Index: /trunk/BNC/src/pppWidgets.cpp
===================================================================
--- /trunk/BNC/src/pppWidgets.cpp	(revision 6719)
+++ /trunk/BNC/src/pppWidgets.cpp	(revision 6720)
@@ -151,5 +151,9 @@
   connect(_mapSpeedSlider, SIGNAL(valueChanged(int)), BNC_CORE, SIGNAL(mapSpeedSliderChanged(int)));
 
-  _staTable->setWhatsThis(tr("<p>Specify values for Sigma and Noise of the Station's North, East and Height coordinates in meters. Specify also a Sigma for a-priory model based Tropospheric delays and their expected variation (Noise).</p><p><ul><li>A Sigma of 100.0 meters may be an appropriate choice for the initial N/E/H coordinates. However, this value may be significantly smaller (i.e. 0.01) for stations with well known a-priory coordinates.</li><li>A white Noise of 100.0 meters for the estimated N/E/H coordinates may be appropriate considering the potential movement of a rover position.</li><li>A value of 0.1 meters may be an appropriate Sigma for the a-priory model based Tropospheric delay estimation.</li><li>Enter a Noise in meters per second to describe the expected variation of the tropospheric effect. Supposing 1Hz observation data, a value of 3e-6 would mean that the tropospheric effect may vary for 3600 * 3e-6 = 0.01 meters per hour.</li></ul></p>"));
+  _staTable->setWhatsThis(tr("<p>Specify values for Sigma and white Noise of the Station's North, East and Height coordinates in meters. Specify also a Sigma in meters for a-priory model based Tropospheric delays and for the delay's Noise in meters per second.</p><p>'Sigma' is meant to describe the uncertainty of a single coordinate or tropospheric delay estimated for one epoch. 'Noise' is meant to describe the variation of estimates from epoch to epoch.</p><p><ul><li>A Sigma of 100.0 meters may be an appropriate choice e.g. for the initial N/E/H coordinates. However, this value may be significantly smaller (i.e. 0.01) for stations with well known a-priory coordinates.</li><li>A Noise of 100.0 meters for the estimated N/E/H coordinates may also be appropriate considering the potential movement of a rover position.</li><li>A value of 0.1 meters may be an appropriate Sigma for the a-priory model based Tropospheric delay estimation.</li><li>Specify a Noise to describe the expected variation of the tropospheric effect over time. Supposing 1Hz observation data, specifying a value of 3e-6 would mean that the tropospheric effect may vary for 3600 * 3e-6 = 0.01 meters per hour.</li></ul></p>"));
+
+  _seedingTime->setWhatsThis(tr("<p>Enter the lenght of a startup period in seconds for which you want to fix the PPP solutions to known a-priory coordinates as introduced through the 'Coordinates' option. Adjust 'Sigma N/E/H' in the PPP Stations table according to the coordinates precision. Fixing a-priory coordinates is done in BNC through setting 'Sigma N/E/H' temporarily to zero.</p><p>This option allows the PPP solution to rapidly converge. It requires that the antenna remains unmoved on the a-priory known position throughout the startup period.</p><p>A value of 60 is likely to be an appropriate choice.</p><p>Default is an empty option field, meaning that you don't want BNC to fix the PPP solutions during startup to known a-priory coordinates.</p>"));
+
+  _corrWaitTime->setWhatsThis(tr("<p>Specifying 'no' means that BNC will not wait and process each epoch of data immediately after its arrival using satellite clock corrections available at that time.</p><p>Specifying a non-zero value (i.e. 5 sec) means that data will be buffered and the processing of each buffered epoch is postponed till satellite orbit and clock corrections not older than '5 sec' (example) become available.</p>"));
 
   _plotCoordinates->setWhatsThis(tr("<p>BNC allows to produce a time series plot of coordinates for one Real-time PPP solution in the 'PPP Plot' section below. Specify the 'Mountpoint' of the stream whose coordinate displacements you would like to see plotted.</p><p>Default is an empty option field, meaning that BNC shall not produce a time series plot of PPP coordinate displacements.</p>"));
