The C3705 from Mercury Systems is a Low Pass RF Filter with Frequency 1 to 7000 MHz, Stopband Frequency 10000 to 11000 MHz / 11000 to 25000 MHz, Insertion Loss 0.5 dB, Rejection 25 to 40 dB, Upper Rejection 25 to 40 dB @ 10000 to 25000 MHz. Tags: Module with Connector. More details for C3705 can be seen below.