GPSTRANS(1)							    GPS Utility 						       GPSTRANS(1)

NAME

       gpstrans - communicate with Garmin GPS receiver

SYNOPOSIS

       gpstrans [ options ]  [ file ]

DESCRIPTION

       gpstrans  allows  the  user  with a Garmin GPS receiver to upload and download waypoints, routes, almanacs (satellite orbital elements) and
       trackroutes.  If file is not supplied, data will be read from stdin (-ux switch) or written to stdout (-dx switch).

OPTIONS

       -pport set serial I/O device

       -s     set datum, format, offset, and device interactively, and save them in $HOME/.gpstrans.

       -i     identify connected GPS

       -o     turn off GPS device

       -t     get time from GPS

       -ts    get time from GPS and set system time on host

       -dx    download data indicated by x: r=route, t=track, w=waypoint, a=almanac

       -m     With -dt, downloads track data in the format which can be displayed by Mayko mXmap(1).  With -dr or -ur, downloads or uploads  route
	      data in a format compatible with Mayko mXmap.

       -ux    upload data indicated by x: r=route, t=track, w=waypoint, a=almanac

       -v     print program version.

       --verbose
	      Increase verbosity.

       --debug
	      Add debug printouts.

       --help Print help text.

CONNECTION

       For a DB-25 connector, you may need to connect pin 4, 5 and 6, 8, 20 together. This sets handshake signals so that your workstation can use
       the serial port to communicate with the GPS.

			       1     ### #####
			       o o o # # # o # o o o o o
				o o o o o o # o o o o o

       Connect the Garmin cable as follows:

				 2 3	   7
			       o o o o o o o o o o o o o
				o o o o o o o o o o o o

	    Pin 2 goes to DATA IN  (White)
	    Pin 3 goes to DATA OUT (Brown)
	    Pin 7 goes to GROUND   (Black)

       If it doesn't work in this way, try exchanging pins 2 and 3 at the connector.

       The circular connector on a Garmin GPS II receiver can be wired to a DB-9 connector as follows:

		    _____		     _____,-----,
	       3  /	    4		    |	  |	|
		 |  o	o  |		    |	  |	|_____
		 |	   <   <- groove -> |=====|	|----,|
		 |  o	o  |		    |	  |	|    ||
	       2   _____ /  1		    |_____|	|    ||
						  `-----'    ||
							     ||
	       views are looking			     ||
	       into connector				     ||
	       at each end of cable			     ||
							     ||
							     ||
		    5	3 2		________	     ||
		    o o o o o	       |	 \___________||
		     o o o o	       |_________,------------'

	       DB-9 pin 2 goes to circular connector pin 2
	       DB-9 pin 3 goes to circular connector pin 4
	       DB-9 pin 5 goes to circular connector pin 3
	       other pins are not connected

	       (Note: the pin numbers for the circular connector are
	       arbitrary, and may not match the `official' numbers.)

	If your plug is more recent than the one above (ex: etrex) then you need DB-9 or DB-25 to be connected to your Garmin GPS like this:

					      _____,-----,
				   POWER(+)  |	   |	 |
				  groove --> |=====|	 |_____
				   DATA IN   |	   |	 |----,|
				   DATA OUT  |	   |	 |    ||
				   GROUND(-) |_____|	 |    ||
						   `-----'    ||
							      ||
							      ||
							      ||
							      ||
							      ||
							      ||
					 ________	      ||
					|	 \___________||
					|_________,------------'

       DB-25 :

				2 3	  7
			       o o o o o o o o o o o o o
				o o o o o o o o o o o o

	    Pin 2 goes to DATA IN  (White)	Pin 3 goes to DATA OUT (Brown)	    Pin 7 goes to GROUND   (Black)

       DB-9:

					  5   3 2
					  o o o o o
					   o o o o

		pin 2 goes to DATA IN  (White)
		pin 3 goes to DATA OUT (Brown)
		pin 5 goes to GROUND   (Black)
		other pins are not connected

       For testing, you might try setting the GPS to NMEA-Output and using a terminal emulator program like Kermit.  The  GPS  will  send  a  data
       record every 2 seconds. As long as you don't see any data on your computer, gpstrans won't work.

       After finishing the test, be sure to set your GPS receiver to GRMN/GRMN.

ENVIRONMENT

       GPSDEV Serial I/O device (overrides contents of $HOME/.gpstrans, and is overridden by -p switch).

FILES

       $HOME/.gpstrans
	      Has user preferences for datum, format, offset, and serial I/O device (see -s switch, above).

AUTHOR

       GPStrans is Copyright 1995 by Carsten Tschach <tschach@zedat.fu-berlin.de>.  The datum translation routines are based on the program MacGPS
       from John F. Waers <jfwaers@csn.net>.  Mayko mXmap output format by Matthias Kattanek <mattes@ugraf.com>.  German  Grid	by  Andreas  Lange
       <andreas.lange@rhein-main.de>.	etrex  support by Joao Seabra CT2GNL - <seabra@ci.aac.uc.pt>.  Other Garmin formats added by Jim Van Zandt
       <jrvz@comcast.remove.me.net>.

SEE ALSO

       mxmap(1), GPSMan

-								    2006 May 7							       GPSTRANS(1)