Bruker-user.Troubles with the FFT of AC300Bruker's fid

Prof. Marcello Longeri (longerim@ccusc1.unical.it)
Mon, 15 May 1995 17:32:03 +0200 (MET)

Dear NMR collegues
When I try to FFT on a workstation within a homemade procedure a FID file
registered on a AC300 Bruker spectrometer using the standar FFT algorithm (see
e.g. the one reported in :" Numerical Recipes" by Press et al.) I get extra
unphasable lines in the transformed file. The same algorithm works properly
when applied on FID files registered on a MSL spectrometer.

Does anybody know why this happens and how to solve the problem?
Do I need to use a different FFT algorithm?

One more question. When I have a look the the first 256K block of the FID file
(transformed to ASCII characters) I am not able to identify spectral parameters
(SW, AQ and the likes) but only SI and TD

Can anybody tell me their position in the FID file and how to get them?

Thanks in advance for your kindness
M. Longeri

M. LONGERI
DIP. CHIMICA
UNIVERSITA DELLA CALABRIA
RENDE (CS)
ITALY

longerim@ccusc1.unical.it