Yam ntxwv impedance ntawm Coaxial Cable: Qhov nruab nrab tus yam ntxwv impedance ntawm ib coaxial cable yog 50 ± 2 Ω. Lub sijhawm hloov pauv ntawm impedance raws ib coaxial cable ua raws li tus qauv sinusoidal, nrog rau qhov sib txawv ntawm ± 3 Ω los ntawm qhov nruab nrab nruab nrab ntawm qhov ntev ntawm tsawg dua 2 meters.
Attenuation ntawm Coaxial Cable: Qhov no feem ntau yog hais txog tus nqi attenuation ntawm 500-meter cable ntu. Thaum ntsuas siv 10 MHz sine yoj, tus nqi tsis tshaj 8.5 dB (17 dB / km); Thaum ntsuas siv 5 MHz sine yoj, tus nqi tsis tshaj 6.0 dB (12 dB / km).
Propagation Velocity of Coaxial Cable: Yam tsawg kawg nkaus uas yuav tsum tau tshaj tawm yog 0.77C (qhov twg C sawv cev rau qhov ceev ntawm lub teeb).
DC Loop Resistance ntawm Coaxial Cable: Qhov sib npaug ntawm qhov kev ua haujlwm ntawm cov kab hluav taws xob hauv nruab nrab thiab qhov kev tiv thaiv ntawm nws txheej thaiv tsis pub tshaj 10 mΩ / meter ( ntsuas ntawm 20℃). Ib qho RF coaxial cable txhais tau hais tias yog ib lub cable uas muaj ob lub concentric conductors, nyob rau hauv ob qho tib si tus neeg xyuas pib sab hauv thiab txheej thaiv txheej txheej sib koom ua ke hauv nruab nrab. Nws yog lwm hom cabling siv dav hauv computer networks. Vim hais tias nws nta ib txheej insulating qhwv ib ncig ntawm lub hauv paus neeg xyuas pib-uas yog, nyob rau hauv lem, encased los ntawm ib tug txheej ntawm braided hlau shielding- nws zoo blocks sab nraud electromagnetic cuam tshuam, yog li txhim khu kev sib txuas lus zoo.
