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ZL3AI > APRDIG 28.01.04 13:29l 264 Lines 9254 Bytes #999 (0) @ WW
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Subj: TAPR Digest, Jan 26, 1/2
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From: ZL3AI@ZL3VML.#80.NZL.OC
To : APRDIG@WW
TAPR APRS Special Interest Group Digest for Monday, January 26, 2004.
1. digi_ned mailing list
2. Re: UNIDEN MYSTIC
3. Re: aprsd and digined
4. Re: eTrex power
5. Re: etrex power
6. APRS and COM/ActiveX
7. Looking for an article reprint
8. Re: Attended vs Unattended
9. Re: digi_ned mailing list
10. Re: Attended vs Unattended
11. Re: Attended vs Unattended
12. Re: Attended vs Unattended
13. Re: Attended vs Unattended
14. APRS-WG dead?, was re: Attended vs Unattended
15. Re: etrex power
16. Re: etrex power
17. Re: APRS-WG dead?, was re: Attended vs Unattended
18. Re: etrex power
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Subject: digi_ned mailing list
From: Adi Linden <adil@adis.on.ca>
Date: Sun, 25 Jan 2004 23:05:54 -0600 (CST)
X-Message-Number: 1
Is there an active mailing list for digi_ned? I've got it setup and
talking to my KPC-3 but now for the configuration....
Anyone have a simple digi_ned config suitable for APRS? And if it talked
to aprsd on a second port even better :)
Thanks,
Adi
--
Adi Linden | va3adi | va3adi@adis.ca | http://adis.ca
+-----------------------------------------------------------------+
IRLP Node 2590 in Sioux Lookout, Ontario
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Subject: Re: UNIDEN MYSTIC
From: "Charles H. Rahe, II" <crahe@infionline.net>
Date: Mon, 26 Jan 2004 00:57:54 -0500
X-Message-Number: 2
Just one thing Joe - Market Size !!!!
Charlie, AI3L
Joe Della Barba wrote:
>Waterproof, built in GPS, built in maps!
>Why oh why can't we hams have something like this?
>73
>Joe N3HGB
>http://www.uniden.com/productpop/00_productpop.cfm?prd_code=MYSTIC
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Subject: Re: aprsd and digined
From: "Max Philippens (PD0SBH)" <pd0sbh@amsat.org>
Date: Mon, 26 Jan 2004 11:31:54 +0100 (CET)
X-Message-Number: 3
Hi Adi,
I have this config running on PI1EHV-2, the APRS digipeater for Eindhoven
and surrounding. This is a Linux Slackware machine with kernel AX25 (SCC
Card) and digi_ned and aprsd running. So Digi_ned does the actual
digipeating and aprsd is used to gate the RF traffic to the internet.
The config I use is actually pretty easy, just create the ax25 kernel
interface like you would create any ax25 interface on Linux. Next
configure digi_ned and aprsd to use this interface as the radio port. So
both applications use the same ax25 device.
You can find more info (and the config file) on the configuration from
this digipeater on http://sharon.esrac.ele.tue.nl/users/pd0sbh
73, Max PD0SBH
--
First digipeat via PCSAT on 2003-12-27:
1k2: fm PD0SBH to APX121 via PCSAT-1* ctl UI^ pid=F0(Text) len 38 13:29:35
=/4Ke/OptU- Max@Home pd0sbh@amsat.org
Max Philippens PD0SBH
Internet e-mail: pd0sbh@amsat.org
Packet Radio e-mail: pd0sbh@pd0sbh.ampr.org
FBB e-mail: pd0sbh@pi8zaa.#nbo.nld.eu
www.pd0sbh.net / www.scoutinglivingstone.nl
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Subject: Re: eTrex power
From: "Mike Yetsko" <myetsko@insydesw.com>
Date: Mon, 26 Jan 2004 07:00:16 -0500
X-Message-Number: 4
My understanding is that 5v to an ETrex will turn it into a handful of
junk...
>USB port is 5V at 100mA in low-power and 500mA in high-power. The 4 dots
>of connection on the back of a typical eTrex is ground, send, receive
>and power. If the eTrex can handle 5V on the back, then I do not see why
>you should not be able to power the eTrex from a NB - a typical NB
>supplies 500mA. It is the un-powered USB hubs that only provide 100mA to
>each of the 4 additional ports.
>Derek
>KE6JTP
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Subject: Re: etrex power
From: "Mike Yetsko" <myetsko@insydesw.com>
Date: Mon, 26 Jan 2004 07:04:03 -0500
X-Message-Number: 5
>I soldered 2 diodes in series to the bottom of the PCB and plugged in
>our eD1 cable The diodes connect power from the USB port to pin 8 of the
>DB9 connector. Our eD1 cable connects pin 8 to the power pin of a eTrex!
>Cool huh? That's it! Nothing else needs doing, just add the 2 diodes. I
>used two 1N4148's which are rated for only 100ma. Some other type may be
>better. I connected them in series between the 5V USB supply and pin 8
>of the DB9. The no-load voltage looks high at 3.8V but don't worry
>because when the eTrex is turned on it instantly drops to about 3.14V.
And you are relying on what as the regulating element? The internal
resistance of your laptop power feed? What happens with different
batteries in your latop? What happens when the laptop is operated
on external power?
Yeah, sometimes you can get something like this to work, but you're risking
a lot for such little gain...
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Subject: APRS and COM/ActiveX
From: "Scott Miller" <scott@opentrac.org>
Date: Mon, 26 Jan 2004 11:24:36 -0800
X-Message-Number: 6
Has anyone written an APRS decoder as a COM / ActiveX /
whatever-they're-calling-it-this-month control? Preferably in C/C++?
Scott
N1VG
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Subject: Looking for an article reprint
From: "Mike Yetsko" <myetsko@insydesw.com>
Date: Mon, 26 Jan 2004 16:27:53 -0500
X-Message-Number: 7
I need to get a copy of a reprint in the next day and can't find it
locally.
I'm looking for the article on the POCSAG encoder from the Feb 98 issue of
Electronics Now magazine.
Anyone have it in electronic format?
Mike
N1DVJ
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Subject: Re: Attended vs Unattended
From: Henk de Groot <henk.de.groot@hetnet.nl>
Date: Mon, 26 Jan 2004 22:14:01 +0100
X-Message-Number: 8
At 14:01 24-1-2004 -0500, Bob Bruninga wrote:
>On Sat, 24 Jan 2004, Henk de Groot wrote:
>>My experience in Europe is that detection of mobility based on symbols
>>doesn't work very well. What works very well is the way Xastir uses: if it
>>moves it is mobile!
>
>I rejected this concept because MANY mobiles either enroute, or involved
>in activities or stopped at a traffic light, or for whatever purpose may
>have 0 speed when their posit goes out. Yet they are in every sense of
>the word, MOBILE. What you have defined is "MOVING" stations, not MOBILE
>stations.
No, the assertion is: a station that moved once upon a time is a mobile. It
doesn't look at speed at all. The mobile station at the trafic light wasn't
there all day, when it drove up there it moved. As soon as Xastir detected
any movement of a station, Xastir permanenetly knows this station must be a
mobile station. The fact that a while later the same station waits for a
traffic light doesn't change that.
The only mobiles that are not shown as mobile are the ones that never moved
since Xastir started. This must be the mobiles in the parking lot (or when
Xastir was only running for a minute or so). As soon as de owner drives his
car arround the block, it is discovered as mobile, even when after that the
owner parks the vehicle for a few weeks (provided Xastir keeps running
during that time).
>I would ask that Xastir and anyone else that "selects" only on
>velocity, NOT CALL THAT MOBILE. Call it MOVING.
No, it selects on history, the fact if the station ever changed position
(as far as the program can know). That at some point in time the mobile
stopped doesn't matter, it is still mobile since it was seen moveing. The
"mobile" flag is "persistent", once a mobile is discoverd, it will be a
mobile until the station is discarded from memory due to inactivity.
>>Anyway, if it moves it must be mobile, this looks rather fail-safe to me.
>
>But if its MOBILE it may not be moving. I would avoid this ambiguity.
>In emergency work, it is important to know where your mobiles are, and
>who is MOBILE capable.
If it was ever seen moving in the past or present, it must be mobile, is
that a more carefully worded phrase?
I hope you see what I mean now.
Kind regards,
Henk.
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Subject: Re: digi_ned mailing list
From: Henk de Groot <henk.de.groot@hetnet.nl>
Date: Mon, 26 Jan 2004 22:30:31 +0100
X-Message-Number: 9
Hello Adi,
At 23:05 25-1-2004 -0600, Adi Linden wrote:
>Is there an active mailing list for digi_ned? I've got it setup and
>talking to my KPC-3 but now for the configuration....
There was one on BraveNet, but it apparently stopped. Remko, PE1MEW,
maintained the list but he has his hands full with this house since he is
moving. I mailed him a few times about the loss of Bravenet, but he has not
answered yet. It has been a while since I spoke him.
I think you can post on the APRSSIG, as long as DIGI_NED questions are very
low volume I don't think its a problem and it does fit the APRS charter.
The volume on the Bravenet list was very low anyway. I think more questions
and answers were provided on the APRSSIG in the past then on DIGI_NED's own
list anyway. There are several people on the list who can answer you, like
Max, PD0SHB, already did.
Kind regards,
Henk.
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