It is found that a QPSK/DFE modem with second-order diversity can operate at a data rate which is an order of magnitude higher than a QPSK modem without equalization.

• 以下被发现：和第二次序的不同 QPSK/DFE 调制解调器能在比没有均等的一个 QPSK 调制解调器更高地是一个大小的次序的数据率操作。