...
.
Station 1 is the obvious outlier, and it shows the lowest signal level as shown inhttps://wiki.ucar.edu/x/A4giB
Note that starting at 00:00 UTC (17:00 MST) every day, the previous days files are downloaded from each station. This process takes about 1/2 on each station (longer on isfs1). During the downloads the ping times will be longer.