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The 802-RF1575.42M-J is a Surface Acoustic Wave (SAW) filter manufactured by Abracon LLC, designed for RF applications operating at a center frequency of 1575.42 MHz. This component functions as a bandpass filter within the GNSS L1 band, supporting GPS, GLONASS, Galileo, and Beidou systems. It provides signal conditioning to isolate specific frequency ranges from broader RF spectra, ensuring accurate reception of satellite navigation signals in receiver front-ends.