Mark B. After Travis tweaked the BSFM02 on the solid stack, I retested it. I gave up on the Matlab script for data taking and used some DTT templates that Jeff K pointed me to. The data is at ^/trunk/BSFM/X1/BSFM02/BUILD01/SAGM1/Data/2012-09-25_1100_X1SUSBSFM02_M1_*_WhiteNoise.xml I modified the standard analysis script to use H2:FMY in the channel names but X1:BSFM02 for the data directory and plot labels. The modified version is ^/trunk/BSFM/Common/MatlabTools/plotBSFM_dtttfsBSFM02.m The data is a tiny bit noisy, having been taken in the middle of the day, but all the peaks are in the right places and the spurious 11 Hz peak is gone.