Could this be done on 2.4GHz?

[hectic]

ATV transmitter from microwave oven magnetron:
http://www.n5dux.com/ham/files/pdf/ATV% ... 20Oven.pdf
It looks like NBFM is also possible! How's up for some 2.4GHz DX:ing?

This text file in turn references that first one and mentions that someone getting 650W pep out from one.
http://www.qsl.net/kd6pag/usenet/MicrowaveOvenXmtr.txt

And here's some more talk:
http://www.dxmaps.com/discuss/oven.html
That one is interesting due to the OH2AUE mention that if one magnetron is phase locked and a second one is driven to the same waveguide, the second magnetron will injection lock to the first one, giving double the power quite easily.
There are also some scientific papers out there on the subject. The most interesting one dealt with using magnetic bias for phase locking the magnetron. Using an electromagnet to do it would be advantageous because that would save one from building the 4.5kV regulator for the magnetron supply voltage.

I have a design somewhere on how to convert a microwave oven into an atv transmitter producing 250W

As kr0ne said to cowpat, 'pictures or it didn't happen'

The first pdf file has some pictures.

Earth-Venus-Earth bounce with a large dish and phase locked 2.4Ghz magnetron:
http://www.qsl.net/dl4yhf/speclab/earth_venus_earth.htm


In addition to magnetrons, scrap dealers and ebay have tons of used 3g amplifers for the 2140MHz band, and those have the potential to produce some serious power on the 2.3GHz/2.4GHz bands. A "50W WCDMA" amplifier will gladly do +200W SSB after being tuned up.

[albrecht]

I have a pair of Motorola 2.4 ghz handsets, in some situations they work better than PMR446 despite the 100mw output. The antennas are removable, therefore . . . beams etc.

[hectic]

Yep, beams are perfectly doable on that band, and easily and cheaply available commercially for wifi use.
Unfortunately some of the wifi stuff is also quite crap.

[Mattylad]

Look at the ubiquiti antenna gear etc.
Some of the guys at the club are discussing setting up networks with this stuff, creating a mesh that would allow CCTV to be transmitted over it.
And they are getting 16 miles without problem - as long as it's line of site.

It's what we will be using for an internet connection when up top of some hills.

[hectic]

Yeah Ubiquiti is really nice gear for a good price. But sometimes you just want to play the roulette and buy a 6eur chinese 2.4GHz beam to how bad it is (it is bad).