Article has no info on what this "new calibration technique" is whatsoever. The linked paper has the following to say on what the calibration strategy is:
> [Abstract:] Here we present a calibration strategy to correct for the ionosphere in the decametre band. [End of abstract.] Get Nature+, our best-value online-access subscription 24,99 € / 30 days cancel any time
I wonder if that's why the article doesn't know either. Useful submission.
> First, instrumental effects are corrected by using 3C196 [a quasar] as a calibrator source. Next, differential Faraday rotation and phase corrections for first and third-order ionospheric effects were obtained for the whole field of view
Where do they get the phase corrections from though? Sounds like a rest of the owl, but then I'm just a lay person casually interested so I'm probably just missing something
> [Abstract:] Here we present a calibration strategy to correct for the ionosphere in the decametre band. [End of abstract.] Get Nature+, our best-value online-access subscription 24,99 € / 30 days cancel any time
I wonder if that's why the article doesn't know either. Useful submission.
Edit: Per this banned post, <https://news.ycombinator.com/item?id=40329535>, the technique is:
> First, instrumental effects are corrected by using 3C196 [a quasar] as a calibrator source. Next, differential Faraday rotation and phase corrections for first and third-order ionospheric effects were obtained for the whole field of view
Where do they get the phase corrections from though? Sounds like a rest of the owl, but then I'm just a lay person casually interested so I'm probably just missing something