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ZL3AI > APRDIG 04.05.03 19:04l 269 Lines 9693 Bytes #999 (0) @ WW
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Read: GUEST
Subj: TAPR Digest, Apr 25, 2/3
Path: DB0FHN<DB0ZWI<DB0HDF<DB0ERF<DB0FBB<DB0GOS<ON0AR<ON0AR<VK3TE<ZL2BAU<
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From: ZL3AI@ZL3VML.#80.NZL.OC
To : APRDIG@WW
Subject: Re: Lesson needs to be learned in VA
From: Roger Grady <k9opo@comteck.com>
Date: Fri, 25 Apr 2003 10:52:30 -0500
X-Message-Number: 13
At 09:15 AM 4/25/03, Jason Rausch wrote:
>Which digipeater is it? There has been statewide attempts to avoid things
>like this. I live in the western half of the state so I MIGHT know who it
>is.
Responded to by private email to avoid public embarrassment of digi owner.
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Subject: Re: Another thing I'd like to see...
From: "Jeffrey P. Nast" <jpnast@lca.duluth.mn.us>
Date: Fri, 25 Apr 2003 11:45:28 -0500
X-Message-Number: 14
Or... a wide eyed "deer in the headlights"?
-Jeff
KC0MKS
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Subject: Re: Another thing I'd like to see...
From: "Curt Mills, WE7U" <hacker@tc.fluke.com>
Date: Fri, 25 Apr 2003 10:02:11 -0700 (PDT)
X-Message-Number: 15
On Fri, 25 Apr 2003, Jeffrey P. Nast wrote:
>Or... a wide eyed "deer in the headlights"?
I need the dead possum symbol: Upside down possum, legs in the air, with
crosses over the eyes. If I had that symbol today I'd have to spend a
bunch of time placing objects all over my commute route.
Oh yea, skunk too.
These could be implemented as APRS Items instead of objects. Time of death
ain't real important (items don't have timestamps).
--
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: Re: Another thing I'd like to see...
From: WA8LMF2@aol.com
Date: Fri, 25 Apr 2003 13:03:45 EDT
X-Message-Number: 16
In a message dated 4/25/2003 8:52:31 AM Pacific Daylight Time,
Scott.Miller@vandenberg.af.mil writes:
>Roadkill... now there's a symbol I forgot to put in the set. =] Maybe
>break it down into dead armadillo, flat cat, dog with a tire tread...
How about the IrfanView icon (splatted cat with a tire tread over it).... ?
[ IrfanView -- the definitive freeware graphics viewer/format
converter/thumbnailer/slideshow utility is an absolutely free download at:
http://www.irfanview.com .]
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Subject: Running Multiple COM ports from a one port Laptop
From: "Christensen, Eric Harlan" <CHRISTENSENE@MAIL.ECU.EDU>
Date: Fri, 25 Apr 2003 13:18:59 -0400
X-Message-Number: 17
Okay, this is what I want to do. I need to be able to split my COM port
into many COM ports so I can hook up modems (TNCs) to my laptop. Any ideas?
Oh, I would run AGWPE to control the different modems (I think...).
Thanks,
Eric KF4OTN
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Subject: Re: [ "Curt Mills, WE7U" ] Re: Another thing I'd like to see...
From: <BobDonnell@arkalmus.com>
Date: Fri, 25 Apr 2003 10:42:11 -0700
X-Message-Number: 18
Then you need the whole AX.25 protocol stack, and APRS software isn't
designed to support connected-mode operations. Also, a lot of the
simple tracker plans don't make provision for receiving packets. Heck,
some don't make provision for checking to see if the channel's busy. In
the case of high mountain SAR work, it may actually be necessary to have
the trackers not aware of channel loading, because when the receiver
"can see for miles", the channel may never become unoccupied. Making
use of existing infrastructure by staying on 144.39 has both plusses and
minuses in that environment.
73, Bob, KD7NM
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Subject: RE: Running Multiple COM ports from a one port Laptop
From: <BobDonnell@arkalmus.com>
Date: Fri, 25 Apr 2003 10:57:12 -0700
X-Message-Number: 19
Your best choice is to use either Multidrop KISS or a 6PACK-equipped
TNC. Both of these techniques support multiple TNC's on a single serial
port, each using a different, specially wired RS-232 cable.
6PACK uses a token passing protocol, so all the TNC's are electrically
connected in a ring. This prevents collisions on the serial data lines,
but requires that all the TNC locations in the cable you build to either
have a TNC or a shorting plug installed. Only a few of the TNC designs
have 6PACK firmware available.
The base level Multidrop KISS uses a star configuration, does not
inherently protect against serial data collisions, unless flow control
is implemented, does not detect if two TNCs sent data to the PC at the
same time. It uses a diode matrix to prevent electrical damage to the
TNC's RS-232 line transmitter chips. There are extensions to multidrop
KISS that support a polling scheme, and support error checking
information on the RS-232 data transfer. Each TNC is assigned a unique
address, zero to fifteen. Not all TNCs have to be present, although if
using polling mode with poorly written software, if that software tries
to talk to a KISS address for a TNC that's not present, it could get
confused. Most TNCs support multidrop KISS to some level.
Alternatively, if your laptop has USB support (or you get a PCMCIA USB
card) and the software you want to use can support USB serial ports, you
can add additional discrete ports that way.
Hope that helps!
73, Bob, KD7NM
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Subject: Re: Another thing I'd like to see...
From: "Spider" <spider@rivcom.net>
Date: Fri, 25 Apr 2003 11:32:00 -0700
X-Message-Number: 20
----- Original Message -----
From: "Miller Scott Contr 30SCS/FTI" <Scott.Miller@vandenberg.af.mil>
To: "TAPR APRS Special Interest Group" <aprssig@lists.tapr.org>
Sent: Friday, April 25, 2003 8:49 AM
Subject: [aprssig] Re: Another thing I'd like to see...
>Roadkill... now there's a symbol I forgot to put in the set. =] Maybe
>break it down into dead armadillo, flat cat, dog with a tire tread...
Don't forget "Road Gators".
Jim, WA6OFT
?
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Subject: Mini ITX
From: "Daniel H. Brown" <brown@brauhausdc.org>
Date: Fri, 25 Apr 2003 15:48:02 -0400 (EDT)
X-Message-Number: 21
Has this been mentioned here previously?
http://www.mini-itx.com/
--
Dan Brown
brown@brauhausdc.org
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Subject: RE: Mini ITX
From: Miller Scott Contr 30SCS/FTI <Scott.Miller@vandenberg.af.mil>
Date: Fri, 25 Apr 2003 19:57:02 -0000
X-Message-Number: 22
This is exactly why we need PCI and USB TNCs or modems... any one of these
would make a sweet digi/network appliance.
Gotta love the Colecovision one...
Scott
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Subject: RE: Mini ITX
<LYR26300-130070-2003.04.25-15.48.30--brown#brauhausdc.org@lists.tapr.org>
From: "Daniel H. Brown" <brown@brauhausdc.org>
Date: Fri, 25 Apr 2003 16:06:30 -0400 (EDT)
X-Message-Number: 23
On Fri, 25 Apr 2003, Miller Scott Contr 30SCS/FTI wrote:
>This is exactly why we need PCI and USB TNCs or modems... any one of these
>would make a sweet digi/network appliance.
Actually, and I didn't notice this before my previous posting -- these
things have sound, 16550 serial, and parallel ports on board. SO, No TNC
needed.
N8YSZ.
--
Dan Brown
brown@brauhausdc.org
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Subject: RE: Mini ITX
<LYR26300-130070-2003.04.25-15.48.30-- brown#brauhausdc.org@lists.tapr.org>
From: Miller Scott Contr 30SCS/FTI <Scott.Miller@vandenberg.af.mil>
Date: Fri, 25 Apr 2003 20:16:51 -0000
X-Message-Number: 24
Soundcard modems still feel a bit kludgy to me. I'd rather have a PCI card
with four 5-pin DINs for direct connection to radios. I have to admit that
my Linux box with soundmodem (rx only) has been solid for a week or more
anyway, since I swiped the TNC to experiment with.
Scott
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Subject: PCSAT2 on the air
From: Bob Bruninga <bruninga@usna.edu>
Date: Fri, 25 Apr 2003 16:52:32 -0400 (EDT)
X-Message-Number: 25
PCSAT2 is on the air for its 200 hour pre-flight burn in test. Now
scheduled for flight on ISS in September, it should be a fun payload.
We have it transmitting 4 bulletins and a telemetry packet every 10
seconds on both 1200 and 9600 baud on both downlinks, trying to at least
keep the transmitters at a 50% duty cycle without smoking them.
One of those packets every 30 minutes is being routed to the national APRS
frequency of 144.39 where it is being picked up by the woldwide APRS
system and picked up from there onto the pcsat.aprs.org web page. We want
to see if it runs all weekend witout an anomoly. It is using the callsign
of W3ADO-2.
One mode for PCSAT2 is a full duplex FM voice repeater for experiments
with ISS (usually just to help with crew communications full duplex so we
can hear the schools). Here is a thought... when not being used for that
purpose....
We could let "schools" sign up for each pass. THey then get to be voice
"net control" and they operate the FM transmponder as a directed net.
Such a plan might cut down on the frustration level and improve the
usefulness of such FM transponders. At least it would be something
different form the free-for-alls we have sometimes now...
Just thinking...
de WB4APR@amsat.org, Bob
PCsat2 WEB page http://www.ew.usna.edu/~bruninga/pcsat2.html
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