You might try the CASA Guides, which contain a nice collection of tutorials for CASA.
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What Support Personnel are Required to Operate the Very Large Array?
Yes, indeed the Very Large Array site employs a wide range of engineers, technicians, telescope operators, and other support…

How Does the Physical Size of the Antennas in a Radio Interferometer Affect its Sensitivity?
This question is closely related to a question that we have answered previously about how a radio telescope interferometer…

Can I Listen to the Radio Signals that the Very Large Array is Receiving?
The Very Large Array, just like all radio telescopes, receives signals which are transmitted from objects in space at…

Are There Space-Based Radio Telescopes?
There have been a few radio telescopes launched into space over the years, most with the purpose of linking…
How Does a Radio Telescope Work?
I believe that your question was perhaps answered previously at https://public.nrao.edu/ask/how-to-make-images-with-a-radio-telescope/. If this previous post does not answer your…