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If the radio signal ground wave extends out for less distance than the minimum skywave distance，there is an area in which no signal is received．This is called the ______．
A.Skip zone
B.Blackout zone
C.Diffraction zone
D.Shadow zone
参考答案
更多 “ If the radio signal ground wave extends out for less distance than the minimum skywave distance，there is an area in which no signal is received．This is called the ______．A.Skip zoneB.Blackout zoneC.Diffraction zoneD.Shadow zone ” 相关考题
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单选题Which condition must be satisfied before an EIGRP neighbor can be considered a feasiblesuccessor?（）A
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单选题If the radio signal ground wave extends out for less distance than the minimum skywave distance，there is an area in which no signal is received．This is called the（）.A
Skip zoneB
Blackout zoneC
Diffraction zoneD
Shadow zone
考题
单选题The correction to be applied to a Loran-C reading when matching a sky wave to a ground wave may be found（）.A
on loran charts covering areas where sky waves are usedB
in the Radio Aids to Navigation，PUB 117C
in the Loran-C Correction TablesD
Sky waves cannot be matched to ground waves in LORAN-C to produce a usable reading
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