GNSS quality viewer. Shows the current fix quality (e.g. RTK, FloatRTK, DGPS), number of satellites observed, and the horizontal delusion of precision.
Here's what it looks like when running this program:
[INFO] [1516565360.176049, 1516434271.302132]: Number of satellites increased from 13 to 14
[INFO] [1516565360.176934, 1516434271.302132]: HDOP decreased from 0.82 to 0.8
[INFO] [1516565362.278148, 1516434273.404360]: Number of satellites decreased from 14 to 13
[INFO] [1516565362.278737, 1516434273.404360]: HDOP increased from 0.8 to 0.89
[INFO] [1516565362.480976, 1516434273.606435]: Fix quality changed from GPS to FloatRTK
[INFO] [1516565362.481327, 1516434273.606435]: Number of satellites decreased from 13 to 7
[INFO] [1516565362.481569, 1516434273.606435]: HDOP increased from 0.89 to 2.13
[INFO] [1516565366.578242, 1516434277.697674]: Fix quality changed from FloatRTK to RTK
[INFO] [1516565366.579443, 1516434277.697674]: Number of satellites decreased from 7 to 6
[INFO] [1516565366.580347, 1516434277.697674]: HDOP increased from 2.13 to 3.94
[INFO] [1516565366.778482, 1516434277.899627]: Fix quality changed from RTK to FloatRTK
[INFO] [1516565366.779559, 1516434277.899627]: Number of satellites increased from 6 to 7
[INFO] [1516565366.780447, 1516434277.899627]: HDOP decreased from 3.94 to 1.91
[INFO] [1516565366.877559, 1516434278.000723]: Fix quality changed from FloatRTK to RTK
[INFO] [1516565366.878753, 1516434278.000723]: HDOP increased from 1.91 to 2.6
[INFO] [1516565366.980365, 1516434278.101749]: HDOP decreased from 2.6 to 1.82
[INFO] [1516565367.079611, 1516434278.202733]: HDOP decreased from 1.82 to 1.8
Quality : RTK
Num Sat : 7
HDOP : 1.8
MIT
Naoki Mizuno (mizuno.naoki@rm.is.tohoku.ac.jp)