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ZL3AI > APRDIG 12.04.07 05:59l 117 Lines 4264 Bytes #999 (0) @ WW
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Subj: [APRSSIG] Vol 34 #9, 6/6
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To : APRDIG@WW
Message: 42
Date: Tue, 10 Apr 2007 08:25:43 -0700 (PDT)
From: "Curt, WE7U" <archer_at_eskimo.com>
Subject: RE: [aprssig] SSID for RF only Station with backup power
On Tue, 10 Apr 2007, Rick Green wrote:
>All this discussion of special identifiers for stations with exceptional
>UPS capabilities is moot:
>
>In an emergency, when it is most necessary to identify such stations,
>they will be conspicuous by the fact that they will be the only stations
>beaconing anything at all!
>...remember that one lonely rf-only digi in New Orleans, Pleading 'use me!
>Use me!' to deaf ears...
Imagine this scenario: You are starting up an emergency net with available
stations soon after a major power interruption. You start recommending to
others that they use XX digi and YY igate, perhaps ZZ other resource. Then
one or more of them start disappearing.
It'd be good to know ahead-of-time which ones might be a bit more reliable
longer-term.
Other than that, I agree with you. Given enough time it'll all sort itself
out. ;-)
--
Curt, WE7U. APRS Client Comparisons: http://www.eskimo.com/~archer
"Lotto: A tax on people who are bad at math." -- unknown
"Windows: Microsoft's tax on computer illiterates." -- WE7U
"The world DOES revolve around me: I picked the coordinate system!"
------------------------------
Message: 43
Date: Tue, 10 Apr 2007 11:35:38 -0400 (EDT)
From: Rick Green <rtg_at_aapsc.com>
Subject: RE: [aprssig] SSID for RF only Station with backup power
On Tue, 10 Apr 2007, Curt, WE7U wrote:
>Imagine this scenario: You are starting up an emergency net with
>available stations soon after a major power interruption. You start
>recommending to others that they use XX digi and YY igate, perhaps
>ZZ other resource. Then one or more of them start disappearing.
>
>It'd be good to know ahead-of-time which ones might be a bit more
>reliable longer-term.
....and no matter how we prepare, Murphy usually thinks 'out-of-the-box',
and the digi that's actually available may not be the one that we mere
humans would have predicted!
Are there any low-power digi implememtations that include some telemetry
capabilities? In a situation of severely reduced resources, it would
certainly be helpful to know Actual battery state, solar influx, or
whatever, rather than some capacity claimed months or years ago when the
station was set up. That would also be consistent with the basic APRS
definition of *current* situational awareness.
--
Rick Green
"Those who would give up essential Liberty, to purchase a little
temporary Safety, deserve neither Liberty nor Safety."
-Benjamin Franklin
------------------------------
Message: 44
Date: Tue, 10 Apr 2007 12:04:57 -0400
From: "Robert Bruninga" <bruninga_at_usna.edu>
Subject: RE: [aprssig] SSID for RF only Station with backup power
>OK, I better understand.
>I'm looking at what uiview provides, I see a
>civil defense triangle, and a symbol for NTS.
>Perhaps one of those combined with a beacon
>comment would get across the information...
Now that is a good idea. The "civil defense" symbol is an overlayable
symbol. It was not necessarily required to be "civil defense", but that
was the best descriptor I came up with in trying to describe what the basic
symbol should look like. Also, since the symbol character is a "#c", I
thought that "civil" was a nice match. That is, a WHITE triangle within a
BLUE circle. The Overlay character shows nicely in the middle in red.
That would be a nice symbol for an emergency powered station that is
intended to be operational during emergencies and loss of power. Maybe we
could suggest an overlay of "E" for emergency powered station. Right now,
we are using these overlays for that symbol:
R = RACES
C = CERTS
E = Emergency Power?
See:
http://www.ew.usna.edu/~bruninga/aprs/symbols-overlays.txt
But for those APRS programs that allow overlays on all symbols,
then the overlays for the HOUSE station symbol could be:
B=Battery E=Emergency Per G=Generator S=Solar W=Wind
Bob, WB4APR
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End of aprssig Digest, Vol 34, Issue 9
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