Ib leeg / Dual channel extinction ratio tester tuaj yeem kuaj tus kheej ntawm polarization extinction piv, kuaj lub zog kho qhov muag, digital zeroing, digital calibration, phau ntawv lossis xaiv ntau yam tsis siv neeg, nruab nrog USB (RS232) interface, lub khoos phis tawj sab saud tuaj yeem kuaj, sau thiab txheeb xyuas cov ntaub ntawv, thiab tuaj yeem tsim ib qho kev xeem tsis siv neeg yooj yim. Siv dav hauv cov khoom siv sib txuas lus kho qhov muag, kho qhov muag fiber ntau, cov khoom siv kho qhov muag tsis pom kev thiab cov khoom siv kho qhov muag kuaj, ntau lub zog, kev ntsuas siab, raug nqi, kev ntseeg tau zoo