2.4ghz to 900mhz converter

Some ideas you can find here :
http://www.qsl.net/n9zia/

Bye !

Some good articles:

hxxp://www.qsl.net/n9zia/trans/index.html

and schematics

hxxp://www.qsl.net/n9zia/trans/2400_900_new-1.png
hxxp://www.qsl.net/n9zia/trans/2400_900_new-2.png

rgds, Al

has anyone successfully built one based on gbppr's design?