The RSR-91.00-80-S from Raltron is a SAW Resonator with Frequency 91.24 MHZ (1 Channel) / 97.24 MHz (2 Channel), Centre Frequency 94.24 MHz, Insertion Loss 3 dB (Resonant Loss), Capacitance 4 pF, Operating Temperature -10 to 60 Degree C. Tags: Drop In, SAW Resonator. More details for RSR-91.00-80-S can be seen below.