Files
50ohm-contents-dl/contents/drawings/264.tex
T
SuperminarenandClaude Sonnet 5.5 f7fa8cfbc1 Swedish adaptation: Instegscertifikat and HAREC content
- Sections and slides rewritten in Swedish; German law and institutions replaced by
  Swedish/CEPT/ITU equivalents (PTS, SSA, PTSFS 2025:1, SSMFS 2008:18), unverified
  statements marked "% TODO VERIFY"
- New toc: INSTEG, HAREC, UPPGRADERING; section idents are Swedish (see ident-map.tsv)
- Exam-question tags, BNetzA question pool, solutions and the German SWL course removed
- Static pages, snippets, applets, READMEs and image alt-texts translated
- TikZ labels translated; SVG drawings regenerated (drawing 689 still fails to build
  upstream: it references a missing photo)
- Changed from the original: not endorsed by DARC e.V., SSA or PTS

Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
2026-10-10 15:03:03 +02:00

58 lines
1.6 KiB
TeX

% Author: Dr. Matthias Jung, DL9MJ
% Year: 2021
\begin{tikzpicture}
% Yagi:
\draw[very thick, gray] plot[
variable=\t,
domain=0:360,
smooth,samples=101
]
({180+60*sin(\t)}:{0.75*pow(sin(\t/2),9)});
\draw[very thick, gray] plot[
variable=\t,
domain=0:360,
smooth,samples=101
]
({35*sin(\t)}:{7*pow(0.95*sin(\t/2),5)});
% Dipole:
\draw[thick] plot[
variable=\t,
domain=0:360,
smooth,samples=101
]
({180+90*sin(\t)}:{3*pow(sin(\t/2),9)});
\draw[thick] plot[
variable=\t,
domain=0:360,
smooth,samples=101
]
({90*sin(\t)}:{3*pow(sin(\t/2),9)});
\draw (-3.500, 0) -- ( 6.000, 0.0);
% Label:
\draw[gray] (5,-1.8) node[]{Riktantenn};
\draw[black] (-2.5,+1.8) node[]{Dipol};
% Bemaßung
\draw(-0.755,2.5) coordinate(s1);
\draw(0,2.5) coordinate(e1);
\DARCmeasure[gray][top]{s1}{e1}{0,0}{0}{$P_\text{R}$}
\draw[ultra thin](start) -- (start|-0,0);
\draw[ultra thin](end) -- (end|-0,0);
\draw(-0.755,2.5) coordinate(s1);
\draw(5.42,2.5) coordinate(e2);
\DARCmeasure[gray]{e1}{e2}{0,0}{0}{$P_\text{V}$}
\draw[ultra thin](end) -- (end|-0,0);
\draw(0,-2.5) coordinate(s2);
\draw(3,-2.5) coordinate(e3);
\DARCmeasure{s2}{e3}{0,0}{0}{$P_\text{D}$}
\draw[ultra thin](end) -- (end|-0,0);
\draw(-3,-2.5) coordinate(e4);
\DARCmeasure{e4}{s2}{0,0}{0}{$P_\mathrm{D}$}
\draw[ultra thin](start) -- (start|-0,0);
\draw[ultra thin](end) -- (end|-0,0);
\end{tikzpicture}