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ZL3AI > APRDIG 11.12.03 07:22l 229 Lines 8842 Bytes #999 (0) @ WW
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Read: GUEST
Subj: TAPR Digest, Dec 05, 2/2
Path: DB0FHN<DB0RGB<OK0PPL<DB0RES<ON0AR<ZL2BAU<ZL2BAU<ZL3VML
Sent: 031211/0427Z @:ZL3VML.#80.NZL.OC #:14323 [Chch-NZ] FBB7.00i $:2455-ZL3AI
From: ZL3AI@ZL3VML.#80.NZL.OC
To : APRDIG@WW
Subject: RE: APRS HF Antenna dimensions
From: "Doug Younker" <dougy@ruraltel.net>
Date: Fri, 5 Dec 2003 02:39:10 -0600
X-Message-Number: 9
----- Original Message -----
From: "Bill Vodall - WA7NWP" <wa7nwp@jnos.org>
To: "TAPR APRS Special Interest Group" <aprssig@lists.tapr.org>
Sent: Thursday, December 04, 2003 10:11 AM
Subject: [aprssig] RE: APRS HF Antenna dimensions
: Of course velocity factor, wire size, height above
: ground and surrounding objects change everything and
: there's no absolute equation. Antennas need to
: be tweaked.
Too bad contemporary publications mention 468/f don't mention the bit of
trivia I read when I started reading about antennas. As Bill did here, the
article mentioned that there is no absolute equation and the 468 was the
result of an amateur who kept good records while building antenna at HIS
location and 468 was the constant that came up for that location and somehow
468 made it into a publication and became gospel. The article went on to
recommend antenna builders keep notes on their projects to develop a
constant that is custom to their own location. Hamlore or not I don't know
and I can't recall where I read this account. Anyway it seems that 468/f
does initially gets into the ball park in many instances and most likely
will remain the initial reference for time in memorial.--73
Doug, N0LKK
dougy@ruraltel.net
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Subject: Re: La Crosse Technology WX Stations
From: "Andy Pritchard" <apritch@blueyonder.co.uk>
Date: Fri, 5 Dec 2003 19:55:46 -0000
X-Message-Number: 10
Those with the heavy weather beta 2.0 software might like to try UI-Weather
at http://www.apritch.myby.co.uk/uiweather.htm
73 - Andy, M0CYP
UI-View http://welcome.to/uiview
Propagation http://welcome.to/dxradio
Prop. Mon. 144.800 Mhz - Telford - IO82SQ
----- Original Message -----
From: "john van sandt" <n9yrx@hotmail.com>
To: "TAPR APRS Special Interest Group" <aprssig@lists.tapr.org>
Sent: Friday, September 19, 2003 12:37 PM
Subject: [aprssig] La Crosse Technology WX Stations
>Bob,
>I have one of these units and find it very well designed. It is not
>however lending itself well to APRS weather station. The base unit talks to
>the computer via RS-232 but the code is not readily avaliable from anyone I
>could find at LaCrosse. It appears the information you (we) need is in
>France. I have ask the same question to this list a few weeks ago and have
>the same response you did (or have to date).
>There is a club http://www.qsl.net/k4mqf/aprs.htm that says they have one up
>and running, but the links from their web site are dead ends and the e-mail
>addresses are non-existant. If you get any info please share with me (us).
>
>N9YRX
>ARRL Clark County ILL Emergency Coordinator
>ILL Section Offical Emergency Station
>For present APRS location:
>http://www.findu.com/cgi-bin/find.cgi?n9yrx
>ARO John W. Van Sandt
>1302 Beech St.
>Marshall, ILL 62441
>Ph 217-826-8821
>Subject: La Crosse Technology WX Stations
>From: "Bob D." <n2iph@comcast.net>
>Date: Thu, 18 Sep 2003 08:58:25 -0400
>X-Message-Number: 5
>
>Anyone have any first-hand knowledge of the La Crosse Technology WS-2310
>or WS-2315 wireless weather stations. I was in BJ's this afternoon and
>saw that they have the WS-2310 for $180. Looking around at a few places
>on the net I find the average price to be over $225. Says it has a PC
>interface but haven't found an online manual and little information on
>the package at BJ's to indicate much more than that it is a serial
>connection to the PC. Date/Time is via WWVB.
----------------------------------------------------------------------
Subject: Silicon Valley discovers Digipeaters; Calls them "Mesh Computing"!
From: WA8LMF2@aol.com
Date: Fri, 5 Dec 2003 15:11:07 EST
X-Message-Number: 11
>From story at ABCnews.com Sci/Tech area :
http://abcnews.go.com/sections/SciTech/FutureTech/mobile_mesh_network_031202=
..html
"several companies are working on new schemes called "mesh networking" that
might ease the aggravation. And one start-up company, PacketHop in Belmont;
Calif., has hashed out a particularly interesting way to form these mobile
meshes. "
"PacketHop's technology is a set of specialized software that can be
embedded into mobile devices and wireless network transmitters. The
computer code allows each device within the wireless network - whether a
cell phone, laptop, handheld computer - to act as a "node," or relay point,
and to route digital data along to other compatible devices nearby.
Data bounces, or "hops," from one device to another until it reaches the
device that requested the information. If a node becomes unavailable due to
interference or other problems, other nearby devices can pick up the slack
in relaying the bits of data.
Since PacketHop's special software essentially creates a "mesh" of
connections between all the devices, the wireless network becomes more
robust at delivering data where it needs to go."
Stephen H. Smith wa8lmf (at) aol.com
Home Page: http://wa8lmf.com
Ham Radio/Mobile SSTV page: http://members.aol.com/wa8lmf/ham
APRS Stuff
http://members.aol.com/wa8lmf/aprs
----------------------------------------------------------------------
Subject: Re: Silicon Valley discovers Digipeaters; Calls them "Mesh Computing"!
From: Jeff King <jeff@aerodata.net>
Date: Fri, 5 Dec 2003 15:24:21 -0500
X-Message-Number: 12
Actually, a better amateur radio analogy is Netrom or RSPF (for the TCP/IP
folks). I've been out of APRS for the last 3 months, so maybe I am wrong,
but I don't think APRS has any automatic route discovery or metric to
qualify different routes. It (APRS) just blasts them out and hopes for= the
best.
Mesh networking is quite different then APRS or digipeating in this regard.
That much being said, if your point was the press release is total hogwash,
your right. On the hacker front, besides Karn et. all's NOS RSPF from the
late 80's, MIT has been doing some stuff with mesh network, and even on the
commercial front, Mesh networking is old news (RoofTop Networks, later
acquired by Nokia, was the first on the front here). And even before them
was Tetherless access, run by past TAPR mover and shaker Dewayne Hendricks.
--
Jeff King, jeff@aerodata.net on 12/05/2003
----------------------------------------------------------------------
Subject: Football Underway
From: Bob Bruninga <bruninga@usna.edu>
Date: Fri, 5 Dec 2003 15:33:15 -0500 (EST)
X-Message-Number: 13
Football is underway...
http://www.ew.usna.edu/~bruninga/fball2003.html
Bob
----------------------------------------------------------------------
Subject: ? GM-300 Acc Plug to KPC3+ Connections ?
From: Richard Garcia <k4gps@bellsouth.net>
Date: 05 Dec 2003 18:51:53 -0500
X-Message-Number: 14
Has anyone made up a cable to connect the KPC3+ (9pin) to a GM-300
Accessory Plug ? The VHF side of my kenwood V7A has died just in time for
my 1100 mile holiday trip and I want to use the Motorola instead.
I have not wired up a KPC3+ in over 2 years and never connected a TNC to a
GM/Maxtrac series radio. If anyone has made up a cheat sheet on this (or at
least on the GM-300) I would appreciate it! I just picked up a couple of
the accessory plugs today and would like to give it a shot this weekend.
Thanks,
Rich K4GPS
----------------------------------------------------------------------
Subject: RE: Football Underway
From: "Ken Brown" <W2KB@comcast.net>
Date: Fri, 5 Dec 2003 19:55:24 -0500
X-Message-Number: 15
And into the blizzard. Gee!
----------------------------------------------------------------------
Subject: Digi Coverage I-95 FL to NYC ??
From: Richard Garcia <k4gps@bellsouth.net>
Date: 05 Dec 2003 20:14:38 -0500
X-Message-Number: 16
Well it's time for my bi-yearly trip back to visit the out-laws..How is
coverage coming along along the I-95 corridor ? Last trip I remember
very spotty coverage between Brunswick GA to Woodbridge VA even with a
roof mount antenna and 50W.
There was coverage in small areas along the Carolinas and a little in
Richmond VA but that is all that I can remember.
Trying to decide if I am going to load up UI-View and PMaps on my laptop
or just do a dumb tracker since the kid will be using it mostly for
DVD's. Also would a path of WIDE,WIDE do the trick or am I going to need
to keep chaning the path along the route ?
Thanks,
Rich K4GPS
----------------------------------------------------------------------
Subject: Re: ? GM-300 Acc Plug to KPC3+ Connections ?
From: Rich Osman <Rich@osman.com>
Date: Fri, 05 Dec 2003 19:26:57 -0600
X-Message-Number: 17
You may find this useful; http://batlabs.enterzone.net/gm300.html
---
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