The shortwave radio be interfered by inband Cw radiation

In accordance with the problem that the communication radio are vulnerable to be repressive interfered, this experiment, in the open sites, use continuous wave radiation system to generate a sine wave signal as the jamming signal to illuminate a radio working under different conditions. Testing the interference threshold under different circumstances, statistical experiment data, analysis the experiment results, and summarizes the rule. Research the Irradiation effects of the electromagnetic irradiation. Experimental results show that: the radio working at different frequency and different power have different anti-interference performance. when the frequency of the interfering signal are different form the radio´s working frequency within 15KHz, The interference effect is best, and the radio have a good anti-interference performance if it use standard antenna as well as it using non-standard antenna. But when the interference frequency and the radio´s working frequency are different exceed 15KHz, the radio have an better anti-interference performance obviously while using standard antenna than using non-standard antenna.