GMRS/FRS RAADIOSAATJA
GMRS/FRS RAADIOSAATJA
Tundub et on keelatud sagedusel kuid mis juhtub kui sellist saatjat kasutada. Sagedus on vahemikus 462,550-467,7125 ning levikauguseks on lubatud 8 miili või 13 kilomeetrit .
FRS (Family Radio Service), sagedusala 462,5625 MHz - 467,7125 MHz, 14 kanalit sammuga 25 KHz, võimsus 500 mW. Vabakasutussagedused USA-s ja Kanadas, minuteada mujal praegu vabas kasutuses pole.
Võid kuulata, kui keegi seal ei tööta ja sinu hõikamise peale sõimama ka ei hakka, lase käia. Venemaal küll vist kasutati või kasutatakse ka praegu seda sagedusala meteoroloogia satelliitsideks, aga neid sa oma 500 mW-iga kindlasti ei sega. Usun, et varsti muutuvad need eri maades kasutatavad erinevad vabakasutussagedused niikuinii rahvusvahelisteks.
Võid kuulata, kui keegi seal ei tööta ja sinu hõikamise peale sõimama ka ei hakka, lase käia. Venemaal küll vist kasutati või kasutatakse ka praegu seda sagedusala meteoroloogia satelliitsideks, aga neid sa oma 500 mW-iga kindlasti ei sega. Usun, et varsti muutuvad need eri maades kasutatavad erinevad vabakasutussagedused niikuinii rahvusvahelisteks.
73! Ambur / 3Ø4MR / ES2RDX
Koduleht: http://www.ambur.ee
Koduleht: http://www.ambur.ee
FRS ja GMRS jaamade kasutamisest USA-s ja meil:
FRS:
FRS or Family Radios Service radios are compact, handheld, wireless 2-way radios that provide very good clarity over a relatively short range. FRS radios operate on any of 14 dedicated channels (1-14) designated by the FCC (Federal Communications Commission) expressly for FRS radio usage. In order to comply with FCC standards, FRS radios have a maximum allowable power of 0.5 watts (or 1/2 watt). FRS radio tranceivers and their antennas may not be modified to extend their range.
GMRS:
GMRS or General Mobile Radio Service radios operate on any of up to 8 dedicated channels (15-22) designated by the FCC. GMRS radios typically have power ratings of 1.0 to 5.0 watts and have a maximum allowable power of 50 watts.
FRS radios do not require a license to use:
"If you operate a radio that has been approved exclusively under the rules that apply to FRS, you are not required to have a license. FRS radios have a maximum power of 1/2 watt (500 milliwatt) effective radiated power and integral (non-detachable) antennas."
GMRS radios require a license to use:
"If you operate a radio under the rules that apply to GMRS, you must have a GMRS license. GMRS radios generally transmit at higher power levels (1 to 5 watts is typical) and may have detachable antennas."
FRS/GMRS dual-band radios require a license if you use the GMRS channels:
"If you operate a (dual-band) radio under the rules that apply to GMRS, you must have a GMRS license."
Nii on USA-s, Eestis jäävad aga mõlemad lainealad, nii FRS kui GMRS litsentsi nõudvate sageduste alasse ja nende kasutamine hakkab segama litsentsi ostnud ametkondade sidet, mis võib tuua kasutajale palju ebameeldivusi.
(lihtsalt teadmiseks)
FRS:
FRS or Family Radios Service radios are compact, handheld, wireless 2-way radios that provide very good clarity over a relatively short range. FRS radios operate on any of 14 dedicated channels (1-14) designated by the FCC (Federal Communications Commission) expressly for FRS radio usage. In order to comply with FCC standards, FRS radios have a maximum allowable power of 0.5 watts (or 1/2 watt). FRS radio tranceivers and their antennas may not be modified to extend their range.
GMRS:
GMRS or General Mobile Radio Service radios operate on any of up to 8 dedicated channels (15-22) designated by the FCC. GMRS radios typically have power ratings of 1.0 to 5.0 watts and have a maximum allowable power of 50 watts.
FRS radios do not require a license to use:
"If you operate a radio that has been approved exclusively under the rules that apply to FRS, you are not required to have a license. FRS radios have a maximum power of 1/2 watt (500 milliwatt) effective radiated power and integral (non-detachable) antennas."
GMRS radios require a license to use:
"If you operate a radio under the rules that apply to GMRS, you must have a GMRS license. GMRS radios generally transmit at higher power levels (1 to 5 watts is typical) and may have detachable antennas."
FRS/GMRS dual-band radios require a license if you use the GMRS channels:
"If you operate a (dual-band) radio under the rules that apply to GMRS, you must have a GMRS license."
Nii on USA-s, Eestis jäävad aga mõlemad lainealad, nii FRS kui GMRS litsentsi nõudvate sageduste alasse ja nende kasutamine hakkab segama litsentsi ostnud ametkondade sidet, mis võib tuua kasutajale palju ebameeldivusi.
(lihtsalt teadmiseks)
Viimati muutis Ambur, P Mär 22, 2009 10:16 pm, muudetud 1 kord kokku.
73! Ambur / 3Ø4MR / ES2RDX
Koduleht: http://www.ambur.ee
Koduleht: http://www.ambur.ee
!