Beamer \pause command help

Question

I am using Beamer class and I need to load an image in the slide when a particular text(itemize element) is visible but I don't know how to do it with \pause[number]. MWE is given below with standard preamble settings.

\begin{frame}{Overview of Existing Multiple Access Schemes}\pause
    \begin{itemize}
        \item Existing Multiple Access Schemes\pause
        \begin{columns}
            \column{0.5\textwidth}
                \begin{itemize}
                    \item FDMA\pause
                    \item TDMA\pause
                    \item CDMA\pause
                    \item OFDMA
                \end{itemize}
            \column{0.5\textwidth}
                \begin{itemize}
                    \item FDMA-Image\pause
                    \item TDMA-Image\pause
                    \item CDMA-Image\pause
                    \item OFDMA-Image
                \end{itemize}
        \end{columns}
    \end{itemize}
\end{frame}

I need to load FDMA-Image when FDMA is become visible in the presentation and followed by the rest of items in the list i.e. TDMA, CDMA, etc.

Answer 1

You should use onslide and its abbrevs. You will learn much more reading beamer documentation chapter dedicated to overlays (texdoc beamer with texlive).

\begin{frame}
\frametitle{Overview of Existing Multiple Access Schemes}
   \begin{itemize}
       \item Existing Multiple Access Schemes      
        \begin{columns}[c]
           \begin{column}{0.5\textwidth}
              \begin{itemize}
                 \item<1-> FDMA
                 \item<2-> TDMA
                 \item<3-> CDMA
                 \item<4-> OFDMA
             \end{itemize}
           \end{column}
           \begin{column}{.5\textwidth}
            \begin{itemize}
                \item<1-> FDMA-Image
                \item<2-> TDMA-Image
                \item<3-> CDMA-Image
                \item<4-> OFDMA-Image
             \end{itemize}
           \end{column}
        \end{columns}
     \end{itemize}
\end{frame}

I'd bet you will soon need \only and friends if you're used to designing your frames this way. Look for example, in your last column, at what happens if you replace your itemize environment with:

                \only<1> FDMA-Image
                \only<2> TDMA-Image
                \only<3> CDMA-Image
                \only<4> OFDMA-Image