| |
ZL3AI > APRDIG 16.05.03 09:11l 254 Lines 9293 Bytes #999 (0) @ WW
BID : 1320-ZL3AI
Read: GUEST
Subj: TAPR Digest, May 11, 3/4
Path: DB0FHN<DB0RGB<DB0MRW<DB0ERF<DB0FBB<DB0GOS<ON0AR<ON0AR<IW8PGT<SP7MGD<
VK7AX<ZL2BAU<ZL3VML
Sent: 030515/0735Z @:ZL3VML.#80.NZL.OC #:292 [Chch-NZ] FBB7.00i $:1320-ZL3AI
From: ZL3AI@ZL3VML.#80.NZL.OC
To : APRDIG@WW
Subject: Re: Help for digi K0HGX
From: "Dave Thege" <dthege@ncfcomm.com>
Date: Sun, 11 May 2003 20:18:06 -0500
X-Message-Number: 21
The raw packet appears to be missing thee W after 08900.58. That would make
a difference.
Dave N0XBN
----------------------------------------------------------------------
Subject: Re: Help for digi K0HGX
From: WA8LMF2@aol.com
Date: Sun, 11 May 2003 21:18:52 EDT
X-Message-Number: 22
In a message dated 5/11/2003 3:32:38 PM Pacific Daylight Time,
kc7zru@arrl.net writes:
>Can anyone in Illinois, near Decator - help out the Decator Amateur
> Radio Club with their digipeater?
>
> Findu is currently showing them as being 311.2 miles southeast of
> SEKONDI-TAKORADI, GHANA
>
> But, it does seem that do have a correct posit everynow and then - sort
> of luck of the draw as to wether they'll be near Decator or in Ghana
> according to findu.
Nothing wrong with the digi most likely. You've got a clueless user
somewhere within the digi's coverage area igating it to the Internet system
with buggy or misconfigured software. Somewhere also within the digi's
range is a second station igating properly.
Since findu always uses the MOST RECENT report for a station, it depends on
whether the "good" gated message or the "bad" one got to the APRS server
network first. There may be significant time delays, especially if one
station is gating after one or direct after no digi hops while the other is
gating the same packet after it has traversed additional digi hops.
I refer to this alternating position problem caused by a good and a buggy
Igate alternately reaching the internet "hyper-jumps" .
You only recourse is to identify and contact the Igate feeding bogus posits
into the Internet system. This should be quite easy since findu shows the
raw packet it processed above the maps, which includes the call of the Igate.
----------------------------------------------------------------------
Subject: Re: APRS, How Much RAM is TOO Much?
From: Dennis Hudson <n2lbt@n2lbt.com>
Date: Sun, 11 May 2003 21:30:56 -0400
X-Message-Number: 23
Dude, the question is how much ram is to little. 128M is to little :)
People are trowing away 128M and 64M stick, so go get some of them and
put them in your machine for gosh sakes.
Dennis, N2LBT
----------------------------------------------------------------------
Subject: Re: APRS, How Much RAM is TOO Much?
From: "Mark Fellhauer" <sparkfel@qwest.net>
Date: Sun, 11 May 2003 20:57:25 -0500
X-Message-Number: 24
At 08:30 PM 5/11/2003, Dennis Hudson wrote:
>Dude, the question is how much ram is to little. 128M is to little :)
>People are trowing away 128M and 64M stick, so go get some of them and put
>them in your machine for gosh sakes.
The problem is he's using a MAC, and may be limited to the memory options
of that platform. Some older Apples have very specific memory
requirements/system maximums - low profile EDO SIMMS for example that are
no longer readily locally available or cheap. I believe the old (5 flavor)
iMacs are limited to 128MB RAM max (as are many PC's of a few years
ago). I seem to recall reading about a hack to bring those older iMacs
up to 512MB...
Regards,
Mark
----------------------------------------------------------------------
Subject: Re: Help for digi K0HGX
From: Steve Dimse <k4hg@tapr.org>
Date: Sun, 11 May 2003 22:12:58 -0400
X-Message-Number: 25
On 5/11/03 at 9:18 PM WA8LMF2@aol.com sent:
>In a message dated 5/11/2003 3:32:38 PM Pacific Daylight Time,
>kc7zru@arrl.net writes:
>
>>Can anyone in Illinois, near Decator - help out the Decator Amateur
>> Radio Club with their digipeater?
>>
>> Findu is currently showing them as being 311.2 miles southeast of
>> SEKONDI-TAKORADI, GHANA
>>
>> But, it does seem that do have a correct posit everynow and then - sort
>> of luck of the draw as to wether they'll be near Decator or in Ghana
>> according to findu.
>
>Nothing wrong with the digi most likely. You've got a clueless user
>somewhere within the digi's coverage area igating it to the Internet system
>with buggy or misconfigured software. Somewhere also within the digi's
>range is a second station igating properly.
>
>Since findu always uses the MOST RECENT report for a station, it depends on
>whether the "good" gated message or the "bad" one got to the APRS server
>network first. There may be significant time delays, especially if one
>station is gating after one or direct after no digi hops while the other is
>gating the same packet after it has traversed additional digi hops.
>
>I refer to this alternating position problem caused by a good and a buggy
>Igate alternately reaching the internet "hyper-jumps" .
There are two things wrong with youyr theory. First, the misconfiguration
in IGates you refer to results in not passing non-printing characters in
Mic-E packets, but this is a clear-text packet. There is a much more rare
error, a serial port sync problem, where characters are dropped at random,
but in this case it is always the same character getting dropped, and
therefore that is not the issue.
The other reason this cannot be the problem is that if you look at findU,
both the good and bad packets are coming in through the same IGate.
My guess is the digi has more than one beacon turned on, at least one is a
good packet, and at least one is a bad packet.
Steve K4HG
----------------------------------------------------------------------
Subject: Re: Help for digi K0HGX
From: Jim Duncan <jdbandman@earthlink.net>
Date: Sun, 11 May 2003 21:20:16 -0500
X-Message-Number: 26
The problem is that they've set up an alternate beacon text in one of
the LText buffers and left out a character. Nothing more....
--
73 de Jim, KU0G
Chairman/Coordinator
Kansas City APRS Working Group, W0APR
First Alert Storm Team KMBC-TV9
Mailto:ku0g@kcaprs.org
Webpage: http://www.kcaprs.org
----------------------------------------------------------------------
Subject: Re: Reccommended Path Broadcast
From: Bob Bruninga <bruninga@usna.edu>
Date: Sun, 11 May 2003 22:40:57 -0400 (EDT)
X-Message-Number: 27
On Sat, 10 May 2003, Rich Osman wrote:
>It'd be really handy for weather events, get those wx stations to be
>chatty when we need them but eliminate the need for them to be soaking
>up bandwidth at other times. ... Does APRS support that already?
APRSdos decays non-changing WX data just like any other old-non changing
position reports. If the Temperature, or Rain values have not changed or
if the wind has not changed by a certain amount, then the period to the
next WX report is extended. If a new Rain, Temperature or over threshold
wind change takes place, then the packet is rescheduled as NEW data and
sent now and the period is reset to a short value (which then decays).
Sending NEW data now and refreshing it frequently and decaying old data
out of the system was fundamental to the design of APRS. Unfortunately
such fundamentals were left out of many popular clients.
de WB4APR@amsat.org, Bob
----------------------------------------------------------------------
Subject: Re: ICON Color Attribute
From: Bob Bruninga <bruninga@usna.edu>
Date: Sun, 11 May 2003 22:42:42 -0400 (EDT)
X-Message-Number: 28
On Sat, 10 May 2003, Randy Allen wrote:
>Is there any way to have APRS DOS send my position icon in yellow as a
>SPECIAL station similar to the MIC-E and D700?
Unfortunately, it only triggers on the bits in the Mic-E format.
----------------------------------------------------------------------
Subject: Re: Preferences
From: Bob Bruninga <bruninga@usna.edu>
Date: Sun, 11 May 2003 22:52:38 -0400 (EDT)
X-Message-Number: 29
On Sat, 10 May 2003, Robbie wrote:
>Hi all,
>
>What is the preferences for a TinyTrak II for Dayton? Should
>I set it for Mic-E and say RELAY,WIDE,WIDE,WIDE or maybe
>RELAY,WIDE3-3
Id say RELAY,WIDE,WIDE at the most at the beginning of the trip
depending on how many 100's of miles you are away. As you get close,
drop to RELAY,WIDE and then when you get there, only WIDE.
Bob
----------------------------------------------------------------------
Subject: APRS IGate special calls
From: Bob Bruninga <bruninga@usna.edu>
Date: Sun, 11 May 2003 23:34:05 -0400 (EDT)
X-Message-Number: 30
IGate operators
Reminder: We have asked that IGates include "KIDS" and "SCOUTS" as
"always-gate-to-RF-messages-to-these-calls". This way kids groups on KIDS
DAY or scouts can send a local APRS message to SCOUTS or KIDS and have it
Igated elsewhere to other scouting or kids groups.
This is a reach-out provision.
Kids day is the weekend before Fielday.
---------------
On Mon, 12 May 2003, Michael Grow wrote:
>This year our troop is planning a Field Day outing,...
>We will be offering a Radio Merit Badge course the weekend preceding,
>[kids day]...
>and would like to set up a schedule with any other Scouts
>participating in Field Day.
All APRS I-gates are supposed to pass the TOCALL of SCOUTS. So if are on
the air and have APRS with you, send a message to "SCOUTS" announcing
your operations and it will go worldwide to anyone monitoring APRS live...
BOb
----------------------------------------------------------------------
Read previous mail | Read next mail
| |
