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Press 1 (Select cursor)
This toggles between the two cursor lines. Only the longer dashed
cursor line can be moved.
Press 2 (Low cut-off)
When the left cursor line has be selected the low cut off option is
displayed. Move the left cursor to the required position and press 2. This will remove all
frequencies to the left of the cursor line. Removed frequencies are displayed in a cyan colour.
In this example the cursor was moved to 257Hz and a low cut off was selected, so all
frequencies from 0Hz to 257Hz will be removed.
Press 2 (High cut-off)
When the right cursor line is selected the high cut off option is
displayed. Move the right cursor to the required position and press 2. This will remove all
frequencies to the right of the cursor line. Removed frequencies are displayed in a cyan
colour. In this example the cursor was moved to 505Hz and high cut off was selected, so all
frequencies from 505Hz and above will be removed. By pressing ENTER to accept the data
would mean frequencies between 258Hz and 504Hz only are being used to process the
current correlation.
