The 2590-3 from KR Electronics (A Division of NIC) is a Band Pass Filter with Frequency 57.8 to 72 MHz, Bandwidth 14.2 MHz, Center Frequency 64.9 MHz, Insertion Loss 1 dB, Rejection 50 dB. Tags: Module with Connectors, Lumped Component Filter. More details for 2590-3 can be seen below.