| 11. | It uses a directional antenna consisting of 4 guyed masts, insulated against ground.
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| 12. | A directional antenna system is used during the station's nighttime hours.
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| 13. | These beams were intended to be received by portable devices with omni-directional antennas.
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| 14. | Systems with high data rates may even use a directional antenna, if required.
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| 15. | The WWRL directional antenna system consists of 4 towers in a square arrangement.
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| 16. | The points used for calculation may differ if a directional antenna is used.
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| 17. | This caused the collapse of the tower and destroyed the directional antenna system.
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| 18. | Several have been incorporated into phased arrays ( directional antennas ).
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| 19. | Do you happen to know if it's a directional antenna?
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| 20. | To protect other stations on 930 kHz, WPKX uses a directional antenna at night.
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