Typo fixes

2 files changed, 5 insertions, 1 deletions

diff --git a/chapter02/content_ch02.tex b/chapter02/content_ch02.tex
index d596c93..dbcbf62 100644
--- a/chapter02/content_ch02.tex
+++ b/chapter02/content_ch02.tex
@@ -995,6 +995,8 @@ The constants can be moved in front of the integrals.
 	\end{equation}
 \end{definition}
 
+x
+
 \begin{definition}{Integration of the Fourier transform}
 	\begin{equation}
 		\mathcal{F}\left\{\int\limits_{t'= -\infty}^{t} \underline{f}(t') \, \mathrm{d} t' \right\} = \frac{1}{j \omega} \underbrace{\underline{F} \left(j \omega\right)}_{= \mathcal{F}\left\{\underline{f}(t)\right\}}
@@ -1002,6 +1004,8 @@ The constants can be moved in front of the integrals.
 	\end{equation}
 \end{definition}
 
+x
+
 \begin{excursus}{Network analysis of reactive electrical circuits}
 	Linear, reactive electrical networks are analysed using the Fourier transform.
 	
diff --git a/exercise01/exercise01.tex b/exercise01/exercise01.tex
index a92da97..efaaadf 100644
--- a/exercise01/exercise01.tex
+++ b/exercise01/exercise01.tex
@@ -64,7 +64,7 @@
 \end{solution}
 
 \begin{question}[subtitle={Frequency Allocation}]
-	An LTE (4G cell phone) signal can occupy a bandwidth of up to \SI{20}{MHz}. One of the bands allocated to LTE is, amongst others, the band 1 (uplink: \SIrange{1920}{1980}{MHz}, uplink: \SIrange{2110}{2170}{MHz}). The range of one LTE base station is a few kilometres.
+	An LTE (4G cell phone) signal can occupy a bandwidth of up to \SI{20}{MHz}. One of the bands allocated to LTE is, amongst others, the band 1 (uplink: \SIrange{1920}{1980}{MHz}, downlink: \SIrange{2110}{2170}{MHz}). The range of one LTE base station is a few kilometres.
 	
 	However, the HF band (\SIrange{3}{30}{MHz}) has the advantage that waves are reflected by the ionosphere and can propagate over longer distances or even across the whole world. Mostly, narrow-band services like AM broadcasting or amateur radio are allocated to the HF band.