% DL9MJ, Simuliert mit:
% https://www.researchgate.net/journal/Radio-Science-1944-799X/publication/394847522_AU-Ray_Program_for_Modeling_Radio_Wave_Propagation_in_the_Ionosphere/links/68a8a2392c7d3e0029b2cc7d/AU-Ray-Program-for-Modeling-Radio-Wave-Propagation-in-the-Ionosphere.pdf?_tp=eyJjb250ZXh0Ijp7ImZpcnN0UGFnZSI6InB1YmxpY2F0aW9uIiwicGFnZSI6InB1YmxpY2F0aW9uRG93bmxvYWQiLCJwcmV2aW91c1BhZ2UiOiJwdWJsaWNhdGlvbiJ9fQ&__cf_chl_tk=s5JMpeat_GlBYdyORP.7nZXgOeLrLpuJ09NhgHG4MHc-1756052085-1.0.1.1-Y7tSOsEY9BCxsy9Q57_eC30BcbovV2daHybzvELjs1g

\begin{filecontents*}{jr_muf.csv}
0.05, 7.89
0.13, 7.99
0.22, 8.02
0.30, 8.09
0.38, 8.00
0.47, 7.82
0.55, 7.94
0.63, 7.85
0.72, 8.03
0.80, 7.91
0.88, 7.75
0.97, 7.79
1.05, 8.18
1.13, 8.19
1.22, 7.70
1.30, 8.30
1.38, 8.38
1.47, 8.35
1.55, 8.45
1.63, 8.42
1.72, 8.51
1.80, 8.22
1.88, 8.31
1.97, 7.78
2.05, 7.59
2.13, 7.73
2.22, 7.43
2.30, 7.55
2.38, 7.53
2.47, 7.84
2.55, 7.40
2.63, 7.76
2.72, 7.97
2.80, 7.64
2.88, 7.96
2.97, 8.02
3.05, 7.74
3.13, 7.60
3.22, 7.74
3.30, 7.87
3.38, 8.05
3.47, 8.07
3.55, 8.08
3.63, 8.34
3.72, 8.31
3.80, 8.76
3.88, 9.15
3.97, 6.15
4.05, 10.18
4.13, 10.27
4.22, 10.51
4.30, 10.77
4.38, 10.75
4.47, 10.71
4.55, 10.65
4.63, 10.76
4.72, 11.32
4.80, 11.57
4.88, 11.53
4.97, 11.43
5.05, 11.87
5.13, 12.35
5.22, 12.23
5.30, 12.46
5.38, 12.42
5.47, 12.24
5.55, 12.97
5.63, 13.47
5.72, 13.64
5.80, 13.59
5.88, 12.89
5.97, 13.18
6.05, 13.31
6.13, 13.95
6.22, 13.78
6.30, 13.70
6.38, 14.31
6.47, 14.65
6.55, 14.63
6.63, 14.41
6.72, 14.54
6.80, 14.66
6.88, 15.27
6.97, 16.00
7.05, 16.60
7.13, 17.40
7.22, 18.34
7.30, 19.01
7.38, 19.34
7.47, 19.52
7.55, 19.78
7.63, 19.86
7.72, 20.19
7.80, 20.58
7.88, 20.67
7.97, 21.04
8.05, 21.78
8.13, 21.50
8.22, 20.95
8.30, 20.78
8.38, 21.38
8.47, 21.12
8.55, 20.92
8.63, 20.78
8.72, 21.11
8.80, 20.64
8.88, 20.60
8.97, 20.70
9.05, 21.59
9.13, 22.97
9.22, 23.34
9.30, 23.97
9.38, 24.19
9.47, 24.01
9.55, 24.26
9.63, 24.04
9.72, 24.28
9.80, 25.25
9.88, 25.66
9.97, 25.42
10.05, 24.70
10.13, 24.67
10.22, 25.26
10.30, 25.96
10.38, 26.69
10.47, 26.50
10.55, 26.69
10.63, 26.29
10.72, 25.98
10.80, 25.24
10.88, 24.63
10.97, 25.11
11.05, 24.19
11.13, 23.03
11.22, 25.06
11.30, 26.07
11.38, 26.14
11.47, 25.60
11.55, 25.20
11.63, 26.38
11.72, 25.84
11.80, 25.43
11.88, 26.44
11.97, 26.63
12.05, 25.91
12.13, 25.54
12.22, 24.64
12.30, 23.80
12.38, 23.28
12.47, 26.19
12.55, 25.96
12.63, 25.66
12.72, 24.28
12.80, 24.20
12.88, 24.72
12.97, 24.84
13.05, 25.12
13.13, 25.56
13.22, 26.67
13.30, 27.36
13.38, 27.07
13.47, 25.92
13.55, 25.78
13.63, 25.14
13.72, 25.30
13.80, 25.19
13.88, 25.14
13.97, 25.20
14.05, 25.90
14.13, 26.07
14.22, 26.08
14.30, 26.80
14.38, 26.92
14.47, 27.44
14.55, 26.41
14.63, 25.72
14.72, 26.08
14.80, 26.20
14.88, 26.57
14.97, 26.46
15.05, 25.60
15.13, 25.54
15.22, 25.48
15.30, 25.30
15.38, 25.54
15.47, 25.54
15.55, 24.95
15.63, 25.25
15.72, 26.20
15.80, 26.28
15.88, 25.17
15.97, 24.52
16.05, 24.51
16.13, 23.76
16.22, 24.39
16.30, 24.54
16.38, 24.74
16.47, 25.19
16.55, 25.66
16.63, 26.14
16.72, 26.14
16.80, 26.08
16.88, 26.08
16.97, 25.78
17.05, 25.90
17.13, 25.66
17.22, 24.81
17.30, 24.71
17.38, 25.30
17.47, 26.14
17.55, 26.49
17.63, 26.74
17.72, 26.38
17.80, 26.14
17.88, 27.83
17.97, 26.78
18.05, 26.76
18.13, 26.65
18.22, 26.23
18.30, 25.21
18.38, 24.50
18.47, 24.81
18.55, 24.57
18.63, 24.21
18.72, 24.01
18.80, 23.94
18.88, 23.87
18.97, 23.38
19.05, 23.34
19.13, 21.57
19.22, 21.67
19.30, 21.32
19.38, 21.34
19.47, 20.31
19.55, 19.78
19.63, 19.86
19.72, 20.31
19.80, 19.88
19.88, 19.16
19.97, 19.16
20.05, 17.89
20.13, 17.80
20.22, 16.69
20.30, 16.09
20.38, 15.65
20.47, 15.31
20.55, 15.25
20.63, 15.10
20.72, 14.60
20.80, 14.75
20.88, 13.83
20.97, 13.14
21.05, 12.86
21.13, 12.92
21.22, 12.42
21.30, 12.09
21.38, 11.98
21.47, 12.09
21.55, 11.74
21.63, 11.67
21.72, 11.70
21.80, 11.58
21.88, 11.72
21.97, 11.67
22.05, 11.68
22.13, 11.57
22.22, 11.78
22.30, 11.90
22.38, 11.82
22.47, 11.76
22.55, 11.91
22.63, 11.71
22.72, 12.08
22.80, 11.75
22.88, 11.76
22.97, 12.23
23.05, 12.08
23.13, 12.49
23.22, 12.49
23.30, 13.13
23.38, 13.46
23.47, 13.27
23.55, 13.73
23.63, 13.18
23.72, 11.80
23.80, 12.36
23.88, 11.85
23.97, 11.55
\end{filecontents*}

\begin{filecontents*}{jr_fkrit.csv}
0.05, 3.12
0.13, 3.10
0.22, 3.23
0.30, 3.23
0.38, 3.15
0.47, 3.08
0.55, 3.15
0.63, 3.15
0.72, 3.12
0.80, 3.12
0.88, 3.05
0.97, 3.25
1.05, 3.16
1.13, 3.20
1.22, 2.48
1.30, 3.12
1.38, 3.15
1.47, 3.00
1.55, 2.98
1.63, 2.98
1.72, 2.90
1.80, 2.98
1.88, 2.92
1.97, 2.92
2.05, 2.85
2.13, 2.95
2.22, 2.98
2.30, 2.98
2.38, 2.95
2.47, 3.00
2.55, 2.99
2.63, 2.98
2.72, 2.90
2.80, 2.88
2.88, 2.95
2.97, 2.90
3.05, 2.88
3.13, 2.88
3.22, 2.95
3.30, 2.92
3.38, 2.98
3.47, 2.95
3.55, 2.92
3.63, 2.90
3.72, 3.15
3.80, 3.05
3.88, 3.15
3.97, 2.92
4.05, 3.36
4.13, 3.38
4.22, 3.45
4.30, 3.42
4.38, 3.42
4.47, 3.45
4.55, 3.61
4.63, 3.67
4.72, 3.70
4.80, 3.76
4.88, 3.83
4.97, 4.04
5.05, 4.01
5.13, 4.08
5.22, 4.10
5.30, 4.20
5.38, 4.25
5.47, 4.35
5.55, 4.30
5.63, 4.50
5.72, 4.53
5.80, 4.35
5.88, 4.35
5.97, 4.35
6.05, 4.62
6.13, 4.67
6.22, 4.60
6.30, 4.67
6.38, 4.80
6.47, 4.92
6.55, 5.05
6.63, 5.00
6.72, 5.10
6.80, 5.10
6.88, 5.30
6.97, 5.40
7.05, 5.53
7.13, 5.55
7.22, 5.78
7.30, 5.97
7.38, 6.12
7.47, 6.22
7.55, 6.38
7.63, 6.38
7.72, 6.42
7.80, 6.38
7.88, 6.53
7.97, 6.58
8.05, 6.53
8.13, 6.42
8.22, 6.47
8.30, 6.45
8.38, 6.50
8.47, 6.60
8.55, 6.60
8.63, 6.65
8.72, 6.60
8.80, 6.62
8.88, 6.70
8.97, 6.80
9.05, 6.95
9.13, 7.22
9.22, 7.33
9.30, 7.42
9.38, 7.42
9.47, 7.53
9.55, 7.53
9.63, 7.58
9.72, 7.61
9.80, 7.72
9.88, 7.78
9.97, 7.72
10.05, 7.67
10.13, 7.83
10.22, 7.88
10.30, 7.92
10.38, 7.92
10.47, 8.03
10.55, 8.03
10.63, 8.03
10.72, 7.83
10.80, 7.72
10.88, 7.67
10.97, 7.60
11.05, 7.42
11.13, 7.45
11.22, 7.85
11.30, 7.92
11.38, 7.78
11.47, 7.78
11.55, 7.92
11.63, 7.88
11.72, 7.88
11.80, 7.90
11.88, 7.90
11.97, 7.88
12.05, 7.78
12.13, 7.72
12.22, 7.58
12.30, 7.47
12.38, 7.60
12.47, 7.70
12.55, 7.78
12.63, 7.67
12.72, 7.56
12.80, 7.40
12.88, 7.70
12.97, 7.80
13.05, 7.83
13.13, 8.07
13.22, 8.07
13.30, 8.10
13.38, 8.07
13.47, 7.92
13.55, 7.95
13.63, 7.78
13.72, 7.75
13.80, 7.80
13.88, 7.80
13.97, 7.85
14.05, 7.90
14.13, 8.00
14.22, 8.00
14.30, 8.05
14.38, 8.10
14.47, 8.05
14.55, 7.90
14.63, 7.90
14.72, 7.95
14.80, 8.00
14.88, 7.95
14.97, 7.95
15.05, 7.95
15.13, 7.83
15.22, 7.85
15.30, 7.80
15.38, 7.75
15.47, 7.80
15.55, 7.80
15.63, 7.75
15.72, 7.80
15.80, 7.75
15.88, 7.70
15.97, 7.60
16.05, 7.53
16.13, 7.50
16.22, 7.60
16.30, 7.65
16.38, 7.75
16.47, 7.80
16.55, 7.90
16.63, 7.90
16.72, 7.95
16.80, 7.95
16.88, 7.92
16.97, 7.80
17.05, 7.90
17.13, 7.83
17.22, 7.75
17.30, 7.95
17.38, 8.00
17.47, 8.10
17.55, 8.15
17.63, 8.15
17.72, 8.10
17.80, 8.00
17.88, 8.05
17.97, 8.10
18.05, 8.10
18.13, 8.03
18.22, 7.85
18.30, 7.75
18.38, 7.62
18.47, 7.62
18.55, 7.58
18.63, 7.50
18.72, 7.45
18.80, 7.40
18.88, 7.30
18.97, 7.03
19.05, 6.97
19.13, 6.88
19.22, 6.72
19.30, 6.67
19.38, 6.60
19.47, 6.42
19.55, 6.20
19.63, 6.38
19.72, 6.20
19.80, 6.20
19.88, 6.03
19.97, 5.88
20.05, 5.62
20.13, 5.53
20.22, 5.40
20.30, 5.33
20.38, 5.22
20.47, 5.15
20.55, 5.12
20.63, 5.05
20.72, 4.88
20.80, 4.88
20.88, 4.72
20.97, 4.67
21.05, 4.50
21.13, 4.47
21.22, 4.45
21.30, 4.47
21.38, 4.42
21.47, 4.35
21.55, 4.35
21.63, 4.40
21.72, 4.28
21.80, 4.25
21.88, 4.38
21.97, 4.38
22.05, 4.22
22.13, 4.28
22.22, 4.35
22.30, 4.35
22.38, 4.28
22.47, 4.38
22.55, 4.40
22.63, 3.65
22.72, 4.31
22.80, 4.42
22.88, 4.25
22.97, 4.42
23.05, 4.45
23.13, 4.45
23.22, 4.47
23.30, 4.40
23.38, 4.40
23.47, 4.42
23.55, 4.40
23.63, 4.05
23.72, 3.50
23.80, 4.20
23.88, 4.12
23.97, 3.65
\end{filecontents*}

\begin{tikzpicture}
    \begin{axis}[
        width=\linewidth*\getDarcImageFactor,
        height=8cm,
        xmin=0,
        %ymin=0,
        xmax=24,
        %ymax=500,
        xtick={2,4,6,8,10,12,14,16,18,20,22,24},
        ytick={3.6, 7.1, 14.2, 21.2, 28.5},
        grid=major,
        xlabel={Zeit [Stunden]},
        ylabel={Frequenz [MHz]},
        legend entries={
            MUF \qty{3000}{\kilo\meter},
            $f_\text{c}$ bzw. $f_\text{oF2}$
        },
        legend pos=north west,
    ]
        %
        \addplot [very thick, DARCblue] table [
            x index=0,
            y index=1, 
            col sep=comma
        ] {jr_muf.csv};
        %
        \addplot [very thick, DARCred] table [
            x index=0,
            y index=1,
            col sep=comma
        ] {jr_fkrit.csv};

    \end{axis}
\end{tikzpicture}