291–300 of 325 posts
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Depends on the frequencies and types of antennas used. Doesn't take much to disrupt a radio-based service (people do this by accident, that's why RF regulations exist everywhere). It's not that much of an expense for a government to set up a few antennas and make them put out half a megawatt of noise each.
You can also use directional antennas to find and destroy RF jammers
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wat how are lasers working in this scenario
Each end (satellite and ground station) point a laser at each other, which they modulate according to the data they wish to send. The other end has a sensor (much like in a camera) that captures the light, and processes it to recover the data (demodulate). It's much like fiber optics, except over air instead of a cable.
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Imagine arguing Saddam's Iraq wasn't a basket case country. Iraqi celebrated when he was gone for a reason.
It had advanced education, universities which sent scientists to participate in conferences. Of course Saddam was a tyrant but at least the country functioned.
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Indeed. High-gain antennas and some math trickery can compensate a bit (see e.g. GPS and its below thermal noise floor signals), but I don't think a commercial transceiver could in any way win with a 50kW signal on a broadcast antenna turned jammer on a nearby hilltop.
But iraq is quite a big country. So do you think some jammers are enough for the country, or would you have to deploy them on every big hill/mountain?
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Imagine arguing Saddam's Iraq wasn't a basket case country. Iraqi celebrated when he was gone for a reason.
It had advanced education, universities which sent scientists to participate in conferences. Of course Saddam was a tyrant but at least the country functioned.
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Depends on the frequencies and types of antennas used. Doesn't take much to disrupt a radio-based service (people do this by accident, that's why RF regulations exist everywhere). It's not that much of an expense for a government to set up a few antennas and make them put out half a megawatt of noise each.
sure, but they have to have the hardware for that ready to go, and they have to get people deploy each site and prevent it from being vandalized or disabled
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> Imagine internet beyond the grasp of control freak governments Radio jammers. There are very few technological solutions to political problems.
LEO Ka band jamming is very hard https://www.mitre.org/sites/default/files/pdf/10_2505.pdf
Cui bono? Whom would benefit from a social media organised protest/riot against the government? This comes as the Iraqi president Mahdi anounces a potential arms deal with Russia as part of a diverification of strategic allies. Until now, arms deals were exclusively with US. Mahdi has campaigned on a theme that US invlovement in Iraq has not been entirely positive.
The US (and allies) pushed Saddam into war against Iran. Then there was the Gulf War, then sanctions that reportedly killed hundred of thousands of people (remember Madeleine Albright testifying that it was "worth it"?). Then the unforgivable, unjustifiable war of 2003. Then civil war and unrest, then ISIS. Iraq has been constantly at war and suffering for 39 years and counting because of the US . Isn't imperialism w…
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Lasers between them in orbit is what I've heard, nothing about ground stations, AFAIK.
I could've sworn somebody was planning to use lasers to communicate from the satellite to a ground station, claiming it would improve latency. Maybe I misread.
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Each end (satellite and ground station) point a laser at each other, which they modulate according to the data they wish to send. The other end has a sensor (much like in a camera) that captures the light, and processes it to recover the data (demodulate). It's much like fiber optics, except over air instead of a cable.
How much power would such a laser emitter require? That is a huge distance to cover. Wouldn't it get attenuated over the distance?