[OZAPRS] RE: [TM-D710_TM-V71] $GPWPL output to laptop?

vk7arn vk7arn at bigpond.com
Mon Feb 4 07:42:36 EST 2008

I posted this on Yahoogroups TMD710_TM-V71 in response to a query on how
to keep
a map centred on own location.  Thought I might as well post it here too
break the chain on local v OS buying and to let you know I'm encouraging
our US
cousins to buy VK (and DE, though that's an excellent freebie).  Whilst
I'm at
it, any update on NetAPRS Darryl?

Until I find a better way, I'm using two GPS in my mobile set up, which
of a D710 and iPAQ hx2490 running APRSDEC feeding OziExplorerCE. I use the
second GPS to keep the map centred on my location.  The iPAQ has a serial
and a Bluetooth.  The first GPS is connected to the D710, which is
connected to
the iPAQ via the serial connection into APRSDEC, which in turn interfaces
OziExplorerCE.  The second GPS is Bluetoothed to the iPAQ into
I'm very happy with the result.  A good quality mouse (I think you call
"puck" in the US) GPS is relatively inexpensive and Bluetooth isn't much
so financially it's no great hardship.  I don't see why you couldn't use a
similar arrangement with a laptop.

By the way, I'm a great advocate of OziExplorer and OziExplorerCE for APRS
because of the ability to easily make my own maps suited to whatever use I
at the time.  On a desk or laptop I use NetAPRS  as the interface.  I
that a version of APRSDEC will interface with the TomTom Navigator.


Apologies if I'm telling you nothing you don't know already, but I don't
see any
references to any of this in the mail.
Roger VK7ARN

-----Original Message-----
From: TM-D710_TM-V71 at yahoogroups.com
[mailto:TM-D710_TM-V71 at yahoogroups.com] On
Behalf Of James Ewen
Sent: Monday, 4 February 2008 05:18
To: TM-D710_TM-V71 at yahoogroups.com
Subject: Re: [TM-D710_TM-V71] $GPWPL output to laptop?

On Feb 3, 2008 10:59 AM, Eric <on4hf at telenet.be> wrote:

> I would like to use the $gpwpl data from my tm-d710 to see other aprs
> stations on a map on my laptop in my car.
> I've tryed with UI-view and mappoint but I see no stations on the maps.
> The output is connected on a com port. In UI-view I can see the gps
> data scrolling by but nothing on the map.
> Is there another way to do this or am I doing something wrong?

The $GPWPL strings are NMEA waypoint strings that are usually sent to
the attached GPS.

UI-View is an APRS program, and it is looking for APRS strings.

MapPoint is probably looking for NMEA strings such as $GPRMC and $GPGGA.

It would be nice to be able to leave the Kenwood in APRS mode, and
have the $GPWPL strings grabbed by a laptop, and shown on a map.
Instead of buying a big screen GPS, you could use the laptop to
display the stations around you. However, the laptop would not be able
to determine it's location to keep the map centered from the $GPWPL
data strings received from the Kenwood.

This type of operation would require a new program, or at least a new
routine to parse the waypoint data. UI-View is not going to be able to
add this functionality in, unless it is done by an add-on program.


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