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ZL3AI > APRDIG 08.05.03 10:16l 56 Lines 2246 Bytes #999 (0) @ WW
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Subj: TAPR Digest, May 05, 7/7
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Sent: 030507/1344Z @:ZL3VML.#80.NZL.OC #:65352 [Chch-NZ] FBB7.00i $:1281-ZL3AI
From: ZL3AI@ZL3VML.#80.NZL.OC
To : APRDIG@WW
Subject: Re: EMERGENCY BEACON EA8EE/MM(?)
From: "Joe Della Barba" <joe@dellabarba.com>
Date: Mon, 5 May 2003 22:25:27 -0400
X-Message-Number: 63
Anyone know what percentage of APRS distress signals have been real?
73
Joe N3HGB
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Subject: Trail Posts ( Waspp. Trail )
From: "fred houghton" <ve7ffk@mail.ocis.net>
Date: Mon, 5 May 2003 20:10:21 -0700
X-Message-Number: 64
Hi Guys:
One item that could derail this project is Vandalism. Whatever you install
Must be as vandal proof as you can make it.
I envision a 6-8" Steel Post about 10' tall, solidly anchored to the
Mountain Rock.
Inside is as many 7.5 AH AGM batteries as needed and the Electronics all
wrapped in insulation. The top of the Post would be a Clear Lexan Tube with
a Flexible RV Solar Panel rolled inside and above that would be the Antenna.
Your ID Unit would be one of those Animal ID Pellets inserted inside of a
Key Fob. The Sensor Head would be set in a hole, in the post and cast in
Epoxy, so that you would touch the Key Fob against the sensor head for ID.
An LED would flash twice to let you know it read your ID.
Now - for messages. Like some of the APRS units you could use pre-arranged
messages. After the Aknowledge of your ID (2 flashes of the LED) you would
then touch the Key Fob to the Sensor Head ( at one second intervals ) - once
for message #1, twice for message #2, etc. up to 0 or the 10th message.
After you have done the appropriate message you would wait 30 seconds and
the LED would again flash twice to acknowledge your message.
You would then wait another 30 seconds and if there is a return message
awaiting for your ID, the LED would flash the appropriate times for the
proper message #.
An audible sound could also be included with the flashing LED. This type of
setup would be very Vandalproof with no projections that could be ripped
off.
You could also have your own set of Messages from #1 - #10, or use a
Standard Set.
I have no idea what the ID Chips and Reader, with a remote sensor head,
would cost.
I am thinking only of Security of the installation.
Ok Guys - Run with that...
Cheerz
Fred - VE7FFK
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END OF DIGEST
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