PSN-L Email List Message

Subject: Re: WinPlotGPS
From: "Larry Cochrane" lcochrane@..............
Date: Wed, 28 May 2003 21:00:15 -0700


> Hi,
> I've only just discovered this program(!) and tried it with my Delorme
> Earthmate.  I couldn't get it to work, probably for configuration reasons.  I
> know the unit is working as I can use it with my palm pda.  There are a few
> questions and suggestions I'd like to make:
> Is Earthmate compatible with one of the known devices or should I pick
> Settings|Options|GPS Type: Other ?

You should use Other for your GPS receiver.

> What are the implications of choosing Other?

No predefined initialization command is send to the receiver.

> Not having a spec for my Earthmate I don't know what baud rate it's running
> does anyone know?  I could just plug it in and run Hyperterminal to try to
> it.

If the Earthmate outputs standard NMEA messages, the baud rate should be 4800.

> My pda shows the bytes streaming from the receiver.  Whilst this is just
> gobbledegoop (to me) it's very useful in that it shows that the device is
> running and the bytes are getting in to the software.  This would be a useful
> addition to WinPlotGPS (maybe it already has this feature(?))

To view the data from the GPS receiver open the NMEA Display window using the
View / View Messages menu items.

For WinPlotGPS to work with  the Earthmate receiver, the receiver must output
the follow NMEA messages $GPRMC, $GPGGA, $GPGSA and $GPGSV.

In the message viewer window you should see GPS messages like this:


Hope this helps. Let me know if you get it working,

Larry Cochrane
Redwood City, PSN


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