Radio waves

[YT2095]

I`m sure most are aware of the EM (Electro Magnetic) Spectrum.

radio waves start where sound stops (roughly 30Khz).

Radio waves depend on a magnetic feild fluctuation (as does all phenomenon in the EM spectrum).

IF a fixed magnet where to be rotated or physicaly moved at a rate of 30Khz or greater, would it broadcast a carrier wave?

 

Edit: to aviod confusion as to my question, I`ll try a restate;

If a permanent magnet were to vibrate at 30Khz or above, would it emit R.F (radio frequency) ?

 

[wolfson]

Are you meaning to modulate a simple sine wave on a carrier wave???

[YT2095]

not to modulate, as that would involve side oscilations on the 30khz+ freq.

 

I just mean the carrier, a constant signal being transmitted with no sub signals on the wave

[Kedas]

To create an electromagnetic wave you have to accelerate a electric charge.

 

It starts from 0Hz to ?infinity?Hz

 

But it only starts to travel in air/vacuum if the frequency is high.

 

So the answer would be Yes it will generate an elektromagnetic wave.

(if you will be able to detect it is an other question.)

[YT2095]

well hypotheticly then, if a permanent magnet were to Vibrate against another magnetic feild at say,,, 150Khz a simple LongWave radio receiver should be able to pick it up as a dead carrier (a quiet space, with no white noise as on unused or between station frequencies).

that`s more or less what I though as well, I just wanted some confirmation of this

 

although ANYMORE input from those in this area of science would be welcome!

[Radical Edward]

an incredibly weak one!

[YT2095]

why do you say weak?