NASA's 'World Wind' software (see http://worldwindcentral.com/wiki/NASA_World_Wind_Download) can be used for real-time visualization of positions provided through BNC's NMEA IP output port. You need the 'GPS Tracker' plug-in available from http://worldwindcentral.com/wiki/GPS_Tracker for that. The 'Word Wind' is not meant for showing centimeter level details. +
+ + ++You may like to process only those observations which are received first within a maximum of "Sync corr" seconds after the reception of a clock correction. Using only observations which come in sync with the corrections can avoid a possible high frequency noise of PPP solutions. Such noise could result from processing all observations regardless of how late after a clock correction they were received. +
++Default is an empty option field, meaning that you want BNC to determine a PPP solution from all incomming observations through applying the latest received clock correction.