Loran-C uses the multiple pulse system because ______．A.Less signal energy is necessary for receiver operationB.More signal energy is available at the receiverC.It significantly increases the peak powerD.It increases the signal capacity
Loran-C uses the multiple pulse system because ______．
A.Less signal energy is necessary for receiver operation
B.More signal energy is available at the receiver
C.It significantly increases the peak power
D.It increases the signal capacity
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单选题Loran-C uses the multiple pulse system because（）.ALess signal energy is necessary for receiver operationBMore signal energy is available at the receiverCIt significantly increases the peak powerDIt increases the signal capacity
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单选题Most modern Loran-C receivers，when not tracking properly，have a（n）（）.ABell alarm to warn the userBLighted alarm signal to warn the userCAlternate signal keying systemDView finder for each station
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