| 摘要 |
PROBLEM TO BE SOLVED: To provide a transmitting system characteristic measuring method for a digital modulation signal in which a time for measuring the occupied zone width of transmitting system characteristic of the digital modulation signal and leakage electric power of an adjoining channel can be shortened without spoiling measuring accuracy. SOLUTION: The spectrum distribution data D11 of a signal to be tested Sin of digital modulation signal is seeked by a spectrum distribution measuring part 11, occupied zone width is seeked from the spectrum distribution data D11 by an occupied zone width detecting part 12 so as to obtain an occupied zone width measured result S12, and simultaneously adjoining channel leakage electric power is seeked from the spectrum distribution data D11 by an adjoining channel leakage electric power detecting part 13, so as to obtain an adjoining channel leakage electric power measured result S13. |
