Irkutsk

The two transpolar shortwave time signal circuits,Moscow and Irkutsk to the Great Wall Station in Antarctica, are used to study the fading characters for shortwave long circuit.

为了研究过区的短波电路的衰特性，在城站收测莫斯科、依尔库茨克的短波授时台号，并给出各频率对应的衰深度、衰率、衰持续时间等参数的统计特征和衰幅度分布曲线。