[aprssig] Compatible GPS for waypoint upload?

K7FTP k7ftp at commtechreview.net
Tue Jun 12 17:11:08 EDT 2007

We are using a Lowrance GlobalMap Baja 540c with great
results thus far in our Project Jeep.  More details are available at

It features an RS-232 NMEA-0183 port, color screen, and
can take maps via memory cards.  The maps are proprietary,
but they are reasonably up to date.  We are testing a Western-
US map with topo data installed. 

One problem you will find with any of the built-in units - such
as the Eclipse AVN-7000 which we looked at a few months 
ago - is that there is no RS-232 port.  These are usually the best
"navigation" units (Turn Left at the next intersection, Dear), but 
they are built to tell you where to go and to play your music for
you, not for anything else.  

When you get into units that have the NMEA-0183 port, you 
tend to give up some of the turn-by-turn navigation, but you 
gain a lot on our side of things.  At least, that's what I found.  

----- Original Message ----- 
From: "Stephen Peters" <scpeters at mac.com>
To: <aprssig at lists.tapr.org>
Sent: Tuesday, June 12, 2007 1:00 PM
Subject: [aprssig] Compatible GPS for waypoint upload?

Hello all,

I've been looking around for an automotive style GPS (autorouting,  
good basemaps, color screen etc) that can accept waypoint uploads.   
I've been disappointed to find that most of the modern GPS units do  
not include an NMEA-0183 serial port, and instead only a USB port.

With the advent of so many "waypoint upload" style APRS products, Can  
anyone recommend a good GPS unit to connect to the other end of such  
a device!

For example, none of the Garmin NUVI series would work, neither would  
the modern Magellan units that I've seen.  The Tomtom website doesn't  
even provide enough information to determine if the port exists!

There are some intriguing(?) products that could serve this market,  
but I don't know much about them, for example:
(Maybe one of them could run Xastir??)

Do you have a GPS that you use with $GPWPL sending hardware that you  
would recommend?

I am already familiar with the Garmin 276c, and a number of the older  
monochrome units.

Thank you in advance,


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