Edited HMBC program

#  Andrew J. Benie and Ole W. Sørensen
Improved multiplicity-editing of HMBC NMR spectra
Magn. Reson. Chem.   in press  2006
# Nils T. Nyberg and Ole W. Sørensen
Multiplicity-edited Broadband HMBC NMR spectra
Magn. Reson. in Chem. 44 451-454 2006 

Echo/Antiecho gradient selection
uses a 3rd order low-pass J-filter for suppression of one-bond correlations

Using decoupler channel 1 for X-pulses
Flags:
 presat	y:   presaturation during relaxation delay
        n:   no presaturation during relaxation delay
 edit   y:   up/down spectrum
        n:   standard H2BC
	
Pulses and Powers:
 pw	90 degrees transmitter
 pwx	90 degrees decoupler 1
 pwlvl	90 degrees transmitter hard pulse power level
 pwxlvl	power level for decoupler high power
 tpwr   transmitter high power level
 satpwr	power level for saturation of solvent signal using transmitter 
        during relaxation delay 
 satdly	duration of presaturation
 satfrq	presaturation offset
 ALT	flag to use an alternative gradient scheme
 
Coupling constants
 Jmin smallest 1J(XH) for LPJF setting
 Jmax largest 1J(XH) for LPJF setting
 Jxh optimal 1J(XH) for editing set to the average of Jmin and Jmax. You
     can however, alter this value if for instance you have one or two 
     carbons with radically different 1J(CH) and you don't mind having
     more crosstalk for these. In this case set to the average
     of the 1J(CH)s of the rest of the spectrum

Delays
 DELTA  HMBC evolution delay

Gradient settings
 gt1     length of the gradients used ca. 1msec
 gzlvl1  max size of gradients.for J filter
 gzlvl2  max size of gradients.for coherence selection
 gstab   gradient recovery delay
 ALT	flag to use an alternative gradient scheme

Other settings
 array='edit,phase' (for processing with VNMR )
 MRC flag to select the scheme of Nyberg & Sørensen
 
Processing:
 A: wft2d(1,0,-1,0,1,0,-1,0,0,-1,0,-1,0,-1,0,-1)
 B: wft2d(1,0,-1,0,-1,0,1,0,0,-1,0,-1,0,1,0,1)

Version History:
 Version 1: Initial release 08/02/06 by Dr. A.J. Benie

Testing Information:
vnmr61C:Inova 500:Solaris acquisition host (Works OK)
vnmrJ1.1D:Inova 800:Solaris acquisition host (Works OK)
vnmrJ1.1D:n/a:Linux data station (compiles and displays OK)
vnmrJ2.1B:Inova 500:Linux acquisition host (Works OK)

Disclaimer:
 This pulse program has been tested and found to be working on our
 spectrometers, but adjustments in pulse program syntax and/or
 parameter sets may be necessary for other hardware configurations
 or systems. Please pay attention to the requirements of your system,
 when implementing this pulse program. The Carlsberg Laboratory or
 the Instrument Center does not make any warranties with respect
 to this software. In no event will Carlsberg  Laboratory or the
 Instrument Center be liable for any loss, damages of any nature
 arising or relating to the use or performance of this software.