In article ,
"Geoffrey S. Mendelson" wrote:

Unfortunately if they are properly made, they are illegal to use in the US
and other places in the world.

Not for a Hams in the USA, with a Tech or higher License, on the Ham
portion of the 2.4 Ghz band... We can use up to 1 Kw output power, not
in a Pringles can, but with the appropriate Feedhorn, and an old 8 ft
TVRO Dish, Moon bounce is a very real activity. It is the Tracking
Hardware that gets expensive.... that and the 2.4 Ghz TWT's.....