Precise Point Positioning (PPP) makes use of the undifferenced pseudorange and copyright phase measurements with ionospheric-free (IF) combinations to achieve centimeter-level positioning accuracy. Conventionally. the IF ambiguities are estimated as float values. To improve the PPP positioning accuracy and shorten the convergence time. https://www.jmannino.com/flash-pick-NHL-Edmonton-Oilers-Camo-iPhone-11-Pro-Max-Skin-p69200-super-choice/