Ogwiritsa ntchito kwambiri ayamba kugwiritsa ntchito chizindikiro cha digitofoni, koma m'malo ena opanda maziko a Anallog Signal Telefoni imagwiritsidwabe ntchito. Ogwiritsa ntchito ambiri amasokoneza zizindikiro zokhala ndi zizindikiro za digito. Ndiye foni ya Analog ndi chiyani? Kodi telefoni ya digito ndi iti?
Telefoni ya Anallog - telefoni yomwe imatulutsa mawu kudzera m'manera a Analog. Chizindikiro cha Analog cha Analog chimatanthawuza nthawi zambiri ndikuwonetsa matalikidwe ndi chizindikiro chosagwirizana ndi magetsi, chizindikirochi chitha kukhala masingwelo a Analog cha ma Acreit osiyanasiyana, kuwonjezera, kuchulukitsa, kuchuluka. Zizindikiro za Analog zilipo ponseponse, monga kutentha kwa tsiku ndi tsiku.
Chizindikiro cha digito ndi choyimira cha digito cha chizindikiritso cha nthawi (choyimiridwa ndi gawo limodzi), nthawi zambiri limatengedwa ku Chizindikiro cha Analog.
Ubwino ndi Zovuta Za Zizindikiro Zama digito:
1, yonyamula gulu lonse la pafupipafupi. Chifukwa mzerewo umapereka chizindikiro cha kukoka, kufalitsa digitoZidziwitso za MawuZofunikira kuwerengera 20k-64kzz bandwidth, ndipo njira yongoyerekeza 4khz yokha, ndiye kuti, maakaunti a PCM siginale njira zingapo za analogi. Panjira inayake, kuchuluka kwake kumachepetsedwa, kapena zofunikira zake pamzere zimawonjezeredwa.
2, zofunikira zaukadaulo ndizovuta, makamaka technology yosinthira imafunikira kulondola kwambiri. Kuti mumvetse bwino tanthauzo la wotumizayo, wolandirayo ayenera kusiyanitsa chinthu chilichonse, ndikupeza chiyambi cha gulu lililonse, ngati vuto la intaneti likhala lovuta kwambiri.
3, Analog / Digital kutembenuka kwa digito kudzabweretsa cholakwika chambiri. Pogwiritsa ntchito madera akuluakulu ophatikizira komanso kutchuka kwa media ofalitsa nkhani monga fiberi, zizindikiro zowonjezera za digito zimagwiritsidwa ntchito posungira ndi zolakwitsa, komanso zolakwitsa zochulukirapo zimachitika potembenuka.
Post Nthawi: Feb-05-2024
