vanemleitnant kirjutas:Sombi kirjutas: Teed nalja või? Takistitel kaob pool võimsust
Huvitav, mis sinu arvates splitteri sees on, kui mitte takistid?
Henkka pakutud lingis on selgelt kirjas, et:
Types of RF splitter combiners
There are two broad categories of RF splitters:
Resistive power splitters: As the name implies, these power splitters and combiners use resistors. While they are able to maintain the characteristic impedance of the system, the use of resistors introduces loss above that of the minimum caused any splitting action. They are cheap and easy to make.
Hybrid power splitters: Hybrid splitters use transformers and are able to provide low levels of loss. Although there are some physical losses in the transformer, the major "loss" is that arising from the splitting process as the same signal is shared between a number of outputs.
Kas sa arvad, et näiteks takistuse sobitamine tomib ka nii ühtlaselt: Sul on 8Oomise väljundiga võimendi, aga tahad ühendada külge 4Oomist kõlarit. Mis teed? Paned nelja oomise takisti vahele või kasutad trafot?