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To  : APRDIG@WW

TAPR APRS Special Interest Group Digest for Monday, June 28, 2004.

1. APRS on a PDA?
2. Re: APRS WX format
3. Re: APRS on a PDA?
4. Re: Symbols
5. Re: Symbols
6. Re: Symbols
7. Re: APRS on a PDA?
8. Re: APRS on a PDA?
9. Re: APRS on a PDA?
10. Re: APRS on a PDA?
11. APRS865 release
12. Re: Symbols
13. APRS automatic R E P L Y spam
14. Re: APRS WX format
15. Re: APRS WX format
16. Unproto Paths for Digipeaters
17. Re: Symbols
18. Re: Unproto Paths for Digipeaters
19. Re: Unproto Paths for Digipeaters
20. Re: APRS WX format
21. Re: APRS on a PDA?
22. Re: Unproto Paths for Digipeaters
23. Re: APRS WX format
24. Re: Unproto Paths for Digipeaters
25. Re: Unproto Paths for Digipeaters
26. Re: Unproto Paths for Digipeaters
27. Re: Unproto Paths for Digipeaters
28. Best TinyTrak, settings
29. Re: Unproto Paths for Digipeaters
30. Re: Unproto Paths for Digipeaters
31. Re: Unproto Paths for Digipeaters
32. Re: Unproto Paths for Digipeaters
33. Re: Best TinyTrak, settings
34. Re: Unproto Paths for Digipeaters
35. Re: Best TinyTrak, settings

----------------------------------------------------------------------

Subject: APRS on a PDA?
From: Skip Allison <k9sa@yahoo.com>
Date: Mon, 28 Jun 2004 06:23:26 -0700 (PDT)
X-Message-Number: 1

I'm thinking about getting a PDA for mobile mapping and APRS.  What's the
easiest way?  I have a KPC3+ in the car. I'd like to be able to plug into
that.  Is there a USB port on some of the PDAs?  Could I use a RS232 to USB
adapter?  What if I just wanted to connect a USB GPS Rcvr into a PDA and
use Street Atlas for mapping?

I've talked to sales guys at Circuit City and some other places and none of
them seem to know anything.

I was looking at the iPAQ 1945.  Anybody know how much memory is needed for
Street Atlas maps?

Skip
K9SA

----------------------------------------------------------------------

Subject: Re: APRS WX format
From: "Robert Bruninga" <bruninga@usna.edu>
Date: Mon, 28 Jun 2004 09:26:12 -0400
X-Message-Number: 2

The below email asks about bringing APRS weather reporting standards in
line with METAR standards. I would be willing to address this if the APRS
WX gurus can reach consensus:

>>>"Russ Chadwick" <russ@wxqa.com> 6/27/04 11:37:24 PM >>>
>
>In developing the CWOP Weather Station Guide, 
>[there are] a few disconnects between the APRS 
>interface control document and METAR reporting
>standards.  These are:
>
> APRS     vs   METAR Issues
>1. 5 minute vs   10 minute gust
>2. 1 minute vs   2 minute mean wind
>3. precip since last hour vs 1 hour precip

We -want- to be compatible, and when APRS was developed we were told that
our 5 and 1 minute wind were desired by NWS.  If it has changed, we should
change too (though many WX stations are MFR firmware only and are stuck
with the 5 and 1)...

But APRS has always  been the correct sliding 1 hour precip.  But many APRS
software's took the simplistic approach and only did the clock hour. So
that part of the standard is correct.  Or at least that is how I understand
it.

de WB4APR, Bob

Is there a way to petition the APRS configuration management people and
correct the weather section of the APRS manual using METAR time periods?
Once codified, we could then approach the data logging software developers
and have them change the sampling and formatting of the APRS messages.

************************************************************

How would we go about getting a change in the APRS weather format
specification to more closely match the NWS METAR stations located at most
airports?  We would prepare a document that describes things in fairly
extensive detail and send it to whatever committee, group or individuals
you suggest.  I would rather not have this discussed on APRSSIG until
things are further along.

Russ Chadwick    KB0TVJ
Boulder, Colorado, USA
http://www.wxqa.com 

----------------------------------------------------------------------

Subject: Re: APRS on a PDA?
From: "DG2JW" <dg2jw@privateasylum.com>
Date: Mon, 28 Jun 2004 18:56:22 +0300
X-Message-Number: 3

Hi Skip.
Why don't you try joining this group >groups.yahoo.com/group/hampocket/<

Its a group that is specifically meant to help users of APRS with a PDA.
If you ask the same question there you will get lots of feedback.
here are more links also
>www.tapr.org/~aprsce<
>www.pocketaprs.com/<
>http://www.tomtom.com/products/products.php?ID=238&Language=1<
>www.microsoft.com/mappoint/pocketstreets/<

I am personally using both an IPAQ 5550, and a Palm M515. The Ipaq is a
good choise as it is powerful and internet connectivity and networking
comes easily. The Palm is not bad but weak regarding internet connectivity
and networking.

The nice point about the Palm is the very undesirable jerk Bill Gates has
not ruined it yet. With that said, Windows Mobile 2003 is the first windows
version that i actually like, (did I say that?) and was well thought out.

I hope this helps you.

Best regards

Julian
OH8GEJ

----------------------------------------------------------------------

Subject: Re: Symbols
From: "Curt, WE7U" <archer@eskimo.com>
Date: Mon, 28 Jun 2004 09:46:59 -0700 (PDT)
X-Message-Number: 4

On Sun, 27 Jun 2004, deni wrote:

>Are you aware of a symbol for a SUV, specifically a suburban?  I will be
>using the commtrak mostly in my pickup, but would also like to have it so I
>could change the symbol for my suburban.

There are symbols for a truck, van, car, and 4x4.  The 4x4 usually looks
like a short-wheelbase jeep, but that should be close enough for what
you're doing.  I use that with my Jeep, which is a Cherokee, another SUV.

The one labeled "Recreational Vehicle" is often misinterpreted in Europe
and elsewhere.  I recall people changing the artwork in their individual
copies of Xastir or UI-View to a symbol resembling an SUV, instead of what
we in north america think of as an RV (Winnebago or similar).

--
Curt, WE7U			         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: Symbols
From: "Scott Miller" <scott@opentrac.org>
Date: Mon, 28 Jun 2004 10:02:12 -0700
X-Message-Number: 5

>There are symbols for a truck, van, car, and 4x4.  The 4x4 usually
>looks like a short-wheelbase jeep, but that should be close enough
>for what you're doing.  I use that with my Jeep, which is a
>Cherokee, another SUV.

Which one is the 4x4?  I compiled my list from what I thought were the
latest official sources, and I've got /k = truck and /j = jeep.  /j does
indeed show up as s short-wheelbase jeep for me.

A symbol for an enclosed SUV would be nice.  Neither the jeep nor the pickup
truck look much like the Suburbans and Tahoes and such we use with SAR.  For
that matter, a utility bed and mobile command post would be nice, too.

Scott
N1VG

----------------------------------------------------------------------

Subject: Re: Symbols
From: "Curt, WE7U" <archer@eskimo.com>
Date: Mon, 28 Jun 2004 10:08:17 -0700 (PDT)
X-Message-Number: 6

On Mon, 28 Jun 2004, Scott Miller wrote:

>>There are symbols for a truck, van, car, and 4x4.  The 4x4 usually
>>looks like a short-wheelbase jeep, but that should be close enough
>>for what you're doing.  I use that with my Jeep, which is a
>>Cherokee, another SUV.
>
>Which one is the 4x4?  I compiled my list from what I thought were the
>latest official sources, and I've got /k = truck and /j = jeep.  /j does
>indeed show up as s short-wheelbase jeep for me.

"/j".  That is the one to use for a generic 4x4, but some people use the
truck icon because it looks more like their rig.  I figure if it's a 4x4
and actually goes in the dirt, use the "/j" icon.  If it's a mall-crawler
(never gets off pavement), use the truck/car/van icon.  ;-)

Of course my 2WD van gets in the dirt a lot right now too 'cuz my Jeep's in
the shop for an engine swap.


>A symbol for an enclosed SUV would be nice.  Neither the jeep nor the pickup
>truck look much like the Suburbans and Tahoes and such we use with SAR.  For
>that matter, a utility bed and mobile command post would be nice, too.

Use the RV, truck, or big truck icon.  Yea, nothing's a perfect fit, but we
have a limited set to choose from.

--
Curt, WE7U			         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: APRS on a PDA?
From: "WA8LMF@aol.com" <WA8LMF2@aol.com>
Date: Mon, 28 Jun 2004 10:16:33 -0700
X-Message-Number: 7

Skip Allison wrote on 6/28/2004, 6:23 AM:

>I'm thinking about getting a PDA for mobile mapping
>and APRS.  What's the easiest way?  I have a KPC3+ in
>the car. I'd like to be able to plug into that.  Is
>there a USB port on some of the PDAs?  Could I use a
>RS232 to USB adapter?  What if I just wanted to
>connect a USB GPS Rcvr into a PDA and use Street Atlas
>for mapping?

[ SNIP]

>I was looking at the iPAQ 1945.  Anybody know how much
>memory is needed for Street Atlas maps?

1)  PDAs are NOT shrunken PCs.  They do not run PC software.  They come 
in essentially two flavors:  Devices that run the Palm operating (i.e. 
Palm Pilot and it's various clones/derivatives) system and devices that 
run "Pocket Windows" (i.e. so-called "Pocket PCs such as the iPaq, 
Jornada, etc.)

2)  Pocket PCs run one of three different non-PC (i.e. non 
Intel-compatible) processors.  The operating system LOOKS sort of like 
Windows but isn't.

3)  You must have software specifically written for the processor.  You 
can't just download ordinary Windows software into them because:
  A:  The OS is different
  B:  The procesors are different
  C:  Hardware is different -- no keyboard, low-res portrait-oriented 
screen, no hard disks, etc.
  D:  System architecture is fundamentally different.  Programs execute 
directly from the storage medium (flash memory) rather than being loaded 
into memory as they do in a PC.

4) You have only one choice as far as APRS goes:

For the Pocket PC devices:
    APRSce   (Pocket Windows was originally known as Windows Compact 
Edition a.k.a. WinCE)

For the Palm devices:
    The confusingly named "Pocket APRS" (which DOESNT run on Pocket PCs).

Both can use maps originally made for DOS APRS or WinAPRS.  Neither can 
use any form of scrollable/zoomable maps such the way UI-View/PMap, APRS 
plus/Street Atlas, etc can.

If you think USB/serial converters are a headache on PCs, you haven't 
seen anything until you try to get one to work on a PDA since
    A:  The power available for any peripheral device is extremely small 
on these tiny devices.
    B:  Any USB device depends on software drivers installed on the host 
device. Most USB/serial "dongles" don't come with drivers for Palm or 
Pocket Windows.

Street Atlas does come in a "shrunken" version for use on PDAs ("XMap 
Handheld Edition") that vaguely resembles the full-sized version. You 
can only extract and download at one time small segments of the maps 
provided with the full-sized PC-based counterpart due to the limited 
amount of memory in the PDA. (Similar to loading small map segments into 
a display GPS device.)  Because the PDA screen is so low-res (think 
quarter-VGA web cam resolution), you have to scoll and zoom interminably 
to see anything.

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
Personal APRS Webserver         http://members.aol.com/wa8lmf/webserver

----------------------------------------------------------------------

Subject: Re: APRS on a PDA?
From: Jason Winningham <jdw@eng.uah.edu>
Date: Mon, 28 Jun 2004 12:37:49 -0500
X-Message-Number: 8

On Jun 28, 2004, at 12:16 PM, WA8LMF@aol.com wrote:
>
>1)  PDAs are NOT shrunken PCs.  They do not run PC software.  They come
>in essentially two flavors: Devices that run the Palm operating (i.e.
>Palm Pilot and it's various clones/derivatives) system and devices that
>run "Pocket Windows" (i.e. so-called "Pocket PCs such as the iPaq,
>Jornada, etc.)

A third flavor may be an iPaq type device running Linux and run Xastir 
on that platform.  I know there's a linux port 
(http://www.ipaqlinux.com/), but I don't know if anyone has tried 
Xastir on it.  If anyone wants to donate an iPaq I'll give it a try. (:

-Jason
kg4wsv

----------------------------------------------------------------------

Subject: Re: APRS on a PDA?
From: "Curt, WE7U" <archer@eskimo.com>
Date: Mon, 28 Jun 2004 10:53:15 -0700 (PDT)
X-Message-Number: 9

On Mon, 28 Jun 2004, WA8LMF@aol.com wrote:

>4) You have only one choice as far as APRS goes:

Actually two for PalmOS.


>For the Pocket PC devices:
>  APRSce   (Pocket Windows was originally known as Windows Compact
>Edition a.k.a. WinCE)

And SmartPalm.  This has limited functionality at the moment though,
supporting only the Alinco mobile rig and has no mapping capability.
Figured I'd let people know it was out there though.


>For the Palm devices:
>  The confusingly named "Pocket APRS" (which DOESNT run on Pocket PCs).


>If you think USB/serial converters are a headache on PCs, you haven't
>seen anything until you try to get one to work on a PDA since
>  A:  The power available for any peripheral device is extremely small
>on these tiny devices.
>  B:  Any USB device depends on software drivers installed on the host
>device. Most USB/serial "dongles" don't come with drivers for Palm or
>Pocket Windows.

Don't you also have a problem in that the PDA is intended to be the
remote end, connecting to a PC for sync'ing only?  Perhaps WinCE
hardware has changed this around now so that the PDA can be the
host end?

Also don't forget that most PDA's will wash out in direct sunlight,
particularly color displays, and that you'll really such batteries
quickly if you're keeping the map display and the RS-232 port
enabled.

--
Curt, WE7U			         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: APRS on a PDA?
From: "Curt, WE7U" <archer@eskimo.com>
Date: Mon, 28 Jun 2004 10:56:46 -0700 (PDT)
X-Message-Number: 10

On Mon, 28 Jun 2004, Jason Winningham wrote:

>On Jun 28, 2004, at 12:16 PM, WA8LMF@aol.com wrote:
>>
>>1)  PDAs are NOT shrunken PCs.  They do not run PC software.  They come
>>in essentially two flavors: Devices that run the Palm operating (i.e.
>>Palm Pilot and it's various clones/derivatives) system and devices that
>>run "Pocket Windows" (i.e. so-called "Pocket PCs such as the iPaq,
>>Jornada, etc.)
>
>A third flavor may be an iPaq type device running Linux and run Xastir
>on that platform.  I know there's a linux port
>(http://www.ipaqlinux.com/), but I don't know if anyone has tried
>Xastir on it.  If anyone wants to donate an iPaq I'll give it a try. (:

There's also the Sharp Zaurus models, which come with Linux on them
exclusively (I think with the Qt widget, not full-blown X11
underneath).

Nobody has tried Xastir on a PDA to my knowledge.  The main Xastir
screen can be shrunk down awfully small, but it's not intended to be
run on that size of screen currently.  All of the configuration and
mouse dialogs would be too large to deal with, unless you configured
the device with a large virtual screen and could pan around.

Anyone wanting to donate a Zaurus to the cause, you have MY e-mail
contact info!

--
Curt, WE7U			         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: APRS865 release
From: "Robert Bruninga" <bruninga@usna.edu>
Date: Mon, 28 Jun 2004 14:01:42 -0400
X-Message-Number: 11

A post-Field Day version of APRSdos has been released to still further
fine-tune APRSdos for rapid few-finger FD operations.

APRS865: 29 June 2004
   
   * Fixed MSG ERASE display bug introduced in 864
   * Disabled Dead-Reckoning on SignPosts Symbols so that the new TRAFFIC
     SPEED-POSTs objects showing traffic slow-downs wont move
   * Added PORTABLE (tent) CAMP to JUST-MOBILES so you can easily see all
     mobiles AND FD sites
   * Fixed * indication on DIGI page to only show DIRECT contacts
   * Changed REPLY message so it is not auto-canceled if you send another
     message.  This prevented using AUTO REPLY easily during FD.
   * Updated APRSmax version APRSx65 too.

Again, for Field Day, I find the SIMPLEST maps (DOS maps) were best,
because the focus of the exercise is the HAM stations and their approximate
RF locaitons not streets.  ..

Download APRS865 from the dosstuff/APRSdos folder on the TAPR.ORG software
links.  As usual, read the new NEWNOTES.TXT for details.

de WB4APR, Bob

----------------------------------------------------------------------

Subject: Re: Symbols
From: "Robert Bruninga" <bruninga@usna.edu>
Date: Mon, 28 Jun 2004 14:12:04 -0400
X-Message-Number: 12

A good symbol for an SUV would be a tombstone with RIP on it <just joking>

But this has come up often enough that ill look for a symbol code.  Why not
use the \k ?  The /k is for a truck, so this will be easy to remember?

de Wb4APR, Bob

----------------------------------------------------------------------

Subject: APRS automatic R E P L Y spam
From: "Robert Bruninga" <bruninga@usna.edu>
Date: Mon, 28 Jun 2004 14:19:12 -0400
X-Message-Number: 13

On Field Day, it was a waste to see all the useless AUTO-REPLY messages
cluttering the network. Auto-Reply messages like:

":AA: Your message has been received"
":AA: QSL  your message.  Thanks"
":AA: XXX may or may not be at the keyboard to receive your message

AUTO-REPLIES like these serve absolutely no purpose but QRM because they
accomplish nothing more than the automatic ACK that is built into APRS
already. 

When we developed AUTO-REPLY I felt strongly that REPLY messages should
ONLY  be used under needed conditions:

*  Operator NOT present and had something important he wanted to say to an
    ex-ected incoming message in his absence

*  And was automatically canceled when he returned

To help encourge proper use, APRSdos always displays the REPLY message
every time the operator accesses any message so that he cannot forget that
it is active. ANd the REPLY message is canceled as soon as the operator
attempts to SEND, KILL or ERASE any messages (thus indiciating that he has
returned to his operating position).

APRS was designed for tactical-real-time usage meaning with an operator
present.  Users should use things like AUTO-REPLY with care.

Conversly,  AUTO-REPLY messages are GOOD for field day, but ONLY if they
contain a meaningful response like:        :AA:QSL, we are 3A MDC

In this case, they provide exactly what is needed and provide something
that an ACK cannot provide (conformity with the QSO rules)...

This topic comes up today, because on FD, everyone is trying to MSG
everyone else and that is when you start seeing all the garbage AUTO-REPLY
messages that people have left on and forgotten about for years...

Please, for the sake of the network, turn off auto-reply unless it provides
a specific useful purpose for a specific period of time

Thanks
Bob, WB4APR

----------------------------------------------------------------------

Subject: Re: APRS WX format
From: "Curt, WE7U" <archer@eskimo.com>
Date: Mon, 28 Jun 2004 12:29:48 -0700 (PDT)
X-Message-Number: 14

On Mon, 28 Jun 2004, Robert Bruninga wrote:

>The below email asks about bringing APRS weather
>reporting standards in line with METAR standards.
>I would be willing to address this if the APRS
>WX gurus can reach consensus:
>
>>>>"Russ Chadwick" <russ@wxqa.com> 6/27/04 11:37:24 PM >>>
>>
>>In developing the CWOP Weather Station Guide,
>>[there are] a few disconnects between the APRS
>>interface control document and METAR reporting
>>standards.  These are:
>>
>> APRS     vs   METAR Issues
>>1. 5 minute vs   10 minute gust
>>2. 1 minute vs   2 minute mean wind
>>3. precip since last hour vs 1 hour precip
>
>We -want- to be compatible, and when APRS was
>developed we were told that  our 5 and 1 minute
>wind were desired by NWS.  If it has changed, we
>should change too (though many WX stations
>are MFR firmware only and are stuck with the
>5and 1)...

Just let us know.  I don't think it'd be any kind of a major change for our
software.  Should be relatively easy tweaks.

You might have to do some notification to weather people who are using APRS
data, as they may need to change their data collection/processing software
to match.


>But APRS has always  been the correct sliding
>1 hour precip.  But many APRS software's took the
>simplistic approach and only did the clock hour.
>So that part of the standard is correct.  Or at
>least that is how I understand it.

I believe we do that part correctly in Xastir.  I can check again though.

--
Curt, WE7U			         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: APRS WX format
From: "Curt, WE7U" <archer@eskimo.com>
Date: Mon, 28 Jun 2004 12:57:08 -0700 (PDT)
X-Message-Number: 15

On Mon, 28 Jun 2004, Curt, WE7U wrote:

>On Mon, 28 Jun 2004, Robert Bruninga wrote:
>
>>But APRS has always  been the correct sliding
>>1 hour precip.  But many APRS software's took the
>>simplistic approach and only did the clock hour.
>>So that part of the standard is correct.  Or at
>>least that is how I understand it.
>
>I believe we do that part correctly in Xastir.  I can check again
>though.

Checked on it:  We do the one-hour rolling total.

--
Curt, WE7U			         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: Unproto Paths for Digipeaters
From: "Christensen, Eric" <CHRISTENSENE@MAIL.ECU.EDU>
Date: Mon, 28 Jun 2004 17:36:55 -0400
X-Message-Number: 16

I post this in hopes of starting a discussion (not a flame war)...

I have noticed a LOT of digipeaters going up with excessive paths.  IMO,
digipeaters shouldn't be using much of a path because there isn't a need to
see them from far away.  You don't send messages to them and they don't
move.

Can anyone give me a good reason for a digipeater to use over a single hop
in its' unproto path?

73s,
Eric KF4OTN
kf4otn@amsat.org
kf4otn@w4ral.#rtp.nc.usa.noam

ARRL Member
AMSAT Member: 35360 (I gave ECHO a lift...  Did you???)
TAPR Member: 8869
Support your Hobby!  Join a club.

All contact logs are uploaded to the ARRL LoTW and eQSL.

----------------------------------------------------------------------

Subject: Re: Symbols
From: "Christensen, Eric" <CHRISTENSENE@MAIL.ECU.EDU>
Date: Mon, 28 Jun 2004 17:40:26 -0400
X-Message-Number: 17

I think you could use the regular command post symbol for a mobile command
post.  That symbol is a SAR standard symbol.

73s,
Eric KF4OTN
kf4otn@amsat.org

----------------------------------------------------------------------

Subject: Re: Unproto Paths for Digipeaters
From: "Robert Bruninga" <bruninga@usna.edu>
Date: Mon, 28 Jun 2004 18:31:05 -0400
X-Message-Number: 18

>>>"Christensen, Eric" <CHRISTENSENE@MAIL.ECU.EDU> 6/28/04 5:36:55 PM
>>>
>I have noticed a LOT of digipeaters going up with 
>excessive paths....

One has to be careful on making judgments about digis paths beacuse most of
them that are properly set up have MULTIPLE different paths.  They use a
DIRECT only POSIT once every 10 minutes. Then maybe a 1 hop every 30 mins
and a 2 hop every hour and maybe a 3 hop every 4 hours or something....

So if you just happen to catch one of the 3 hop ones, it might appear
excessive, when in fact the Digi is only doing that once every 4 hours....

But I agree completly.  That the 10 minute rate should be DIRECT with no
hops...  And anything more than 1 hop should be no more often than 30
minutes...

Or seomthign like that.  Hope that helps...

de Wb4APR, Bob

----------------------------------------------------------------------

Subject: Re: Unproto Paths for Digipeaters
From: "Robert Bruninga" <bruninga@usna.edu>
Date: Mon, 28 Jun 2004 18:38:38 -0400
X-Message-Number: 19

>>>"Christensen, Eric" <CHRISTENSENE@MAIL.ECU.EDU> 6/28/04 5:36:55 PM
>>>
>Can anyone give me a good reason for a digipeater
>to use over a single hop in its' unproto path?

Here are two ways to set up the 4 LTPaths and BLT's so that a digi ID's
every 10 mins direct but still occassionally sends out a 1 hop and 2 hop
path without a lot of network loading...  Use a FIXED FONT to view this:

>This one does 10 min direct, 30 min 1 hop and 1 hour
>2 hops
>
>Settings like this for the KPC-3Plus:
>BLT 1    EVERY 01:00:00 START 00:00:00
>BLT 2    EVERY 00:30:00 START 00:10:00
>BLT 3    EVERY 00:30:00 START 00:20:00
>BLT 4    EVERY 01:00:00 START 00:30:00
>LTP 1    APN383 VIA WIDE2-2
>LTP 2    APN383
>LTP 3    APN383
>LTP 4    APN383 VIA WIDE
>
>This shows the timing... 
> 200100200100200100200100200100200
1
> 1  0  1  0  1  0  1  0  1  0  1
0
> 0     0     0     0     0     0
>
>Or here is one that does 10 min direct, 20 min 1 hop,
>40 min 2 hop, 160 min 3 hop:
> 
> 0 1 0 2 0 1 0 3 0 1 0 2 0 1 0 . 0 1 0 2 0 1 0 3 0 1 0 2 0 1 0 . 0 1
>  0   1   0   2   0   1   0       0   1   0   2   0   1   0       0
>    0       1       0               0       1       0
>        0                               0
> Set BLT's and LTPaths like this:
> DIRECT  every 20  starting at 00
> WIDE    every 40  starting at 10
> WIDE2-2 every 80  starting at 30
> WIDE3-3 every 160 starting at 70
>
>de WB4APR, Bob

----------------------------------------------------------------------

Subject: Re: APRS WX format
From: "Scott Miller" <scott@opentrac.org>
Date: Mon, 28 Jun 2004 15:51:26 -0700
X-Message-Number: 20

>>The below email asks about bringing APRS weather
>>reporting standards in line with METAR standards.
>>Iwould be willing to address this if the APRS
>>WX gurus can reach consensus:

Speaking of APRS weather formats... I finally got the OpenTracker talking to
the Dallas 1-wire weather station.  As of last night, the only data encoded
yet is the temperature.  Per the spec, the wind speed and direction are
reported as .../... to indicate missing data.  Findu, though, shows 'wind
calm'.  There's a big difference between no wind and no wind data reported.
If anyone's mining Findu for this data, it might be a problem.

Scott
N1VG

----------------------------------------------------------------------

Subject: Re: APRS on a PDA?
From: "DG2JW" <dg2jw@privateasylum.com>
Date: Tue, 29 Jun 2004 02:26:42 +0300
X-Message-Number: 21

Just to make a couple of corrections that might confuse our friend Skip.
WinCE/Pocket Windows have been reworked, renamed and repackaged as
"Windows Mobile" 2003  for Pocket PC (aka Pocket PC 2003) which is a
much more user friendly OS.
useful link >www.earthv.com/articles.asp?ArticleID=1586<

Actually the Ipaq has come along way in the past year. 4500/5500 series
have a real serial ports. That means there is no need for a dongle as
you call it (expansion pack). Although the connector is crap, I was able
to wire up my D7 and gps without effort :) Also with so many Bluetooth
enabled GPS units its easy to do a wireless installation today. I still
wish there were a Bluetooth enabled Kenwood D7 :) (dark-ages)

As far as storage goes. I have a 1GB IBM Microdrive for movies and music
on those long flights which is a CF card and yes uses an expansion pack
which doubles as a external battery. To be honest it is a bit expensive
which is a big downside. Matsushita currently has an SD memory card
that's 1GB capacity and there is also suppose to be  2GB version
sometime in Q3 2004 with  4GB, 8GB and 16GB capacities to follow in
2005. This kind of removes the need for Expansion packs. I also have a
SD card which I keep all my APRSCE, Pocket Streets and Tom-Tom navigator
maps on. Its 512MB and was less than 47 bucks.

The screens on cheaper IPAQ units had been awful for sure. My Palm M515
and Tungsten's are not much better. However again on my 5550 with 400MHz
Intel processor, the screen really stands out full sunlight or darkness.
There is also screen management which uses the biometric adapter to
since the light in the room and adjust the screen brightness
accordingly. That feature helps conserve the battery which is lithium. I
have sat in Heathrow with Bluetooth connection to my siemens S55 surfing
the internet over GPRS. The Ipaq got about 5 hours running time with the
backlight off. Without any wireless features enabled it can last about 6
hours of inside use and much more with the battery expansion pack. Again
this is not true with older hand help devices from any vendor. Anyway
the Ipaq 5550 has transflective TFT display with 65,536 colours and
screen resolution of  240 x 320. The screen also adjusts to view wide
screen which is great for reading.

Older PDAs, used transmissive LCDs with backlighting.  These screens
worked ok indoors in artificial light, but became practically useless
outdoors as the sunlight dimmed the screen to black.  Reflective TFTs,
like those used in the iPAQ models, overcame this problem.  Reflective
TFTs cannot be backlit, and so require front lighting.  The light from
the sun does not wash out these displays, but makes them sharper than
ever.  Reflective TFTs have the added bonus of not needing powered front
lighting when in the presence of an existing light source.  Whether it's
a well lit hallway or a sunny day, reflective screens can be used and
easily read with no self-lighting whatsoever.

Many new Pocket PCs, like the Dell Axim X30 and the iPAQ 4155, are using
new transreflective (or transflective) TFTs.  These can be transmissive
(lit from the back) and reflective (or front lit) simultaneously, making
them viewable indoors and out.  These displays have a brighter, crisper
look - colours appear more vivid, and black actually looks black.  With
transreflective TFTs, everything looks much  better.

Actually I ran APRSCE with a Bluetooth connection to my S55 over GPRS
for the first time. I think displaying stations is rather CPU intensive
so Ill check how long the battery will last. Anyhow its amazing how fast
stations appear over GPRS connection. The resolution is very good for a
pocketpc. I think though that one could easily get disappointed when
viewing poorly made maps for APRS or Street Navigation.

Don't get turned off Skip. But if you're going to spend the money on a
PDA, try to get your monies worth.

Ciao
Julian
OH8GEJ

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