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ZL3AI > APRDIG 20.03.03 09:53l 140 Lines 5136 Bytes #999 (0) @ WW
BID : 1043-ZL3AI
Read: GUEST
Subj: TAPR Digest, Mar 17, 4/4
Path: DB0FHN<DB0RGB<OK0PPL<RZ6HXA<WA7V<W7NTF<VK3TE<VK7AX<ZL2BAU<ZL3VML
Sent: 030319/1101Z @:ZL3VML.#80.NZL.OC #:62032 [Chch-NZ] FBB7.00i $:1043-ZL3AI
From: ZL3AI@ZL3VML.#80.NZL.OC
To : APRDIG@WW
Subject: Dumb tracker GPS Map displays
From: Bob Bruninga <bruninga@usna.edu>
Date: Mon, 17 Mar 2003 20:51:25 -0500 (EST)
X-Message-Number: 28
This came up on the SPEC list, but it is a good reminder to everyone that
uses a DUMB tracker:
If you use a DUMB tracker with a GPS that has MAP displays, remember that
someone can send you OBJECTS that will display on your GPS map just like
the D7 does. This is useful for SAR or other organized events where you
may be using DUMB trackers, but need to send OBJECTS to those drivers on
their GPS maps.
To do it, all you have to do is send a NMEA WAYPOINT packet and the dumb
tracker will pass the WAYPOINT to the GPS which will display it. Not many
people use this much, but its a neat feature if you have a dumb tracker
and a need. To assist this, one of my APRSdos programs can be set to
convert EVERY PACKET HEARD to a waypoihnt and retransmit it.
You would never do this on 144.39 in a busy area, but if you have a
specail event with lots of dumb trackers it is a way to let them ALL see
everyone on their GPS maps. Just like the D7 does...
Bob
de WB4APR@amsat.org, Bob
PCsat WEB page http://www.ew.usna.edu/~bruninga/pcsat.html
ISS-APRS FAQ: http://www.ew.usna.edu/~bruninga/iss-faq.html
CUBESAT Designs http://www.ew.usna.edu/~bruninga/cubesat.html
APRS LIVE pages http://www.ew.usna.edu/~bruninga/aprs.html
APRS SATELLITES http://www.ew.usna.edu/~bruninga/astars.html
MIM/Mic-E/Mic-Lite http://ssdl.stanford.edu/mims/
---------- Forwarded message ----------
Date: Mon, 17 Mar 2003 20:38:37 -0500 (EST)
From: Bob Bruninga <bruninga@usna.edu>
To: APRS Spec Discussion List <aprsspec@lists.tapr.org>
Cc: APRS Spec Discussion List <aprsspec@lists.tapr.org>
Subject: [aprsspec] Re: NMEA recommended sentences for APRS stations
On Tue, 18 Mar 2003, Darryl Smith wrote:
>...and one of the recommended decoded APRS strings is $GPWPT. I would
>like to suggest that this is removed from the recommendations on the
>last page of chapter 6. I have **NEVER** seed this packet sent on air...
There is a very important reason for that to be in there. It is so you
can send POSITION data to anyone with only a TNC and GPS! It lets
a TRACKER built from just a TNC and GPS to display POSITION data
(sent in Waypoint format) to be displayed on the GPS map. Thus, you can
send POSIT data to Search teams or anyone using their GPS as the display.
There are many many features in APRS that "most people" never use and not
seeing them on the air, does not make them any less valuable... to the
person that does need it...
Bob
de WB4APR@amsat.org, Bob
PCsat WEB page http://www.ew.usna.edu/~bruninga/pcsat.html
ISS-APRS FAQ: http://www.ew.usna.edu/~bruninga/iss-faq.html
CUBESAT Designs http://www.ew.usna.edu/~bruninga/cubesat.html
APRS LIVE pages http://www.ew.usna.edu/~bruninga/aprs.html
APRS SATELLITES http://www.ew.usna.edu/~bruninga/astars.html
MIM/Mic-E/Mic-Lite http://ssdl.stanford.edu/mims/
----------------------------------------------------------------------
Subject: Re: Dumb tracker GPS Map displays
From: WA8LMF2@aol.com
Date: Mon, 17 Mar 2003 20:58:32 EST
X-Message-Number: 29
In a message dated 3/17/2003 5:53:39 PM Pacific Standard Time,
bruninga@usna.edu writes:
>To do it, all you have to do is send a NMEA WAYPOINT packet and the dumb
>tracker will pass the WAYPOINT to the GPS which will display it. Not many
>people use this much, but its a neat feature if you have a dumb tracker
>and a need.
You are assuming the dumb tracker uses a fullblown TNC. I suspect that most
dumb trackers today are one-way devices like the TinyTrak or TigerTrack that
transmit but can't receive!
Stephen H. Smith wa8lmf @ aol.com
Home Page: http://wa8lmf.com
Ham Radio/Mobile SSTV page: http://members.aol.com/wa8lmf/ham
APRS Stuff
http://members.aol.com/wa8lmf/aprs
----------------------------------------------------------------------
Subject: [Re: [WyCoUtAPRS] [Fwd: APRS in Wyoming...]]
From: Tyler Griffiths <n7uwx@attbi.com>
Date: Mon, 17 Mar 2003 19:34:18 -0700
X-Message-Number: 30
-------- Original Message --------
Subject: RE: [WyCoUtAPRS] [Fwd: [aprssig] APRS in Wyoming...]
Date: Mon, 17 Mar 2003 15:47:53 -0700
From: "Jake" <jakie@vcn.com>
Reply-To: WyCoUtAPRS@yahoogroups.com
To: <WyCoUtAPRS@yahoogroups.com>
There is one person I know of in Sheridan that might hear them and the
Copper Mountain digi might hear them if they are high enough. I posted this
to the APRSsig but my posts are blocked.
Tim/KJ7AZ
Forwarded from the WyCoUtAPRS sig...
-----Original Message-----
From: Tyler Griffiths [mailto:n7uwx@attbi.com]
Sent: Monday, March 17, 2003 2:51 PM
To: WyCoUtAPRS
Subject: [WyCoUtAPRS] [Fwd: [aprssig] APRS in Wyoming...]
Just forwarding this from the APRS sig.
Any body in Wy. to answer this.
Tyler N7UWX
"Jeffrey P. Nast" wrote:
>Hello all,
>
>I am a volunteer leader for an organization called Royal Rangers
---
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