FRS xov tooj cua siv nqaim-band zaus hloov kho (NBFM) nrog qhov sib txawv siab tshaj plaws ntawm 2.5 kilohertz. Cov channel yog spaced ntawm 12.5 kilohertz intervals. Tom qab lub Tsib Hlis 18, 2017, FRS xov tooj cua raug txwv rau 2 Watts ntawm channel 1-7 thiab channels 15–22. Yav dhau los, FRS xov tooj cua raug txwv rau 500 milliwatts.
Kuv yuav tsum siv channel dab tsi ntawm kuv tus walkie talkie?
Muab tso yooj yim, kom lub zog siab tshaj plaws, siv channels 1-7 lossis 15-22. Cov neeg siv xov tooj cua feem ntau txhawb nqa ob lossis ntau hom fais fab. Kom tau txais ntau qhov ntau, nco ntsoov tias koj siv lub zog siab hom ntawm cov channel uas tso cai rau nws. Cov hom fais fab qis dua yuav tsis siv tag nrho koj lub xov tooj cua lub zog tso zis thiab yuav txo qis ntau yam.
Dab tsi zaus siv 2 txoj xov tooj cua?
Ob txoj xov tooj cua ua haujlwm ntawm frequencies ntawm 30 MHz (Megahertz) thiab 1000 MHz, tseem hu ua 1 GHz (Gigahertz). Qhov ntau ntawm ob-txoj kev zaus no tau muab faib ua ob pawg: Ntau zaus (VHF) - Ntau yam ntawm 30 MHz thiab 300 MHz. Ultra-High Frequency (UHF) - Ntau yam ntawm 300 MHz thiab 1 GHz.
Qhov twg zoo dua FRS lossis GMRS?
Zoo li FRS, GMRS siv FM ntau dua li AM nthwv dej xa cov cim, tab sis tsis zoo li FRS, GMRS tuaj yeem siv zog txog 50 watts. … Txawm li cas los xij, feem ntau GMRS xov tooj cua siv ntawm 1 thiab 5 watts ntawm lub zog. Lawv qhov ntau yog me ntsis zoo dua li cov xov tooj cua FRS, nrog rau cov khoom siv tes tuav tau nyob rau qhov chaw ntawm 1-2 mais qhov rais.
Puas yog FRS channels UHF lossis VHF?
Ob lub xov tooj cua FRS thiab GMRSua haujlwm hauv UHF band, thaum feem ntau ntawm cov chaw ua si hauv tebchaws thiab cov kev pabcuam kev coj ua haujlwm ntawm VHF band.
