Model Forum / Radio Controlled / Air Models / June 2004

No.  The 7C does not have a module, so you cannot change the frequency
band.  In theory it's certainly possible, but it's not a simple matter
of changing the crystals -- lots of stuff would have to be changed.

http://www.futabarc.com/faq/faq-6xsuper-q54.html

(If it were a 9C or 8U, you could, by buying a new module.)

My advice?  Sell it (in the US) -- you'll probably get much of your
money back -- and buy something with a module.  Preferable something
with a 40 mhz module already so you don't need to buy that.

Ok ...