The 26 of Setpember at around 22:00:00 UTC the NNF NCal started having issues and the reading of the frequency was oscillating between 5 and 20 Hz (NCals_vim.png).

Today I investigated this issue and found that the pulse thresholds for NNF were not correct so I fixed the values in the config.

I restarted all the NCals at the same frequencies as before the NEF issues (NCals_fixed.png): NEF @ 20.1 Hz, NEN @ 20.4 Hz, NNF @ 20.2 Hz, NNN @ 20.5 Hz, NSF @ 20.3 Hz, NSN @ 20.6 Hz

The phase loops were closed at 9:02:45 UTC September 28