TV broadcasting transmission systems

TV broadcasting transmission systems

TV broadcasting transmission systems

Cable sib dhos, kav hlau txais xov thiab circulators txuas, xa thiab radiate teeb liab nyob rau hauv lub TV tshaj tawm xov xwm kis tau tus mob.

1. Cable sib dhos: Ib qho kev tshaj tawm xov xwm yuav tsum xa cov teeb liab los ntawm lub tshuab xa mus rau lub kav hlau txais xov rau kev sib kis. Cable sib dhos muaj xws li cov kab sib txuas, cov khoom siv, cov khoom sib txuas, thiab lwm yam, uas ua lub luag haujlwm ntawm kev sib txuas thiab xa cov teeb liab.

2. Kav hlau txais xov: Lub kav hlau txais xov ntawm lub tshuab xa xov hluav taws xob feem ntau siv ib nrab- wavelength lossis full-wavelength kav hlau txais xov, uas yog siv los hloov cov teeb liab xa mus rau hauv hluav taws xob tsis muaj zog thiab tawg mus rau hauv qhov chaw.

Base chaw nres tsheb (3)

3. Circulator: Circulator yog ib qho tseem ceeb hauv kev tshaj tawm xov xwm, siv los ua kom haum rau qhov impedance ntawm lub feeder thiab kav hlau txais xov kom ua kom qhov kev sib kis tau zoo tshaj plaws, lub circulator muaj cov yam ntxwv ntawm kev ua haujlwm siab, ruaj khov thiab kav ntev, uas tuaj yeem txhim kho tau zoo. qhov kis tau tus mob ntawm cov teeb liab tshaj tawm.


Post lub sij hawm: Jun-25-2023