On my pyra, xev says when pressing [fn]+[n]:
KeyPress event, serial 38, synthetic NO, window 0x2c00001,
root 0x3af, subw 0x0, time 22506832, (-466,100), root:(612,154),
state 0x0, keycode 49 (keysym 0x60, grave), same_screen YES,
XLookupString gives 1 bytes: (60) "`"
XmbLookupString...