Cov khoom lag luam WiFi xav kom peb ntsuas tus kheej thiab ntsuas lub zog WiFi cov ntaub ntawv ntawm txhua yam khoom, yog li koj paub ntau npaum li cas txog qhov tsis muaj WiFi calibration, cia kuv qhia rau koj:
1. Kev xa hluav taws xob (TX Hwj chim): hais txog lub zog ua haujlwm ntawm lub kav hlau txais xov xa xov ntawm cov khoom siv wireless, chav tsev yog dBm. Lub zog ntawm kev xa xov wireless txiav txim siab lub zog thiab qhov deb ntawm lub teeb liab wireless, lub zog ntau dua, lub teeb liab muaj zog dua. Hauv kev tsim cov khoom siv wireless, yuav ib txwm muaj lub hom phiaj lub zog ua lub hauv paus ntawm peb tus qauv tsim. Raws li qhov kev xav tau ntawm kev txaus siab rau spectrum board thiab EVM, qhov loj dua qhov xa hluav taws xob, qhov ua tau zoo dua.
2. Tau txais rhiab heev (RX Sensitivity): Ib qho parameter uas qhia txog qhov tau txais txiaj ntsig ntawm DUT. Qhov zoo dua qhov tau txais rhiab heev, qhov muaj txiaj ntsig zoo nws tau txais, thiab ntau dua nws cov kev pabcuam wireless. Thaum kuaj qhov tau txais rhiab heev, ua rau cov khoom nyob rau hauv lub xeev tau txais, siv lub WiFi calibration ntaus ntawv xa ib tug tshwj xeeb waveform ntaub ntawv, thiab cov khoom yuav tau txais nws, thiab lub hwj chim theem xa tuaj yeem hloov kho ntawm WiFi calibration ntaus ntawv kom txog thaum cov khoom ntim khoom. Tus nqi yuam kev (PER%) ua tau raws li tus qauv.
3. Zaus yuam kev (Frequency Error): Nws sawv cev rau qhov sib txawv ntawm RF teeb liab los ntawm qhov nruab nrab zaus ntawm cov channel uas lub teeb liab nyob, hauv PPM.
4. Kev ua yuam kev Vector Magnitude (EVM): Nws yog qhov ntsuas ntsuas los txiav txim siab qhov zoo ntawm cov teeb liab modulated, thiab chav tsev yog dB. Qhov me me ntawm EVM, qhov teeb meem zoo dua. Hauv cov khoom siv wireless, TX hwj chim thiab EVM muaj feem xyuam. Qhov ntau dua TX Power, ntau dua EVM, uas yog, qhov teeb meem tsis zoo. Yog li ntawd, hauv kev siv tswv yim, yuav tsum muaj kev sib haum xeeb ntawm TX Power thiab EVM.
5. Transmit Spectrum Mask ntawm cov teeb liab kis tau tuaj yeem ntsuas qhov zoo ntawm cov teeb liab kis tau tus mob thiab muaj peev xwm tiv thaiv kev cuam tshuam rau cov kab uas nyob ib sab. Lub ntsej muag spectrum ntawm lub teeb liab nyob rau hauv kev sim yog tsim nyog nyob rau hauv tus qauv spectrum npog.
6. Cov channel tseem hu ua channel (Channel) lossis zaus band, uas yog cov ntaub ntawv xov xwm kis tau tus mob nrog cov teeb liab wireless (electromagnetic yoj) ua cov khoom sib kis. Wireless networks (routers, AP hotspots, khoos phis tawj wireless phaib) tuaj yeem ua haujlwm ntawm ntau txoj kev. Ntau yam khoom siv wireless network hauv thaj tsam ntawm cov teeb liab wireless yuav tsum sim siv cov kab sib txawv kom tsis txhob cuam tshuam ntawm cov teeb liab.