Setect appropriate one in the blank in following R 상세 페이지
1[전파전자통신기사 필기] 13년 1회차
Setect appropriate one in the blank in following Radio Regulation; "In the maritime mobile service, no assignments shall be made on the frequency 518(kHz) other than for transmission by coast stations of meteorological and navigational warnings and urgent information to ships by means of automatic NBDP telegraphy ( )."
1
International NAVAREA
2
Digital selective calling
3
International NAVTEX System
4
Enhanced Group Call
해설
등록된 해설이 없습니다.
내용에 오류가 있거나 최신 법령·기준과 다른 부분이 보이면 알려주세요. 확인 후 반영하겠습니다.