New TopShim run: version = topshim 2.1.0 date = 2021-12-23 time = 17:00:18.437 command = topshim tunea FINE SHIMMING Parameters: probe = Z168276_0016 solvent = H2O+DMSO shim nucleus = 1H nucleus optimised for = 1H o1p (set) = 4.70 ppm Results: 1D Shimming: Iteration 1: FWHM Before= 0.9 Hz, Target= 0.3 Hz, After= 0.2 Hz Iteration 2: FWHM Before= 0.2 Hz, Target= 0.3 Hz, After= 0.4 Hz Iteration 3: FWHM Before= 0.4 Hz, Target= 0.3 Hz, After= 0.8 Hz Iteration 4: FWHM Before= 0.8 Hz, Target= 0.3 Hz, After= 0.3 Hz Iteration 5: FWHM Before= 0.3 Hz, Target= 0.3 Hz, After= 0.3 Hz Shim succeeded Lineshape quality factor (1D spectrum, spinning) = 0.402 Performing tune after shimming NOTE: The lock signal appears to be unstable. This affects the performance of the tune algorithm! tune lock level increase = 1.0 shim changes: Z +86 Z2 -7 Z3 +30 Z4 +306 Z5 -174 Z6 -2047 Z7 +421 Z8 +11733 X +8 XZ -1 Y +56 YZ +8 duration = 1 min 50 sec completed successfully finished Thu Dec 23 17:02:07 2021 ========================================================================