Futaba 3GR-FS 40Mhz

[tdi250]

Does anyone know where I can get a manual for the 40Mhz version of the Futaba 3GR-FS transmitter?

I can only find a copy of the 2.4Ghz version online, which to be fair is probably exactly the same apart from how you change the frenquecy your using? and obviously I need to be able to do this.

Or failing that does anyone know how to do it? I've tried playing around with it and I can figure out how to change every other setting apart form the frequecy.

Pretty please!!