Components of signal General Remarks The oscillators on board the satellites generate a fundamental frequency fo with a stability in the range of 10-over one day for the block Il satellites Two carrier signals in the L-band(22 cm), denoted LI and L2, are generated by integer multiplications offo The carrier L3 is generated for military users onl For Block IIF satellites, the option of a carrier L5 for civilian use will be implemented Principles of the Global Positioning System 2005-3-18(9 The carriers LI and L2 are modulated by codes to provide satellite clock readings to the receiver and to transmit information, e.g., orbital parameters cle carrier modulated Principles of the Global Positioning System 20053-18(0 55 Principles of the Global Positioning System 2005-3-18 9 Components of Signal General Remarks z The oscillators on board the satellites generate a fundamental frequency f0 with a stability in the range of 10-13 over one day for the Block II satellites. z Two carrier signals in the L-band (22 cm), denoted L1 and L2, are generated by integer multiplications of f0. z The carrier L3 is generated for military users only. z For Block IIF satellites, the option of a carrier L5 for civilian use will be implemented. Principles of the Global Positioning System 2005-3-18 10 The carriers L1 and L2 are modulated by codes to provide satellite clock readings to the receiver and to transmit information, e.g., orbital parameters