[LMB] OT: Arecibo

Howard Brazee howard at brazee.net
Mon Nov 23 05:07:39 GMT 2020

Radio Detection And Ranging

>> Normal radio telescopes just listen.   Radar  is when signals come from Arecibo and bounce off of whatever it is looking at, and come back.
> Certainly a useful distinction, but it's a little confusing to call
> the passive version just "radio" when both versions use radio waves.
> Luke

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