RF coaxial Cable Kuv ntseeg tias koj tsis paub nrog cov khoom no, RF coaxial cable tau tam sim no tau siv ntau thiab ntau dua. RF coaxial cable yog hais txog ob tug neeg sib tham, thaum tus neeg xyuas pib thiab kev thaiv shielding sib koom tib qhov kev sib tw. RF coaxial cable insulation khoom yog tsim los ntawm ib lub cev cannon-made polyethylene insulated tooj hlau conductor, sab nraum lub puab insulating khoom yog lwm txheej ntawm annu conductor namely txheej conductor, tus neeg xyuas pib siv siv tooj liab rau daim, weld, khi lis, los yog siv cov qauv txhuas hauv txhuas, los yog siv cov qauv khawm, ces tag nrho cov kab no yog them los ntawm cov khoom siv PVC. Qhov no yog RF coaxial cable.
(1) Tus cwj pwm impedance ntawm coaxial cable yog 50, thiab lub impedance ntawm coaxial cables raws tib lub axis yog sine wave, qhov chaw nruab nrab yog Yan, thiab nws ntev yog tsawg dua 2 meters.
(2) Kev poob qab ntawm coaxial cable feem ntau yog hais txog qhov nqi ntawm tus kabmob 500-meter-ntev. Thaum ntsuas nrog 10MHz sine wave, nws tus nqi tsis tshaj 8.5db (17db km); thaum lub 5MHz sine wave yog ntsuas, nws tus nqi tsis tshaj 6.0db (12 b km).
(3) Cov lus ceev xwm txheej ntawm coaxial cable yuav tsum muaj qhov tsawg kawg ntawm kev ceev ceev ntawm 0.77C (c yog qhov ceev ntawm lub teeb).
(4) Qhov tsis ua haujlwm ntawm tus neeg tsav tsheb ntawm DC Loop ua kab ntawm lub coaxial cable tsis ntau tshaj 10 millisieverts / m (ntsuas hauv 20 Tsib). RF coaxial cable yog hais txog ob tug neeg sib tham, thaum tus neeg xyuas pib thiab kev thaiv shielding sib koom tib qhov kev sib tw. Nws yog lwm hom hlau siv dav hauv computer network. Vim tias nws nyob rau hauv txoj kab hluav taws xob cov khoom tseem ceeb, sab nraum cov khoom siv insulating muaj ib txheej ntawm cov mesh woven shielded hlau kab, ces nws yuav zoo heev los thaiv qhov sab nraud electromagnetic cuam tshuam, kev sib txuas lus zoo.
Qhov zoo ntawm RF coaxial cable yog qhov uas nws tuaj yeem txhawb kev sib txuas lus ua ke ntawm kev sib txuas lus ntawm ib lub sijhawm ntev ntev uas tsis muaj kev rov ua dua, thiab nws qhov teeb meem tsis zoo: ib qho yog qhov loj me, qhov kab ntawm lub cable yog 3/8 nti tuab, tus nqi ntawm qhov chaw nyob hauv cov raj yas; qhov thib ob yog qhov tsis muaj peev xwm ua rau kev siab ntsws, siab thiab loj tho, uas ua rau cov kab hlau thaiv kev puas tsuaj, tiv thaiv kev sib kis ntawm lub teeb liab, thiab thaum kawg tus nqi siab, thiab tag nrho cov kev tsis haum no yog cov khub uas twv tau kov yeej, LAN ib puag ncig, Yeej tau raug hloov los ntawm qhov kev qhia tawm ntawm Ethernet lub cev txheej raws li kev sib tw twisted.
