RS232 data visualisation using AntiTermPro

Our AntiTermPro application provides an RS232 serial port terminal interface to allow interaction with all of our AntiLog series RS232 data loggers. The application provides many additional features including the ability to visualise incoming RS232 serial port data.

Navigation information from Global Navigation Satellite System (GNSS) receivers is often available as a stream of ASCII NMEA sentences via one or more RS232 serial ports. Our AntiTermPro application can decode and interpret these NMEA sentences in real time and provide a graphical display of the content.

If you click the 'Visualise' button in AntiTermPro whilst streaming NMEA data from a GNSS navigation receiver, you are presented with a 'Visualise GNSS' display.

AntiLogPro units fitted with the 'G' option are able to simulate live NMEA data streams at a user defined static world location. The following example shows such an output.

You can select which satellite constellation to display and there is a 'Hold' feature which locks the current content for close inspection.

If you are using an older GPS receiver, there may be an issue with the displayed date being incorrect due to a well known GPS week 1024 rollover issue. GPS receivers can only represent the date over a 1024 week period. You can have AntiTermPro automatically correct the displayed date and time based on the provided preset rollover offsets.

If you record NMEA data using any of our AntiLog products, you have the ability to replay the recorded data in real time which can be used with this visualisation display. Even if you don't have time stamping enabled during record, AntiLog units are still able to replay the date in 'real time' using date and times in the NMEA message content.