| |
ZL3AI > APRDIG 19.02.04 13:50l 278 Lines 9726 Bytes #999 (0) @ WW
BID : 2864-ZL3AI
Read: GUEST
Subj: TAPR Digest, Feb 17, 3/7
Path: DB0FHN<DB0THA<DB0ERF<DB0FBB<DB0GOS<ON0AR<ON0AR<7M3TJZ<JK1ZRW<WB0TAX<
VK7AX<ZL2BAU<ZL3VML
Sent: 040219/1117Z @:ZL3VML.#80.NZL.OC #:19400 [Chch-NZ] FBB7.00i $:2864-ZL3AI
From: ZL3AI@ZL3VML.#80.NZL.OC
To : APRDIG@WW
Subject: RE: Mythbusters Cell phones Vs Gas Stations
From: Dale Heatherington <dale@wa4dsy.net>
Date: Tue, 17 Feb 2004 10:39:07 -0500
X-Message-Number: 14
Nope.
It's static electricty that's the problem. Getting in and out of your car
during fueling can put a static charge on your body. When you touch the
filler nozzle - Zap, kaboom!
Lesson: Touch your car before removing the gas cap. Stay out of the car
while fueling.
On Monday 16 February 2004 9:33 pm, you wrote:
>I cant wait, will a gas station explode if you use your phone?
>
>David VanHorn <dvanhorn@cedar.net> wrote:
At 08:39 PM 2/16/2004 -0500, Rich Garcia wrote:
>>This is not a new episode, I think I saw it before the end of the year and
>>it was neat.
>
>It's new to me!
>
>I'm also following Penn and Teller's "Bullshit" on Showtime.
>VERY entertaining.
----------------------------------------------------------------------
Subject: Re: A LITTLE EXCESSIVE PATH, MAYBE?
From: Steve Dimse <k4hg@tapr.org>
Date: Tue, 17 Feb 2004 10:40:16 -0500
X-Message-Number: 15
On 2/17/04 at 7:23 AM David Dobbins <ddobbinswa@yahoo.com> sent:
>I regularly see some outrageous paths in use overseas, and wonder why in
>the hell some of these aren't blocked from the servers until they cut
>back to something reasonable. This is about the worst I've seen.
Because on the servers it does no harm, and these paths are the norm over
there, either it doesn't cause problems or they don't care.
It is not the US's job to force what works for us on others ;-)
Steve K4HG
----------------------------------------------------------------------
Subject: Re: A LITTLE EXCESSIVE PATH, MAYBE?
From: db2fm <db2fm@jfsattv.de>
Date: Tue, 17 Feb 2004 16:48:19 +0100
X-Message-Number: 16
That's why I hope that soon we will have functionalities in
digipeater-software that cuts pathes to reasonable ones. When I tried to
convince people to use short pathes (with RELAY,WIDE I can hit the next
IGATE nearly everywhere in southern Germany), they don't even discuss about
it. It's visible mainly in Suisse (HBxyyy), Italy (Ixyzzz) and Spain
(EAxyyy) and also in parts of Germany (one Sysop had WIDE7-7 as the
proposed path on his website and didn't want to change it, when asked).
So we need intelligent Firmware (UI-Digi or DigiNed), that shortens any
path so it will be as short as needed to hit the next IGATE.
One thing actually in discussion in Germany is to use the very good
packet-Redio network that is established here to get to the APRS-IS via
TCP/IP. Use the PR-Net instead of the internet, which some hams don't
accept as amateur radio.
73 de Juergen DB2FM
--
DB2FM
Juergen Frank
mailto: db2fm@amsat.org
mailto: db2fm@darc.de
mailto: db2fm@jfsattv.de
ICQ: 144135020
AFU-PR: DB2FM@DB0LJ.#RPL.DEU.EU
----------------------------------------------------------------------
Subject: RE: Recovery of KC8UCH-11 APRS Balloon?
From: "Rochte, Robert" <rrochte@gpacademy.org>
Date: Tue, 17 Feb 2004 10:44:26 -0500
X-Message-Number: 17
It seems that no one has yet been able to make it out to the landing
site... Anyone in the area who would care to try, please feel free! It's
likely on the side of a small hill, just 1/4 mile or so off the road. Check
the map links on Findu for more details.
We will pay for shipping of the payload box back here and also offer a
modest (let me stress: modest!) reward. You'll also get your name (and
picture, if you photograph the recovery) on our updated web page when it is
finally published. Ah, fame! What more motivation could anyone want??! :)
So what exactly are you looking for? Here's a picture of this tetroon
shortly after launch:
http://mail.gpacademy.org/~rochter/sd4.jpg
Any help much appreciated!
73,
Robert
KC8UCH
--
Robert Rochte
Director of Information Technology
The Grosse Pointe Academy
171 Lake Shore Road
Grosse Pointe Farms, MI 48236
Tel. +1 313-886-1221 x155
FAX +1 313-886-1418
www.gpacademy.org
----------------------------------------------------------------------
Subject: Re: APRS enabled balloon on 144.39 over Colorado
From: Robbie WA9INF <mwrobertson@comcast.net>
Date: Tue, 17 Feb 2004 09:59:45 -0600
X-Message-Number: 18
Bob,
Need to think about it a little... Generally the balloon is gonna fall in
no-mans land... How can anyone assure that it will land close enough to a
"WIDE" so that it will be heard? Are you or anyone going to feel confident
of being rescued in the woods using WIDE only in your Kenwood D-7 and 5
watts? <G>
Robbie
----------------------------------------------------------------------
Subject: RE: Recovery of KC8UCH-11 APRS Balloon?
From: "Tyler Allison" <tyler@allisonhouse.com>
Date: Tue, 17 Feb 2004 11:02:42 -0500 (EST)
X-Message-Number: 19
>It seems that no one has yet been able to make it out to the landing site...
>Anyone in the area who would care to try, please feel free! It's likely on
>the side of a small hill, just 1/4 mile or so off the road. Check the map
>links on Findu for more details.
>
>We will pay for shipping of the payload box back here and also offer a
>modest (let me stress: modest!) reward. You'll also get your name (and
>picture, if you photograph the recovery) on our updated web page when it is
>finally published. Ah, fame! What more motivation could anyone want??! :)
Send one down to the Cincinnati area and I'll pick it up for you ;)
-Tyler
----------------------------------------------------------------------
Subject: Re: APRS enabled balloon on 144.39 over Colorado
From: "Scott Miller" <scott@opentrac.org>
Date: Tue, 17 Feb 2004 08:21:58 -0800
X-Message-Number: 20
I assume direct is preferred for the rest of the flight?
Anyone got an idea for a simple, reliable algorithm a tracker could use to
decide when to switch from direct to wide mode? I suppose the easy way to
do it would be to add an altitude parameter to the configuration... anything
above that altitude would skip the path completely. Too bad the GPS can't
provide height-above-ground...
For long-range flights like yesterday's, is the IGate coverage going to be
good enough? The N6CP-11 tracker the Cal Poly group flew recently was heard
direct by my IGate and probably by KF6HJO at the same time, but I don't know
why IGate density in other places is like.
Scott
N1VG
----- Original Message -----
From: "Robert Bruninga" <bruninga@usna.edu>
To: "TAPR APRS Special Interest Group" <aprssig@lists.tapr.org>
Cc: <aprssig@lists.tapr.org>
Sent: Tuesday, February 17, 2004 7:33 AM
Subject: [aprssig] Re: APRS enabled balloon on 144.39 over Colorado
>My two cents on BALLOON paths:
>
>BALLOONS = WIDE
>
>REASON: It is not needed for 99% of the flight,
>but it is absolutely essential when it lands.
----------------------------------------------------------------------
Subject: RE: Recovery of KC8UCH-11 APRS Balloon?
From: "Scott Miller" <scott@opentrac.org>
Date: Tue, 17 Feb 2004 08:24:20 -0800
X-Message-Number: 21
>So what exactly are you looking for? Here's a picture of this tetroon
>shortly after launch:
>
>http://mail.gpacademy.org/~rochter/sd4.jpg
And exactly how many UFO reports has this generated? =]
Scott
N1VG
----------------------------------------------------------------------
Subject: Re: APRS enabled balloon on 144.39 over Colorado
From: "Robert Bruninga" <bruninga@usna.edu>
Date: Tue, 17 Feb 2004 11:27:20 -0500
X-Message-Number: 22
>>>Robbie WA9INF <mwrobertson@comcast.net> 2/17/04 10:59:45 AM >>>
>Need to think about it a little... Generally the balloon is
>gonna fall in no-mans land... How can anyone assure
>that it will land close enough too a "WIDE" so that it
>will be heard?
REPLY: Yes, clearly the BEST solution for finding the downed balloon is to
use RELAY. BUT....
1) RELAY is the worst possible path for the other 99% of the flight. It
keys up every users radio NOT just the digis. Thus, you get 20 times
more QRM. AND each time my rig keys up it messes up the TV (think mad
wife). And each time my mobile keys up it blocks my 2m QSO's.
2) In otherwords pins-in-th-coax for anyone that uses RELAY from altitude.
The BAD far out weighs the good.
3) RELAY helps mobiles on the fringes of population centers at no cost
(most HAMS don't live in the city, but the suburbs). Thus it is highly
recommended.
4) BUT Balloons always fall in the boonies. (Although 95% of our population
live near cities, they only account for 5% of the AREA where Balloons
fall. So the gains of using RELAY are small comapred to WIDE. And
certainly not worth the hate-and-discontent across 5 states of using
RELAY..
Believe me, this has been well thought out in the past. The bottom line,
is that WIDE is the only digi path to use on 144.39 in the USA for
Balloons. Or NONE if you think it will land in a flat area and have a good
dedicated search team...
de WB4APR, Bob
----------------------------------------------------------------------
Subject: Re: APRS enabled balloon on 144.39 over Colorado
From: "Scott Miller" <scott@opentrac.org>
Date: Tue, 17 Feb 2004 08:28:42 -0800
X-Message-Number: 23
>direct by my IGate and probably by KF6HJO at the same time, but I don't know
>why IGate density in other places is like.
That was supposed to be 'what'.
Someone mentioned WIDE maybe not being good enough for recovery... how about
setting a path of RELAY, WIDE2-2 and a max altitude of 10,000 feet? It'd
also be nice to have a faster beacon rate on the way down to get a better
projection of the landing site. You'd want to cut it back again after
landing to conserve batteries, though.
Scott
N1VG
----------------------------------------------------------------------
Read previous mail | Read next mail
| |
