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ZL3AI > APRDIG 25.04.03 09:13l 224 Lines 9303 Bytes #999 (0) @ WW
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From: ZL3AI@ZL3VML.#80.NZL.OC
To : APRDIG@WW
Subject: RE: a few basic questions....
From: "Daron J. Wilson" <daron@wilson.org>
Date: Mon, 21 Apr 2003 22:33:37 -0700
X-Message-Number: 5
>That seems like a non sequitur, but what ever your point, I agree that
>most hams only use 5% or less of the capabilities of APRS and then they
>only use those critical items less than 1% of the time. But APRS can do
>it if people do something with radio instead of just watch stagnant pretty
>maps..
OK, let's say I have a radio in the car, I give in and put one on at
home that broadcasts weather data all the time, and I have a portable
when I'm out of the car walking around. What more capabilities should I
be taking advantage of? It seems to me that there is certainly a
practical limit, at some point, if we all take advantage of 50% of the
ability, the channel loading would increase substantially and thus at
some point the throughput would be decreasing. If I'm using only 5% of
the capabilities, I really don't know how I should be using another 95%.
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Subject: Re: Been reading the posts and have a question
From: Robbie <mwrobertson@attbi.com>
Date: Tue, 22 Apr 2003 00:40:16 -0500
X-Message-Number: 6
Hi,
The TinyTrak has "Smart Beaconing" capabilities and maybe some other
beasts out there do also.
I personally use the PM function on my Kenwood D700, PM1 gives normal
tracking and PM5 is set for "Parked" parameters with dimmed out display.
Robbie, wa9inf
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Subject: Re: WinAPRS & UTM Coordinates system
From: "Curt Mills, WE7U" <archer@eskimo.com>
Date: Mon, 21 Apr 2003 23:09:00 -0700 (PDT)
X-Message-Number: 7
On Mon, 21 Apr 2003, B. Hildebrand wrote:
>FYI: APRS+SA allows position entry in UTM. And while the display of position
>data is in Lat/Long, is you hover the cursor over a position report, the
>popup tooltip window will show the position in Lat/Long Decimal Degrees, in
>Degrees/Decimal Minutes, UTM and in Maidenhead Grid. Brent KH2Z
Xastir also has support for UTM. It can display it all the time, or
convert between the various representations using the Coordinate
Calculator. It also supports contiguous topo maps using USGS geoTIFF
topo map files. A SAR guy is on the development team. ;-)
Xastir now runs on Windows as well as many Unix and Unix-like
operating systems. It also now supports AGWPE. Xastir has always
been and will always be free.
http://www.xastir.org
Note: The Windows install is not for the faint-of-heart, but it
_does_ run under Windows, and runs well.
Curt, WE7U. archer@eskimo.com
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: APRS in a mobile-IP enviroment
From: "Darryl Smith" <Darryl@radio-active.net.au>
Date: Tue, 22 Apr 2003 20:14:14 +1000
X-Message-Number: 8
People
I have just finished the first draft on a paper on APRS in a mobile IP
enviroment - such as when operating roaming 802.11
If you are interested please have a look at
http://www.radio-active.net.au/web/gpsaprs/APRS80211.pdf and let me know
your comments
Darryl
---------
Darryl Smith, VK2TDS POBox 169 Ingleburn NSW 2565 Australia
Mobile Number 0412 929 634 [+61 4 12 929 634 International]
Darryl@radio-active.net.au | www.radio-active.net.au
----------------------------------------------------------------------
Subject: RE: a few basic questions....
From: "Ev Tupis (W2EV)" <w2ev@arrl.net>
Date: Tue, 22 Apr 2003 06:23:13 -0400
X-Message-Number: 9
>OK, let's say I have a radio in the car, I give in and put one on at
>home that broadcasts weather data all the time, and I have a portable
>when I'm out of the car walking around. What more capabilities should I
>be taking advantage of? It seems to me that there is certainly a
>practical limit, at some point, if we all take advantage of 50% of the
>ability, the channel loading would increase substantially and thus at
>some point the throughput would be decreasing. If I'm using only 5% of
>the capabilities, I really don't know how I should be using another 95%.
Daron,
It all depends on how one defines "5%" and "95%" of the "capabilities" of
APRS. Many of the capabilities require no more channel loading...just more
mining of the data that is already present.
Other capabilities actually require LESS channel loading in order to be
effective (such as meteor scatter or DX propagation work). This is the
entire reason that the BEACONet system was established (some call it APRS
technology with a different mission, on a different frequency).
As with anything...one is best served by identifying what aspect of APRS
operatoin they are interested in, then asking questions until you find the
best way to use APRS to exploit that interest.
Ev, W2EV
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Subject: RE: a few basic questions....
From: Bob Bruninga <bruninga@usna.edu>
Date: Tue, 22 Apr 2003 08:58:54 -0400 (EDT)
X-Message-Number: 10
On Mon, 21 Apr 2003, Daron J. Wilson wrote:
>>most hams only use 5% or less of the capabilities of APRS and then
>>they only use those critical items less than 1% of the time....
>
>OK, let's say I have a radio in the car, one at home that broadcasts
>weather data all the time, and a portable when I'm out of the car
>walking around. What more capabilities should I be taking advantage of?
The point I was trying to make was not just having radios on the air, its
finding ways to put the capability to good use such as in support of your
local EOC, Ham Club, Kids Club, Scouting events, Weather spotting, Search
and rescue, Direction finding every obnocious signal, Putting traffic
accidents and traffic jams on the map, March of dimes, parades, biking,
hiking, boating, cruising, flying, Ballooning, Radio remote control,
Science projects, etc..
>It seems to me that there is certainly a
>practical limit, at some point, if we all take advantage of 50% of the
>ability, the channel loading would increase substantially and thus at
>some point the throughput would be decreasing. If I'm using only 5% of
>the capabilities, I really don't know how I should be using another 95%.
Its not about just being on the air, its about putting useful information
on the air and using the equipment on something that has benefit to others
than just the individual transmitting it. Of course, 95% of the time,
none of these events are going on. Thats fine, and thats why 95% of the
time we just watch APRS do nothing... Its practice and experience for
when we do do something.
I hope that every operator knows how to put an object on the map, how to
give it a course and speed, and how to put a DF bearing line on the map or
to draw an AREA boundary on the map to indicate an area of interest. Or
how to send a DF omni-directional report that others can use to display
signal strength contours to find a jammer, etc.. Or how to use his own
mobile radio and S meter and the DF Fade Circle technique to home in on a
signal... (See my DF.TXT or http://www.ew.usna.edu/~bruninga/dfing.html)
How to request the nearest hospital, or the nearest HAM store, or the
nearest EOC, or how to find out the nearest ECHOLINK node and frequency or
how to query for a list of satellite passes in the next 80 minutes,
etc...
Things like that...
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: WinAPRS & UTM Coordinates system
From: "Spider" <spider@rivcom.net>
Date: Tue, 22 Apr 2003 06:12:44 -0700
X-Message-Number: 11
>Xastir also has support for UTM. It can display it all the time, or
>convert between the various representations using the Coordinate
>Calculator. It also supports contiguous topo maps using USGS geoTIFF
>topo map files. A SAR guy is on the development team. ;-)
Ya know if those SAR guys (being one myself) were provided the right tools
for reading lat/long and then take the time to learn how to use them and
practice, this would not be a real issue. However, I like the idea of the
choices. I am seeing most of the commerical mapping programs give you the
choice of whatever you want! Makes sense to me!
Jim
----------------------------------------------------------------------
Subject: RE: a few basic questions....
From: "Spider" <spider@rivcom.net>
Date: Tue, 22 Apr 2003 06:29:16 -0700
X-Message-Number: 12
----- Original Message -----
From: "Bob Bruninga" <bruninga@usna.edu>
To: "TAPR APRS Special Interest Group" <aprssig@lists.tapr.org>
Cc: "'TAPR APRS Special Interest Group'" <aprssig@lists.tapr.org>
Sent: Tuesday, April 22, 2003 5:58 AM
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