| |
ZL3AI > APRDIG 19.09.06 22:16l 131 Lines 4635 Bytes #999 (0) @ WW
BID : D9GIS0HHA0I5
Read: GUEST
Subj: [APRSSIG] Vol 27 #2, 3/3
Path: DB0FHN<DB0FOR<DB0MRW<DK0WUE<7M3TJZ<HS1LMV<TU5EX<IW2OAZ<IS0HHA
Sent: 060913/1854z @:IS0HHA.ISAR.ITA.EU [OpenBCM] OBcm1.06
From: ZL3AI @ IS0HHA.ISAR.ITA.EU (Tony)
To: APRDIG @ WW
X-Info: Sent with login password
R:060913/1756Z @:IS0HHA.ISAR.ITA.EU #:26757 [27517] FBB7.01.35 alpha
R:060904/0448z @:IW2OAZ.ILOM.ITA.EU $:8708-ZL3AI
R:060904/0347Z @:ZL2BAU.#87.NZL.OC #:2061 [Waimate] $:8708-ZL3AI
From: ZL3AI@ZL2BAU.#87.NZL.OC
To : APRDIG@WW
Message: 16
Date: Sat, 2 Sep 2006 05:57:35 -0400
From: Steve Dimse <steve_at_dimse.com>
Subject: Re: [aprssig] Fun with FloodAdvisor
On Sep 2, 2006, at 12:10 AM, Tyson S. wrote:
>A friend of mine became a ham specifically because of APRS and what he
>had hoped to be able to do with APRS. And that is to monitor small
>creeks where he likes to go kayaking that do not have a USGS water
>station installed. He wanted to make his own unit and just temporally
>install it in the portion of creek he wants to know about. When the
>level is right, take off early from work and hit the water! so will
>this thing work in a creek environment and do what he wants it to do?
If what he needs to know is represented by the water level at an accessible
point, and resolution of a tenth of a foot is adequate, then yes, this
would do it. Kayakers typically talk about flow rates rather than levels,
and FloodAdvisor does not measure rates. However, I can imagine a pool in a
creek, either natural or man-made, which has a level which varies based on
flow rates. FA would work great in this case.
Steve K4HG
------------------------------
Message: 17
Date: Sat, 2 Sep 2006 08:39:46 -0400
From: "Wes Johnston, AI4PX" <wes_at_kd4rdb.com>
Subject: Re: [aprssig] Wi-Fi Positioning System (WPS) for APRS
The obvious hack here is to name your wifi router with the SSID of your
lat/lon. Of course that fails in large wifi coverage areas where you have
multiple hotspots that ordinarily have the same ssid. SSID contains 32
characters. It would be possible to name a SSID something like
33.598123x-080.241115. Position ambiguity could be expressed by simply
using less or more decimal places in the name. a hotspot with the name
33.5x-080.2 would represent an area 6 miles square for example.
Come to think of it though.... wouldn't it be slick to name your wifi AP
with an APRS compressed position packet? Like this:
AI4PX-15>APRS:!/=AY':0xp[ st
Of course no ordinary person is going to do this when they name their AP.
It's a shame there's no provision for this in the SSID broadcast.
Wes
------------------------------
Message: 18
Date: Sat, 2 Sep 2006 08:40:00 -0600
From: Joel Maslak <jmaslak-aprs_at_antelope.net>
Subject: Re: [aprssig] Wi-Fi Positioning System (WPS) for APRS
On Sep 2, 2006, at 12:16 AM, John Habbinga wrote:
>Why? Well, if your computer is equipped with a Wi-Fi card (or
>internal) and not a GPS, then you can still deterimine your location.
>If you are indoors, where GPS doesn't work, Wi-Fi positioning would
>still work. If you have a GPS, but don't want to wait 2 minutes for
>it to aquire a satellite signal, then Wi-Fi positioning can determine
>locations in just a couple of seconds.
In addition, GPS often doesn't work in city downtown areas, due to the
urban canyons. Yet, these places are rich in access points.
------------------------------
Message: 19
Date: Sat, 02 Sep 2006 09:18:40 -0700
From: wa7nwp <wa7nwp_at_jnos.org>
Subject: Re: [aprssig] Wi-Fi Positioning System (WPS) for APRS
>The obvious hack here is to name your wifi router with the SSID of your
>lat/lon.
Use grid square. DN87abxy
>Of course no ordinary person is going to do this when they name their
>AP. It's a shame there's no provision for this in the SSID broadcast.
Would you really want somebody to know exactly where your wifi (home) is?
Much of this is just re-inventing Bob's vicinity tracking.
Bill - WA7NWP
------------------------------
Message: 20
Date: Sat, 2 Sep 2006 12:58:34 -0400
From: isobar <isobar_at_bcpl.net>
Subject: RE: [aprssig] Fun with FloodAdvisor
>===== Original Message From Steve Dimse <steve_at_dimse.com> =====
>I got one of the water gauges, so expect more than the previously
>mentioned graph of water levels:
>[...]
>If you have access to water, you should get one of these things, they
>work, and they are cool...
I would think that the US Naval Academy needs one of these, desparately.
A few milliwatts from the seawall to the tower, and the transmitter
batteries would last forever. Would have been nice to see the Ernesto
effect yesterday.
right, Bob?
Bob Kirk
N3OZB
------------------------------
aprssig mailing list
aprssig_at_lists.tapr.org
https://lists.tapr.org/cgi-bin/mailman/listinfo/aprssig
End of aprssig Digest, Vol 27, Issue 2
Read previous mail | Read next mail
| |
