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ZL3AI > APRDIG 26.10.03 15:43l 261 Lines 9503 Bytes #999 (0) @ WW
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Subj: TAPR Digest, Oct 24, 3/4
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From: ZL3AI@ZL3VML.#80.NZL.OC
To : APRDIG@WW
Subject: Re: 48V Powerpoles?
From: "Mark Fellhauer" <sparkfel@qwest.net>
Date: Fri, 24 Oct 2003 11:35:25 -0700
X-Message-Number: 20
At 11:19 AM 10/24/2003, Sadowski, Allan wrote:
>SO... our existing radio equipment will continue to work with APRS (have
>to keep the thread APRS related ;)
But we have to take into consideration the ramifications of the 42v
movement by manufacturers. I'm not too worried that my current APRS setup
will cause interference with my hydraulic engine-driven power steering or
power brakes, but when I buy a car with electric P/S & P/B what will happen
when I transmit? Will my car turn to the right every time I beacon a
position? :)
Mark
KC7BXS
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Subject: Re: 48V Powerpoles?
From: <BobDonnell@arkalmus.com>
Date: Fri, 24 Oct 2003 12:36:47 -0700
X-Message-Number: 21
One of the other things that's happening in the automotive industry is
the acceptance of RF susceptibility specifications - or at least testing
for that susceptibility. I work for a company that manufactures
broadband RF power amplifiers. We have built some 2 kW 80-1000 MHz
amplifiers, used by one of the major auto makers, in their RF
susceptibility test facility. Our parent company has been doing the
same for the 100 kHz-100 MHz frequency range - at 4 kW, if I recall
right. So with any luck, RF susceptibility will become less of an issue
as time goes on.
I know that when I use my front-bumper antenna mount on 28, 50, and 144
MHz, I can cause the vehicle electronics to fail to deliver spark or
fuel (hard to tell, from inside the car) to the engine. I discovered
this by connecting the APRS rig to one of the big Hustler colinear
antennas, screwed into that bumper-mount. It took two transmissions
(one while in motion) before I figured out that was the cause.
Fortunately the transmission was short, and I could park and change
antenna connections around again before I beaconed again.
Also, hopefully, RF emissions from all those neat control systems will
also go down too. But that might be hoping for too much!
73, Bob, KD7NM
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Subject: Re: 48V Powerpoles?
From: "Scott Miller" <scott@opentrac.org>
Date: Fri, 24 Oct 2003 12:40:07 -0700
X-Message-Number: 22
>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.
Isn't that what the Honda VTEC is?
Scott
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Subject: Re: A Low-Tech APRSteward Proposal [was: SMART digi paths]
From: <BobDonnell@arkalmus.com>
Date: Fri, 24 Oct 2003 12:46:55 -0700
X-Message-Number: 23
OK, but what about those mobile users that have no APRS messaging
capability? Education is a good thing - but those without display
capability can't be educated this way. I suspect we'll have to take
both approaches - education to provide path recommendations, and path
management for those that don't get or take the hint.
73, Bob, KD7NM
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Subject: Re: 48V Powerpoles?
From: Dave VanHorn <dvanhorn@cedar.net>
Date: Fri, 24 Oct 2003 14:09:05 -0500
X-Message-Number: 24
At 11:35 AM 10/24/2003 -0700, Mark Fellhauer wrote:
>At 11:19 AM 10/24/2003, Sadowski, Allan wrote:
>
>>SO... our existing radio equipment will continue to work with APRS (have
>>to keep the thread APRS related ;)
>
>But we have to take into consideration the ramifications of the 42v
>movement by manufacturers. I'm not too worried that my current APRS setup
>will cause interference with my hydraulic engine-driven power steering or
>power brakes, but when I buy a car with electric P/S & P/B what will
>happen when I transmit? Will my car turn to the right every time I beacon
>a position? :)
The 42/48V supply will make that kW tracker amp a practical thing. :)
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Subject: Re: 48V Powerpoles?
From: "Ken Cechura" <kcechura@umr.edu>
Date: Fri, 24 Oct 2003 14:50:57 -0500
X-Message-Number: 25
There's a Cadillac down the hall that is being used for testing... The EE
dept is trying to make the car stop by just hitting it with different
frequencies and power levels of RF....
73
Ken, KC9UMR
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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 15:56:41 -0400
X-Message-Number: 26
Ah yes, We completely agree that we have the ability in place to educate
our users. I find many APRS users don't follow this Sig and use the UNPROTO
that someone told them would work. It would be much better to broadcast the
best settings rather than spread the word by word of mouth which gets
twisted along the way. Wes and his crew in South Carolina has just
completed a series of seminars to spread the word but you can't reach
everyone that way either.
Dave
W4VOR
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Subject: WINAPRS Problem
From: "Dave Sloan" <desloan@earthlink.net>
Date: Fri, 24 Oct 2003 15:40:20 -0600
X-Message-Number: 27
My windows 98 system froze (I know what is new about that), and I had to
reboot it today. Now I can see the radio is receiving incoming packets and
the TNC shows that it is receiving them. But, they don't show up on my map
nor display on the bottom window as having been received. I have
re-initialized the TNC, rebooted the computer, and checked the settings in
WinAprs. What am I overlooking? If I connect to the internet I get stations
displayed on my map. Just do not display any station that the radio is
receiving from RF. Any and all comments/ideas are welcome!
Tnx & 73,
Dave N0EOP
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Subject: RE: WINAPRS Problem [ADDITIONAL INFO]
From: "Dave Sloan" <desloan@earthlink.net>
Date: Fri, 24 Oct 2003 15:58:21 -0600
X-Message-Number: 28
Some additional info. This system has been running for several years and
except for rebooting the computer I have had no problems. The computer is a
P450 with win98SE. WinAprs is ver 2.6.1 and the TNC is a KAM Plus.
Tnx & 73,
Dave N0EOP
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Subject: WXTrak
From: "Scott Miller" <scott@opentrac.org>
Date: Fri, 24 Oct 2003 15:02:48 -0700
X-Message-Number: 29
Anyone used the Byonics WXTrak? I just got my parents a WM918 weather
station and I'd like them to be able to put it on APRS. I'm using the
uWeather board myself for a 1-wire station, but really the hardware is
overkill and the firmware's not configurable enough.
Scott
N1VG
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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 18:15:23 -0400
X-Message-Number: 30
David Odom wrote:
>Ah yes, We completely agree that we have the ability in place to educate
>our users. I find many APRS users don't follow this Sig and use the UNPROTO
>that someone told them would work.
Absolutly, Dave. The beauty of the APRSteward system is that the correct
UNPROTO for any given LAN is sent as a BLN: every 15 minutes 24/7/365. It
is only a matter of time before everyone sees them and abides. Even the
"dumb trackers" are being watched by someone. That someone will be seeing
the BLN's too.
There are many ways to spread the word. APRSteward is the least costly,
most repetative and easiest to implement. It may even whiten teeth and
freashen breath. :)
Ev, W2EV
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Subject: APRSdigi for DOS
From: "Ev Tupis (W2EV)" <w2ev@arrl.net>
Date: Fri, 24 Oct 2003 18:26:50 -0400
X-Message-Number: 31
Would the keeper of the sourcecode please contact me off-list?
Ev, W2EV
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Subject: Re: A Low-Tech APRSteward Proposal [was: SMART digi paths]
From: Bob Bruninga <bruninga@usna.edu>
Date: Fri, 24 Oct 2003 18:35:28 -0400 (EDT)
X-Message-Number: 32
On Fri, 24 Oct 2003, Ev Tupis (W2EV) wrote:
>There are many ways to spread the word. APRSteward is the least costly,
>most repetative and easiest to implement. It may even whiten teeth and
>freashen breath. :)
And it creates the most unnecessary QRM on the already overloaded channel.
I am Still opposed to it. I do support an automatic program that
generates EMAIL to offenders, but not over the air.
Bob
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Subject: Re: 48V Powerpoles?
From: "Doug Younker" <dougy@ruraltel.net>
Date: Fri, 24 Oct 2003 16:57:10 -0500
X-Message-Number: 33
I'm no engineer, but my guess is that those who are in charge of designing
automotive electrical systems will determine how high a voltage can be
employed with out appreciably altering the current auto manufacturing
process, from that point the decision may be arbitrary. In the event the
lead acid battery remains the norm ,2V per cell would be kept in mind, but
is it written a battery has to contain an equal number of cells?--73
Doug, N0LKK
dougy@ruraltel.net
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