The D5TNF-650/1000-1.4MHZ-N/N-GRI from K&L Microwave is a Tunable Filter with Frequency 650 MHz to 1 GHz, Bandwidth 7 MHz, Rejection 40 dB @ 1.4 MHz, Insertion Loss 1 dB, Supply Voltage 28 V. Tags: Benchtop, Digitally Controlled. More details for D5TNF-650/1000-1.4MHZ-N/N-GRI can be seen below.