Filters

Use of filters is the most effective way to secure electromagnetic compatibility in RF signal transmitting devices. We offer different kinds of band-pass and notch filters for TV and FM transmitters.

Band-pass filters are used to suppress out-of-band emission of transmitters. They are based on coaxial cavity resonators. Number of cavities is 3–6. There are following kinds of filters:

• channel filters UHF band 200 W, 2 kW, 5 kW, 10 kW;
• channel filters VHF band 500 W, 2 kW, 5 kW, 10 kW;
• FM filters (66–74 and 87,5–108 MHz) 2 kW, 5 kW.

Notch filters are used to suppress selectively spurious emissions of a transmitter in a rather narrow band. They are based on coaxial cavity resonators. Number of cavities is 3–6. Maximum power of notch filters is 10 kW.

We can design specific filters on request.