[dearing]

If's fun to think that our Sirius tech cousins at the BBQ under a Texas sized parabolic dish aimed at Austin would be jamming Nelly's "hot in here".

Over distance its about fighting the noise in between the source and the receiver while also fading because of the free space loss, think of a flashlight - not a laser. So nelly volume ticks down while the local stations ramp up..

To keep your car jamming you'd build a growing antenna attached to your ford festiva that as you made your way would compensate for this loss by collecting more signal to focus back to a feed horn, a parabolic - like a larger magnifying glass focusing more ant burning heat in the winter versus the summer.

Very roughly it seems it would be the size of Texas when you arrived at the BBQ, assuming you are traveling the speed of light and left in the early aughts.

You wouldn't hear the song until you hit the break because its the frequency over time that pumps the jam.

[consumer451]

> If's fun to think that our Sirius tech cousins at the BBQ under a Texas sized parabolic dish aimed at Austin would be jamming Nelly's "hot in here".

OK, but a giant parabolic dish is some parochial 20th century Earth tech.

I was imagining some little guys who create a 100 cubic AU grid of omnidirectional sensors, with a sensor every 1000km, all hooked up the mother of all DSPs. I can visualize that system identifying some pretty faint waves vibing in the noise. Am I wrong in thinking that this system could pickup AM radio really far away, easily... and once they got sick of that, even FM?

[dearing]

Each of the small detectors need to decern what is noise and what is not. They wouldn't know static from a station and having more clueless detectors wouldn't give you more any information in that regard.

An AU cubic grid of detectors would inform you where a signal originates from by comparing free space loss over the area of the coverage. IF you could discern a station from static.