Hi, thanks for your answer.

    So i am sure the frequency is correct ie a 440Hz tone will show up thus. Its just the note name assigned to it - below the frequency in the orange box seems out by one octave. With no sound playing or even anything on the channel just dragging the mouse over the frequency range in spectrum shows C4 as being in the 520 Hz area which is C5. Confused!

    I am certain there is a logical reason/ answer but im still stumped.

    Thanks for your help!
    Olly B 5 years ago