Leaky coaxial cable testing method

The invention discloses a leaky coaxial cable testing method which comprises the following steps: respectively connecting one ends of two testing leads with a signal generator and a spectrum analyzer or an equivalent instrument, connecting the other ends of the two testing leads, adjusting the frequency of the signal generator to a testing frequency, and inputting power to ensure that the power of the tail end of a whole section of test sample meets a testing requirement; performing calibration, and recording the power level displayed by the spectrum analyzer or the equivalent instrument under the test frequency as Nin; and judging whether the length of the test sample needs to be segmented or not, and measuring the whole segment or the segments. Accurate evaluation of the transmission quality of the cable can be realized by measuring the input power and the output power of the cable and counting and calculating the relative power level, the whole method is not complex, and compared with the prior art, the pu