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ZL3AI > APRDIG 26.10.03 15:37l 291 Lines 10045 Bytes #999 (0) @ WW
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Subj: TAPR Digest, Oct 24, 2/4
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Sent: 031026/1238Z @:ZL3VML.#80.NZL.OC #:11287 [Chch-NZ] FBB7.00i $:2208-ZL3AI
From: ZL3AI@ZL3VML.#80.NZL.OC
To : APRDIG@WW
Subject: REF: nc4cv
From: "Matthew Stennett" <wa4tkg@iwon.com>
Date: Fri, 24 Oct 2003 09:40:39 -0400 (EDT)
X-Message-Number: 8
-This guy runs a BBS of sorts, on 7.1Mhz.
Maybe everyone within EAR SHOT/ with a concern,
should drop by and LEAVE him a NOTE:
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Subject: RE: [amsat-bb] AO-40 data mode... APRS???
From: Bob Bruninga <bruninga@usna.edu>
Date: Fri, 24 Oct 2003 09:52:33 -0400 (EDT)
X-Message-Number: 9
On Thu, 23 Oct 2003, Gabriel Medinas wrote:
>Hello friends,
>I also want to probe a APRS on AO-40....Is possible doing that, Bob Bruninga
>or AO-40 team please let me now...Thanks.
>
>73 de Gab, YV5KXE (APRS IGate)
>Amsat-YV Secretary
>www.amsat-yv.org
>www.yv5kxe.org
Anyone want to play via AO-40? Its in view for up to 8 hours at a time
or more...
Bob
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Subject: Re: SMART digi paths
From: "Ev Tupis (W2EV)" <w2ev@arrl.net>
Date: Fri, 24 Oct 2003 10:12:04 -0400
X-Message-Number: 10
Bob Bruninga wrote:
>>PS...What is "NOAUTO" an abbreviation for?
>
>It measn do nothing automatically to this path.
May I sgugest taht the alais of "LOCKED" is more dsercpitvee of the aciton?
It smees mroe intuitive, epsecailly snice it will porbably be fuond in the
vrey UNPROTO that one hopes to remian "locked".
WB4APR>APRS,RELAY,WIDE15-15,LOCKED:...
(now THAT path would sure get noticed, huh?)
<giggle>
Ev, W2EV
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Subject: RE: OpenTracker PCB run
From: Dave VanHorn <dvanhorn@cedar.net>
Date: Fri, 24 Oct 2003 09:50:56 -0500
X-Message-Number: 11
At 01:19 PM 10/23/2003 -0700, Scott Miller wrote:
>>You CAN do a bytecode interpreter, running on a token language stored in
>>EE, which you can modify at run-time.
>
>Interesting... is that how the Basic Stamp works?
I presume so.
In my system, I make a list of what commands suit the application.
Then I add whatever flow control is needed, like skip +/- N commands, or
skip if input pin active, etc.
With the list, I try to compress it to a binary number, like 16 or 32 commands.
Each command takes the form of <CMD><PARM1>..<PARMn>
Where CMD is the command byte, and PARM is an optional parameter byte.
Some commands have no parameters, they are immediate mode.
The tricky bit is the engine.
You always start at zero, and that is a command.
After a reset, the first action is always to run the first command.
That command knows how many parms it has, and it does it's thing, and
leaves you pointing at the next command.
The fun comes in when you need to skip commands.
What I do is maintain a command counter byte, and a "cmd wanted" byte,
which I add or sub to, to point to the next command.
Say I want to skip -5 (the hardest case)
The skip command sets a flag that tells the commands to "Scan" rather than
execute.
You then start at zero, with each command scanning it's parms, instead of
acting on them, until the cmd counter equals the cmd wanted counter, then
you reset the scan flag, and the next command, which is the one you wanted,
is executed.
I have this all coded for the AVR, and I have a version that's just the
basic structure, and a few example commands already coded, which I give out
as open source.
If you want to see an earlier project that I worked on like this, it's at
http://www.verifone.com/support/documents/
The TCL programmer's manual is the main doc.
This is a Z-80 system, which keeps everything in RAM, and the interpreter
is in a 32k Rom, all coded in assembler.
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Subject: Re: OpenTracker PCB run
From: Dave VanHorn <dvanhorn@cedar.net>
Date: Fri, 24 Oct 2003 09:59:03 -0500
X-Message-Number: 12
At 08:07 AM 10/24/2003 +0930, Andrew McDade wrote:
>Gday,
>
>>
>>An AVR will do that. Mega 8 or above.
>>
>>Otherwise, I'm not aware of a PIC that can modify it's code space.
>>
>A 16F876 , 16F877 can modify their own code space , just to name 2 of many.
There ya go. I sold my pic tools a long time ago, after doing a couple of
projects with the AVR.
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Subject: RE: OpenTracker
From: Dave VanHorn <dvanhorn@cedar.net>
Date: Fri, 24 Oct 2003 10:00:26 -0500
X-Message-Number: 13
>In any case, I don't like the PIC architecture.
Pic "architecture", military intelligence...
What a procrustean little box those things are.
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Subject: Re: Solar Wx
From: Richard Garcia <k4gps@bellsouth.net>
Date: 24 Oct 2003 11:48:54 -0400
X-Message-Number: 14
I worked 3rd shift today and saw the report on the news before I left
the house at 23:30. Interesting thing is that when I got in the truck it
took a very long time for me to get a lock on my GPS 5. The antenna is a
26db gain NMO mount on the roof with low loss cable and I normally get
10 sats within seconds. Last night it took about 4 minutes and I only
locked on 4 sats, later on at about 02:00 I got 6 and by 05:00 I had 9.
I don't know if it was the flare but I am wondering if the DOD
re-positioned the birds to avoid any possible damage from the storm. I
am guessing that the data in the GPS would have been in error from
earlyer in the day and that was the cause of the slow lock and even
slower search of the balance of the birds.
Any other night crawlers out there that saw the same thing ??
Rich
On Fri, 2003-10-24 at 09:16, dale huguley wrote:
>Hi All-
> From the Space Environment Center on October 21st:
>**** INTENSE ACTIVE REGIONS EMERGE ON SUN ****
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Subject: Re: A Low-Tech APRSteward Proposal [was: SMART digi paths]
From: "David Odom" <dodom@mindspring.com>
Date: Fri, 24 Oct 2003 11:57:46 -0400
X-Message-Number: 15
Ev,
I agree for fixed stations but for mobiles I think it promotes different
UNPROTO settings for each LAN. That is unacceptable for those of us who
travel extensively. We need a single setting that will be most likely to
hit an IGATE. Check W4VOR-9 track for last two weeks and I will leave for
home tomorrow. I used Relay Wide2-2.
Dave
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Subject: Re: Solar Wx
From: "Sadowski, Allan" <allan.sadowski@ncshp.org>
Date: Fri, 24 Oct 2003 13:09:27 -0400
X-Message-Number: 16
No way I know to do any sort of repo of these birds... they are going
to have to deal with it just like almost every other satellite in
existence...
Gerry has forgottem more about these platforms than most of us will ever
know...
A significant reposition of any satellite is rarely done once it
achieves it's operational orbit... station keeping on geosynchronous
birds is a different matter... but this often relatively small changes -
unless the bird is to replace a "dead" one... and those movements
typically take many days...
ALOHA
AH6LS
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Subject: Re: A Low-Tech APRSteward Proposal [was: SMART digi paths]
From: "Ev Tupis (W2EV)" <w2ev@arrl.net>
Date: Fri, 24 Oct 2003 13:54:13 -0400
X-Message-Number: 17
David Odom wrote:
>We need a single setting that will be most likely to hit an IGATE.
Absolutly. We are in complete agreement. The "details" of what the
APRSteward displays can be argued until the cows come home.
The point of new thread was that we have the ability to educate our users
right at our fingertips. We're simply not taking advantage of it.
Ev, W2EV
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Subject: Re: 48V Powerpoles?
From: "Mark Fellhauer" <sparkfel@qwest.net>
Date: Fri, 24 Oct 2003 10:55:34 -0700
X-Message-Number: 18
>Dale Blanchard <wa7ixk@arrl.net> wrote:
>>I just don't understand why go to 42 volts
>
>Really it is 36v.
>The 42v comes from the 14v fully charged voltage of a 12v battery.
>3x12=36 ; 3x14=42
At 04:15 AM 10/24/2003, Laurie - g6isy wrote:
>The reason for going to a higher voltage is to reduce the current that is
>being drawn and hence reduce the losses (and potential for fire) in the
>vehicle wiring harness.
And in preparation to offload many components currently engine driven to
electric power. That is: power steering, brakes, water pump, etc. There
are already a handful of cars using electric power steering. Electric
water pumps use about 1/6 the power required for a current engine/belt
driven counterparts and could be programmed to post-cool engines
(especially turbocharged ones) after shut down. This will be important in
cars that have a stoplight shutdown feature. Also 42v will allow cars to
have electrically controlled variable valve timing. This should eek out a
little more MPG.
Mark
KC7BXS
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Subject: Re: 48V Powerpoles?
From: "Sadowski, Allan" <allan.sadowski@ncshp.org>
Date: Fri, 24 Oct 2003 14:19:36 -0400
X-Message-Number: 19
I read that a major factor is that the starter and generator/alternator
will be the same device... with 42V systems that is.... and then it's an
easy leap to the "starter" mode actually boosting power under hard
acceleration....
Interestingly enough... everyone says 12V and 42 V.... but if I'm not
mistaken... the typical battery is more often measured to be around
13.8V... so if the 43V system scales similarly... ( (13.8/12) * 42V) =
48.3 V.... so in reality the measured voltage might actually be more
like 48V ?????
All that being said... I also read that it's going to be a decade at
least that the new vehicles maintain a 12V (13.8V?) accessory feed... to
accomodate lots of the existing 12V equipment in the system (radios)...
SO... our existing radio equipment will continue to work with APRS (have
to keep the thread APRS related ;)
ALOHA
AH6LS
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