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10 Cards in this Set
- Front
- Back
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What determines the size of a transmitting antenna?
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Operating frequency
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Marconi antennas are used for operating frequencies below what level?
a.10MHz b.6MHz c.4MHz d.2MHz |
d.2MHz
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All antennas regardless of their shape or size have how many basic characteristics?
a.1 b.2 c.3 d.4 |
d.4
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How many channels are provided with the AN/SRA-12 multicoupler?
a.4 b.5 c.6 d.7 |
d.7
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An antenna that radiates energy in all directions is said to have what type of radiation pattern?
a.Isotropic b.Anisotropic c.Bysotropic d.Circumstropic |
a.Isotropic
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Why are UHF and VHF antennas on board ship installed as high as possible?
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To prevent unwanted directivity in the radiation pattern from mast structures
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What is the average power handling capability of an Inverted Cone antenna?
a.20kw b.30kw c.40kw d.50kw |
40kw
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The AN/WSC-5(V) shore station antenna consists of what number of OE-82A/WSC-1(V) assemblies?
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4
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The AN/URA-38 antenna coupler is an automatic tuning system primarily used with which radio transmitter?
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URT-23
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The AN/SRA-57 coupler group operates in which of the following frequency ranges? a.2–6Mhz b.4-12Mhz
c.10-30Mhz d.40–60Mhz |
b.4-12Mhz
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