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ZL3AI > APRDIG 24.07.03 12:14l 282 Lines 9895 Bytes #999 (0) @ WW
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To : APRDIG@WW
TAPR APRS Special Interest Group Digest for Monday, July 21, 2003.
1. RE: accurate reporting
2. RAgeo, a low cost GEO bird
3. RE: RAgeo, a low cost GEO bird
4. ADMIN: attbi/comcast subscribers
5. APRS For the masses
6. WinAPRS
7. Re: Connecting thermistor to KPC-3+
8. Re: WinAPRS
9. Davis Vantage Pro
10. Re: How to capture APRN Live KEN-CAM images.
<LYR30523-140845-2003.07.20-23.52.12--kb2scs#optonline.net@lists.tapr.org>
11. HF data question
12. Re: WinAPRS
13. RF Traffic monitor software
14. Re: APRS IP address
15. Re: Data Comms
16. Re: APRS IP address
17. Re: Bargain alert
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Subject: RE: accurate reporting
From: "Scott Miller" <scott@home.miller.org>
Date: Sun, 20 Jul 2003 21:35:56 -0700
X-Message-Number: 1
Sounds like a great idea to me. I'm not sure if an audio subcarrier is the
way to go, but I don't know much about C-band services. I've been meaning
to pick up a dish, though - people are actually paying to have them hauled
off these days.
Does anyone know how fidonet managed its satellite distribution?
http://www.cybertalk.com/051495.htm
Scott
N1VG
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Subject: RAgeo, a low cost GEO bird
From: Bob Bruninga <bruninga@usna.edu>
Date: Mon, 21 Jul 2003 12:09:19 -0400 (EDT)
X-Message-Number: 2
On Sat, 19 Jul 2003, Wes Johnston wrote:
>I hear the clark belt is getting crowded.... can we put a geostationary
>satellite, say 30 degrees north of the clark belt? <grin>
I had a phone call last week asking if we had anything for a geo ride?
I said, no, but lemme think about it. Here is what I came up with as a
low cost GEO transponder that will not have to have any propulsion or
attitude control. It uses differential radiometric solar pressure to
align to the sun. Then we switch antennas to support users:
http://www.ew.usna.edu/~bruninga/RAgeo.html
de WB4APR@amsat.org, Bob
PCsat WEB page http://www.ew.usna.edu/~bruninga/pcsat.html
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Subject: RE: RAgeo, a low cost GEO bird
From: "Brian Webster" <bwebster@wirelessmapping.com>
Date: Mon, 21 Jul 2003 13:22:27 -0400
X-Message-Number: 3
Bob,
Just thinking off the cuff at this idea, would it be possible to also make
some sort of passive microwave repeater. I haven't looked at any of these
in a long time and don't know what the power requirements are to make them
anything usable but the idea of a fixed bird is awesome. Having a passive
repeater woud only take up space and weight on the bird if all else could
be made possible. I know they use these on remote mountaintops using back
to back dishes and waveguide. Seems like the 2.4 ghz band is getting more
activity and could be a good candidate for something like this. I'm just
spouting off ideas here, are you serious about a possible ride and parking
space in GEO orbit? That would be a huge asset to the ham community, if we
could make this work maybe we could get more parking spots in less than
desireable positions for commercial use but good for hams to make
inter-continetal QSO's. If you can get a ride how soon is it going and
would you have enough development time to make the deadline.
Thank you,
Brian Webster N2KGC (GSEC USNR/R)
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Subject: ADMIN: attbi/comcast subscribers
From: "stanzepa@earthlink.net" <stanzepa@earthlink.net>
Date: Mon, 21 Jul 2003 13:40:05 -0400
X-Message-Number: 4
I received a message from a SIG subscriber today that was inadvertently
deleted, but I did read it before I erred. The gist of the message was that
comcast was forcing new e-mail addresses on its attbi subscribers and could
I change all the the affected addresses en masse. Sorry, I wish I could,
but the SIG software will not allow me to do that, so all of you who are
affected will have to contact me individually.
73,
Stan, WA1LOU, SIG administrator
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Subject: APRS For the masses
From: "Steve Dimse" <k4hg@tapr.org>
Date: Mon, 21 Jul 2003 19:05:10 +0000
X-Message-Number: 5
Steve Wozniac, co-founder of Apple, is throwing his hat into the personal
tracking arena:
http://www.nytimes.com/2003/07/21/technology/21ZEUS.html
Steve K4HG
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Subject: WinAPRS
From: Mike Elliott <w8krr@att.net>
Date: Mon, 21 Jul 2003 15:36:36 -0400
X-Message-Number: 6
Alright, you gurus. I was running aprsdos, but now I must run WINAPRS on
my machine with Windows ME. What do I need to download to make it work?
Sorry to be so dumb.
Mike
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Subject: Re: Connecting thermistor to KPC-3+
From: "Earl S. Garber" <n3eg@teleport.com>
Date: Mon, 21 Jul 2003 14:40:43
X-Message-Number: 7
Here's how I did it: http://home.teleport.com/~n3eg/kpc3telem.html
Here are the results: http://home.teleport.com/~n3eg/signalpeak.htm
On 07/20/03, ""Rochte, Robert" <rrochte@gpacademy.org>" wrote:
>This might seem a particularly elementary question to most here, but I need
>some help.... How exactly do I connect a thermistor to a KPC-3+ analog input
>line? Is it as simple as taking +5v from an external voltage regulator and
>running it through the thermistor and to the input? Or is there more
>involved?
>
>Thanks much.
>
>73,
>Robert KC8UCH
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Subject: Re: WinAPRS
From: "Curt Mills, WE7U" <hacker@tc.fluke.com>
Date: Mon, 21 Jul 2003 13:40:43 -0700 (PDT)
X-Message-Number: 8
On Mon, 21 Jul 2003, Mike Elliott wrote:
>Alright, you gurus. I was running aprsdos, but now I must run WINAPRS
>on my machine with
>Windows ME. What do I need to download to make it work?
You've got more choices than that:
http://www.eskimo.com/~archer/aprs_capabilities.html
--
Curt Mills, WE7U hacker_NO_SPAM_@tc.fluke.com
Senior Methods Engineer/SysAdmin
"Lotto: A tax on people who are bad at math!"
"Windows: Microsoft's tax on computer illiterates!" -- WE7U
"The world DOES revolve around me: I picked the coordinate system!"
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Subject: Davis Vantage Pro
From: Dennis Hudson <n2lbt@n2lbt.com>
Date: Mon, 21 Jul 2003 17:42:31 -0400
X-Message-Number: 9
I'm trying to get a friend on APRS with a weather station called Davis
Vantage Pro. I can't seem to make WinAPRS 2.7.2 transmit the weather,
although it appears to read correctly in WinAPRS' weather window. Is
there anyone running one of these Davis Vantage Pro models interfaced
with WinAPRS?
--
Dennis, N2LBT
Sysop aprsdALY IGate
http://www.n2lbt.com
n2lbt@n2lbt.com
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Subject: Re: How to capture APRN Live KEN-CAM images.
<LYR30523-140845-2003.07.20-23.52.12--kb2scs#optonline.net@lists.tapr.org>
From: kb2scs@optonline.net
Date: Mon, 21 Jul 2003 18:12:02 -0400
X-Message-Number: 10
Hi
I have already written just the software you are looking for.
The name of the software is APRN. APRN stands for Automatic Picture
Relay Network.
APRN was and is an idea of Bob Bruninga.
You can download the APRN software at the following URL.
http://www.qsl.net/kb2scs/
Enjoy.
On 21 Jul 2003 at 9:21, Lab Services Group wrote:
>Subject: How to capture APRN Live KEN-CAM images and display in a PC
>
>I will like to do the following.
>a) Use Kenwood APRS walkie-talkie(TH D7E with VC-H1) that makes it possible
>to send a single APRS position/status/title packet to identify the KENCAM
>image.
>b) Capture the Image in a PC run any of the SSTVdecoder softwares. It
>auto-saves the Image and captures the APRS TITLE packet via a TNC on the
>serial port. This info is saved to your WEB server and the APRS HTML page
>is refreshed.
>
>PL. SUGGEST how to do this.( I don' t know it and am a newbie)
>
>(RKJha)
>Principal Research Manager(LSG), RDCIS, Steel Authority of India Ltd
>Ranchi-834002, INDIA,www.sail.co.in, www.rdcis-sail.com
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Subject: HF data question
From: "Scott Miller" <scott@opentrac.org>
Date: Mon, 21 Jul 2003 15:39:38 -0700
X-Message-Number: 11
My weekend trip to Sequoia National Park went pretty well despite the
thunderstorms, and I was able to get better APRS coverage (courtesy of
WA6YLB-7) than I'd expected, though none of the position reports from my
backpack tracker made it in.
The lack of connectivity of any sort deep in the park got me thinking about
HF data modes. This isn't really specifically an APRS thing, but I was
thinking it'd be cool to have a standalone HF QRP transceiver running a
modulation format like PSK31 but block-oriented with forward error
correction. Seems to me this would be an easier place to start
experimenting with a multi-channel protocol than on satellites.
For the RX side I envision a ruggedized box with a longwire antenna suitable
for throwing in a tree.. it'd listen on a single, crystal-controlled
frequency and decode and save any messages bound for your address, to be
displayed on an integrated LCD. Essentially a low-speed HF pager, in other
words.
Uplinks would be more difficult to manage because of the huge collision
domain area, but with a limited number of core nodes and a good channel
management protocol I think you could manage it.
Does any such thing exist now? I've only seen PSK31 run on a PC, and I
can't recall any HF rig with built-in data capability that could be
considered portable. How much DSP horsepower is it going to take to decode
the multichannel signal?
Scott
N1VG
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