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ZL3AI > APRDIG 14.01.04 14:05l 257 Lines 9695 Bytes #999 (0) @ WW
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To : APRDIG@WW
TAPR APRS Special Interest Group Digest for Monday, January 12, 2004.
1. Re: Using USB GPS receiver with Delorme Street Atlas Version 4?
2. Re: Linux Kernel
3. Dos maps on findU
4. Re: Linux Kernel
5. Re: Using USB GPS receiver with Delorme Street Atlas Version 4?
6. NMEA questions
7. Info about APRS software.
8. Re: Info about APRS software.
9. Re: NMEA questions
10. Re: NMEA questions
11. Sample Packets
12. Re: aprssig digest: January 11, 2004
13. Need Help! test transmission tomorrow
14. New serial port software gizmo to map serial ports over TCP/IP
15. Re: NMEA questions
16. Re: NMEA questions
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Subject: Re: Using USB GPS receiver with Delorme Street Atlas Version 4?
From: "Stephen H. Smith" <WA8LMF2@aol.com>
Date: Sun, 11 Jan 2004 20:52:10 -0800
X-Message-Number: 1
oderr@bellsouth.net wrote on 1/11/2004, 8:25 PM:
>My GPS receiver is a USB device that works with SA version 4 on my
>laptop.
>How can I feed my postion information to my packet transmitter
>operating on
>Serial Com 2?
I presume that by "feed my postion information to my packet transmitter
operating on Serial Com 2" , you actually mean get it into an APRS
application that then communicates with a TNC on COM2. Further, I
assume you are referring to the new usb-interfaced Delorme Earthmate
that I refer to as "Earthmate II" to distinguish it from the larger,
earlier serial-interfaced device also called "Earthmate".
You can't use it directly. Normal ham applications, and virtually all
moving map applications except for recent versions of Street Atlas,
only work with serial-interfaced devices. You can either:
A) Get the optional serial cable for the Earthmate II from Delorme.
(The device actually has both USB and serial interfaces internally.
Depending on which cable you snap into the body of the device, you can
have either USB or traditional serial output.) Then plug the unit into
an actual serial port on the PC (which you probably don't have since the
one-and-only serial port is already being used by the TNC).
B) Install the Delorme-provided driver that intercepts the data from
the USB port and creates a simulated (virtual) serial port that uses a
currently unused COM number on the PC.. You then set the APRS or other
mapping program to use this virtual COM number for its GPS input. [
This is exactly the same technique used by serial-to-USB converter-cable
dongles that turn a USB port on a PC into a traditional serial port. ]
Stephen H. Smith wa8lmf (at) 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
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Subject: Re: Linux Kernel
From: KC7ZRU <kc7zru@arrl.net>
Date: Sun, 11 Jan 2004 22:54:59 -0700
X-Message-Number: 2
Richard Mulvey wrote:
>Almost, but not quite.
>
>When you grab the sources via CVS, you *always* need to do a
>./bootstrap.sh before you run ./configure . It does a few more things
>than just automake.
DOH! Yup - that's right. ./bootstrap.sh replaced all the automake -a
stuff. Thanks!
>Secondly, there's *no* need to keep a shell open forever. When you
>want to update to the latest sources, just cd to the xastir directory,
>and run cvs update .
Yup - that's what I thought I was saying. No need to logout of CVS. I
had no intention of saying anything one way or the other about a shell.
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Subject: Dos maps on findU
From: Steve Dimse <k4hg@tapr.org>
Date: Mon, 12 Jan 2004 09:23:08 -0500
X-Message-Number: 3
Some of you may remember the examples I've mentioned in the past of using
APRSdos maps within findU, like the Baker-to-Vegas page
http://b2v.findu.com/
There are times when the less detailed maps are helpful for drawing
attention to the stations being tracked, so I wanted to make this available
in a more general form. I also want this to prepare for the day when
MapBlast will finally disappear. Thanks to prodding from Bob, I finally
tracked down a bug in the code, so it is now officially released.
http://www.findu.com/cgi-bin/dmap.cgi
All of the maps from javAPRS days are available (the default maps from
APRSdos and others contributed over the years) with the suffix .mp because
.map has special meaning to web server. I do not want to get into the
business of posting maps, so as with geo files, you can host the maps on
any server, with this format:
http://www.findu.com/cgi-bin/dmap.cgi?map=http://www2.findu.com/maps/flsouth.mp
These must for now be uncompressed format APRSdos maps. As you may notice
with the above example, the default view does not work with all maps, I'll
be working on that in the future.
You can embed the maps within your own pages with the <IMG> tag, first get
the map you want using dmap, say this view of the Keys:
http://www.findu.com/cgi-bin/dmap.cgi?zoom=1&click.x=198&click.y=331&=
offsetx=357
&offsety=268&map=flsouth.mp&scale=1.404&last=1&width=640&height=
=480
Look at the source of the page (see the edit menu of your browser, and look
for the input tag:
<input type="image" name="click"
src="http://www.findu.com/cgi-bin/dosmap2.cgi?call=*&last=1&map=fls=
outh.mp&scale
=0.8424&offsetx=365&nocall=&offsety=529&width=640&height=480"><=
input
type="hidden" name="offsetx" value="365">
convert this to an img tag:
<img
src="http://www.findu.com/cgi-bin/dosmap2.cgi?call=*&last=1&map=fls=
outh.mp&scale
=0.8424&offsetx=365&nocall=&offsety=529&width=640&height=480">
In the future I'll be adding a map list feature (as in javAPRS), and doing
some other tweaks. Long range I'm also planning to support other APRS
format maps, again as the contigency against the demise of MapBlast.
Steve K4HG
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Subject: Re: Linux Kernel
From: "Curt, WE7U" <archer@eskimo.com>
Date: Mon, 12 Jan 2004 08:26:11 -0800 (PST)
X-Message-Number: 4
On Sun, 11 Jan 2004, James Jolin wrote:
>Tnx to all who replied. The kernel does support ax25 and aprs. I can
>load ax25 modules with modprobe, but they disappear on reboot. There is
>away to keep them, I think, but I can't remember what it is. Anyway, I
>downloaded the suse xastir rpm and that seemed to go fairly well, but it
>needs some "tweaking." Might have to join the xastir group.
Be aware that the SuSE distributed RPM is several years old. Run
one of the development releases (jan 9th 2004?) instead.
http://www.xastir.org
-----------------------------------------------------------------
Curt, WE7U archer at eskimo dot com
Arlington, WA, USA http://www.eskimo.com/~archer
"Lotto: A tax on people who are bad at math." -- unknown
"Windows: Microsoft's tax on computer illiterates." -- WE7U
"The world DOES revolve around me: I picked the coordinate system!"
----------------------------------------------------------------------
Subject: Re: Using USB GPS receiver with Delorme Street Atlas Version 4?
From: Gonzales Andy <agonzales@arc.nasa.gov>
Date: Mon, 12 Jan 2004 10:49:58 -0800
X-Message-Number: 5
Here is what I did using SA 2003 and WinAPRS on a Windows notebook computer
with only 1 USB port and no serial ports:
I have a Kenwood D7 HT and Magellan 310 GPS with the serial adapter that
screws onto the back. I also have a four port USB hub pluged into the
laptop.
I spliced the appropriate wiring into the adapter wiring using the diagram
in the Kenwood manual. The serial connector on the Magellan adapter
connects to a Keyspan USB converter which plugs into the USB hub. This
provides GPS data to SA when the appropriate device is selected in that
program.
I made a serial cable to connect to the TNC port on the D7, again using the
manual's diagrams. This serial connecter is plugged into a second Keyspan
which goes into the hub. This allows the TNC to communicate with Win APRS.
I no longer use the Earthmate GPS for SA allthough the device and its USB
cable are still physically installed in my SUV.
I just didn't wnat to "downgrade" o an earlier version of SA so I could run
SA + APRS.
--
Andy Gonzales
KG6RWO
NASA / Ames Research Center
Moffett Field, CA 94035-1000
Bldg. N-244, Rm. 240
MS 244-19
agonzales@arc.nasa.gov
650-604-0309
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Subject: NMEA questions
From: "Scott Miller" <scott@opentrac.org>
Date: Mon, 12 Jan 2004 11:32:48 -0800
X-Message-Number: 6
Got some quick questions on NMEA 0183...
The docs I have list three possible values for the fix validity in $GPGGA -
0 for no fix, 1 for gps fix, and 2 for differential fix. While reviewing
some data sent to me, though, I see an example of a 6 in that field. Does
anyone know what this might indicate? It's not a proprietary sentence, so
there shouldn't be any proprietary values, should there?
Also, I see a lot of references to $xxGGA and such, which I take to mean
that it might not always be GP. What else could it be? Do LORAN receivers
put something different there? I've never seen anything but GP.
I think I'm going to add support for GPGLL (lat/lon/time) in the OpenTracker
since it won't add much parsing overhead. GPGSA and Garmin's PGRME are
also on the to-do list to support the OpenTRAC protocol's ability to report
DOP values and positional ambiguity. If there's anything else you think
might be worth parsing, let me know.
Thanks...
Scott
N1VG
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