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ZL3AI > APRDIG 10.04.03 09:18l 264 Lines 10095 Bytes #999 (0) @ WW
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Subj: TAPR Digest, Apr 07, 1/2
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To : APRDIG@WW
TAPR APRS Special Interest Group Digest for Monday, April 07, 2003.
1. Mea Culpa: Emergency Error
2. Findu2 Not Updating
3. Re: Findu2 Not Updating
4. Re: Findu2 Not Updating
5. Re: Findu2 Not Updating
6. PCSAT nearing FUll sun
7. Slightly OT: Using VNC with Linux Routers
8. Re: Maritime Mobile Weather Stations
9. TMD700A Intermittent Decode Problem
10. RE: Slightly OT: Using VNC with Linux Routers
11. Slightly OT: Using VNC with Linux Routers
12. Re: R: [amsat-bb] PCSAT nearing FUll sun
13. Re: Slightly OT: Using VNC with Linux Routers
14. Re: Slightly OT: Using VNC with Linux Routers
15. Re: Slightly OT: Using VNC with Linux Routers
16. igate/wx on a laptop, possibilities?
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Subject: Mea Culpa: Emergency Error
From: "John B. Leonard, Jr" <w9jbl@attbi.com>
Date: Mon, 7 Apr 2003 08:56:59 -0500
X-Message-Number: 1
My apologies to everyone for my sending an "Emergency" beacon last nite
about 9PM CDT. It was totally in error.
I had just completed installation of my TTII in my car and was driving
around (to take my 7 y.o. g-daughter home and to show her some ham
radio/APRS) to see how well it worked. But earlier I had programmed the
unit with an emergency beacon to see how it operated and forgot to remove
it.
When I returned home, I re-ran the log on UI-View and saw the "Emergency"
beacon.
What was both embarrasing and heartening was that it worked! I got several
inquiries from some distance from my QTH asking my about my status.
Thanks to everyone who saw it (in Mic-E format, incidently) and responded,
and my sincere apologies for sending that distress message in error. (Byon,
you may wish to consider not allowing "Emergency" beacons in the Primary
setup, but thanks for making a good operating kit, thanks to Roger for
making UI-View, and especially Bob APR for thinking this whole stuff up. To
those who allow gating to the internet, I guess it works as designed, warts
and all).
The unit has been reprogrammed and fixed. Emergency should not show up
again (I hope!).
Sorry again.
73's
Barry Leonard W9JBL
DeKalb Co ARES AEC
DeKalb Co Asst ESDA Coordinator
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Subject: Findu2 Not Updating
From: "Ken Patterson" <kenp@etex.net>
Date: Mon, 7 Apr 2003 14:15:06 -0000
X-Message-Number: 2
Looks like Findu2 is not updating correctly.
See: http://www2.findu.com/cgi-bin/find.cgi?call=N5EQT-1
Findu1 seems to be working without any problems.
http://www1.findu.com/cgi-bin/find.cgi?call=N5EQT-1
de N5EQT
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Subject: Re: Findu2 Not Updating
From: Steve Dimse <k4hg@tapr.org>
Date: Mon, 7 Apr 2003 11:02:50 -0400
X-Message-Number: 3
On 4/7/03 at 2:15 PM kenp@etex.net (Ken Patterson) sent:
>Looks like Findu2 is not updating correctly.
>
>See: http://www2.findu.com/cgi-bin/find.cgi?call=N5EQT-1
>
>Findu1 seems to be working without any problems.
>
>http://www1.findu.com/cgi-bin/find.cgi?call=N5EQT-1
Somebody was screwing with the database directly...should be OK now.
Thanks, Steve
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Subject: Re: Findu2 Not Updating
From: Steve Dimse <k4hg@tapr.org>
Date: Mon, 7 Apr 2003 11:19:00 -0400
X-Message-Number: 4
A clarification...I didn't realize my last was to the whole sig...
On 4/7/03 at 2:15 PM kenp@etex.net (Ken Patterson) sent:
>Looks like Findu2 is not updating correctly.
>
>See: http://www2.findu.com/cgi-bin/find.cgi?call=N5EQT-1
>
>Findu1 seems to be working without any problems.
>
>http://www1.findu.com/cgi-bin/find.cgi?call=N5EQT-1
Looks like someone is using the direct database access in a way that was
killing the server. I have closed the guest account on the server.
Anyone using this feature, this means your stuff is now broken. Please
email me with what you are using it for, sample queries that you are using,
and if you are not the cause of the problem, I'll give you an individual
account.
By using accounts for individual users, in the future I can kill just those
abusing the system.
Sorry for the problem...
Steve K4HG
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Subject: Re: Findu2 Not Updating
From: "Ronald Reams" <wa4mjf@worldnet.att.net>
Date: Mon, 7 Apr 2003 11:24:37 -0400
X-Message-Number: 5
That's FB, Steve, keeps everyone in the loop.
73 de Ronnie
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Subject: PCSAT nearing FUll sun
From: Bob Bruninga <bruninga@usna.edu>
Date: Mon, 7 Apr 2003 14:39:45 -0400 (EDT)
X-Message-Number: 6
PCsat will be back to full ops in 2 days. Yesterday her eclipses were 22
mins, today they are 18, tomorrow they will be 12 and by Wed she will be
in full sun.
After only 1 orbit in full sun she can charge herself out of negative power
budget and night time ops can resume. Last time it lasted 47 days after
full sun. SO, if you dont have a local APRS digi, or are out in the
wilderness, remember that PCSAT overflies everywhere on earth giving you
3000 mile digipeater coverage 6 times a day.
When you see packets with 00111111 on pcsat.aprs.org, then she's back!
de WB4APR,
Naval Academy Satellite Lab
PCsat: http://www.ew.usna.edu/pcsat
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Subject: Slightly OT: Using VNC with Linux Routers
From: "Rich Garcia" <k4gps@arrl.net>
Date: Mon, 7 Apr 2003 16:11:07 -0400
X-Message-Number: 7
Does anyone on the list make use of VNC with a Linux router ? I would like
to control both a APRS station in addition to my EchoLink Conference server
that is located at a seperate location (need 2 seperate IP addresses).
I have it working from the remote location to my home station but I can't
get in from the home to the remote location even though the routers have
been set up identically.
Any help would be appreciated, even the DMZ feature will not do the trick!
Rich K4GPS
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Subject: Re: Maritime Mobile Weather Stations
From: WB4GQK@aol.com
Date: Mon, 7 Apr 2003 16:49:39 EDT
X-Message-Number: 8
Hi all,
Onboard my sailboat LUAN TWO,Which I race often, both the apparent wind and
true wind data is fully displayed via instruments and laptop computer. The
PC runs a Tactical Navigation software program that utilizes wind, GPS,
speed thru the water, as well as a calculating the fastest course to steer
based on Lat/Lon coordinates from the starting point to the destination.
My boat is equipped with a Raymarine Hydraulic Autopilot model ST6001. This
unit contains a Flux Gate Compass (FGC) in order to hold the boat on a
given course. TRUST ME do not rely on FGCs to maintain a FIXED MAGNETIC
BEARING to North when ever the sea state becomes rough. Anything over about
5 feet in a 40ft sailboat will cause the Magnetic Heading to oscillate
10-15 degrees as the boat bounces and falls off waves. The rapid motion of
the boat effects the detection of the magnetic lines of force. Most modern
FGCs are fixed coils on a spider like frame that detects the difference of
the flux sensed by the various coils. When the case is bounced around, so
is the North Magnetic Heading.
The tactical navigation software receives the Wind Speed and Apparent wind
direction from the masthead sensors. It also receives the GPS data as well
as the boat speed thru the water from the speed transducer. The software
computes the True wind direction based on GPS course AND Speed Over the
Ground (SOG). All this is compared to the desired course to the destination.
Also included is the Gulf Stream CURRENTS! The computer computes the best
heading to acheive the fastest passage to the destination. The program also
takes into consideration YOUR CHOICE of the number of TACTS you are willing
to put up with. The software stores the information regards how fast your
boat can sail given any set of wind conditions. all of this data is available
which you can export to any other programn or save to disk. The Navigation
program sends the steering data to the autopilot, and that's how you make
the fastest passage. You just keep the sails trimmed properly.
Finally I would like to tell you that on top of everything going on above,
I used APRS in the Tampa Bay to Isla Mujeres MX race last Apr/May 2002. This
was a 519 mile open water race that required 5 days to make.
My XYL, N4TFP, had to stay home with her mom so I wanted her to know where
I and my 3 crew members were and how we were making out. She had the other
3 wives over every night to see the latest position and short msgs from
each of us. Obviously the WinAPRS prgm provided the speed made good over
the previous hour as well as position. The radio onboard is an ICOM M800
marine SSB that has been opened up for ham use. What you may find
interesting is the following. I set the unproto path to my home base
wb4gqk-1, LUAN TWO was wb4gqk-2. I set the retries to 10 and the TX period
was 1 hour. I set the beam on my home tower to the S.W. for max sensitivity
over the route we were going to take. It worked beautifully APRS transmitted
137 positition rpts; 1/hr the max number of retries was 3! Our 4 mates were
very comforted to be able to see that sailboat icon creeping across the
Gulf of Mexico.
Would it have been possible to also TX the wind information? absolutely!
However there are several points to consider:
1. The Hydraulic Autopilot is a 12 volt power HOG
2. The sensing instruments all required abt 1 amp of 12V
3. The Icom M800 pulled 30 amps on transmission, abt 1/2 on receive
4. We also had to maintain voice contact with race officials (at top of hr)
5. The PC laptop ran 24/5 and used close to 1 amp
6. Navigation lights used 6 amps!
I think you get the picture, BE PREPARED! we ran the 7 KW genset for 30 min
every 3 hours. Of course with 115 VAC the fridge kept our beer cold!
73 de Jim
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