Tipton, KS | epw - 5/15/2026 22:09
20+ satellites. Elevation mask 20°
Unknown if atmospherics, Tx/Rx transmissions, or Trimble NetR9.
>Seems to be more likely to happen farther away
Geomagnetic storms - "Dual-Frequency/RTK Receivers (Agriculture, Surveying): Centimeter-level accuracy can degrade. The receiver may lose its "fixed" lock on the signal and revert to a less-accurate "float" mode."
Atmospherics - It was said years ago, that setting up a base station at the field is needed. With today's multi-frequency receivers, better tech to deal with ionospheric conditions....but with Trimble NetR9 being of 2010 tech, and Topcon's tech----Continuously monitors ionospheric conditions and rapidly switches to iono-free combination if ionospheric disturbances have been detected---I don't know if 4 good satellites info are being sent to Topcon unit.
If this is true, "Seems to be more likely to happen farther away...," it could be geomagnetic storm related
At NOAA Space Weather, one could subscribe
https://www.swpc.noaa.gov/content/subscription-services
 (Screenshot 2026-05-16 064040 (full).jpg)
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Topcon AGS2 RTK fix issue
