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The radio window is the region of the radio spectrum that penetrate the Earth's atmosphere. Typically, the lower limit of the radio window's range has a value of about 10 MHz (λ ≈ 30 m); the best upper limit achievable from optimal terrestrial observation sites is equal to approximately 1 THz (λ ≈ 0.3 mm).
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radio limit upper frequency lower window window's astronomy also range mm observations water interference mhz affected since value 10 30
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Radio window | is a | region of the radio spectrum that penetrate the Earth's atmosphere | 0.90 | text |
| oxygen | instance of | they depend on a variety of factors.Absorption of mid-IRThe upper limit is affected by the vibrational transitions of atmospheric molecules | 0.80 | text |
| oxygen | instance of | Absorption of mid-IRThe upper limit is affected by the vibrational transitions of atmospheric molecules | 0.80 | text |
| Radio window | related to Factors affecting lower and upper limits | The | 0.60 | section |
| Radio window | related to Ionosphere | The | 0.60 | section |
| Radio window | related to Ionosphere | MHz | 0.60 | section |
| Radio window | related to Ionosphere | Hz | 0.60 | section |
| Radio window | related to Ionosphere | Since | 0.60 | section |
| Radio window | related to Ionosphere | However | 0.60 | section |
| Radio window | related to Radio frequency interference | The | 0.60 | section |
| Radio window | related to Troposphere | When | 0.60 | section |
| Radio window | related to Troposphere | THz | 0.60 | section |
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