The ACTR303.875/303.875/F11 from Advanced Crystal Technology is a SAW Resonator with Frequency 303.8 to 303.95 MHz, Centre Frequency 303.875 MHz, Insertion Loss 1.3 to 1.8 dB, Capacitance 2.3 to 2.9 pF, Quality Factor Loaded 1950. Tags: Drop In, SAW Resonator. More details for ACTR303.875/303.875/F11 can be seen below.