Finding coupling constants

1.  Move the Glide window away from the command line.
    (Use the left mouse button and the Alt key.)

2.  In the command line type >axis='h'
    This command changes the scale from ppm to hertz.

3.  Click on [Cursor] or [Box] to get a red cursor on the spectrum. 

4.  If you place the cursor on a peak, the frequency in hertz will be displayed.

5.  Using two cursors to measure couplings, the coupling constant will be displayed
    as the delta value in the window.

6.  In the axis='h' mode, peak picking will also show up in hertz.
    Specifically, you can use dpf for displaying peak frequencies and
    a plot command like pl ppf pscale page to plot the spectrum with
    peak frequencies shown in hertz.

7.  To revert to the ppm scale, use axis='p'.

8.  On the Mercury system only, a macro exists for making a plot with the scale in ppm and
    the peaks picked in hertz.  To use this macro, simply type >plothertz
    at the command line and a plot will print.

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