The 10CSP-305/X29-O/O from K&L Microwave is a Band Pass Filter with Frequency 292 to 320 MHz, Bandwidth 28 MHz, Center Frequency 14 MHz, Insertion Loss 1.5dB, Return Loss 15 dB. Tags: Module with Connectors, Helical Resonator Filter. More details for 10CSP-305/X29-O/O can be seen below.