| 11. | At microwave frequencies moisture in the atmosphere ( rain fade ) can degrade transmission.
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| 12. | The microwave frequencies used in microwave ovens are chosen based on regulatory and cost constraints.
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| 13. | At microwave frequencies this allowed for a smaller antenna.
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| 14. | It was home to a 26-metre antenna and several smaller VHF and microwave frequency antennas.
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| 15. | Printed circuit technology makes this type antenna cost effective at microwave frequencies exceeding 1 GHz.
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| 16. | Amateur operations use VHF, UHF and microwave frequencies.
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| 17. | General advances, such as HEMT, in noise reduction at microwave frequencies have also had an effect.
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| 18. | Parametric oscillators have been developed as low-noise amplifiers, especially in the radio and microwave frequency range.
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| 19. | Today most, if not all, radar operates on microwave frequencies, said Stover, who lives in Dallas.
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| 20. | Because of their high frequency capability, Gunn diodes are mainly used at microwave frequencies and above.
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