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ZL3AI > APRDIG 06.05.03 22:21l 257 Lines 9720 Bytes #999 (0) @ WW
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Subj: TAPR Digest, May 03, 1/3
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From: ZL3AI@ZL3VML.#80.NZL.OC
To : APRDIG@WW
TAPR APRS Special Interest Group Digest for Saturday, May 03, 2003.
1. Re: APRS Pager?
2. Re: APRS FINDU game.
3. RABBIT TNC
4. Re: RABBIT TNC
5. Re: APRS FINDU game.
6. Re: APRS Pager?
7. RE: APRS-enhanced sheep
8. Re: APRS Pager?
9. Re: APRS FINDU game.
10. kpc3 questions?
11. Re: kpc3 questions?
12. RE: APRS-enhanced sheep
13. RE: APRS-enhanced sheep
14. Re: Hidden Transmitters WAS: APRS FINDU game.
15. Wanted; CHEAP GPS RX
16. Re: Wanted; CHEAP GPS RX
17. Re: APRS Pager?
18. APRS In Emergencies; Was Re: APRS Pager?
19. Re: Wanted; CHEAP GPS RX
20. WinAPRS program error message
21. REF: Garmin ETrex
22. Sheep In Space... And a Lyris configuration RANT
23. Re: REF: Garmin ETrex
24. Re: APRS In Emergencies; Was Re: APRS Pager?
25. Re: Wanted; CHEAP GPS RX
26. Re: Wanted; CHEAP GPS RX
27. You guys brought up some really good points...
28. aprs events calendar
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Subject: Re: APRS Pager?
From: "Frank Kostelac" <frank@kostelac.com>
Date: Fri, 2 May 2003 21:09:11 -0700
X-Message-Number: 1
Is there some reason we can't use APRS for tracking? Use packet for the rest
of this stuff. I read where you guys are trying to move all the packet stuff
to APRS. Then I get calls from from folks all the time complaining that
since there is no use on their packet DIGI they are taking it down off the
hill.
Quit it!
Use APRS for tracking! Do messaging and pageing on packet which is where it
belongs.
imo
Frank
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Subject: Re: APRS FINDU game.
From: "Dakota Summerhawk" <dakotas@dotorg.org>
Date: Fri, 2 May 2003 22:52:41 -0600
X-Message-Number: 2
A question on this "Game" can the position TX be extended on the D7 for use
in fox hunts? I have been playing T-hunt for a while now and the team is
getting board, I was thinking of a fox on aprs but minus the GPS or position
that would key up for the burst and then off again with the path blank that
way it does not relay or wide into the system. Would this work to be able to
give the team some better hunting?
Dakota
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Subject: RABBIT TNC
From: "Andrew Rich" <andrew.rich@bigpond.com>
Date: Sat, 3 May 2003 21:41:45 +1000
X-Message-Number: 3
What happened to the Rabbit TNC development ?
Has all gorn quiet
Andrew VK4TEC
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Subject: Re: RABBIT TNC
From: "Wes Johnston" <wes@johnston.net>
Date: Sat, 3 May 2003 09:24:52 -0400
X-Message-Number: 4
Not too much at this point... However there are two promising things going
on.
1. I'm once again stuck in a hotel room for about a month (away from the 3
year old "distraction" at home.
2. some aprs servers have implemented filtering which allows the rabbit to
receive only regional data and not be so overwhelmed.
The short answer is that I can work on it a little at a time here in this
hotel. If I don't get it running reliably with the month, it prob won't
happen for another year.
Wes
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Subject: Re: APRS FINDU game.
From: Dave VanHorn <dvanhorn@cedar.net>
Date: Sat, 03 May 2003 08:32:15 -0500
X-Message-Number: 5
At 10:52 PM 5/2/2003 -0600, Dakota Summerhawk wrote:
>A question on this "Game" can the position TX be extended on the D7 for use
>in fox hunts? I have been playing T-hunt for a while now and the team is
>getting board, I was thinking of a fox on aprs but minus the GPS or position
>that would key up for the burst and then off again with the path blank that
>way it does not relay or wide into the system. Would this work to be able to
>give the team some better hunting?
Not long enough to be useful. The only option you have is to crank up TXD.
With all the brains available in the current crop of radios, I'm surprised
that nobody has done this yet in an HT.
I did a pic controlled FM transmitter some years back. None available to
buy now, but you could maybe build it from scratch.
National Semi PLL chip, F84 pic, and a few discretes. It has a windows
program to configure it, with commands like "tune", transmit, CW , etc.
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Subject: Re: APRS Pager?
From: T C <boytroy54@yahoo.com>
Date: Sat, 3 May 2003 09:49:10 -0700 (PDT)
X-Message-Number: 6
Frank,
My name is Troy w8tcc, and I agree with you to a point. I have a packet
Digi, Node and I use APRS+SA. I don't use them together. My packet is
seperate and I run that on 145.030. APRS is run on 144.390.
The nice part about messaging on APRS is it can travel along distance where
sometime guys with packet digis are far and few between. In Michigan where
I live, Lansing, there are alot of packet stations but in Traverse City,
140 miles north, where my wife and I vacation, there are very few, if any
packet stations.
A lot of individuals run APRS in the north country, and some can even digi
as they are moving. This has been proven and I can get almost immediate
messages through APRS. It has worked wonderfully.
But if we overload the true intent of APRS with messinging, we will loose
the very thing that has made it what it is. We must stifel the amount of
messages sent and regain the real value of APRS.
Packet is cool, using the KA-Node function in conjunction with the packet
digi, and we have a very nice mail system and in some cases the ability to
converse over long distances.
I don't forsee the need in a lot of disaster situations where APRS would be
needed. I do see the need for packet in every disaster situation, so I
think there is a time and a place for each disipline.
Thanks for your input and nice to meet you.
73 de w8tcc, Troy
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Subject: RE: APRS-enhanced sheep
From: Miller Scott Contr 30SCS/FTI <Scott.Miller@vandenberg.af.mil>
Date: Sat, 3 May 2003 17:03:40 -0000
X-Message-Number: 7
Great, another icon to add to the list. =]
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Subject: Re: APRS Pager?
From: Miller Scott Contr 30SCS/FTI <Scott.Miller@vandenberg.af.mil>
Date: Sat, 3 May 2003 17:14:08 -0000
X-Message-Number: 8
I think the idea is that APRS already has the ability to carry short
pager-style messages both over the air and through the backbone. Carrying
email, though, is definitely something best left to conventional packet.
One of the goals of Opentrac is to provide resource discovery so that you
can find the appropriate tool for a given task. Sort of like DHCP for your
radio.
What I'd like to see is a pager that actually listens to AX.25 on 144.39 and
decodes message text addressed to a particular group. I think POCSAG's got
some features that let you reduce power consumption, though. The last VHF
pager I had (a Motorola tone-and-voice unit) could barely last one day on a
charge.
Ah, the memories.... there's nothing like being woken up at 2:00 am by an
ear-splitting squeal, followed by 30 seconds of equally loud static, and
then, "Uhh... all 32 Rescue units, disregard." Unless it's getting all the
way to the driveway of the SO before getting the cancellation page. I think
the dispatchers just liked messing with us...
Scott
N1VG
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Subject: Re: APRS FINDU game.
From: Miller Scott Contr 30SCS/FTI <Scott.Miller@vandenberg.af.mil>
Date: Sat, 3 May 2003 17:22:52 -0000
X-Message-Number: 9
What's the point, exactly? Are you trying to get the D7 to beacon on its
own so you can hide it? I think I'd be careful about leaving one of those
unattended.
Back before the days of PICs, we used to use an ultra-cheap ID circuit that
was made from (if memory serves) a NAND gate and a 128-bit shift register.
You had to clock the ID in with a couple of switches, which was kind of a
pain, but it worked great. We'd hook it up to a hamfest special $30 HT and
stash it someplace - maybe stick it in a plastic bag, put a 1/4 wave brass
rod antenna on it, bury it, and stick a dried out hollow weed over the
antenna. Preferably next to a chain link fence.
Scott
N1VG
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Subject: kpc3 questions?
From: "Wes Johnston" <wes@johnston.net>
Date: Sat, 3 May 2003 14:08:01 -0400
X-Message-Number: 10
To catch up with my progress....
I have a kpc3 (not plus) tnc which is misbehaving. Initially, I found that
at power up the power LED would glow normally, then after 1/2 a second would
get brighter. I found the VR1 regulator was bad and was putting out 5.65
volts. Replaced the regulator.
Now, I am concerned that the high voltage has damaged the 3105 modem chip.
When in CD INT mode, the TNC receives packets and digipeats just fine. I
mean 100%. When in CD SOFT mode however, the CD light comes on solid during
the initial ax25 flags which are sent and then when data actually begins to
flow, the CD led starts to flicker. It may receive 10% of packets or less
in this mode. I have checked that the CD signal from the 3105 is working,
and that the schockley gate on U5 is working properly. The CD signal gets
inverted here and enters the CPU on pin 17. The operation of this hardware
"energy detector" operates whether the TNC is in CD SOFT or CD INT mode, I
suppose the CPU just ignores it when in CD SOFT mode.
Does anyone have any clue about this? How could packets be decoded reliably
when in energy detect mode and not in true DCD mode?
Wes
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