From 9249175f5c8c93faa0713180ddc1c34fcf661003 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9l=C3=A8ne=20Corbineau?= <selene.corbineau@ens.fr>
Date: Mon, 1 Jun 2026 20:57:42 +0200
Subject: [PATCH] Added center/deviation column for amateur bands

---
 handbook.tex | 31 ++++++++++++++++++++-----------
 1 file changed, 20 insertions(+), 11 deletions(-)

diff --git a/handbook.tex b/handbook.tex
index 10abc81..7f1093b 100644
--- a/handbook.tex
+++ b/handbook.tex
@@ -8,6 +8,7 @@
 \usepackage[french]{babel}
 \usepackage{graphicx}
 \usepackage{tikz}
+\usepackage{makecell}
 
 \newenvironment{fulltab}[1]{\begin{center}\begin{tabular*}{\linewidth}{@{\extracolsep{\fill}} #1}}
 {\end{tabular*}\end{center}}
@@ -121,6 +122,14 @@ With color rings, read with outermost ring to the right
 \end{itemize}
 With digits: 2 digits + exponent. The base units are \unit{\ohm}, \unit{\micro\henry} and \unit{\pico\farad}.
 
+\paragraph{Fuse markings}
+\begin{enumerate}
+\item First character group is the speed, going from "TT" through "M" to "FF".
+\item This is followed by the current in amperes.
+\item The following character indicates either "H"igh or "L"ow breaking capacity.
+\item Finally the voltage rating is given.
+\end{enumerate}
+
 \paragraph{Preferred numbers}
 \begin{fulltab}{l lll lll lll lll lll lll lll lll}
 \toprule
@@ -194,19 +203,19 @@ for larger transistors.
 \chapter{Telecommunications}
 \section{Amateur radio}
 \paragraph{HF frequency allocations (Mainland France)}
-\begin{fulltab}{lll}
+\begin{fulltab}{llll}
 \toprule
-Name & Range & Comments\\
+Name & Range & Center/deviation & Comments\\
 \midrule
-80\unit{\meter} & 3.500 - 3.800 \unit{\mega\hertz} & Shared \\
-60\unit{\meter} & 5.3515 - 5.3665 \unit{\mega\hertz} & Secondary \\
-40\unit{\meter} & 7.000 - 7.200 \unit{\mega\hertz} & \\
-30\unit{\meter} & 10.100 - 10.150 \unit{\mega\hertz} & Secondary, 15W EIRP \\
-20\unit{\meter} & 14.000 - 14.350 \unit{\mega\hertz} & \\
-17\unit{\meter} & 18.068 - 18.168 \unit{\mega\hertz} & \\
-15\unit{\meter} & 21.000 - 21.450 \unit{\mega\hertz} & \\
-12\unit{\meter} & 24.890 - 24.990 \unit{\mega\hertz} & \\
-10\unit{\meter} & 28.000 - 29.700 \unit{\mega\hertz} & \\
+80\unit{\meter} & 3.500 - 3.800 \unit{\mega\hertz} & 3.646 \unit{\mega\hertz} $\pm$ 4\% & Shared \\
+60\unit{\meter} & 5.3515 - 5.3665 \unit{\mega\hertz} & 5.359 \unit{\mega\hertz}$\pm$ 1\% & Secondary \\
+40\unit{\meter} & 7.000 - 7.200 \unit{\mega\hertz} & 7.099 \unit{\mega\hertz} $\pm$ 1\% & \\
+30\unit{\meter} & 10.100 - 10.150 \unit{\mega\hertz} & 1.125 \unit{\mega\hertz} $\pm$ 2\% & \makecell{Secondary\\ 15W EIRP} \\
+20\unit{\meter} & 14.000 - 14.350 \unit{\mega\hertz} & 14.174 \unit{\mega\hertz} $\pm$ 1\% & \\
+17\unit{\meter} & 18.068 - 18.168 \unit{\mega\hertz} & 18.118 \unit{\mega\hertz} $\pm$ .2\% & \\
+15\unit{\meter} & 21.000 - 21.450 \unit{\mega\hertz} & 21.224 \unit{\mega\hertz} $\pm$ 1\% & \\
+12\unit{\meter} & 24.890 - 24.990 \unit{\mega\hertz} & 24.940 \unit{\mega\hertz} $\pm$ .2\% & \\
+10\unit{\meter} & 28.000 - 29.700 \unit{\mega\hertz} & 28.837 \unit{\mega\hertz} $\pm$ 3\% & \\
 \bottomrule
 \end{fulltab}