The R992 from Qualcomm is a SAW Resonator with Frequency 433.94 MHz, Centre Frequency 433.94 MHz, Insertion Loss 1.5 to 1.9 dB, Capacitance 2.4 pF, Quality Factor Unloaded 7800 to 11000. Tags: Surface Mount, SAW Resonator. More details for R992 can be seen below.