diff --git a/documents/thesis/chapters/beacon_discipline.tex b/documents/thesis/chapters/beacon_discipline.tex
index 39f7b88..caff12f 100644
--- a/documents/thesis/chapters/beacon_discipline.tex
+++ b/documents/thesis/chapters/beacon_discipline.tex
@@ -1,41 +1,12 @@
 % vim: fdm=marker fmr=<<<,>>>
 \documentclass[../thesis.tex]{subfiles}
 
-% Local preamble <<<
 \graphicspath{
 	{.}
 	{../../figures/}
 	{../../../figures/}
 }
 
-% Notes:
-% \tau is a measured/apparent quantity
-% t is true time
-% priming is required for moving with the signal / different reference frame
-
-% time variables
-\newcommand{\tTrue}{t}
-\newcommand{\tMeas}{\tau}
-
-\newcommand{\tTrueEmit}{\tTrue_0}
-\newcommand{\tTrueArriv}{\tTrueEmit'}
-\newcommand{\tMeasArriv}{\tMeas_0}
-\newcommand{\tProp}{\tTrue_d}
-\newcommand{\tClock}{\tTrue_c}
-
-% phase variables
-\newcommand{\pTrue}{\phi}
-\newcommand{\PTrue}{\Phi}
-\newcommand{\pMeas}{\varphi}
-
-\newcommand{\pTrueEmit}{\pTrue_0}
-\newcommand{\pTrueArriv}{\pTrueArriv'}
-\newcommand{\pMeasArriv}{\pMeas_0}
-\newcommand{\pProp}{\pTrue_d}
-\newcommand{\pClock}{\pTrue_c}
-
-% >>> Local Preamble
-
 \begin{document}
 \chapter{Disciplining by Beacon} %<<<
 \label{sec:disciplining}
diff --git a/documents/thesis/preamble.tex b/documents/thesis/preamble.tex
index c0a6885..faf3036 100644
--- a/documents/thesis/preamble.tex
+++ b/documents/thesis/preamble.tex
@@ -100,9 +100,34 @@
 \newcommand{\MHz}{\text{MHz}}
 
 % Quantities
-\newcommand{\beaconfreq}{\ensuremath{f_\mathrm{beacon}}}
-\newcommand{\phase}{\ensuremath{\varphi}}
+% Notes:
+% \tau is a measured/apparent quantity
+% t is true time
+% priming is required for moving with the signal / different reference frame
 
+\newcommand{\beaconfreq}{\ensuremath{f_\mathrm{beacon}}}
+
+%% time variables
+\newcommand{\tTrue}{t}
+\newcommand{\tMeas}{\tau}
+
+\newcommand{\tTrueEmit}{\tTrue_0}
+\newcommand{\tTrueArriv}{\tTrueEmit'}
+\newcommand{\tMeasArriv}{\tMeas_0}
+\newcommand{\tProp}{\tTrue_d}
+\newcommand{\tClock}{\tTrue_c}
+
+%% phase variables
+\newcommand{\pTrue}{\phi}
+\newcommand{\PTrue}{\Phi}
+\newcommand{\pMeas}{\varphi}
+\newcommand{\phase}{\pMeas} % deprecated
+
+\newcommand{\pTrueEmit}{\pTrue_0}
+\newcommand{\pTrueArriv}{\pTrueArriv'}
+\newcommand{\pMeasArriv}{\pMeas_0}
+\newcommand{\pProp}{\pTrue_d}
+\newcommand{\pClock}{\pTrue_c}
 
 % Names
 % Acronyms