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ZL3AI > APRDIG 18.01.07 02:01l 315 Lines 10834 Bytes #999 (0) @ WW
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Subj: [APRSSIG] Vol 31 #18, 1/2
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To : APRDIG@WW
Today's Topics:
1. RE: Re: Agw tracker and Agw packet engine ((SV2AGW)George Rossopoulos)
2. APRSDOS and Soundcards (Charles Bland)
3. Re: APRSDOS and Soundcards (Jason Winningham)
4. Re: APRSDOS and Soundcards (Charles Bland)
5. RE: APRSDOS and Soundcards (Robert Bruninga)
6. Re: APRSDOS and Soundcards (Stephen H. Smith)
7. SOundcard and APRSDOS - I Surrender (Charles Bland)
8. Re: SOundcard and APRSDOS - I Surrender (Earl Needham)
9. RE: GPS from Sprint data card (Dave Baxter)
10. RE: Re: Agw tracker and Agw packet engine (Dave Baxter)
11. RE: GPS from Sprint data card (Earl Needham)
12. Re: APRSDOS and Soundcards (Curt, WE7U)
13. RE: GPS from Sprint data card (Scott Miller)
14. RE: GPS from Sprint data card (Frank Keeney)
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Message: 1
Date: Mon, 15 Jan 2007 22:19:26 +0200
From: "\(SV2AGW\)George Rossopoulos" <sv2agw_at_raag.org>
Subject: RE: [aprssig] Re: Agw tracker and Agw packet engine
Hi
Baycom does NOT work on XP or WIN200 unless you have a legacy serial port.
Then you MAY be able to use it with PEPRO.(its not for sure) In brief its
better to use the Soundcard modem which outperforms the Baycom.
In any case use first AGW PAcket Engine (Freeware) for Soundcard. Then
setup AGWTracker use it and if ok then you can register (if you wish).
Trial version of AGWTracker has no timelimit. Its full fuctional but does
not calculate the Password for the APRS server. But you can ask me to send
you a password for APRS server login.
(SV2AGW) George Rossopoulos
sv2agw_at_elcom.gr
www.elcom.gr/sv2agw
+306932465216
George Rossopoulos
Nikanoros 59
54250,Thessaloniki
Greece
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Message: 2
Date: Mon, 15 Jan 2007 16:13:25 -0800
From: "Charles Bland" <BackForty_at_BlandRanch.net>
Subject: [aprssig] APRSDOS and Soundcards
Is there a way to use APRSDOS in a DOS environment using the soundcard as
the interface?
I currently have FLEXNET running on my DOS PC but it would appear that the
FLEXNET package does not provide an interface the DOSAPRS will recognize.
For those that are bound to ask why I'm doing this, I have 5 DOS machines
designed for mobile installation that have sound cards and GPS receivers.
They will be excellent APRS computers. The best news for me would be to not
have to add/buy more hardware (besides a radio) to make them operational in
this mode.
Looking forward to comments.
Chuck Bland - NA6BR
Volcano, CA
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Message: 3
Date: Mon, 15 Jan 2007 18:26:45 -0600
From: Jason Winningham <jdw_at_eng.uah.edu>
Subject: Re: [aprssig] APRSDOS and Soundcards
On Jan 15, 2007, at 6:13 PM, Charles Bland wrote:
>Looking forward to comments.
linux/xastir? I hear someone has it running on an old 486. You didn't
mention what you had in the way of storage/media/networking.
-Jason
kg4wsv
------------------------------
Message: 4
Date: Mon, 15 Jan 2007 16:43:03 -0800
From: "Charles Bland" <BackForty_at_BlandRanch.net>
Subject: Re: [aprssig] APRSDOS and Soundcards
Running under DOS 6.2. I have lots of HD space. I have PCCARD slots for
memory cards to move files on and off the machine. I have not loaded
networking since I am running in a mobile environment.
Chuck
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Message: 5
Date: Mon, 15 Jan 2007 20:18:31 -0500
From: "Robert Bruninga" <bruninga_at_usna.edu>
Subject: RE: [aprssig] APRSDOS and Soundcards
>For those that are bound to ask why I'm doing this, I have 5
>DOS machines designed for mobile installation that have
>sound cards and GPS receivers. They will be excellent APRS
>computers. The best news for me would be to not have to
>add/buy more hardware (besides a radio) to make them
>operational in this mode.
Sorrry, APRSdos does not have hooks to a sound card. Simplest thing I can
think of is to use a D7 HT with it's internal TNC. SO as, you say, all you
have to buy is a "radio"... But it has to have the TNC built in.
Bob
WB4APR
------------------------------
Message: 6
Date: Mon, 15 Jan 2007 18:26:25 -0800
From: "Stephen H. Smith" <wa8lmf2_at_aol.com>
Subject: Re: [aprssig] APRSDOS and Soundcards
bruninga_at_usna.edu wrote:
>Sorrry, APRSdos does not have hooks to a sound card. Simplest
>thing I can think of is to use a D7 HT with it's internal TNC.
>SO as, you say, all you have to buy is a "radio"... But it has
>to have the TNC built in.
>
>Bob
>WB4APR
No APRS or packet application has "hooks to a sound card". They only need
KISS or TCP/IP support. The soundcard softmodems appear to other programs
either as a KISS TNC device on a virtual serial port (MixW or AGW Packet
Engine), or as a TCP/IP network device (AGW Packet Engine).
The fundamental problems with using soundcard softmodems in DOS is:
1) RAM Cram. DOS basically can only use the first MB of RAM no matter
how many GBs of ram are in the machine. It's simply not enough memory for
the main application plus the soundcard hardware drivers plus the soundcard
modem application. [The driver alone for the typical sound card today
would more than fill the ENTIRE DOS memory space!]
2) DOS is not multitasking. Normally only one program at a time can run
in DOS, aside from some minor background pop-up RAM-resident utilties. One
would have to rewrite an application like AGW or MixW to be a monster
device driver, rather than a stand-alone program running alongside DOSaprs.
Recall the old DOS games. Each one had it's own internal sound and video
drivers. If your particular sound and video hardware wasn't supported by a
particular game, it would never work with it.
--
Stephen H. Smith wa8lmf (at) aol.com
EchoLink Node: 14400 [Think bottom of the 2M band]
Home Page: http://wa8lmf.com --OR-- http://wa8lmf.net
NEW! TNC Test CD
http://wa8lmf.net/TNCtest
JavAPRS Filter Port 14580 Guide
http://wa8lmf.net/aprs/JAVaprsFilters.htm
"APRS 101" Explanation of APRS Path Selection & Digipeating
http://wa8lmf.net/DigiPaths
Updated "Rev G" APRS http://wa8lmf.net/aprs
Symbols Set for UI-View,
UIpoint and APRSplus:
------------------------------
Message: 7
Date: Mon, 15 Jan 2007 21:18:27 -0800
From: "Charles Bland" <BackForty_at_BlandRanch.net>
Subject: [aprssig] SOundcard and APRSDOS - I Surrender
OK, so have dug-out my TNC and the firmware is way old.
What does APRSDOS want to see in a TNC?
Standard firmware?
UIDIGI firmware?
WA8DED?
KISS?
I want to make sure I buy the right thing.
Thanks for your patience, folks.
Chuck
------------------------------
Message: 8
Date: Mon, 15 Jan 2007 22:28:17 -0700
From: Earl Needham <needhame1_at_plateautel.net>
Subject: Re: [aprssig] SOundcard and APRSDOS - I Surrender
At 10:18 PM 1/15/2007, Charles Bland wrote:
>What does APRSDOS want to see in a TNC?
Just standard firmware -- if it will do CMD: mode and CONVerse mode you
should be all set. Oh, you probably want it new enough that you can set a
digi path with it, but I think most all of it will do that much.
7 3
Earl
KD5XB
Clovis, New Mexico DM84jk
http://groups.yahoo.com/group/cw_bugs
"Just say NO to DHL"
------------------------------
Message: 9
Date: Tue, 16 Jan 2007 09:34:41 -0000
From: "Dave Baxter" <dave_at_emv.co.uk>
Subject: RE: [aprssig] GPS from Sprint data card
>It sure is nice having an internet connection just about anywhere, though!
Yes, it's good to have.
Count your lucky stars though, I believe you get that service for free in
the US, here in the UK we have to pay dearly for that.
If I use it, I am charged £2 a meg at the moment (about $3) If you think
that's steep, it used to be £7 a meg! But I do get a 3G connection if
it's available, & you could do VoIP over that (384kbps) but it's cheaper to
use the phone!... There is no charge for the time connected, only the data
transferred, the sum of data bytes sent and received.
WiFi hotspots (caffe's, service stations etc) are not that much cheaper for
the occasional user sadly.
Cheers..
Dave G0WBX.
------------------------------
Message: 10
Date: Tue, 16 Jan 2007 10:03:50 -0000
From: "Dave Baxter" <dave_at_emv.co.uk>
Subject: RE: [aprssig] Re: Agw tracker and Agw packet engine
Some XP systems will let you use DOS app's and get to what it provides you
in the way of ports, but my guess is they are not updated to SP2 and later
etc.
Also, it depends a great deal, how the system policies are set, as well as
how the application uses the ports. If it's direct fiddling of the
hardware, absolutely no way! All NT based systems will spit feathers at
you and prevent you from doing that. Unless you have a third party I/O
reservation driver, such as SmallPort and the like installed.
Via "standard" BIOS calls, maybe. Via DOS system calls would be the best
bet, but you are still several layers away from the port itself, and the
access timing will be all screwey for the normal stuff, let alone waggling
handshake lines!...
Windows 2000 likewise. We had a situation here, with that. Prior to
Service Pack 4, we used to run all sorts of tools and utilities to mess
with our products via RS232 and LPT ports and the command line interface.
After SP4 (but immediately, strangely) we gradualy lost the ability to use
COM and LPT ports in the "cmd" DOS like environment.
Personally, I have never had LPT or COM port access on this XP laptop from
the "Cmd" screen. It has a real LPT port, but only USB for anything else.
It's also fully "up to date" re updates etc, and the background policies
are set and managed from our office server. That has more control of this
machines settings, than I do, and I'm sitting in front of it!...
As earlier, there are several third party I/O port "reservation" drivers
about. You tell them what ports you want to use, and they make them their
own as far as windows is concernd, you then call them for as real time
access as you will get. But, again, you are still several software layers
away from the port itself.
Sometimes (rare) you can use those drivers to "own" a port, and fiddle with
it directly, but you have to write the code to do that, it will not do it
for existing DOS programs, some Win9x yes, but not DOS..
Also, re soundcard decoders. Not all "Soundcards" are equal either. Real
hardware with the appropriate drivers (Soundblaster etc) will always work
better than the many software driven cards, where the hardware is just
basic (if fast) A/D, and all the codec functionality is in the driver, not
in dedicated DSP like many of the older, and newer "high end" cards.
Has to be said, that for many, the default software driven soundcard, does
seem to work remarkably well, nearly all of the time. Any dificulties..
USB based devices are cheap now, and provide good results too.
Enjoy.
Dave G0WBX.
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