P Other - arthurbenemann/ardupilot GitHub Wiki
Other features that aren't specific to the modes already described in the menu at left:
- You can send NMEA (GPS) output to the serial port. Press control-g and you will get a box asking for a comport and baud rate to output standard nmea data at 2 hz, to any serial port. One application would be to use com2com to emulate a serial port to use with third party applications.