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ZL3AI > APRDIG 21.06.03 19:53l 268 Lines 9393 Bytes #999 (0) @ WW
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From: ZL3AI@ZL3VML.#80.NZL.OC
To : APRDIG@WW
TAPR APRS Special Interest Group Digest for Monday, June 16, 2003.
1. Re: Weather Object ?
2. Re: Weather Object ?
3. Re: PIC accessory for Mobile APRS
4. Field Day Water Power
5. Re: Digis and UI-digis
6. Re: Field Day Water Power
7. Re: Field Day Water Power
8. Re: Field Day Water Power
9. Re: import raw data
10. Re: Field Day Water Power
11. Re: import raw data
12. Re: import raw data
13. Re: import raw data
14. Re: Field Day Water Power
15. Re: Field Day Water Power
16. Re: Field Day Water Power
17. Re: Field Day Water Power
18. Micro-hydro for APRS / Field Day
19. Re: Field Day Water Power
20. Garmin GPS/FRS RINO Decoding
21. Re: Field Day Water Power
22. Visiting UK- on Voice Alert
23. assilimation complete
24. RELEASE: xastir 1.2.0 - Stable
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Subject: Re: Weather Object ?
From: "Dave Sloan" <desloan@earthlink.net>
Date: Mon, 16 Jun 2003 00:43:45 -0600
X-Message-Number: 1
Sorry,
I KNOW better! I am running WinAPRS V2.6.1 with a KAM + for the TNC. I
was watching the objects on my map and 2 of them tracked as I had entered
them and the other two were stationary. Why? I looked at the way I entered
the 4 objects and couldn't see any difference. The main reason I was trying
this is that we do not have an I-Gate station in the area to post NWS
watches and Warnings. The storms I was posting were Supper cells that NWS
Pueblo had paged out as Watches and had also activated our local Skywarn
group. So, I wasn't just posting a storm to see what it would do.
In November I'll be giving a presentation to the local RACES group (first
time they have shown any interest in APRS). Currently neither the local ARES
(180 members at last count nor the RACES (40-45 members) have ever used
APRS. We also have a large S&R group that is very active and they have never
used APRS either. Currently one of the things that I plan to demo for RACES
is how to place an object on the map and to give it speed and direction.
Tnx & 73,
Dave N0EOP
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Subject: Re: Weather Object ?
From: KC7ZRU - Tate <kc7zru@arrl.net>
Date: Mon, 16 Jun 2003 01:02:48 -0600
X-Message-Number: 2
What with all the APRSers, fixed stations and excellent digis you all
have down there in the Co Springs and Pueblo area - sounds like it's
time for everyone to get together, sit down over a cup o joe and do some
infrastructure deployment. I gotta admit, with the kind of activity I
see there - I'm way surprised you all don't have an effective I-gate yet.
good luck!
73
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Subject: Re: PIC accessory for Mobile APRS
From: "Andrew McDade" <amcdade@senet.com.au>
Date: Mon, 16 Jun 2003 18:47:27 +0930
X-Message-Number: 3
I probably didnt explain myself fully. Is there a D700 command that can be
sent to the serial port on the D700, which in turn returns this stations
current positon data back out to the serial port. ie. a way to simply aquire
the stations current postion via the kenwoods commands rather than aquiring
position information directly from the GPS.
If this were possible, it would simplify cabling somewhat.
73 .. Andrew
----- Original Message -----
From: "Wes Johnston" <wes@johnston.net>
To: "Andrew McDade" <amcdade@senet.com.au>; "TAPR APRS Special Interest
Group" <aprssig@lists.tapr.org>
Sent: Monday, June 16, 2003 8:22 AM
Subject: Re: [aprssig] Re: PIC accessory for Mobile APRS
>just command the d700 (assuming it's already in APRS mode) to BCN 0 <pause
>100ms> BCN 1 . It'll beacon it's posit within a second of that.
>
>Wes
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Subject: Field Day Water Power
From: Bob Bruninga <bruninga@usna.edu>
Date: Mon, 16 Jun 2003 10:08:29 -0400 (EDT)
X-Message-Number: 4
I always dream of water power while hiking with the kids and stumbling over
waterfalls. What a neat Field Day Location.
But alas, these locations are always FAR from my area and each would
require a unique engineering solution to get the water flowing over the dam
or under it into a turbine or paddle wheel. Fun to dream about designs,
but nothing I could do since I was not a local in the area.
But Yesterday I found a back woods dam in a local state park only 15
minutes from home with at least a 15 foot drop. AND I realized I could use
a 50' length of light-weight sump-pump hose to siphon water over the dam
and that such an arrangement would be universal! It would work ANYWHERE I
could find water at height.
Now I have my eyes pealed looking for an old washing machine in a dump that
I can take the water pump out of and experiment with as a turbine. The way
I figure it, if I can get 16 gallons per minute through the hose at 15'
drop, Ill get about 10 Watts of power (30% conversion efficiency).
The good news is that it will be easy to test at home. Just fill a 5
gallon bucket on the roof with a garden hose and see what kind of head will
result in what rate of flow over what length of hose..
10W may not sound like much, but compared to solar, it is 10 Watts for 24
hours a day, not just for 6 hours of good weather.
Calculations:?
4 Gallons in 15 seconds = 16 GPM
1 Gallon = 3.5 Kg or about 1 kg/sec
With gravity is about 10 Newtons/Sec
Over 15' (3m) results in about 30 Watts?
at 30% efficiency results in about 10 W?
The question will be how well suited the pressure and flow will be to
running the water pump backwards...?
Has anyone else played with this?
Bob, WB4APR
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Subject: Re: Digis and UI-digis
From: "Neville A. Cross" <yn1ncv@arrl.net>
Date: Mon, 16 Jun 2003 08:11:04 -0600
X-Message-Number: 5
Hello,
Now I have some material to read and apply. Thanks very much to:
Stephen H. Smith WA8LMF
Bob Bruninga WB4APR
I really appreciated your fast response
Neville A. Cross
YN1NCV
Managua, Nicaragua
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Subject: Re: Field Day Water Power
From: "Doug Younker" <dougy@ruraltel.net>
Date: Mon, 16 Jun 2003 10:50:33 -0500
X-Message-Number: 6
----- Original Message -----
From: "Bob Bruninga" <bruninga@usna.edu>
To: "TAPR APRS Special Interest Group" <aprssig@lists.tapr.org>
Sent: Monday, June 16, 2003 9:08 AM
Subject: [aprssig] Field Day Water Power
: Has anyone else played with this?
:
: Bob, WB4APR
:) in Western Kansas? Nope. Admitting I never have seen the innards of the
pump out of an automatic washer, I have to guess it's a centrifugal pump.
Will a centrifugal pump act as a motor with a reversed flow? My guess,
based on seeing the innards of such pumps would be no, but than again I have
never tried it. Perhaps making friends with Old Lonely would net you a test
pump to work with.--73
Doug, N0LKK
dougy@ruraltel.net
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Subject: Re: Field Day Water Power
From: "Mike Yetsko" <myetsko@insydesw.com>
Date: Mon, 16 Jun 2003 12:45:32 -0400
X-Message-Number: 7
I wouldn't think it'd be too efficient. A lot of pumps work by flinging
the water outward and then circular. I suppose once the flow started,
you'd get something...
But I've seen sites where you can get 500W generators that work with as
little as INCHes of drop (with big pipes, I'm sure!). Anyway, they all
seem to be built as 'spoon' type vanes on a generator with multiple
'squirters' aimed at the vanes... Imagine a 'chassis' with a generator on
it with a vertical shaft down 'into' the chassis. The shaft has a 'plate'
made up of spoons, at a slight angle off vertical. At each of the 4
corners of your 'chassis', there is a nozzle spraying water 'in' at the
spoons, very slightly off-center, causing the plate of spoons to spin...
Mike
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Subject: Re: Field Day Water Power
From: Glenn Wiebe <gswiebe@mts.net>
Date: Mon, 16 Jun 2003 11:52:51 -0500
X-Message-Number: 8
Bob, in spite of your busy schedule you still have too much time on your
hands. :-)
Glenn...VE4GN
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Subject: Re: import raw data
From: "Phil Pacier, AD6NH" <ad6nh@arrl.net>
Date: Mon, 16 Jun 2003 11:54:24
X-Message-Number: 9
On 06/15/03, ""Joe Della Barba" <joe@dellabarba.com>" wrote:
>Is there any way to take the raw data from FINDU and have APRS+ read it and
>plot the positions?
>Thanks,
>Joe Della Barba
>73 de N3HGB-5
How would this be any different from connecting to one of the APRS internet
servers?
Phillip Pacier - AD6NH
http://www.aprsca.net
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Subject: Re: Field Day Water Power
From: Miller Scott Contr 30SCS/FTI <Scott.Miller@vandenberg.af.mil>
Date: Mon, 16 Jun 2003 17:13:07 -0000
X-Message-Number: 10
I think what you're describing is called a Pelton Wheel. Saw one in
operation at Hoover Dam - not to generate power for sale, but to generate
power to run the plant itself. I think that one was something like 1/4
megawatt.
http://www.wikipedia.org/wiki/Water_turbine
http://www.student.utwente.nl/~wot/impulse/us/pelton.html
Scott
N1VG
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