GNSS-2 is the second era of structures that independently presents a complete civilian satellite tv for pc navigation device, exemplified by the European Galileo positioning device. These structures will provide the accuracy and integrity tracking necessary for civil navigation; together with aircraft. Initially, this gadget consisted of simplest Upper L-Band frequency sets (L1 for GPS, E1 for Galileo, G1 for GLONASS). In latest years, GNSS structures have began activating Lower L-Band frequency sets (L2 and L5 for GPS, E5a and E5b for Galileo, G3 for GLONASS) for civilian use; they function higher mixture accuracy and much less troubles with signal reflection. As of overdue 2018, a few client grade GNSS gadgets are being bought that leverage each, and are generally referred to as "Dual band GNSS" or "Dual band GPS" gadgets.
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