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ZL3AI > APRDIG 22.11.06 06:17l 135 Lines 4859 Bytes #999 (0) @ WW
BID : 9109-ZL3AI
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Subj: [APRSSIG] Vol 29 #18, 1/1
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From: ZL3AI@ZL2BAU.#79.NZL.OC
To : APRDIG@WW
Today's Topics:
1. RE: San Diego Path Settings (Dave Aronovitz)
2. RE: Remote monitoring (Bogdan, Rick)
3. RE: Finding libaxu (Richard Hoskin)
4. APRS DF reporting (R. Simmons)
5. RE: APRS DF reporting (scott_at_opentrac.org)
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Message: 1
Date: Mon, 20 Nov 2006 11:09:42 -0800 (PST)
From: Dave Aronovitz <k1lpi_at_yahoo.com>
Subject: [aprssig] RE: San Diego Path Settings
Thanks to the list for your advice on San Diego APRS paths.
Well, I think Ray owes me a bottom dollar. I do not have an swr meter but I
have tested the entire RF path by easily working local FM voice repeaters
in the San Diego area. Good signal reports, and a few reports of locals who
can hear me on the input frequency as well. I live in a trailer and there
are large holes for coax pass throughs. No crushed coax here.
As it turns out, using a path suggested by Cap Pennel, KE6AFE, of WIDE1-1,
WIDE2-1, I seem to be getting more packets into the system. Thanks Cap.
I will be on the move again on Saturday heading up to Corona CA and it will
be interesting to see if my track appears on findu afterwards.
73 de K1LPI
Dave
K1LPI's Little House on the Highway
cell 408 307-2831, please leave voicemail
Please update address books to k1lpi_at_yahoo.com
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Message: 3
Date: Tue, 21 Nov 2006 15:11:42 +1100
From: "Richard Hoskin" <vk3jfk_at_amsat.org>
Subject: RE: [aprssig] Finding libaxu
Thanks Bill.
Would you mind emailing me when you've put the package on the web.
Cheers
Richard
VK3JFK
>>I'm looking for libaxu library but the "libaxu" project is gone from
>>sourceforge and I did not find any other place to download it.
>>
>>I want to set up an APRS Packet counter similar to
>>http://richdea5.no-ip.org/ for our region of the world.
>
>Sourceforge has become too bloated.. I'll have a hog-counter package
>put together for downloading as soon as possible.
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Message: 4
Date: Tue, 21 Nov 2006 09:27:11 -0800
From: "R. Simmons" <pelican2_at_silcom.com>
Subject: [aprssig] APRS DF reporting
To all... I'm a new member and have no prior experience with APRS or any
packet modes, but I am considering something that might interest folks here.
I'm Bob Simmons, ( WB6EYV ) and I make the PicoDopp DF, which is a DSP
Doppler DF with RS232 output and a GPS input.
I recently had cause to investigate packet and APRS technology for a
potential customer, and I now think I could add automatic APRS DF reporting
to the PicoDopp, without too much trouble. ( or offer it as a separate
optional board ) It would have a PTT output, an audio input to check for
channel = busy, and a tone output. I would also have to create an IBM
program to set the semi-static variables ( like the user's call sign,
destination address, etc. ) which would be stored in EE memory of the PIC
chip, and which would not change during normal operation. It wouldn't be
terribly easy to do all this, but I think also not terribly hard.
I want to solicit opinions and comments on this, and suggestions for
features. I don't want to turn this into a major engineering effort, but if
there is an interest out there for such a beast, I probably will pursue it.
Offers to critique and test the design ( if I proceed ) would also be
appreciated.
TNX DE WB6EYV
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Message: 5
Date: Tue, 21 Nov 2006 09:46:30 -0800
From: <scott_at_opentrac.org>
Subject: RE: [aprssig] APRS DF reporting
This might not be an answer to your question, but is the interface spec
listed somewhere? Better yet, could I get some sample data? I'd be happy
to add support to the OpenTracker. It'd probably need to be a custom
firmware build, probably sacrificing telemetry or some other feature to make
room, but it shouldn't be a big deal.
Once that's done, you could just integrate the OpenTracker chip with your
board (with a crystal and a few passives) and save yourself the trouble of
programming the APRS and Bell 202 stuff from scratch. Or you could leave it
to the user to procure the kit separately.
The Tracker2 has a lot more code space and wouldn't need to sacrifice any
other features. If the output from the DF unit is constant and automatic, I
can probably write some code to recognize it automatically. The autobaud
function is working now, so you can plug an NMEA GPS receiver or Peet Bros
weather station into either serial port at any supported baud rate and it
just works. I want to make it do that with as many input devices as
possible.
Scott
N1VG
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