10GHz (3cm)

Microwaves have largely passed me by. Apart from making a Gunn oscillator in the 1970s  (I think) in some waveguide and testing it over about 10m indoors, I have done nothing at 10GHz. I did borrow a 1296MHz RX converter and did some tests many years ago.

Some take microwaves very seriously and regularly achieve some remarkable distances, often by rain scatter. Others play at 10GHz with WBFM.

See https://sites.google.com/view/g3xbm4/home/vhfuhfmicrowaves/homebrew/10ghz .

10GHz homebrew

Confession time: I have done very little on microwaves.  My excuse is that, in such a diverse hobby, one cannot do everything. 

Instead, I did some work at 481THz optical with results far exceeding expectations. Test gear was easy to make as was all the actual operating kit.

Many have accessed microwaves with very low cost modules obtainable online. With many of these, the microwave engineering is minimal or non-existent. Many have experimented with ATV at 5.6GHz and 10GHz this way. Several have made wideband FM transceivers at 10GHz this way.

See https://sites.google.com/view/g3xbm4/home/vhfuhfmicrowaves/homebrew/10ghz .

Backscatter compendium

The microwave bands are an area of amateur radio that I have never got seriously interested in, although we can only do so much I guess. Quite a few people are doing ATV at 5.6GHz using low cost modules.

Years ago I bought the "Backscatter compendium". This is now available free to download. 

See https://www.microwavers.org/backscatter.htm .