Fig. 13From: Performance analysis of frequency-mixed PPP-RTK using low-cost GNSS chipset with different antenna configurationsPositioning errors series and data availability for selected satellites using a low-cost u-blox receiver with a helix antenna. In the positioning errors series on the left panel, the red and blue points represent the proposed method and the traditional one used, respectively. In the data availability on the right panel, the red and blue points represent the data on the first band and the second band, respectivelyBack to article page