We started using an enpac 1200 and now the spectra show the data cutoff below the 318 freqs. In the past this had to do with the filters. For the Datapac 1500 the filter had to be switched to Overall to get the data below 318 without going into long ranging. Also the resolution and max are set to get the right data. But now with the Enpac, below 318 is cutoff again. Is there a setting to get my sub 318 freqs back?? Without going to the 28 filter and long ranging? Rumors that hardware and softare conflict issues may be involved.

The enpac has a 160.2 cpm hardware filter.