Comparing Bruco runs made when the 48 Hz line is visible to those when it is not reveals correlations with ASC-OMC and OMC-ASC channels. The strength of the correlations increases when the strength of the loine increases. The correlation is not present when the line is not visible. Results were obtained for 2019-07-26, at 11:30 UTC (line present) and 8:00 UTC (line absent), and on 2019-08-04, at 9:32 UTC (line present) and 13:20 UTC (line absent). On 2019-08-04, the line was stronger when present than on 2019-07-26 and the period chosen for its absence had the line amplitude below the mean in a normalized plot.  All runs were for 10 minutes. Relevant excerpts of the results are attached with appropriate labels in the order mentioned above. More details and links to the full Bruco results may be found in the attached .pdf.