Talk: Radio astronomy

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I altered the definition of VLBI to point out that VLBI differs from conventional interferometry by the need to record data and ship it before it can be correlated.

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UHF channel 37 is reserved in North America for radio astronomy. I have linked here from North American broadcast television frequencies; can someone who knows better explain what the particular significance of that frequency is? (I know it's an important spectral line of something, and that's as far as I can take it.) 18.24.0.120 04:50, 28 Jan 2004 (UTC)