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ZL3AI > APRDIG 14.12.03 10:05l 304 Lines 9466 Bytes #999 (0) @ WW
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Subj: TAPR Digest, Dec 11, 1/2
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From: ZL3AI@ZL3VML.#80.NZL.OC
To : APRDIG@WW
TAPR APRS Special Interest Group Digest for Thursday, December 11, 2003.
1. Re: Mini-ITX computers
2. Re: Wx tracker code
3. Re: Wx tracker code
4. Re: d7a GPS Cable?
5. Re: d7a GPS Cable
6. Re: d7a GPS Cable
7. Re: KPC3 and a Radio Shack HTX-212
8. Third try
9. Re: Third try
10. Re: Third try
11. Re: Third try
12. Cannot Connect to APRServe Network
13. Re: Third try
14. Homebrew transmitters
15. Re: Homebrew transmitters
16. Re: Homebrew transmitters
17. APRS-IS messaging?
18. RE: APRS-IS messaging?
19. Using PSK31
20. Re: Using PSK31
21. Re: Using PSK31
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Subject: Re: Mini-ITX computers
From: "James Lux" <aprssig@luxfamily.com>
Date: Wed, 10 Dec 2003 23:37:25
X-Message-Number: 1
You might also look at http://www.mini-box.com/
They've got an automotive interface/sequencer widget that goes between auto
12V and the 12V input ATX power supply. (and they've got 60 and 70W
supplies that snap directly onto the ATX connector, as well (a bit
different form factor than some of the other vendors).
The automotive adapter, the 12V input PS, a CF adapter, and you're pretty
well set up. Sound card is built into the mini-itx, so you should be able
to run something like the 'AGW soundcard TNC.
Another idea would be to run the mini-itx off a sealed battery of some sort
(i.e. VRLA or AGM) that is charged off the vehicle supply by any one of the
12V<>12V chargers. I've been fooling with a Xantrex EchoCharger to charge a
full size deep cycle to run a HF rig in my car. I haven't noticed any real
obvious spurs from the charger yet, but I also haven't operated enough to
pull the radio battery down very far. In any event, the Xantrex (which is
$100+) has some filtering and voltage regulation built into it.
Jim W6RMK
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Subject: Re: Wx tracker code
From: "Gerry Creager (N5JXS)" <gerry.creager@tamu.edu>
Date: Thu, 11 Dec 2003 01:15:34 -0600
X-Message-Number: 2
Interesting that you mention this.
In discussions at the end of the US Weather Research Program meetings here
in Boulder, the folks that assimilate and redistrbute the APRS Weather data
at NOAA's Forecast Systems Lab, the National Weather Service, and I were
discussing mobile weather stations.
We're thinking truckers, and specifically, locating a simple
temp/pressure/humidity packate similar to the K0RX uWx board, behind the
aerodynamic wind screens we see atop the tractor cabs. As an aside, we all
agreed that anemometry would be a cheap thrill, so we're not asking for
that.
If there's any truckers interested in doing this, and then registering as a
Citizen's Weather station, and providing mobile data, please contact me
off-line.
73, gerry n5jxs
David Holland wrote:
>Hi
>
>I am looking for some code to build a stand alone weather tracker. I want
>to build a number of simple transmitters with out using a PC or a TNC.
>
>It would use a PIC that has analog inputs for the temp, digital for the
>wind speed and direction.
>
>This is a project to provide some weather data for a mountain cycle race
>next year. ie to give wind & temp data so that we can decide when to plan
>rider changes.
--
Gerry Creager -- gerry.creager@tamu.edu
Texas Mesonet -- AATLT, Texas A&M University
Office: 979.458.4020 FAX: 979.847.8578
Cell: 979.229.5301 Pager: 979.228.0173
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Subject: Re: Wx tracker code
From: "Mike Yetsko" <myetsko@insydesw.com>
Date: Thu, 11 Dec 2003 06:32:09 -0500
X-Message-Number: 3
>I am looking for some code to build a stand alone weather tracker. I want
>to build a number of simple transmitters with out using a PC or a TNC.
>
>It would use a PIC that has analog inputs for the temp, digital for the
>wind speed and direction.
>
>73 David ZL2TAA\
As long as you're going digital for all but temp, why not go digital there
as well? You can pick up Dallas Semi '1-wire' temp sensors cheap
enough. And if you are doing a 'dedicated application' where the part
is on a processor pin, the code is simple. Just send bits and read bits
routines. All the ID, configuration, and serial number hassles go away
when you KNOW there's only that one part on one pin of the processor.
I use the DS1820 series parts on a Z8+ in my stuff.
Mike
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[commercial content deleted]
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Subject: Re: KPC3 and a Radio Shack HTX-212
From: "Jason Rausch" <ke4nyv@hamhud.net>
Date: Thu, 11 Dec 2003 10:49:0
X-Message-Number: 7
Check out this diagram:
http://www.packetradio.org/!TNCables/KV2RSRJ45.jpg
Hope that helps you out.
Jason KE4NYV
www.ke4nyv.com
RPC Electronics
www.ke4nyv.com/rpc
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Subject: Third try
From: Earl Needham <needhame1@yucca.net>
Date: Thu, 11 Dec 2003 14:01:04 -0700
X-Message-Number: 8
I've tried to get this to the list THREE TIMES NOW!
Is there something going on with the weather maps at Findu? They don't
seem to be working any more.
Thanks,
Earl
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Subject: Re: Third try
From: Bob <n4bk@hiwaay.net>
Date: Thu, 11 Dec 2003 15:21:16 -0600
X-Message-Number: 9
Just looked myself up and working fine.
Bob N4BK
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Subject: Re: Third try
From: Earl Needham <needhame1@yucca.net>
Date: Thu, 11 Dec 2003 14:37:43 -0700
X-Message-Number: 10
At 03:21 PM 12/11/2003 -0600, Bob wrote:
>Just looked myself up and working fine.
So tell me what link you used -- the one I've used for many months
( http://www.findu.com/cgi-bin/find.cgi?kd5xb-2&radar=*** ) no longer works.
Earl
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Subject: Re: Third try
From: "AE5PL Lists" <HamLists@ametx.com>
Date: Thu, 11 Dec 2003 15:41:05 -0600
X-Message-Number: 11
Try http://www.findu.com/cgi-bin/find.cgi?call=kd5xb-2&radar=***
73,
Pete Loveall AE5PL
pete@ae5pl.net
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Subject: Cannot Connect to APRServe Network
From: "Dave Sloan" <desloan@earthlink.net>
Date: Thu, 11 Dec 2003 14:45:07 -0700
X-Message-Number: 12
I have been connecting to the network without any problem for several
months. But when I try to connect to it now I'm getting "TCP open failed". I
am running WinAPRS2.6.1 on a PII with Win88SE. I have rebooted and still am
having a problem. Where do I go next?
Thanks,
Dave N0EOP
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Subject: Re: Third try
From: Earl Needham <needhame1@yucca.net>
Date: Thu, 11 Dec 2003 14:49:24 -0700
X-Message-Number: 13
At 03:41 PM 12/11/2003 -0600, AE5PL Lists wrote:
>Try http://www.findu.com/cgi-bin/find.cgi?call=kd5xb-2&radar=***
AH HA! The slightest change...
Thanks, that did it.
7 3
Earl
Earl Needham, KD5XB, Clovis, New Mexico DM84jk
KD5XB-2>APW251,PCSAT-1%:=3425.83N/10313.55W-PHG7150/WinAPRS 2.5.1
-EARL_CLOVIS -251-<630>
SETI@Home: 11147WU/7.23yrs!
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Subject: Homebrew transmitters
From: "Scott Miller" <scott@opentrac.org>
Date: Thu, 11 Dec 2003 14:01:33 -0800
X-Message-Number: 14
Does anyone know where I can find a good, modern design for an APRS 2-meter
transmitter that'll put out anything between 10 and 300 mw? I browse
through the RF sections of Maxim/Dallas or Analog's sites and they've got
all sorts of nifty integrated devices, but RF design isn't really my area.
Most of what I do find is for HF QRP.
Hams can't resist playing with new technology, and I know there have to be
designs out there using far fewer parts than the old homebrew designs. I
just can't find them. Can someone point me in the right direction?
Thanks...
Scott
N1VG
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Subject: Re: Homebrew transmitters
From: Earl Needham <needhame1@yucca.net>
Date: Thu, 11 Dec 2003 15:14:35 -0700
X-Message-Number: 15
At 02:01 PM 12/11/2003 -0800, Scott Miller wrote:
>Does anyone know where I can find a good, modern design for an APRS 2-meter
>transmitter that'll put out anything between 10 and 300 mw?
Unless you want to build it yourself (an admirable goal), just
find someone with an Icom 2100H that has "died". I guess it's fairly
common for the power output to drop to almost nothin'...
7 3
Earl
Earl Needham, KD5XB, Clovis, New Mexico DM84jk
KD5XB-2>APW251,PCSAT-1%:=3425.83N/10313.55W-PHG7150/WinAPRS 2.5.1
-EARL_CLOVIS -251-<630>
SETI@Home: 11147WU/7.23yrs!
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Subject: Re: Homebrew transmitters
From: "Scott Miller" <scott@opentrac.org>
Date: Thu, 11 Dec 2003 14:29:15 -0800
X-Message-Number: 16
I'd rather have a schematic and be able to integrate it with a tracker on a
single board. Crystal controlled is fine, but I wouldn't mind too much
shelling out $20 for a DDS chip. Ramsey sells a rocket transmitter board,
and that's generally the sort of thing I'm looking for, but it's expensive
and for balloon use I'd want more than 10 mw power.
Scott
N1VG
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