DVB-T and DVB-H filters - non critical mask

factory tuned to the desired operating channels. All filters are retunable on whole frequency bands IV and V.

Band-pass filters are used to attenuate frequencies outside a narrow pass-band. They are commonly used as components in the design of combiners, for the attenuation of noisy side bands, to achieve additional decoupling between transmitters installed in close proximity in the same antenna system, and to combine digital channels with existing analogue channels.The BF4-3CpppD band-pass filter consists of three magnetic coupled coaxial resonators with adjustable coupling and BF4-4CpppD with four. Additionaly BF4-6CpppD are assembled with 6 resonators.One end of the resonator is open-circuited and the other short-circuited, and tuning is accomplished by rotating the circular central conductor at the lower end of each resonator. The coaxial input and output lines are coupled to the first and last resonator by magnetic coupling loops.

DVB-T and DVB-H filters - with critical mask
DVB-T and DVB-H filters - with critical mask

Band-pass filters are used to attenuate frequencies outside a narrow pass-band. They are commonly used as components in the design of combiners, for the attenuation of noisy side bands. Additionally, to achieve additional decoupling between transmitters installed in close ...

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