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ZL3AI > APRDIG 13.02.07 05:36l 264 Lines 9250 Bytes #999 (0) @ WW
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Subj: [APRSSIG] Vol 32 #9, 2/3
Path: DB0FHN<DB0MRW<DK0WUE<SP7MGD<CE8FGC<VK6HGR<ZL2BAU
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From: ZL3AI@ZL2BAU.#79.NZL.OC
To : APRDIG@WW
Message: 8
Date: Thu, 8 Feb 2007 17:09:51 -0500
From: "Wes Johnston, AI4PX" <wes_at_kd4rdb.com>
Subject: Re: [aprssig] APRS Icons on Garmin Receivers
While it's a neat idea..... packet audio is muted for use with voice alert.
Also, you forfeit the smart beaconing of the T2. Not that either of these
are deal breakers.... You know, sometimes when I plug my d700 in, it comes
on, and other times it does not... something in the PM modes, but I'm just
not sure what. Sure would be nice if the T2 power switch option would auto
turn on my d700 at the power jack as soon as my GPS gets a fix.
Wes
On 2/8/07, Jason Winningham <jdw_at_eng.uah.edu> wrote:
>
>
>On Feb 8, 2007, at 12:57 PM, william.diaz_at_comcast.net wrote:
>
>>IOW, can it be used with an existing TNC or D7/D700?
>
>It's a replacement for an existing TNC or D7/700.
>
>IMO, if it had messaging capability it would be superior to the APRS
>application in the D7/700 when it is used in conjunction with a
>mapping GPS. As a digipeater it's already superior to any device you
>can name, except maybe a digi_ned installation.
>
>All Scott's stuff, hardware and software, are open source (this is
>the reason to buy an OT and not a TT). Someone sufficiently
>determined could take the work Scott has made available and create
>the system you describe.
>
>Hmmm, now that I think about it, you can feed the APRS audio out from
>your D700 to the T2 and split the TX and RX lines to the GPS, routing
>them to the D700 and T2 respectively, and that would do it. I may
>have just found a new project for the evening. (:
>
>-Jason
>kg4wsv
------------------------------
Message: 9
Date: Thu, 8 Feb 2007 14:13:52 -0800 (PST)
From: M J <mjandthegang_at_yahoo.com>
Subject: [aprssig] Smart Beaconing and Corner Pegging
Is there somewhere that describes the computer logic behind these concepts?
I've heard people mention them, and would simply like to understand them
more. Thank you!
MJ
------------------------------
Message: 10
Date: Thu, 8 Feb 2007 17:32:24 -0500
From: "Robert Bruninga" <bruninga_at_usna.edu>
Subject: RE: [aprssig] Smart Beaconing and Corner Pegging
>Subject: [aprssig] Smart Beaconing and Corner Pegging
>
>Is there somewhere that describes the computer logic behind
>these concepts? I've heard people mention them, and would
>simply like to understand them more. Thank you!
There is smart beaconing which sends packets at ideal positions and changes
to give a smoother track, and higher rate when maneuvering. But there is
also the newer concept of Proportional Pathing which maintains a high rate
DIRECT and local, while reducing the rate farther away, actually reducing
the load on the network.
And proportional pathing is independent of user settings, making it much
less vulnerable to user mistakes which seems to be the biggest problems
with users and paths and tracker settings.
SO there are two schools of opinion... I think Proportional Pathing has a
lot to offer. Here is the link to Proportional Pathing:
http://www.ew.usna.edu/~bruninga/aprs/ProportionalPathing.txt
Bob, WB4APR
------------------------------
Message: 11
Date: Thu, 08 Feb 2007 23:31:41 +0100
From: "Jan T. Pharo" <la2bba_at_jpharo.net>
Subject: Re: [aprssig] RE: European Digipeating standards
"Cap Pennell" <cap_at_cruzio.com>, Thu, 8 Feb 2007 10:03:11 -0800:
>Luckily, it's a short step from RELAY,WIDEn-N to the improved over-the-air
>efficiency of more modern "traceable WIDEn-N" alone, and any fill-in digis
>can operate WIDE1-1 instead of RELAY. The improvement can even be
>implemented one station at a time, so there's no need to wait for the better
>modern system. UI-View32 can be used to do the digipeating job handling
>both systems at once.
You will of course be aware that the highly dense populated areas with high
terrain walls that your have especially in California, have a _much_ larger
APRS user density and a _very_ different topography than most areas in
Europe; mountain top digipeaters covering areas with several million
inhabitants aren't there. Also, Europe are several independent nations with
independent amateur radio associations and different radio frequency
legislations (we have - for all practical purposes - one band plan,
though).
I have said previously - and am still saying - that there should be an
agreement, preferrably through the IARU region 1, about the parameters in
this area, rather than groups of digipeater owners doing one solution and
other groups or individuals in the neighbouring areas doing another
solution, making up a mess for travelling APRSers inside each country or
crossing international borders. Unlike north America, we europeans can
cross almost any international border inside Europe with car or
walking/bicycling without even stopping for any customs or passport
control, so the need for _one_ system is there; the openness to get to a
mutual agreement, howeveer, isn't. Each party has a religious belief in
their own system; RELAY,TRACEn-N, RELAY,WIDEn-N (traceable or not), the US
WIDE1-1,WIDEn-N (these are for mobiles/portables).
--
73 de Jan, LA2BBA
Hvaler, Norway
------------------------------
Message: 12
Date: Thu, 8 Feb 2007 15:37:09 -0700
From: Tom Russo <russo_at_bogodyn.org>
Subject: Re: [aprssig] Smart Beaconing and Corner Pegging
>Subject: [aprssig] Smart Beaconing and Corner Pegging
>
>Is there somewhere that describes the computer logic behind
>these concepts? I've heard people mention them, and would
>simply like to understand them more. Thank you!
The Smartbeaconing(tm) and corner pegging algorithms are described in detail
on the HamHud site:
http://www.hamhud.net/hh2/smartbeacon.html
HTH,
T.
--
Tom Russo KM5VY SAR502 DM64ux http://www.swcp.com/~russo/
Tijeras, NM QRPL#1592 K2#398 SOC#236 AHTB#1 http://kevan.org/brain.cgi?DDTNM
"And, isn't sanity really just a one-trick pony anyway? I mean all you get is
one trick, rational thinking, but when you're good and crazy, oooh, oooh,
oooh, the sky is the limit!" --- The Tick
------------------------------
Message: 13
Date: Thu, 8 Feb 2007 16:40:46 -0600
From: Jason Winningham <jdw_at_eng.uah.edu>
Subject: Re: [aprssig] APRS Icons on Garmin Receivers
On Feb 8, 2007, at 4:09 PM, Wes Johnston, AI4PX wrote:
>While it's a neat idea..... packet audio is muted for use with
>voice alert.
I'll have to admit I've never bothered with voice alert.
>You know, sometimes when I plug my d700 in, it comes on, and other
>times it does not...
Mine is consistent: it never does.
I put together a little microcontroller circuit that sends the magic string
for powering on to the D700 serial port. I also use the APO2 to manage
power to the D700 and GPS.
My list of things to do includes building a new circuit that watches
vehicle power and turns the D700 off and on as appropriate. I may not get
to that one for a while, since what I have now works. (:
-Jason
kg4wsv
------------------------------
Message: 14
Date: Thu, 8 Feb 2007 10:17:59 -0800 (PST)
From: Philip Koban <pek53_at_yahoo.com>
Subject: [aprssig] Re: aprssig Digest, Vol 32, Issue 8
Hello All,
I am new to this group and I am a fairly new to Amateur Radio and APRS I
was wondering if anybody can help me connect a Palm OS APRS software to a
Kenwood HT-D7AG and a Garmin eMap I am having problems figuring out how to
wire it all together. I have a Palm Treo 650 I found this picture and this
Operator I can't find Michael Musick N0QBF to ask him how he did his Can
Anybody Help me Please
Sincerely,
Philip Koban K0BAN
------------------------------
Message: 15
Date: Thu, 8 Feb 2007 21:28:50 -0800
From: "Eric Goforth" <eric_at_goforthtech.com>
Subject: [aprssig] Tour de Palm springs
For those interested;
The 2007 Tour de Palm Springs is this Saturday. We have setup a page for
everyone to watch the APRS action.
http://www.aprsdepot.com/TDPS/
Controls are right below the map.
Here's to a succesfull event!
73's
Eric J. Goforth, N6GOF
www.APRSDEPOT.com
------------------------------
Message: 16
Date: Fri, 9 Feb 2007 10:25:11 -0000
From: "Dave Baxter" <dave_at_emv.co.uk>
Subject: RE: [aprssig] Need GPS for D700
Hi Chris..
Any GPS that can spit out NMEA data over RS232 serial, will work with the
D700, D7, Ui-View, Xastir etc...
Anything that only has a USB interface, will never work on it's own, you'll
need another PC to interface between RS232 and USB, as it needs to work as
a USB "Host" not as the common USB<>RS232 adapters do, as they are
"Devices".
No one yet (to my knowledge at least) makes one that works, by hosting a
"modern" USB device, and then spitting out "Legacy" RS232 data.
USB only GPS's can be made to work with Ui-View/Xastir etc, but only if
they come with, or will work with other software that creates a virtual
serial port for the users program to use.
Again, any RS232 capable GPS that output's true NMEA data will work with a
radio on it's own. The basic yellow eTrex for example, works well, I have
one. But don't buy the expensive Garmin power/data cable, look up any of
the third party suppliers..
http://www.pfranc.com/cables/index.shtml for example.
73.
Dave G0WBX.
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