Index: trunk/BNC/bnchelp.html
===================================================================
--- trunk/BNC/bnchelp.html	(revision 2092)
+++ trunk/BNC/bnchelp.html	(revision 2093)
@@ -940,5 +940,5 @@
 <p><a name="pppmount"><h4>3.11.1 Mountpoint - optional</h4></p>
 <p>
-Specify a mountpoint if you want BNC to derive coordinates for the affected receiver position through a PPP solution.
+Specify a mountpoint if you want BNC to derive coordinates for the affected rover position through a PPP solution.
 </p>
 
Index: trunk/BNC/bncwindow.cpp
===================================================================
--- trunk/BNC/bncwindow.cpp	(revision 2092)
+++ trunk/BNC/bncwindow.cpp	(revision 2093)
@@ -385,6 +385,6 @@
   _serialFileNMEALineEdit->setWhatsThis(tr("<p>Specify the full path to a file where NMEA messages coming from your serial connected receiver are saved.</p>"));
   _serialHeightNMEALineEdit->setWhatsThis(tr("<p>Specify an approximate 'Height' above mean sea level in meter for your VRS to simulate an inital NMEA-GGA message.</p><p>The setting of this option is ignored in case of streams coming from physical reference stations.</p>"));
-  _pppMountLineEdit->setWhatsThis(tr("<p>Specify a mountpoint if you want BNC to derive coordinates for the affected receiver position through a PPP solution.</p>"));
-  _pppStaticCheckBox->setWhatsThis(tr("<p>By default BNC considers the rover position as mobile.</p><p>Tick 'Static' to consider a static observation sitatuion and adapt appropriate filter characteristics for that.</p>"));
+  _pppMountLineEdit->setWhatsThis(tr("<p>Specify a mountpoint if you want BNC to derive coordinates for the affected receiver position through a PPP solution.</p><p>Note that PPP in BNC requires to also pull a stream carrying RTCM Version 3 satellite orbit and clock corrections to Broadcast Ephemeris. Pulling in addition a stream carrying Broadcast Ephemeris messages in short repetition rates is suggested.</p>"));
+  _pppStaticCheckBox->setWhatsThis(tr("<p>By default BNC considers the rover receiver as mobile.</p><p>Tick 'Static' to consider a static observation sitatuion and adapt appropriate filter characteristics for that.</p>"));
   _pppUsePhaseCheckBox->setWhatsThis(tr("<p>By default BNC applies a PPP solution using an ionosphere free P3 linear combination of code observations.</p><p>Tick 'Use phase obs' for an ionosphere free L3 linear combination of phase observations.</p>"));
   _pppEstTropoCheckBox->setWhatsThis(tr("<p>By default BNC does not introduce troposphere parameters when estimating coordinates.</p><p>Tick 'Estimate tropo' to introduce troposphere parameters when estimating coordinates.</p>"));