CASEGovernment Office (Equipped Device)

It is a tunable filters of band-pass-type and hand-rejection-type wich can change bandwidth used with radio station.
Regarding specific frequencies, you can remove or measure interfering-wave and unwanted-wave, on the system you can not meet your requirements with frequency-fixed-filtters.
Motor controls and voltage controls are possible. And, we can make proposals based on apprications you requested.