\contentsline {section}{\numberline {1}Introduction}{3}
\contentsline {subsection}{\numberline {1.1}The Need for Flux Calibration}{3}
\contentsline {subsection}{\numberline {1.2}Calibration Procedure}{3}
\contentsline {section}{\numberline {2}Observing procedure}{3}
\contentsline {subsection}{\numberline {2.1} Single and Multi-dish mode}{4}
\contentsline {subsection}{\numberline {2.2} Interferometric mode}{4}
\contentsline {section}{\numberline {3}Reduction method}{5}
\contentsline {subsection}{\numberline {3.1}Single-dish}{5}
\contentsline {subsection}{\numberline {3.2}Interferometry}{7}
\contentsline {section}{\numberline {4}How to Determine the Absolute Flux Scale on a Project}{7}
\contentsline {subsection}{\numberline {4.1}The Amplitude Calibrator is used for Pointings}{8}
\contentsline {subsection}{\numberline {4.2}The Amplitude Calibrator is too weak for Pointings}{9}
\contentsline {subsection}{\numberline {4.3}Using Pointings and Cross-correlations}{9}
\contentsline {subsection}{\numberline {4.4}Use of W3OH as Flux Calibrator}{10}
\contentsline {section}{\numberline {5}The FLUX program}{10}
\contentsline {section}{\numberline {6}Possible Improvements}{12}