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ZL3AI > APRDIG 22.06.03 08:43l 280 Lines 10074 Bytes #999 (0) @ WW
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To : APRDIG@WW
TAPR APRS Special Interest Group Digest for Wednesday, June 18, 2003.
1. Re: Field Day Water Power
2. Re: Field Day Water Power
3. Re: Field Day Water Power
4. APRS2 Tier 2 Server Network
5. water power
6. findU down time
7. Re: Field Day Water Power
8. Nextel and APRS
9. OT RS headset
10. Re: Nextel and APRS
11. Re: aprssig digest: June 15, 2003
12. Re: aprssig digest: June 15, 2003
13. Re: aprssig digest: June 15, 2003
14. Re: Nextel and APRS
15. Re: RS 5/8 wave mag mount
16. Re: Water Power
17. Re: RS 5/8 wave mag mount
18. N-N protocol question and gating NWS warning questions
19. APRS and MARS
20. Re: Water Power
21. Re: Water Power
22. Re: RS 5/8 wave mag mount
23. RE: N-N protocol question and gating NWS warning questions
24. Re: Water Power
25. Re: RS 5/8 wave mag mount
26. Re: New RINO data.
27. Re: New RINO data.
28. Re: RS 5/8 wave mag mount
29. RE: assilimation complete
30. Re: Field Day Water Power
31. FD Wind Power. The rest of the story...
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Subject: Re: Field Day Water Power
From: Jack Warren <warren@mail-nh.eng.utr.ti.com>
Date: Wed, 18 Jun 2003 07:57:44 -0400
X-Message-Number: 1
WOW!!!
47 messages later and I still don't know who will be the first to hook a
garden hose to the washer outlet hose and prove/disprove the stated desire.
So where does this fit into APRS; TX, RX, TNC, GPS RX, where??
Thanks,
Jack
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Subject: Re: Field Day Water Power
From: "Robert Mitchell / KD4PBC" <aprs@kd4pbc.net>
Date: Wed, 18 Jun 2003 11:40:06 -0400
X-Message-Number: 2
The water hose goes in the RX and comes out the TX.
The water pressure makes the little electrons go round and round.
On a more serious note Bob Do you have any other ideas ?
I would think that the internal friction of the water pump may cause a
lot of loss. I have seen some designs where not only the water flow but
the weight of the water helped improve the output. It used a "cup" type
impeller to catch the flow and add weight to increase the power.
That said I can't find anything on a design like that.
I will keep looking. You may look at an automobile water pump they are
made to move a large volume of water slow. You may be able to get more
oomph from them. The plumbing connections may be a little more
challenging though.
Robert / KD4PBC
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Subject: Re: Field Day Water Power
From: Bob Bruninga <bruninga@usna.edu>
Date: Wed, 18 Jun 2003 11:44:24 -0400 (EDT)
X-Message-Number: 3
On Wed, 18 Jun 2003, Jack Warren wrote:
>47 messages later and I still don't know who will be the first to hook a
>garden hose to the washer outlet hose and prove/disprove the stated desire.
>
>So where does this fit into APRS; TX, RX, TNC, GPS RX, where??
Field Day. Renewable energy power is worth 100 points.
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Subject: APRS2 Tier 2 Server Network
From: "Phil Pacier, AD6NH" <ad6nh@arrl.net>
Date: Wed, 18 Jun 2003 11:4:42
X-Message-Number: 4
There has been many a debate about the tiering of the APRS network, with
equal arguments for either solution. A group of us server sysops have
decided to run with the tiered concept, and thus have organized ourselves
into the APRS2 Tier 2 Server Network. Our concept is to have a group of
APRS servers, using javAPRSSrvr software, operate using standardized port
definitions and similar setups. This way, the end user does not have to be
too concerned about what port gives what feed on what server. To further
aid in the ability to spot the Tier 2 network, we have reserved the domain
aprs2.net for our servers. Currently, there are three Tier 2 servers in
the network:
arizona.aprs2.net (what is now aprswest.net or ahubwest.net
socal.aprs2.net (what is now aprsca.net)
knoxville.aprs2.net (now with East US Feed on 14579) - welcome aboard Ed!
All of these servers offer the 14580 user-defined filter feed, as well as a
limited number of 10152 full-feed connections, regional feeds, and weather
data dumps. We are also working on a webpage at http://www.aprs2.net to
answer more questions about the network and our concept. If you are
interested in creating a server in the Tier 2 Network, please email me and
I will explain further.
Enjoy! -73
Phillip Pacier - AD6NH
socal.aprs2.net
http://www.aprsca.net
http://www.aprs2.net
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Subject: water power
From: Dale Blanchard <wa7ixk@earthlink.net>
Date: Wed, 18 Jun 2003 09:08:48 +0000
X-Message-Number: 5
Harbor Freight has gas and electric powered water pumps. Replacing the
motor with a alternator and a lot of water should give some power.
Plumbing supply places also have just the pumps.
You can try a fountain pump with a DC motor and see what you get out of it.
I have a small vane pump on my solar collector that is magnetic coupled.
A vane pump may be the best for a portable power source if you have
stand pipe high and big enough. A vane pump is just an enclosed water
wheel and quite water efficient and much lower speed.
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Subject: findU down time
From: "Steve Dimse" <k4hg@tapr.org>
Date: Wed, 18 Jun 2003 16:16:42 +0000
X-Message-Number: 6
There is some repairs going on at findU's co-lo site, and it is expected
the box will be down from 3PM to 11PM EDT. I've moved the name for
www.findu.com to point at the backup server, and synced up the web sites,
so for most people there should be no difference noted.
The only problem is that the TTL for findU had be set too high, so some of
you may not seee the name change in time, you can use www2.findu.com to
force yourself to the backup server.
Email services involving aprs.net and findu.com will be down for the
duration.
Steve K4HG
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Subject: Re: Field Day Water Power
From: psschwarz@kellnet.com
Date: Wed, 18 Jun 2003 16:55:13 GMT
X-Message-Number: 7
I already deleted the original message. Has minimum water flow needed been
discussed or is this the issue altogether (I forgettededed :-) )? This is an
interesting discussion. Maybe some sort of device can be produced for kayaks
for an energy source to power little handhelds while paddling lakes and
rivers. So this can go above and beyond field day and general discussion.
Patrick...KB8RTZ...
Bob Bruninga writes:
>Field Day. Renewable energy power is worth 100 points.
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Subject: Nextel and APRS
From: "Robert Mitchell / KD4PBC" <aprs@kd4pbc.net>
Date: Wed, 18 Jun 2003 13:17:58 -0400
X-Message-Number: 8
Ok this is the 3rd time I have tried to post this.
Lets hope it works !
I have APRS in one of my cars but not the other.
My new Nextel Phone an I58sr
Specs are here
http://www.idenstore.com/dr/v2/ec_MAIN.Entry10?V1=468591&PN=1&SP=10023&x
id=39192&DSP=&CUR=840&PGRP=0&CACHE_ID=0
Has anyone written a java for this type of phone so that when I'm in my
other truck or just wondering around it could send APRS updates to an IGATE?
And if so how would you get it to send your position to the local 144.39
I guess that you could set your call sign to gate to RF ?
This would be a cool thing.
Just an Idea there are a lot of phones out there.
Robert / KD4PBC
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Subject: Re: Nextel and APRS
From: Dennis Hudson <n2lbt@n2lbt.com>
Date: Wed, 18 Jun 2003 14:12:47 -0400
X-Message-Number: 10
Awesome, an APRS related message ;)
There is some chit chat going around about this for some time. I have
not heard of any progress yet. As far as I know you can sign up to be a
developer on the iden site which will allow you to directly access the
packet stream and gps information within the Java environment.
I've been using my i88 for a few months now as my GPS on the D700 and I
love it. I just put the phone in the cradle and it says "continue NMEA
ouput?" and I say yes and GPS sentences come spurting out the serial
port usually in just a few seconds.
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Subject: Re: aprssig digest: June 15, 2003
From: Henk de Groot <henk.de.groot@hetnet.nl>
Date: Wed, 18 Jun 2003 18:12:17 +0200
X-Message-Number: 11
Hello Demetre,
At 21:13 17-6-03 +0300, Demetre Valaris wrote:
>I do get a few half/broken packets with my TH-D7 even with a CTCSS setting of
>136.5 HZ but this is not the same DIGIs with the badly filtered PSUs but some
>kind of breakthrough, maybe cross modulation.
>
>Have you noticed a similar behaviour with your TH-D7 Henk???
I noticed that sometimes CTCSS is a bit late to kick in. So the TH-D7
starts passing audio to the speaker and just after that CTCSS starts
squelching it. I have not tested this extensively, but on my TH-D7 it looks
like it occurs more often on the B band; when I use band A it hardly ever
happens. If you use APRS on VHF you may try to swap the D channel to band A
and see if that makes a difference. If you already use band A you could try
band B.
Next time when I visit the area where I had the problem I will experiment
with 100 Hz and 136.5 Hz to see what happens. I think 136.5 Hz is a good
choice, its a pitty that it is not a nice round figure like 100 Hz. I
wonder if 88.5 Hz would work also. It is also not a nice round figure, but
it is Kenwood's default CTCSS frequency and therefore most of the time
already selected when switching CTCSS on. 77.0 Hz is also an easy to
remember frequency that may also work (73 would have been nice too, but its
not there :-) ).
Kind regards,
Henk.
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