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ZL3AI > APRDIG 20.03.04 13:12l 266 Lines 9236 Bytes #999 (0) @ WW
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Subj: TAPR Digest, Mar 16, 1/1
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From: ZL3AI@ZL3VML.#80.NZL.OC
To : APRDIG@WW
TAPR APRS Special Interest Group Digest for Tuesday, March 16, 2004.
1. Re: aprssig digest: March 15, 2004
2. Re: Question for the group... Solid wire vs Stranded
3. Re: Transit of Venus on APRS
4. Weather data for k4rok-10
5. Re: Weather data for k4rok-10
6. help with laptop display
7. Re: help with laptop display
8. Inet to RF to Inet?
9. Re: help with laptop display
10. RE: Inet to RF to Inet?
11. Re: help with laptop display
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Subject: Re: aprssig digest: March 15, 2004
From: "Todd Springer" <kg6jwh@mercednet.com>
Date: Mon, 15 Mar 2004 20:57:49 -0800
X-Message-Number: 1
My Email Address has changed to k6tjs@mercednet.com
please update your records Thank you Todd Springer
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Subject: Re: Question for the group... Solid wire vs Stranded
From: "John Langtry, VE3NEC" <ve3nec@sympatico.ca>
Date: Tue, 16 Mar 2004 00:04:37 -0500
X-Message-Number: 2
Right you are, Daron,
I should have mentioned that, altought, I tought, at the time it "went with
out saying", on the above topic.
Thanks for the clarification for the gang.
vy 73 de John VE3NEC
905-873-8715
P.S. The "kids" came today to wire me up to the "Gig-E"; the cable from the
edge switch to the jack in my office is solid wire. (CAT 6, I think, no
time to check.) But from that jack to my computer, is stranded, about 2 M
(about 6 feet long).
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Subject: Re: Transit of Venus on APRS
From: "Mike Yetsko" <myetsko@insydesw.com>
Date: Tue, 16 Mar 2004 04:34:49 -0500
X-Message-Number: 3
>Somewhere through the links that Bob gave I found the web site for this
> http://www.solarscope.org/
>It is $70USD. Pricey for a piece of cardboard. Looks like it is
>basically a pinhole and a mirror.
>
>Derek
>KE6JTP
That 'tube' looks like a multi-lens arrangement, probably two. But yeah,
the rest is a mirror and cardboard.
If you could figure out what lenses to use, it shouldn't be too hard to
copy and fabricate your own.
For the mirror, I wonder if it's front surface or just a regular glass
back-surface mirror?
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Subject: Weather data for k4rok-10
From: "John Johnson" <ke4tzn@cox.net>
Date: Tue, 16 Mar 2004 11:52:46
X-Message-Number: 4
I need Help!!!
The local weather digi k4rok-10 is sending out weather data, I can see the
correct data on RF and the aprs florida page but findu is not getting the
data? Can anybody help?????
----------------------------------------------------------------------
Subject: Re: Weather data for k4rok-10
From: Steve Dimse <k4hg@tapr.org>
Date: Tue, 16 Mar 2004 13:29:21 -0500
X-Message-Number: 5
On 3/16/04 at 11:52 AM John Johnson <ke4tzn@cox.net> sent:
>I need Help!!!
>
>The local weather digi k4rok-10 is sending out weather data, I can see the
>correct data on RF and the aprs florida page but findu is not getting the
>data? Can anybody help?????
It should be OK now. You are using an older Peet that sends out a shorter
data string, and you recently changed from Data Logger (!!) to Packet
($ULTW) as your format, the parser was not correctly picking up the shorter
ULTW, I have fixed this.
Note that this format is not preferred in most situations, as the data is
only sent out every 5 minutes. This should only be used when the TNC is in
converse mode, so the packet is sent out immediately upon receipt by the
TNC. The problem with using converse mode in the TNC is that on power up
TNCs go to command made, so no data will be transmitted until the TNC is
placed in converse mode. I do seem to recall some TNC's might have a
parameter that causes the TNC to go to converse mode on power-up, but
unless you have this, and are using this, I'd recommend against it.
If you are using this in the more normal GPS mode of the TNC, where you
have set GPSHEAD to "$ULTW", you are needlessly increasing the latency of
the data. The ULTW packet is only sent once every 5 minutes from the U2k to
the TNC...each time the TNC sees a packet starting with $ULTW it stores it
in a buffer...when the timers say it ready to transmit, it is the last
packet in that buffer which gets transmitted. With ULTW, the packet could
be 5 minutes old at the time it gets transmitted. On the other hand, !! is
sent to the TNC every three seconds, the data will only be 3 seconds old
max.
Steve K4HG
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Subject: help with laptop display
From: "Joe Della Barba" <joe@dellabarba.com>
Date: Tue, 16 Mar 2004 18:59:21 -0500
X-Message-Number: 6
How hard is it to "remote" a dispaly from the laptop? Is it possible to
extend the cable?
Has anyone tried this? Is it possible to turn a laptop screen into an LCD
monitor?
Thanks,
Joe
73 DE N3HGB
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Subject: Re: help with laptop display
From: "Richard Amirault" <ramirault@erols.com>
Date: Tue, 16 Mar 2004 20:27:38 -0500
X-Message-Number: 7
>How hard is it to "remote" a dispaly from the laptop? Is it possible to
>extend the cable?
I'm not sure what you're asking. Many laptops have a video out connector the
same as a full sized computer that you can plug a 'regular' monitor into.
>Has anyone tried this? Is it possible to turn a laptop screen into an LCD
>monitor?
And by this do you mean you want to use the LCD screen on your laptop to
view an external video source, like a DVD player, or VCR, or closed circuit
camera?
Richard Amirault N1JDU Boston,
MA, USA
www.erols.com/ramirault "Go Fly A Kite"
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Subject: Inet to RF to Inet?
From: Robbie <mwrobertson@comcast.net>
Date: Tue, 16 Mar 2004 20:12:09 -0600
X-Message-Number: 8
Hi,
I am experimenting with I-Gating "a" local friend on a business trip up
into Wisconsin. I am using a filtered aprsservr and b/myfriend.. This
works perfectly, rf stations are seeing me I-Gate myfriend.
Now the question, why would another I-Gate put myfriend back onto the IS
as indicated by Findu with the TCPIP,wa9inf*,qAS,igate ?
Am _I_ the one causeing this, or is this allowed by the IS system?
Hopeing to learn,
Robbie
----------------------------------------------------------------------
Subject: Re: help with laptop display
From: "Joe Della Barba" <joe@dellabarba.com>
Date: Tue, 16 Mar 2004 21:44:06 -0500
X-Message-Number: 9
I am trying to do two different things:
1 - take apart a laptop and mount the display separate from the rest of it
by a few feet. I know I could just cough up some $$$ and buy an LCD monitor
and plug it in the VGA port, but I already have the laptop and the display
size is perfect.
2 - I may end up with an extra laptop missing some parts. Is there any way
to use the display as anything other than a replacement in another laptop.
3 - I have tried the TV out and the quality is quite low.
Thanks,
Joe
73 de N3HGB
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Subject: RE: Inet to RF to Inet?
From: "AE5PL Lists" <HamLists@ametx.com>
Date: Tue, 16 Mar 2004 20:56:01 -0600
X-Message-Number: 10
Older IGate software gated all packets back to the Internet. This was
discussed at length over the past couple of years. Basically, what was
determined was the following:
Third-party packets with TCPIP or TCPXX in the third-party header should
not be gated back to the Internet. (It must be assumed that TCPXX
packets could be gated to RF, though it shouldn't happen.) If the
software is not "smart enough" to monitor for TCPIP and TCPXX, then all
third-party packets should not be gated to APRS-IS.
Generic queries (data type ?) are for "local" use only and should not be
gated to the Internet. This does not preclude generic queries being
generated by a directly attached client station.
I would guess that the IGate gating the packets back to the Internet is
using older software.
73,
Pete Loveall AE5PL
pete@ae5pl.net
----------------------------------------------------------------------
Subject: Re: help with laptop display
From: "Mike Yetsko" <myetsko@insydesw.com>
Date: Tue, 16 Mar 2004 21:51:32 -0500
X-Message-Number: 11
In a word? No! At least not for the average person.
Problem is laptops do NOT feed video in any form you could ever
reasonably home to intercept from the motherboard to the display.
You might be able to extend it a few inches without degrading the
quality. Maybe even a foot or so. But I'll lay even odds you'll have
lots of problems. Besides, have you ever taken apart a laptop and
LOOKED at the bundle of wires (or the density of the flexiboard
traces) that are required to get the signals to the display?
Yes, it can be done. I've had 'plywood monsters' that were laptop
prototypes that had everything 'spread out', but they ain't pretty.
And it wouldn't be the kind of thing you could do and undo easily.
The VGA output that you get OUT of a laptop is specially generated
just for that purpose.
---
END OF DIGEST
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