The ST0543-00-N06-U from Amphenol RF is a GPS/GNSS Antenna with Frequency 1574.42 to 1576.42 MHz / 1597 to 1607 MHz, Gain -0.5 to 2 dB, Impedance 50 Ohms, Bandwidth 8 MHz, Return Loss -10 dB. Tags: Embedded, Low Profile, Ceramic. More details for ST0543-00-N06-U can be seen below.