Cov txheej txheem:
Video: RTL-SDR Direct Sampling Mod: 3 Kauj Ruam
2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:27
Ntau lub dongles tsis tuaj yeem siv cov zaus qis dua 30Mhz txawm li cas los xij nws muaj peev xwm hloov kho qee yam khoom siv kom ua li ntawd siv txoj hauv kev hu ncaj qha mus kuaj. Hauv qhov piv txwv ncaj qha peb siv lub teeb liab ncaj qha mus rau lub dongles 'lub hlwb' ua tau zoo hla kev lim dej hluav taws xob. Ua ceeb toom txawm li cas los xij qhov no kuj tseem hla kev tiv thaiv kev tiv thaiv, ua rau nws tuaj yeem kib koj lub dongle.
Kauj ruam 1: Qhib Nws
Pib los ntawm kev sib cais lub dongle, nrog kuv qhov no yog qhov teeb meem tshem tawm ob peb lub hau ntswj thiab cov cua sov kom nkag mus rau lub rooj tsav xwm luam tawm. Nco tseg tias yuav ua li cas lub dongle tau sib sau ua ke thiab khaws cov ntaub qhwv kom sov kom deb ntawm hmoov av thiab av.
Kauj ruam 2: Hloov kho
Qhov kev hloov pauv no xav kom lub rooj tsav xwm tau nthuav tawm 'Q' lossis 'Kuv' cov ntaub qhwv muaj nyob ntawm PCB, saib hauv pawg thawj coj ntawm txhua daim ntaub qhwv tsis muaj neeg nyob. Ib zaug nyob ntawm qhov xaim me me rau ntawm lub ncoo, qhov zoo tshaj yog siv cov hlau ib leeg tooj liab xaim tab sis cov rwb thaiv tsev hom yuav ua haujlwm ib yam nkaus, tsis txhob siv cov xov hlau liab qab vim lawv yuav ua rau luv nrog lwm yam khoom siv ntawm lub rooj tsavxwm. Tua cov hlau rov qab mus rau SMA cov chaw txuas tus pin, ua tib zoo npaj cov xov hlau hla txoj kab ke kom nws zam kev cuam tshuam nrog lwm yam khoom. Thaum kawg txiav thiab muab cov hlua txuas txuas rau SMA txuas thiab siv cov ntsuas rov qab kom ntseeg tau tias tsis muaj luv luv nyob nruab nrab ntawm tus neeg tsav tsheb nruab nrab thiab tus pin hauv av.
Kauj Ruam 3: Software Kho Kom Zoo
Kev teeb tsa yuav txawv ntawm ntau lub software pob khoom tab sis yuav luag txhua qhov muab piv txwv ncaj qha. Rau SDR-ntse yooj yim nyem rau ntawm lub cim cogs, tom qab ntawd xaiv 'Sampling Mode / Quadrature sampling' thiab los ntawm cov ntawv qhia zaub mov nco-down xaiv 'Ncua Sijhawm Ncaj Ncees-Q ceg'
Pom zoo:
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