rad0 wrote:
> > 2600 magazine recently had an article on how to jam civilian GPS
> > signals with just $30 worth of parts. It wouldn't be much harder to
> > jam the P code signals too (just raise the chip rate to match the P code
> rate).
>
> check bagdhad and environs for the efficacy of this idea

My point was that it isn't too costly to jam GPS.

I rather doubt that the Iraqi's thought to jam the P code GPS transmissions,
and of course inertial navigation gets you close enough once you have
a fix. Though if someone wanted to jam GPS at a fogged in harbor, it could
get rather messy.

> > DDOS (distributed denial of service) for satellite is extraordinarily
> > difficult to combat. A ship or two or three, offshore, could do a LOT
> > of damage to the US satellite infrastructure, and cheaply too.
> > And what if the 'terrorists' set up their dishes next to existing
> teleports?
> >
> you're ignoring the obvious, which isn't surprising for a criminal mind

Hardy. To fight criminal minds you have to THINK like them. Duh....

> a ship, can be blown out of the water and is easily seen from above,
> approaching and leaving

Of course. So the US will then bomb every foreign fishing vessel, freighter,
tanker and the like it finds?

Again, my point was that it is trivially EASY to jam satellites,
and damned hard to pin point the uplink, particularly if mobile.
Why do you think all US commercial uplinks are required to transmit a morse
coded telephone number on a standard subcarrier? So that unintentional
jamming can be more quickly fixed.

> and you are also ignoring the fact that the US will dog you to hell and back
> for fucking ever if you try this

I see. So the USA can do whatever the F' it pleases, but responding in
kind is not an option. I guess you guys really didn't learn anything from 9/11.

First you have to know the where and maybe the who. Do you have any idea
how many satellite uplink trucks are running around your country at
any given moment? Any one of which could take out a major comm link
for many hours.

> and when they find you they will mercilessly kill you and all those who were
> helping you

Yep, just like the terrorists you claim to be fighting. To hell with
due process. If you're a French journalist attending a trade show
in L.A., they'll just handcuff you, strip search you a few times,
hold you for 26 plus hours on bogus 'irregularities', and then ship
you back to France.

http://groups.google.ca/groups?selm=daiza.242685%24YZ.34261%40news.easynews.com&oe=UTF-8&output=gplain
LOS ANGELES, May 21 (AFP) Six French journalists who came here to cover a
video games trade show were sent home after being, searched, handcuffed and
held for 26 hours at the Los Angeles Airport for lack of visas, immigration
officials said Wednesday...

It's exactly this kind of behaviour that earns you the "Ugly American"
moniker. And then you wonder why so many people hate the USA??
Why was it that so many of your American compatriots used to tour Europe with
a Canadian flag on your gear? Talk about traveling under false pretenses...

> radars are easily seen and just as easily destroyed

You have again missed my point. I said "old radar unit", attached to
big TV dish. Looks just like any one of 10,000 OTHER TV dishes.

The point being that high power RF pulses uplinked to a satellite
would effectively jam it, with relative ease and undetectability.
And you're assuming a continuous transmission. Random jamming would
quite effectively disable DTH broadcasts, to say nothing of the
propaganda opportunity of taking over all major network downlinks
to deliver your 'manifesto' with 'proper' uplink gear.

> I encourage you to take your best shot though, give it a try, act...
> find allah now, don't wait!

What a prick. But then I expected nothing better from you...
When you go around the world shoving people around, sooner or later they
shove back. And it's only just begun...

Save your political rhetoric for a more suitable list. My point on this
list is that it is technically quite feasible for the proposed US space
policy to backfire in spades.

R

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