56
Views: 4,413
Posted By a64pilot
Re: GPS upended?

People want to argue this apparently but the only thing common in Military and Civilian GPS is they MAY be located on the same Satellite.
It would be difficult to jam or even more so to spoof a JDAM...
Forum: General Sailing Forum 02-07-2020, 06:50
Replies: 56
Views: 4,413
Posted By a64pilot
Re: GPS upended?

There were many Commercisl systems, but not because the military ones were unreliable or didn’t work, which is what you posted, we didn’t have Military systems because they hadn’t been purchased, so...
Forum: General Sailing Forum 01-07-2020, 07:14
Replies: 56
Views: 4,413
Posted By a64pilot
Re: GPS upended?

Jamming a civilian GPS is easy, very easy.
A couple of years ago I remember a truck driver that was arrested, he had a jammer so that his boss couldn’t track the truck, problem was he jammed the...
Forum: General Sailing Forum 01-07-2020, 07:12
Replies: 56
Views: 4,413
Posted By a64pilot
Re: GPS upended?

While I’m not familiar with the USCG DGPS, DGPS is orders of magnitude more accurate than WAAS, DGPS can and will get you to sub centimeter accuracy, Steering that farm tractor for example, WAAS...
Forum: General Sailing Forum 30-06-2020, 19:06
Replies: 56
Views: 4,413
Posted By a64pilot
Re: GPS upended?

That never happened either, many, many Commercial GPS receivers were used due to the lack of funding, there were very few Military GPS receivers, none for example in Army Aviation at the time.
The...
Forum: General Sailing Forum 30-06-2020, 18:30
Replies: 56
Views: 4,413
Posted By a64pilot
Re: GPS upended?

No, he’s not WAAS is good, very good for boat navigation, but for instance if you want to use GPS to steer your farm tractor and need dependable accuracy to a couple of inches or less, then you will...
Forum: General Sailing Forum 30-06-2020, 18:22
Replies: 56
Views: 4,413
Posted By a64pilot
Re: GPS upended?

No, I’m not, used to be civilians used C code and military P (y) Y code if you had a secure fill, but now I believe the military uses M code.
Any area that military operations are being carried out,...
Forum: General Sailing Forum 29-06-2020, 06:51
Replies: 56
Views: 4,413
Posted By a64pilot
Re: GPS upended?

Military uses a different frequency and the Sats are at a different transmit power I believe as well. Military GPS will penetrate a jungle canopy and the receiver will work, a civilian GPS won’t.
...
Showing results 1 to 8 of 8

 
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