\documentclass[a4paper,11pt]{refart}

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\usepackage{microtype}
\usepackage{siunitx}
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\usepackage{booktabs,caption}
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\usepackage{tabularx} 

\usepackage{stackengine}
\usepackage{scalerel}
\usepackage{xcolor,mdframed}
\DeclareSIUnit{\belmilliwatt}{Bm}
\DeclareSIUnit{\dBm}{\deci\belmilliwatt}

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 {\end{minipage}\end{table}}

\usepackage[hidelinks]{hyperref}
\newcommand{\vna}{LibreVNA}
\date{}
\title{\vna{} Preliminary Specifications}
\begin{document}
\maketitle

\setcounter{tocdepth}{3}
%\tableofcontents
%\clearpage

\vspace{-2cm}

%\clearpage
%\section{Electrical Characteristics}
\begin{fullimage}
\small
\textbf{VNA}\\
\begin{center}
\begin{threeparttable}
\begin{tabularx}{\textwidth}{L{4cm}|X|C{1.2cm} C{1.2cm} C{1.2cm}|L{1.4cm}}
    \toprule
    \textbf{Parameter} & \textbf{Conditions} & \textbf{Min} & \textbf{Typ} & \textbf{Max} & \textbf{Unit}\\
     \hline
      Frequency range  & native   & \SI{100}{\kilo\hertz} & & \SI{6}{\giga\hertz} &   \\
      & with harmonic mixing up to  &  & \SI{8}{\giga\hertz} & &  \\
      Stimulus power & & -40 & & 0\tnote{1} & \si{\dBm}\\
      Dynamic range & stimulus \SI{0}{\dBm}, \SI{10}{\hertz} IF BW & & & &  \\
       & \hspace*{0.5cm} <\SI{1}{\MHz} & & 60 & &  \si{\dB}\\
       & \hspace*{0.5cm} \SIrange{1}{5}{\mega\hertz} & & 80 & &  \si{\dB}\\
       & \hspace*{0.5cm} \SIrange{5}{2940}{\mega\hertz}, S12 & 75 & 85 & &  \si{\dB}\\
       & \hspace*{0.5cm} \SIrange{5}{2940}{\mega\hertz}, S21 & 85 & 105 & &  \si{\dB}\\
       & \hspace*{0.5cm} >\SI{2940}{\mega\hertz}, S12 & 40 & 55 & &  \si{\dB}\\
       & \hspace*{0.5cm} >\SI{2940}{\mega\hertz}, S21 & 50 & 60 & &  \si{\dB}\\
      IF Bandwidth & & 10 & & 50k & \si{\hertz}\\
      Acquisition speed & \SI{50}{\kilo\hertz} IF BW & & 10k & & points/s\\
      \bottomrule
\end{tabularx}
\begin{tablenotes}
\item[1] Maximum power drops with increasing frequency
\end{tablenotes}
\end{threeparttable}
\end{center}
\end{fullimage}

\begin{fullimage}
\small
\textbf{Signal Generator}\\
\begin{center}
\begin{threeparttable}
\begin{tabularx}{\textwidth}{L{4cm}|X|C{1.2cm} C{1.2cm} C{1.2cm}|L{1.4cm}}
    \toprule
    \textbf{Parameter} & \textbf{Conditions} & \textbf{Min} & \textbf{Typ} & \textbf{Max} & \textbf{Unit}\\
     \hline
      Frequency range  &  & \SI{100}{\kilo\hertz} & & \SI{6}{\giga\hertz} &   \\
      Output power & & -40 & & 0\tnote{1} & \si{\dBm}\\
      \bottomrule
\end{tabularx}
\begin{tablenotes}
\item[1] Maximum power drops with increasing frequency
\end{tablenotes}
\end{threeparttable}
\end{center}
\end{fullimage}

\begin{fullimage}
\small
\textbf{Spectrum Analyzer}\\
\begin{center}
\begin{threeparttable}
\begin{tabularx}{\textwidth}{L{4cm}|X|C{1.2cm} C{1.2cm} C{1.2cm}|L{1.4cm}}
    \toprule
    \textbf{Parameter} & \textbf{Conditions} & \textbf{Min} & \textbf{Typ} & \textbf{Max} & \textbf{Unit}\\
     \hline
      Frequency range  &  & \SI{100}{\kilo\hertz} & & \SI{6}{\giga\hertz} &   \\
      Input power & & & & -5 & \si{dBm}\\
      Resolution bandwidth & & 13 & & 112k & \si{\hertz}\\
      Phase noise & \SI{1}{\giga\hertz}, \SI{10}{\kilo\hertz} offset & & -103 & & dBc/Hz\\
      \bottomrule
\end{tabularx}
%\begin{tablenotes}
%\end{tablenotes}
\end{threeparttable}
\end{center}
\end{fullimage}

\end{document}
