又可用作地-空雷达的地面询问机询问信号编码器。
It also can be used as the signal encoder of interrogator of the surface-to-air SSR.
快速调谐，机载DME通过交替调谐两部地面DME电台以测得来自同一台询问机的两个距离数据的能力。
AGILITY TUNING, the capability of the DME to alternately tune between two different DME stations in order to get two distance readings from one interrogator.
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