The QRF-1920-1980-35 from Qualwave is a Band Stop Filter with Stopband Frequency 1920 to 1980 MHz, Bandwidth 60 MHz, Insertion Loss 2 to 3 dB, Rejection 35 dB, Power 50 W. Tags: Module with Connectors. More details for QRF-1920-1980-35 can be seen below.