I would like to find a project or circuit design for a device that can disrupe those loud car sound systems by inserting a feedback signal into the Amp., as they past by the house. They are annoying me @ all hours of the night, so I want to annoy them everytime they past the house. Any ideals?

 

To each his own... If they like to play their stereo loud, let them...

But, beeing one of those loud ones myself :P ... I regret to inform you most of us play a CD or MD (not radio), so there's nothing that can interfere with it ...

 

Air Rifle? Spikes in the road? Some flashing blue lights?

Perhaps. Anyway, all I can think of is something based on the effect that mobile phones have on speakers (the noise that the interference causes when someone rings you). However, this wouldn't stop the 'music', it would just annoy the people in the car - maybe thats what you want?!?

Tim

 

if you're gonne use that on everything that makes noise then there won't be much truck's left by the end of the day :lol:

That will only work close by (in the car)... Or you have to use mobile phone signals at very high intensity wich would also affect all other systems in the neighborhood (your own tv, radio, electro equipment, as well as your neighbors ...). Secondly, because of all the commotion mobile phones caused (possibly beeing hazardous for health) I don't think using it at much greater intensities would be safe ...

And it would probabely be illegal...

Perhaps the most realistic approach would be to just deal with it ...
everything in our modern world makes noise. trucks, planes, the neighbor mowing his lawn.... If you can't stand that then put plugs in your ears or go live in a jungle ... and even there it's full of noise

 

Get thicker acoustic insulation.

 

VERY illegal. You can potentially be fined many thousands of dollars for this. Radio stations pay lots of money to broadcast and licensing.

 

Several years ago when I lived next to a very busy street, I thought it would be handy to have a short-range missle, similar to a stinger, which would home in on the source of high volume, low-frequency sound. But then I thought, whos gonna clean up all those blown-up cars just down the street? Another idea was to design a EMP (electromagnetic pulse) generator where you could simply pull up behind or beside the source and zap it with EMP and burn out his gear. But with all the computers and such in cars nowadays, shielding my OWN car from EMP was the problem. In the end, I moved, but mainly because my landlord was a jerk. Just last year though, our city began enforcing a noise ordinance to cut down on the "thump stereos". If the cops catch you doing it, first time it's a warning, second time it's a ticket, third time they confiscate the gear. It's quite a bit quieter here than before ...

 

As a last resort there is allways EMP!
:twisted:

and allthough crude schematics and theory papers can be found
on the web , well... it would make an interesting project.

 

ahh good old EMPs i have been read my of the forms where people are having problems with electronics annoying them and it always comes down to making an EMP :twisted:

__________________
it\'s not volts that kill, it\'s amps

 

And yet has anyone ever created an EMP device that did anything??

As far as I know, while military almost certainly has non-nuclear EMP generators with some useful result, all the homebrew stuff is about as fictional as the perpetual motion machines people claim to have made.

It sounds plausible to cook sensitive electronics at a few inches or maybe a few feet with a massive enough device. A magnetron can do that, but I just I can't imagine a homebuilt device creating an area effect or focused ranged effect. Affecting stereo equipment shielded inside a car frame is much less possible on top of that. Cops have wanted to be able to fry a car's computer from an external attack, and despite all the money on the table, nobody's come up with such a device. Of course, if it's not focused, it would endanger all the video and computer systems inside the police cruiser too, as well as the cruiser's own engine computer. Presumably, if an EMP device with a significant range could be homemade, it would already have gotten into the news for causing trouble even while being tested unless you want to subscribe to a massive government coverup theory.

Still everyone seems to talk about them as if you could just throw something together like a Tesla coil.