The 3TNF-800/1000-0.2-N/N from K&L Microwave is a Tunable Filter with Frequency 800 MHz to 1 GHz, Bandwidth 1.6 to 2.6 MHz, Input Power 50 W, Insertion Loss 0.5 dB. Tags: Benchtop, Mechanically Controlled. More details for 3TNF-800/1000-0.2-N/N can be seen below.