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We will use $A$ in this document as each array element collecting area (thus we could also write $\pi \cdot D^2$, with $D$ being the dish diameter).  \subsubsection{Efficiency}  We will use $\eta_a$ in this document as the antenna efficiency with $\eta_a = \eta_{\text{surface efficiency}} \cdot \eta_{\text{aperture blockage}} \cdot \eta_{\text{feed spillover efficiency}} \cdot \eta_{\text{illumination taper efficiency}}$ (as defined in \cite{antenna}).  \subsubsection{Quantity}  We will use $N$ in this document as the number of array elements.  \subsection{Pad Aspects}  \subsubsection{Quantity}  In case re-configuration of the array is envisioned, there might be a bigger number of pads ready for aperture connection to the system.  \subsubsection{Position}  The challenge We will use the geographic latitude and longitude  of positions has been addressed in x, y the pads  and z. calculate from that the length of the possible baselines.  \subsection{Receiver Aspects}  \subsubsection{Bandwidth}  \subsubsection{Temperature} 
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\Delta I_m = {\frac{1}{\eta_s }}{\frac{SEFD}{\sqrt{(N(N-1) \Delta \nu t_{int}}}}   \end{equation}  in units of Janskys per synthesized beam area, with $\eta_s$ most important factor being $\eta_c$ (see \cite{sensitivity}).  \subsection{} \subsection{Field of View}  \subsection{Fourier Plane Coverage}  \subsection{Operations Costs}  \subsubsection{Components reliability}  \subsubsection{Maintenance complexity} 
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