-   SUDDEN IONOSPHERE DISTURBANCE (SID) MONITOR   -
QTH: APPINGEDAM, JO33KH - THE NETHERLANDS -  EUROPE

My SID detector PC did crash last winter, but now I get back slowly into the SID dectector business again with SIDdetector V2.0. What you see here below is the live signal level plots of several VLF and LF stations as Identificated in the bottem line of the plot. Right now there is NO alarm broadcasted when a SID happens like there was in SID detector V1.0 via twitter @SIDdetectorNLD.

The yellow graph around the base at -40dB (right scale) is the "propagation turbulence indicator" ( PTI ).
The red line at -38 dB used to be the alarm trigger limit.

That other yellow sine grap is the sun altitude indicator.