Wwvh-15MHz.jpg
The United States National Institute of Standards and Techology
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Wwvh 15MHz, WWVH
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Wwvh 15MHz, 15 MHz antenna array. Two half-wave vertical dipoles separated by a quarter-wave length and driven 90 degrees out of phase., 15MHz的天线阵列。两个半波的垂直偶极子被四分之一波的长度分开，擁90度的相位差。, zh-hant
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WWVHの15MHz送信所
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Wwvh 15MHz、15MHzアンテナアレイ。半波的垂直偶子被四分之一波的度分,擁90度的相位差。
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phase-out phase out