The origin of the problem was located in the part of the source code which reads the DFE filename. Please refer to Otani et al. 1994 in ASCA Newsletter vol.2 for details of Echo and DFE corrections. You can skip over it if you're already familiar with the material.
Users have two options.
This is not simply predictable. The date of the processing is on the first line. The data processed in 1994 are all done under ultrix, so the DFE correction will be incorrect. If your data were processed in 1995, please check the Hostname. If your data is processed on either of the Ultrix machines, then the DFE correction will be incorrect.