
Aerials for the reception of sound and television broadcasting in the frcquency range 30MHz to 1GHz Part 2:methods of measurement of measurement of electrical performance parameters
标准号:SJ/Z 9097.2-1987
Aerials for the reception of sound and television broadcasting in the frcquency range 30MHz to 1GHz Part 2:methods of measurement of measurement of electrical performance parameters
标准号:SJ/Z 9097.2-1987