Reports until 18:22, Thursday 14 March 2019
H1 DetChar (DetChar, ISC)
craig.cahillane@LIGO.ORG - posted 18:22, Thursday 14 March 2019 - last comment - 11:03, Friday 15 March 2019(47542)
Added Intensity, Frequency, and 9 MHz Intensity Lines at around 74 Hz 
Dan Brown, Craig

We are injecting lines into the DARM spectrum as follows:

Intensity: 76.4 and 3250 Hz
Frequency: 74.7 and 4500 Hz
9 MHz AM:  72.3 Hz
Comments related to this report
jenne.driggers@LIGO.ORG - 11:03, Friday 15 March 2019 (47561)
Link

The Frequency line made it impossible to lock :( 

I disabled the common mode board excitation input, and we're back on track, almost locked.  I still see a giganto line from the other 2 excitations however.