The Tracking Analyst does not automatically power up a connected Global Positioning System (GPS) unit. This can be a problem with GPS units that do not have external controls for turning on the power.
Some GPS units require that the RTS line of the serial port be enabled to power on. If the RTS line is not enabled, the GPS unit does not power on. The original COM Port Handler program for Tracking Analyst does not signal the RTS line, because the majority of hand-held commercial GPS units are powered on manually.
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