Video: Dab tsi yog tshav dav hlau?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Hauv qhov tsis paub tshav dav hlau , ib unicom zaus yog siv. Hom unicom zaus yog 122.7, 122.72, 122.8, 122.97, 123.0. 123.05, thiab 123.07 MHz. Thaum tswj tshav dav hlau , av zaus zoo li 121.3, 121.5, 121.7, thiab 121.9.
Ua li no, lub dav hlau siv xov tooj cua dab tsi?
Ib yam dav hlau VHF xov tooj cua . Cov zaub qhia ib qho active zaus ntawm 123.5 MHz thiab standby zaus ntawm 121.5 MHz.
Ib tug kuj yuav nug, dab tsi yog lub sij hawm tawm mus? Tshaj tawm zaus yog ib qho siv los sib txuas lus nrog Tawm mus Tswj thaum tawm mus.
Ua qhov no hauv kev txiav txim siab, puas yog tshav dav hlau zaus AM lossis FM?
Muaj AM xov tooj cua ntawm VHF zaus thiab FM xov tooj cua ntawm VHF zaus . Capture Effect yog vim li cas AM modulation yog siv rau aircraft. AM yog siv rau nruab nrab zaus (526 KHz rau 1606 KHz) xov tooj cua vim nws yog qhov kev xaiv kim tshaj plaws nrog cov kev pabcuam raug tsim.
Puas yog kev mloog kev tswj hwm huab cua tsis raug cai?
Koj ua tau mloog cov huab cua tswj xov tooj cua kis nws yog txhaum cai raws li Txoj Cai Wireless Telegraphy 1949 2006 rau mloog rau ib yam dab tsi uas tsis yog kev txais tos dav dav tshwj tsis yog tias koj yog ib tus neeg siv ntawv tso cai ntawm cov lus nug ntau zaus lossis tau txais kev tso cai tshwj xeeb los ntawm tus neeg raug xaiv.
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