US GPS, Russian GLASNOS and now.. - SailNet Community
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post #1 of 23 Old 11-16-2018 Thread Starter
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US GPS, Russian GLONASS and now..

European GALILEO..

https://www.engadget.com/2018/11/16/...cy/?yptr=yahoo
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post #2 of 23 Old 11-17-2018
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Re: US GPS, Russian GLASNOS and now..

We may need the redundancy:

https://www.google.com/amp/s/amp.cnn...ing/index.html

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post #3 of 23 Old 11-18-2018
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Re: US GPS, Russian GLASNOS and now..

I have no doubt that GPS will become more and more vulnerable. It's too rich a target and can cause a tremendous amount of disruption and fear.


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post #4 of 23 Old 11-18-2018
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Re: US GPS, Russian GLASNOS and now..

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Originally Posted by Minnewaska View Post
I have no doubt that GPS will become more and more vulnerable. It's too rich a target and can cause a tremendous amount of disruption and fear.
There are so many global positioning satellites zipping around in low orbits, it's a wonder they don't run into each other (lol). You have the US, Russian, Europe and China up there. It is well known that you can jam a receiver or spoof it .

So, yes, global positioning systems are vulnerable to some extent--but primarily at the receiver--meaning local vs global--level. That said, the fact that large scale interference with GPS or one of the other systems would affect more than the owner of the global positioning system is a deterrent.

Meanwhile, there are military alternatives for navigation/positioning, such as LORAN and electronic celestial navigation, which have been around for at least 50 years. LORAN, for example, went away a few years ago but may be operationally resurrected as "eLORAN".
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post #5 of 23 Old 11-19-2018
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Re: US GPS, Russian GLASNOS and now..

My new smartphone comes with both A-GPS, GLONASS so needs to be a World War before I lose location

I guess yours does too?

Mind you mine isn't for sale in the USA... It's Samsung A8 Star only available in India and Hong Kong AFAIK.

I would have thought a marine GPS should receive them all?

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post #6 of 23 Old 11-19-2018
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Re: US GPS, Russian GLASNOS and now..

Quote:
Originally Posted by fallard View Post
There are so many global positioning satellites zipping around in low orbits, it's a wonder they don't run into each other (lol). You have the US, Russian, Europe and China up there. It is well known that you can jam a receiver or spoof it .

So, yes, global positioning systems are vulnerable to some extent--but primarily at the receiver--meaning local vs global--level. That said, the fact that large scale interference with GPS or one of the other systems would affect more than the owner of the global positioning system is a deterrent.

Meanwhile, there are military alternatives for navigation/positioning, such as LORAN and electronic celestial navigation, which have been around for at least 50 years. LORAN, for example, went away a few years ago but may be operationally resurrected as "eLORAN".
They have spares up there... plus the orbits are well known and consider how likely it would be for a few undred vessels in the entire globe covered in water to collide. Kinda unlikely but possible.

pay attention... someone's life depends on it
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post #7 of 23 Old 11-19-2018
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Re: US GPS, Russian GLASNOS and now..

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Originally Posted by MarkofSeaLife View Post
My new smartphone comes with both A-GPS, GLONASS so needs to be a World War before I lose location

I guess yours does too?

Mind you mine isn't for sale in the USA... It's Samsung A8 Star only available in India and Hong Kong AFAIK.

I would have thought a marine GPS should receive them all?
Several GPS antennas offer GPS and GLONASS reception and have for years. I bought a Digital Yacht unit about 5 yrs ago to replace a much older Raymarine antenna and was able to interface it with a Raymarine CP via NEMA (vs Seatalk).https://www.defender.com/product3.js...056&id=2360307
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post #8 of 23 Old 11-19-2018
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Re: US GPS, Russian GLASNOS and now..

Yes, it's a thing. The good news is that unless you are a precision guided munition, you probably won't notice.
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post #9 of 23 Old 11-19-2018
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Re: US GPS, Russian GLASNOS and now..

During the last NATO exercise in Norway Russia was jamming GPS signals disturbing military and civilian use.
https://www.realcleardefense.com/art...se_113960.html
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post #10 of 23 Old 11-19-2018
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Re: US GPS, Russian GLASNOS and now..

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Originally Posted by knuterikt View Post
During the last NATO exercise in Norway Russia was jamming GPS signals disturbing military and civilian use.
https://www.realcleardefense.com/art...se_113960.html
The reported Russian jamming was local and did not affect receivers that were not in the immediate area of the jamming. BTW, the was the RECEIVERS that were jammed—not the GPS system itself, based on the published reports. So, if you were not in the war games zone your sailboat GPS receiver was not affected.
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