Term
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Definition
| Frequency spectrum classification for VLF, LF, HF, VHF, UHF, SHF, and EHF |
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Term
| Electro-Optic Frequencies |
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Definition
| Frequency spectrum classification for IR, UV, and Visible Light |
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Term
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Definition
| Frequency spectrum classification for X-Ray and Gamma |
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Term
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Definition
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Term
| Couple (Antennas do this; explain) |
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Definition
| In order for electromagnetic energy to be radiated, propagated through the atmosphere, and received, a transmitting antenna must ______ signals from the transmitter to the atmosphere and receiving antenna must collect this energy and ______ it to the receiver for processing. |
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Term
| A receiving antenna placed in the path of a wave can extract the maximum amount of energy from it, if the polarizations are the same. If the polarizations are not the same the extracted energy is _______. |
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Definition
| Reduced signals (polarization; explain) |
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Term
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Definition
| The number of complete cycles a signal completes per second. |
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Term
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Definition
| Line of sight transmission (type of wave) |
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Term
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Definition
| Phenomenon in which signals are refracted off regions of troposphere allowing them to travel further than line of sight. |
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Term
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Definition
| Wave appears to be bent by the edge leaving in a direction different from the original direction (may be received at some distance behind a mountain) |
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Term
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Definition
| Angle of incidence = Angle of reflection |
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Term
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Definition
| Bending of radar energy by Earth's atmosphere. |
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Term
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Definition
| The process of impressing information (such as voice, music, data) upon a transmission medium (such as radio waves). |
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