xbok wrote:

What will happen if I install the microwave tube (from the microwave oven)
into the focus point of my 3 meters sattelite dish and turn on the power?

Likely you'll suffer an horrendous wavelength miss-match and it will get very hot. You might even fry parts of yourself if you are anywhere near. RF burns are VERY PAINFUL.

Just as those things can cook your goose, they can also cook you.

There's high voltages there also.

In short (ok, bad pun), this is not for careless or carefree messing about.

how far can this wave travel in space.
and what is the frequency of the this microwave?

As already mentioned on the other posts.

However, you need to look at this a lot more carefully to get any chance of being heard outside your own back yard.


Now, if you can rent some time with the multi-Tera Watt erp planetary radar pulses from Arecibo, then perhaps...

Good luck,
Martin