Long Wave tshaj tawm yog ua los ntawm cov chaw khiav haujlwm ntawm 153 thiab 279 KiloHertz, piv txwv li cov wavelengths uas yog ntau dua 1,000 Metres . Cov wavelengths mus deb heev thiab feem ntau siv zog ntau dua li nruab nrab nthwv dej nruab nrab yoj nruab nrab nthwv dej nruab nrab nthwv dej (MW) yog feem ntawm cov xov tooj cua nruab nrab (MF) siv feem ntau rau AM xov tooj cua tshaj tawm. … Cov khoom xa hluav taws xob muaj zog npog thaj chaw loj dua ntawm FM xov tooj cua tab sis xav tau lub zog ntau dua. Cov qauv digital muaj peev xwm ua tau tab sis tseem tsis tau mus txog lub sijhawm tam sim no. https://en.wikipedia.org › wiki › Medium_wave
yoj nruab nrab - Wikipedia
or FM and DAB.
Can DAB get Radio 4 long wave?
xov tooj cua 4 tuaj yeem nrhiav pom ntawm cov channel hauv qab no, zaus thiab cov vev xaib: DAB Listed as "BBC Radio 4", "BBC R4", lossis "Xov tooj cua 4" FM 92 - 95 FM, 103 -105 FM . LW 198 Long Wave.
Yuav ua li cas yog qhov ntev nthwv dej?
Long-wave carrier frequencies yog qhov sib npaug ntawm 9 kHz; xws li ntawm 153 txog 279 kHz, tshwj tsis yog rau chaw nres tsheb Fabkis, Tebchaws Europe No. 1 hauv Tebchaws Yelemees.
Leej twg siv longwave?
In Tebchaws Europe, North Africa, Russia thiab Mongolia (ITU Cheeb Tsam 1), cov xov tooj cua ntev ntev hauv pawg 148.5 txog 283.5 kHz yog siv rau kev tshaj tawm hauv tsev thiab thoob ntiaj teb.
Puas yog longwave tseem siv?
BBC Xov tooj cua 4 ntev nthwv dej, uas xa mus rau 198kilohertz zaus, tso siab rau cov khoom siv hluav taws xob uas muaj hnub nyoog uas siv ob peb lub li qub - tsis tau tsim - ua haujlwm. … Cov xov tooj cua digital tam sim no nce mus txog 97% ntawm cov pej xeem, thiab muaj sijhawm txaus los nrhiav tsev tshiab rau cov kev pab cuam ntev-yoj nkaus xwb."
