This filter is especially
indicated in the following cases:
- Whenever a passband filter cannot attain a sufficient
attenuation of the noise band. The twin filter, being made up of two cavities
offers attenuation values doubled with respect to the single cavity models.
- Whenever there is a need for transmission of multiple
frequencies (e.g. for Tx and Rx) while, at the same time, cutting off
the noise. The twin filter, in fact, is provided with a device that adjusts
the width of the passband starting from a single frequency up to the limits
indicated for each model.
The attenuations attainable are doubled with
respect to models: 1p215 - 1p8815 - 1p4415 - 1p43015