The D7BT-500/1000-4-N/N-GSI from K&L Microwave is a Digitally-Controlled Tunable Bandpass Filter with passbands from 500 to 1000 MHz and multiple tuning ranges. This 50-ohm filter features a high-performance cavity design with 7 to 9 sections for maximum selectivity. It has an insertion loss of 1.5 dB. The filter has Type-N (SMA Optional) connector options and GPIB standard, RS-232, RS-422 (USB optional) control interfaces. It is ideal for automated test and measurement facilities, troubleshooting co-location environments, and wireless communication applications.