Atheros ART file - supports dual band?

Hi - I'm working on a board that has the Atheros 9344. It supports both 2.4 GHz and 5 GHz bands. I have the ART files to support it independently working in either one of them.
So this is possibly a newbie question: can a single ART file support both 2.4 GHz and 5 GHz simultaneously? Has anyone done it and is it stable?

yes. at least according to USB cards eeprom. try to get a copy of some ART file for a dual band device and check it