通(tong)(tong)(tong)信(xin)雙方(fang)有一方(fang)或兩方(fang)處于運動(dong)(dong)(dong)(dong)中的通(tong)(tong)(tong)信(xin)。包括陸、海、空移(yi)動(dong)(dong)(dong)(dong)通(tong)(tong)(tong)信(xin)。采用(yong)的頻段遍及(ji)低頻、中頻、高頻、甚高頻和特高頻。移(yi)動(dong)(dong)(dong)(dong)通(tong)(tong)(tong)信(xin)系統由移(yi)動(dong)(dong)(dong)(dong)臺(tai)、基臺(tai)、移(yi)動(dong)(dong)(dong)(dong)交換局組成...