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ZL3AI > APRDIG 04.02.04 13:40l 303 Lines 10758 Bytes #999 (0) @ WW
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From: ZL3AI@ZL3VML.#80.NZL.OC
To : APRDIG@WW
Subject: Re: Stupid Question - SORRY
From: "Curt, WE7U" <archer@eskimo.com>
Date: Mon, 2 Feb 2004 09:58:35 -0800 (PST)
X-Message-Number: 6
On Mon, 2 Feb 2004, Dick C. Reichenbach wrote:
>I don't know if it is in development anymore, but the simple application
>SmartPalm (http://smartpalm.sourceforge.net/) might help you, but I
>don't know if it supports the D7. It must not be in development, the
>last binary is dated March 2001.
>
>Curt, you might add SmartPalm to your Client Capabilities chart.
You're making me feel rather silly as I'm one of the contributors to
the SmartPalm project! There hasn't been much development on it for
a while. There could be again though.
So far it supports only the Alinco mobile rig. I got involved to
add support for the SmartMicro TNC module for the Handspring PDA's.
Shortly after I got going on it I smashed my PDA's screen, then
SmartMicro decided to go in other directions and stopped producing
that module. I've since replaced my PDA with an identical one, so I
could continue, perhaps adding support for other TNC's.
--
Curt, WE7U archer at eskimo dot com
Arlington, WA, USA 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!"
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Subject: Re: Xastir and Toporama Maps
From: "Curt, WE7U" <archer@eskimo.com>
Date: Mon, 2 Feb 2004 10:36:31 -0800 (PST)
X-Message-Number: 7
On Sun, 1 Feb 2004, Adi Linden wrote:
>Has anyone any pointers on using Canadian Toporama maps with Xastir or
>UI-View? I have an old P100 notebook I want to dedicate to APRS. Not sure
>if I want to run Win98 and UI-View or Linux and Xastir. Do these programs
>support a moving map using aconnected GPS, similar to OziExplorer?
The Xastir project has not heard of "Toporama", to the best of my
knowledge. Is that a commercial map program, an internet map
server, or perhaps a free source of map files?
--
Curt, WE7U archer at eskimo dot com
Arlington, WA, USA 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!"
----------------------------------------------------------------------
Subject: Re: Xastir and Toporama Maps
From: "Curt, WE7U" <archer@eskimo.com>
Date: Mon, 2 Feb 2004 10:38:37 -0800 (PST)
X-Message-Number: 8
On Sun, 1 Feb 2004, Adi Linden wrote:
>Do these programs
>support a moving map using aconnected GPS, similar to OziExplorer?
Xastir supports that better than OziExplorer does. I use
Linux/Xastir in my Jeep, with either Tiger maps for street maps, or
USGS topo maps. It gives me a contiguous view of the area in either
case. Of course I have several good sources of free maps down here.
--
Curt, WE7U archer at eskimo dot com
Arlington, WA, USA 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!"
----------------------------------------------------------------------
Subject: Re: TRACE question...
From: Earl Needham <needhame1@yucca.net>
Date: Mon, 02 Feb 2004 11:39:43 -0700
X-Message-Number: 9
At 10:18 AM 2/2/2004, Bob Bruninga wrote:
><snip>
>So here are the driving facts:
>1) 144.39 is overloaded, we must shorten paths where possible
>2) We must learn that APRS is for local use and LOCAL is defined
> by 1200 baud channel capacity and for APRS this works out to
> be about 50 to 100 users. THis is true whether you are in Wyoming
> or Los Angeles.
>3) Hence your path must be only long enought to hit your area of 50 to
> 100 users and no more.
>4) This is usually 2 hops or so
Soooo...
What do we do in our mobiles when we go from Wyoming (5 hops to get to 50
people or LESS) to Los Angeles (where 50 stations are probably NO hops
away)?
Or from Clovis, New Mexico to Dallas Texas, and back, to get exactly MY
experience...
7 3
Earl
Earl Needham, KD5XB, Clovis, New Mexico DM84jk
KD5XB-2>APW251,PCSAT-1%:=3425.83N/10313.55W-PHG7150/WinAPRS 2.5.1
-EARL_CLOVIS -251-<630>
SETI@Home: 11333WU/7.35yrs
----------------------------------------------------------------------
Subject: Re: TRACE question...
From: Earl Needham <needhame1@yucca.net>
Date: Mon, 02 Feb 2004 11:42:19 -0700
X-Message-Number: 10
At 10:18 AM 2/2/2004, Bob Bruninga wrote:
>All of these concepts have been smmarized on my web page below:
>
>http://www.ew.usna.edu/~bruninga/aprs/fix14439.html
Can't get to that page for some reason, but
http://cadigweb.ew.usna.edu/~bruninga/aprs/fix14439.html
seems to work OK.
Earl
Earl Needham, KD5XB, Clovis, New Mexico DM84jk
KD5XB-2>APW251,PCSAT-1%:=3425.83N/10313.55W-PHG7150/WinAPRS 2.5.1
-EARL_CLOVIS -251-<630>
SETI@Home: 11333WU/7.35yrs
----------------------------------------------------------------------
Subject: GPS Signal re-radiation
From: "Sadowski, Allan" <allan.sadowski@ncshp.org>
Date: Mon, 2 Feb 2004 14:12:49 -0500
X-Message-Number: 11
Surely someone here on the list is doing this.
I need to feed GPS RF from the roof of this building - into an office.
It'll be used for testing... but the shell of the building currently
blocks GPS signals. I've seen at other facilities expensive GPS
equipment that relies on reradiation of the signal ... I figure someone
here has done it on the cheap... so that their GPS works fine inside.
I do not care that the summing node (antenna) on the roof does not
accurately reflect the position inside the building.. I just need the
GPS receivers to work.
TNX
ALOHA
AH6LS
----------------------------------------------------------------------
Subject: Re: TRACE question...
From: Bob Bruninga <bruninga@usna.edu>
Date: Mon, 2 Feb 2004 14:24:11 -0500 (EST)
X-Message-Number: 12
On Mon, 2 Feb 2004, Earl Needham wrote:
>What do we do in our mobiles when we go from Wyoming (5 hops to
>get to 50 people or LESS) to Los Angeles (where 50 stations are probably NO
>hops away)?
You may have missed the line in my post that says:
"We do want people to be able to use LONG paths when they need to..."
If people would set up the network as I have discussed in my New n-N
paradigm, then one could use WIDE5-5 and it would work in Wyoming and in
LA. ANd not do damage either place:
1) Beacuse in Wyoming, the SYSOPS know that 5-5 is OK and have allowed it.
or routed it along a LINKn-N chain
2) Because in LA they have made a WIDEn-N LAN-N that only results in N
copies to only the few digis that cover the area, or your 5-5 hops are
stoped from entering the city by a WIDEn-N firewall..
I think many people do not udnerstand what we are trying to do here. What
we are trying to do is make the network support the users in the best way
they can. Thus, LONG paths work where there is bandwidth but they do NO
DAMAGE in areas where the channel cannot support them, yet they still
propagate to cover the local area.
>Or from Clovis, New Mexico to Dallas Texas, and back, to get
>exactly MY experience...
Yep, if those areas (such as Dallas) or other high traffic LAN's put up
WIDEn-N LINK-N's to route around the city or Firewalls to protect the
city, then you should be able to use WIDE5-5 with impunity anywhere in
between.
Bob, WB4APR
----------------------------------------------------------------------
Subject: Re: TRACE question...
From: Bob Bruninga <bruninga@usna.edu>
Date: Mon, 2 Feb 2004 14:33:48 -0500 (EST)
X-Message-Number: 13
>... But at the same time, I think you're on to something. The big
>population centers are in trouble [with QRM] and sinking fast. Out here
>isn't such a problem.
Yep, and it is to the cities that I am preaching. They need to make use
of the new N-N thinking to "protect" themsleves - AND - so that you can
use WIDE5-5 if needed while driving through the wilderness without being
castigated by others..
Actually, instead of WIDE5-5 in the wilderness, you should use
WIDE,WIDE4-4 for the same effect:
1) You still get 5 hops in the wilderness where you need it
2) The entry point is preserved (as long as all digis are NOID)
3) You will still get out in the CITIES via the original WIDE when
you arrive at the city.
4) The CITY whould have protected itself from WIDEn-N long hops by
not supporting it in the city where a WIDE will hear you and so
will everyone else...
Bob
----------------------------------------------------------------------
Subject: Re: GPS Signal re-radiation
From: "Stephen H. Smith" <WA8LMF2@aol.com>
Date: Mon, 2 Feb 2004 11:42:43 -0800
X-Message-Number: 14
Sadowski, Allan wrote on 2/2/2004, 11:12 AM:
>I need to feed GPS RF from the roof of this building - into an office.
>
>It'll be used for testing... but the shell of the building currently
>blocks GPS signals. I've seen at other facilities expensive GPS
>equipment that relies on reradiation of the signal ... I figure someone
>here has done it on the cheap... so that their GPS works fine inside.
>
>I do not care that the summing node (antenna) on the roof does not
>accurately reflect the position inside the building.. I just need the
>GPS receivers to work.
>
>TNX
>
>ALOHA
>AH6LS
Check this out:
http://www.tri-m.com/products/systems/superrad.html
A compete external hard mount high gain GPS antenna and indoor
re-radiating passive Helix type antenna allowing GPS devices to be used
inside virtually any enclosed area
Re-radiating distance of 5~10 metres
Multiple users can share one signal
Frequency: L1 band 1.575 GHz, 60 dB gain
Bandwidth: 50 MHz
Power input: 4.5 to 5.5 V power consumption: 55mA
Note that this is a Canadian company in Vancouver, BC and that prices
quoted are in Canadian dollars -- US dollar equivalents will be about
25% less.
They also have a distributer in Manitoba Canada -- see:
http://www.prairie.mb.ca/tri_m.htm
Scroll down this page of GPS antenna listings and look for
"Re-Radiating Antennas"
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
Radio Communications Systems Personal Computers
Consulting and Systems Integration
GPS Custom Mapping & Radio Coverage Surveys
File Conversions MS-Windows Setups Networking
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