The 2806 from KR Electronics (A Division of NIC) is a Low Pass RF Filter with Frequency DC to 85 MHz, Stopband Frequency 108 MHz, 3 dB Cutoff Frequency 85 MHz, Lower Rejection 30 dB@108 MHz, Upper Rejection 2 dB@108 MHz. Tags: Module with Connector. More details for 2806 can be seen below.