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ZL3AI > APRDIG 09.10.03 21:34l 272 Lines 10498 Bytes #999 (0) @ WW
BID : 2114-ZL3AI
Read: GUEST
Subj: TAPR Digest, Oct 06, 3/4
Path: DB0FHN<DB0THA<DB0ERF<DB0BRI<DB0SIF<DB0FSG<DB0RGB<OK0PPL<DB0RES<ON0AR<
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Sent: 031008/1242Z @:ZL3VML.#80.NZL.OC #:9997 [Chch-NZ] FBB7.00i $:2114-ZL3AI
From: ZL3AI@ZL3VML.#80.NZL.OC
To : APRDIG@WW
Subject: Re: 9600 user data
From: "Bill Vodall WA7NWP" <wa7nwp@jnos.org>
Date: Mon, 6 Oct 2003 09:05:19 -0700
X-Message-Number: 16
>How do I get all those stations onto 70cm at 9600? Is there some app which
>will take rx'ed IGATE traffic and put it on the air direct (ie not as 3rd party
>packets with my callsign).
Digi_Ned works great for that. It doesn't do 3rd party which is an option
that needs to be added.
APRS-Plus has a "channel filler" option. Not good for "all" packets to
fill a 9600 channel.
Aprsd has a gate to RF feature that does pretty good too.
Digi_Ned is the real solution - so far.
Bill, WA7NWP
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Subject: VOICE ALRT FUBAR in Ft Worth?
From: Bob Bruninga <bruninga@usna.edu>
Date: Mon, 6 Oct 2003 12:08:03 -0400 (EDT)
X-Message-Number: 17
I got this report of what appears to be some DIGIS in Ft Worth TX running
with PL100, thus making it a real pain for travlers running Voice Alert?
Could someone up there listen to 144.39 and verify and or fix?
Thanks
Bob
---------- Forwarded message ----------
Date: Mon, 6 Oct 2003 10:47:37 -0500
From: xxx
Subject: VOICE ALRT
HI, BOB. I'M ON THE ROAD AGAIN, AND THOUGHT I'L LET YOU KNOW -- THERE ARE
SEVERAL STATIONS IN THE FORT WORTH AREA USING 100 HZ PL ON THEIR DIGIS.
NOT SURE WHO, AS THE DISPLAY ON MY HAMHUD IS NOT WORKING. KINDA
INTERESTING, THOUGH...
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Subject: RE: [ui-view] TM D-700 not acking
From: "Christensen, Eric" <CHRISTENSENE@MAIL.ECU.EDU>
Date: Mon, 6 Oct 2003 12:22:47 -0400
X-Message-Number: 18
I agree!!! That is something that is needed!
Okay... Can anyone fill me in on if there is a SIG for the TM-D700 and the
TH-D7A? If not, then I volunteer to setup such a list and "manage" if there
is sufficient interest. Please reply off the SIGs.
TNX,
Eric KF4OTN
-----Original Message-----
From: Jan T Pharo [mailto:janpharo@ONLINE.NO]
Sent: Monday, October 06, 2003 12:11
To: ui-view@yahoogroups.com
Subject: Re: [ui-view] TM D-700 not acking
"Christensen, Eric" <christensene@mail.ecu.edu>, Mon, 6 Oct 2003 09:58:51
-0400:
>I have 'Cc'ed the APRSSIG on this so that maybe someone might have an
>answer...
maybe the right place to post the entire thread is the TM-D700 email list
(there should be such a thing)
--
73
de jan, la2bba
la2bba@arrl.net
<http://www.qsl.net/la2bba>
JO59MA
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Subject: Re: Further case for APRSteward [was: is wide5-7 a valid path?]
From: Bob Bruninga <bruninga@usna.edu>
Date: Mon, 6 Oct 2003 14:14:56 -0400 (EDT)
X-Message-Number: 19
On Mon, 6 Oct 2003, Bill Vodall WA7NWP wrote:
>The real solution is still to simplify paths (pseudo aliases) and real
>digipeaters instead of the inadequate TNC based solutions... IMHO...
Consider this:
Under my new n-N paradigm, WIDE7-7 could almost be the universal path of
almost everyone. This is because, under the new n-N paradigm, the NETWORK
(as set up by the local SYSOPS who understand it) in an area DECIDE how
far these packets go by how they set up their WIDEn-N, LANn-N and
LINKn-N system.
With proper planning *using-existing-TNC's* this CAN BE DONE. No system
should be vunlerable to overload due to user settings of long hop values.
As I have shown, this is EASY to do with just a little planning and
cooperation...
It ALL DEPENDS ON STATION DENSITY. As long as digis are set up to honor
the UNIVERSAL paths of RELAY, WIDE and the new n-N paradigm, and to carry
traffic no farther than the ALOHA circle for that area, then no local net
can be flooded by a wrong path from an uninformed user. If he uses
WIDE7-7 in net with only 12 digis within a firewall, or along a LINK-n-N
or within a LANn-N network, it will only generate 12 copies (one at each
digi) whether it was launched as a WIDE7-7 or a WIDE3-3. It is
independent of the user.
This is what the new n-N paradigm is all about...
Bob
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Subject: RE: Isabel and APRS
From: "Spider" <spider@rivcom.net>
Date: Mon, 6 Oct 2003 11:27:40 -0700
X-Message-Number: 20
>I'm looking at putting together some small trackers that can be thrown in
>emergency vehicles that are going out during the storm so we can determine
>their location... exactly.
Eric,
I just purchased a COMMTRAK unit that I have been showing around. This is a
very nice pre-canned APRS unit.
Stick the GPS antenna in the window area, hook a 2m antenna coax to it, plug
it into 12v and away you go and it's capable of an 2m freq!
Jim, WA6OFT
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Subject: Help - either boat is stolen or GPS/FINDU is in error
From: Joe Della Barba <joe@dellabarba.com>
Date: Mon, 6 Oct 2003 15:32:49 -0400
X-Message-Number: 21
I just checked FINDU and my boat seems to be sailing around without me! Can
someone in the Annapolis-Baltimore area take a look at N3HGB-5 and see if
she looks like she is underway. The speed reading I got of 23 knots is not
possible, so I am hoping this is just a glitch.
Thanks,
Joe
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Subject: Igate/path questions for the group
From: "Jeff Thomas - KD4EVB" <kd4evb@hotmail.com>
Date: Mon, 6 Oct 2003 17:40:26 -0400
X-Message-Number: 22
Tossed these questions out before but didn't get any feedback (beyond a few
folks wondering the same thing), had them buried in another message so they
probably got overlooked. Some pretty common questions coming up now as I
discuss APRS with other users and digi sysops, plus lots of conflicting
answers to some:
So here goes, maybe we can all learn something here:
Is 5 WIDE's in a path a valid path? I seem to recall hearing that you could
only do a 3 WIDE's in a path that way, but I tend to think I've seen a lot
worse in action, grin.
I haven't confirmed it on the air (didn't want to get shot, shot again, and
drug thru the streets by certain folks if they saw me try such a path) but
isn't WIDE7-7 the max you can do under WIDEn-n or does that depend upon how
your digi impliments it? Or was that another one of the protocol standards
that sort of never got implimented in any of the final digi products?
How long do the IGATE's remember hearing a station as "local" to them? Is
it memory based or time based? What does the IGATE software consider
"local"? Anything heard regardless of path or what only seems to be heard
direct? This info would be invaluable for determining how far "back" you
degrade the tx rates before the IGATE's loose track of you as being local to
them. In other words if the IGATE only remembers what it's heard in the
last 40-50 minutes (a value I've been told of several times) then degrading
a tx rate to say once an hour could leave a 10-20 minute spell in there that
the IGATE doesn't think you're local to it anymore. Again, I've heard all
sorts of values, 40-50 minutes comes up a lot, but have no clue myself and
why I'm asking folks that might be more familiar with the inner workings of
the IGATE system.
Say I message station B over on the west coast with a path of whatever I
choose, how does that come back thru the IGATE? Does the reply back to me
come out of the IGATE using the path set by & used by the local IGATE? My
original path? The remote station's path that was used to get the reply to
the IGATE on his end? Does having the first digi's callsign inserted in the
path help get the packets back thru the igates? Example: would WIDE3-3 or
digi,WIDE2-2 be better in terms of the IGATE getting things back to where
they need to go (digi = specific callsign of the first digipeater). Of
course some of this is not that applicable to the mobiles, but I'm basically
asking this assuming fixed stations on a perfect rf network.
Anyone know of a good page on setting up an IGATE from scratch? Prefer
Linux info but will take whatever, I'm sure many of the fundamentals are the
same regardless of platform?
Is UIDIGI or DIGINED available under Linux and how stabile is it. I've got
a lot of feedback on DIGI_NED under DOS not being very reliable, could of
just been their setup/hardware, but either way I'm not too fond of running
anything on DOS that needs to be halfway reliable, grin. By reliable I mean
in terms of comparable to a standalone KPC3+ which I've got several that
have been up for months non-stop and one that has been going non-stop and
under load for just short of 2 YEARS and a month right now. Not too fond of
basing anything off a PC, but it appears to be the trend if we want more
intelligent digipeating options.
What's the pro's and cons of UIDIGI versus DIGI_NED? Can one or the other
be implimented in EPROM form (I think UIDIGI can be done this way)?
Thanks in advance.
73 de Jeff, KD4EVB
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Subject: Re: Igate/path questions for the group
From: Bob Bruninga <bruninga@usna.edu>
Date: Mon, 6 Oct 2003 19:12:26 -0400 (EDT)
X-Message-Number: 23
On Mon, 6 Oct 2003, Jeff Thomas - KD4EVB wrote:
>So here goes, maybe we can all learn something here:
>
>Is 5 WIDE's in a path a valid path?
Valid, yes, but "acceptible", NO! Generic routing by RELAY and WIDE
should never be longer than 2 hops. If you need to go farther, choose one
of the three n-N mechanisms, or put specific calls in for specific hops.
No more Generic FLOODING beyond your own LAN..
>Isn't WIDE7-7 the max you can do under WIDEn-n?
Yes, and NOT ACCEPTIBLE under the current flood-all-directions-network we
have. In the future, I hope the sysops through proper planning of their
ALOHA areas will have all of the new n-N paradigm in place so that the
size of N wont really matter. The packet will only go as far as it is
allowed to go in the given situation...
>...how does that come back thru the IGATE? Does the reply back to me
>come out of the IGATE using the path set by & used by the local IGATE?
Yes, you have no control over it. TO get traffic from an IGate, you have
to be within its footprint (its path), not much else you can do but move
closer to it. In general, we dont want IGates flooding large areas with
their traffic either. Preferably they hit all their users with 2 hops or
less.
Bob, WB4APR
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