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To: Poohbah
GPS satellites presently use radiation-hardened chips--otherwise they'd fail in a matter of hours after launch.

So, it is not unreasonable to think that these chips will be used in foreign GPS satellites?

I said "our technology (for the military) it totally dependent on GPS"

You said, "Actually, it isn't; it just helps our military work better.

I agree with you. However, I don't think that most of our strategies in Iraq would have worked without GPS. Do you?

All you have to do is kill over 20 satellites, WITHOUT killing your own unhardened satellites, AND ensure that the Americans can't use YOUR satellites.

Kill or DISABLE?

I believe that if those satellites can be turned off, jammed, or otherwise scrambled, that the CHINESE have the best shot at it. How much of the GPS technology did Clinton give to the CHINESE?

I don't know and I would venture neither do you. Do our GPS satellites have self-destruct capabilities, should they lose orbit and need to be destroyed?

The precision of GPS coordinates is varied for various uses. Normal precision is what you and I can get. Then there is military precision. This accuracy was available only to the military (and other government agencies like NASA), and yet, Clinton gave away the 'key' to this to the Chinese.

OK, then kindly tell us how it would be done.

Reverse engineering. Now that the Chinese have the chips, they can determine exactly what and how they are 'protected'. Then, they design an extra protection around these 'hardened chips' that the US ones (already in use, in orbit) do not have.

Place the Chinese GPS sats in a different orbit than the US ones. Play bowling for dollars with a bunch of steel ball bearings. I can think of many ways to destroy or incapacitate them.

14 posted on 09/29/2003 3:34:24 PM PDT by UCANSEE2 (y)
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To: UCANSEE2
So, it is not unreasonable to think that these chips will be used in foreign GPS satellites?

Nope, not at all-but everybody makes rad-hard chips, not just the US.

Kill or DISABLE?

There is no significant difference.

I believe that if those satellites can be turned off, jammed, or otherwise scrambled, that the CHINESE have the best shot at it. How much of the GPS technology did Clinton give to the CHINESE?

Why is it that everyone thinks that the DoD doesn't understand things like compromised key lists and such?

Why do they assume, in other words, that the professional space warriors are dumber than a box of rocks?

I don't know and I would venture neither do you.

You venture incorrectly.

Do our GPS satellites have self-destruct capabilities, should they lose orbit and need to be destroyed?

If they come out of orbit, they get destroyed on reentry into the Earth's atmosphere. No destruct capability needed.

The precision of GPS coordinates is varied for various uses. Normal precision is what you and I can get. Then there is military precision. This accuracy was available only to the military (and other government agencies like NASA), and yet, Clinton gave away the 'key' to this to the Chinese.

Actually, he didn't; the key to military precision is not in a magic computer chip, it's in a second GPS channel that is encrypted.

Reverse engineering. Now that the Chinese have the chips, they can determine exactly what and how they are 'protected'.

Anybody with a degree in electrical engineering can see how they're protected.

Then, they design an extra protection around these 'hardened chips' that the US ones (already in use, in orbit) do not have.

GPS birds are hardened to the JCS Level One standard, far beyond what these chips are hardened to.

Place the Chinese GPS sats in a different orbit than the US ones.

Doesn't help them a bit.

Play bowling for dollars with a bunch of steel ball bearings. I can think of many ways to destroy or incapacitate them.

And, of course, cripple their own satellites due to a Kesselman Syndrome--which, BTW, is what really killed the Air Force ASAT program.

22 posted on 09/29/2003 4:20:03 PM PDT by Poohbah ("[Expletive deleted] 'em if they can't take a joke!" -- Major Vic Deakins, USAF)
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