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\subsubsection{Cost of LO system}  We could use \cite{mmadesign} as an upper limit for LO System Cost:  \begin{equation}\label{eq:lo_cost}  \text{LO System Cost} (K\$)  = 80N+100 \end{equation}  \subsubsection{IF Transmission Cost}  Introducing $B$ as average baseline, we could use \cite{mmadesign} as an upper limit for IF Transmission Cost: 
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