通(tong)(tong)信雙方(fang)有一方(fang)或兩方(fang)處于運(yun)動(dong)(dong)(dong)中(zhong)的通(tong)(tong)信。包括陸、海、空移動(dong)(dong)(dong)通(tong)(tong)信。采用的頻(pin)(pin)段遍及低頻(pin)(pin)、中(zhong)頻(pin)(pin)、高(gao)頻(pin)(pin)、甚高(gao)頻(pin)(pin)和特高(gao)頻(pin)(pin)。移動(dong)(dong)(dong)通(tong)(tong)信系統由移動(dong)(dong)(dong)臺、基臺、移動(dong)(dong)(dong)交換局組成...