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[aprssig] Waypoints to GPS Receiver: Navigation

Wes Johnston, AI4PX wes at ai4px.com
Fri Aug 24 10:36:24 UTC 2007


I wouldn't say "badger" garmin.... they were very responsive and actually
had a fix for me in just a few days.  I'm certain that if you bring this to
their attn, they'll fix it... mention the gpsmap276c nmea problem and it
should ring bells for them.

Wes


On 8/22/07, Jason Rausch <jason at ke4nyv.com> wrote:
>
> I believe that Wes AI4PX ran into this same issue with
> him Map276C.  I think he had to badger Garmin until
> they admitted it was a problem and fixed it in a
> firmware update.
>
> Over in the HamHUD community, we have been beta
> testing new firmware that has $GPWPL waypoint output
> for any GPS that can accept them, such as the Map60
> you have.  This is the same feature available on the
> Kenwood D7/700 radios, ADS's OpenTracker 1+ and
> Tracker2 and the obscure Anti-Tracker (which I think
> was only homebrew hardware, never in production).  I
> have been testing the new HamHUD firmware with a
> Map176C, eTrex Legend and 60cs.  All are working well
> and DO NOT append the repeated waypoint with a numeric
> identifier.  Instead, they just redraw the waypoint,
> with the same name, at the new location on the map.
> This make mobile APRS mapping a real treat!
>
> Jason KE4NYV
> RPC Electronics
> www.rpc-electronics.com
> HamHUD Team - www.hamhud.net
>
>
> --- gerheim at cox.net wrote:
>
> > I finally have a GPS receiver that _receives_ NMEA
> > data. A little experimentation has shown that the
> > GPS receiver (GPSmap 60) attempts to uniquely name
> > each waypoint it receives, even if they come from
> > the same station/SSID.
> >
> > For example, waypoints from WA1XYZ-15 may be named
> > "WA1XYZ 151", "WA1XYZ 154", etc...
> >
> > This leaves about 3 questions:
> > 1) Is there a way to navigate to a "moving target"?
> > If I navigate to "WA1XYZ 151", it'll keep sending me
> > to where WA1XYZ _was_ when that waypoint was sent.
> >
> > 2) Is there any rhyme or reason behind the naming
> > convention?  I couldn't figure any out.  The
> > characters it appended seemed to be random.
> > 2a) How many unique names can it associate with the
> > same call/SSID? My guess is that it'll repeat or jam
> > up before it runs through the complete set of valid
> > characters.
> >
> > 3)  Is there a way to identify the most
> > recently-received waypoint?
> >
> >
> > --
> > -Al Gerheim
> >
> > HP-49G+ Software Page:
> > http://members.cox.net/above
> >
> > _______________________________________________
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> > aprssig at lists.tapr.org
> >
> https://lists.tapr.org/cgi-bin/mailman/listinfo/aprssig
> >
>
>
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-- 
In theory there is no difference between practice and theory.
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