Editing Jansky (section)

=== dBW·m<sup>−2</sup>·Hz<sup>−1</sup> ===

The linear flux density in janskys can be converted to a [[decibel]] basis, suitable for use in fields of telecommunication and radio engineering.

1 jansky is equal to −260&nbsp;[[Decibel watt|dBW]]·m<sup>−2</sup>·Hz<sup>−1</sup>, or −230&nbsp;[[dBm]]·m<sup>−2</sup>·Hz<sup>−1</sup>:<ref>{{cite web |url=http://www.iucaf.org/sschool/mike/Units_and_Calculations.ppt |title=Units and Calculations |last1=Davis |first1=Mike |format=PPT |date=June 2002 |website=iucaf.org |access-date=2025-03-12 |url-status=live |archive-url=https://web.archive.org/web/20160303223821/http://www.iucaf.org/sschool/mike/Units_and_Calculations.ppt |archive-date=2016-03-03 }}</ref>
<math display="block">\begin{align}
P_{\text{dBW}\cdot\text{m}^{-2} \cdot \text{Hz}^{-1}} &= 10 \log_{10}\left(P_\text{Jy}\right) - 260, \\
P_{\text{dBm}\cdot\text{m}^{-2} \cdot \text{Hz}^{-1}} &= 10 \log_{10}\left(P_\text{Jy}\right) - 230.
\end{align}</math>