The 16522 from Microwave Filter Company is a Waveguide Filter with Frequency 10.7 to 12.75 GHz, Insertion Loss 0.1 dB, Operating Temperature -55 to 7 Degree C, Rejection 70 dB, Rejection Frequency 13.75 to 14.50 GHz. Tags: Low Pass. More details for 16522 can be seen below.