In an effort to complete work at the vault and vault power room prior to the dry season we have been pushing hard to get the readbacks for the Seismic and LEMI channels in the vault operational.  Many issues impede this work, including but not limited to bugs, mice and their biproducts, bees, goat heads, snakes, dirt, weather, spotty communication to the control room, etc...  Currently the seismic reset resides inside of a bees nest.

The FIBOX is a system that can read in an audio signal (seismic and magnetic LEMI signals) and transmit them via multi mode fiber over long distances.  Our system has three Seismic channels, X, Y, and Z, and two LEMI channels X and Y.

Over the past week we have tried resetting the FIBOX's, replacing them with freshly calibrated units, we carried everything back to the lab and tested it, carried everything to MID X and tested the throughput.  After testing the FIBOX's at MID X with a local fiber, I can report that all of the channels are working as designed in this controlled environment.  The ADC inputs also work when a signal is injected into them.

When the FIBOX's are placed in the vault the seismic channels look bad, I assume it is because we cannot reset the seismic system (reset located in bees nest).  The LEMI signals also look bad.  Next step will be to read the signals directly with an oscilloscope and inject signals directly with a function generator out in the vault.

Everything is reconnected in the vault as of 3:00pm PDT.