33 lines
1.9 KiB
TeX
33 lines
1.9 KiB
TeX
% Author: Prof. Dr. Matthias Jung, DL9MJ
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% Year: 2024
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\begin{tikzpicture}
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% Earth:
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\draw[very thick] (0,0) arc (65:115:3);
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% 10km:
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\draw[dashed, gray] (0,0.5) node[anchor=west](){\qty{ 10}{\kilo\metre}} arc (65:115:3) coordinate(c1);
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\draw[dashed, gray] (0,1.0) node[anchor=west](){\qty{ 50}{\kilo\metre}} arc (65:115:3) coordinate(c2);
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\draw[dashed, gray] (0,1.1) node[anchor=west](){\qty{ 90}{\kilo\metre}} arc (65:115:3) coordinate(c3);
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\draw[dashed, gray] (0,1.2) node[anchor=west](){\qty{130}{\kilo\metre}} arc (65:115:3) coordinate(c4);
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\draw[dashed, gray] (0,1.3) node[anchor=west](){\qty{200}{\kilo\metre}} arc (65:115:3) coordinate(c5);
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\draw[dashed, gray] (0,1.5) node[anchor=west](){\qty{400}{\kilo\metre}} arc (65:115:3) coordinate(c6);
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\draw(c6) to [open, name={h4}] (c5);
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\draw(c5) to [open, name={h3}] (c4);
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\draw(c4) to [open, name={h2}] (c3);
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\draw(c3) to [open, name={h1}] (c2);
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\draw[gray](h1) node [anchor=east, text width=0.35cm](){D};
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\draw[gray](h2) node [anchor=east, text width=0.35cm](){E};
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\draw[gray](h3) node [anchor=east, text width=0.35cm](){$\text{F}_1$};
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\draw[gray](h4) node [anchor=east, text width=0.35cm](){$\text{F}_2$};
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%
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\path(0,0) arc (65:110:3) coordinate(tx);
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\path(0,0) arc (65:70:3) coordinate(rx);
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\path(0,0) arc (65:90:3) coordinate(mid1);
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\draw(tx) node[antenna,scale=0.25,rotate=+20](){};
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\draw(rx) node[antenna,scale=0.25,rotate=-20](){};
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\draw[DARCred, ultra thick, -Triangle] (tx) arc (110:97.5:3) node[pos=0.5, anchor=north, rotate=13](){Bodenwelle} coordinate(bw);
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\path(mid1) ++(0,1.75) coordinate(mid2);
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\draw(mid2) node[anchor=south](){Scheinbare Reflexion};
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\draw[dashed] (tx) -- (mid2) -- (rx);
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\draw[DARCred, ultra thick] (tx) .. controls (mid2) and (mid2) .. (rx) node[pos=0.5, anchor=south]{\bfseries Refraktion};
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\draw(mid1) node[anchor=south west](){Tote Zone};
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\end{tikzpicture} |