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ZL3AI > APRDIG 08.11.06 02:05l 211 Lines 8128 Bytes #999 (0) @ WW
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Subj: [APRSSIG] Vol 29 #6, 1/1
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To : APRDIG@WW
Today's Topics:
1. RE: Re: *** APRS TNC Test CD Now Available *** --- Can't Play It
(Dave Baxter)
2. RE: Re: *** APRS TNC Test CD Now Available *** --- Can't Play It
(scott_at_opentrac.org)
3. RE: Re: *** APRS TNC Test CD Now Available *** --- Can't Play It
(Stephen H. Smith)
4. Remote monitoring (Bogdan, Rick)
5. RE: Remote monitoring (scott_at_opentrac.org)
----------------------------------------------------------------------
Message: 1
Date: Mon, 6 Nov 2006 12:39:35 -0000
From: "Dave Baxter" <dave_at_emv.co.uk>
Subject: RE: [aprssig] Re: *** APRS TNC Test CD Now Available *** ---
Can't Play It
Hi..
I've found in the past, that you sometimes have to have Nero, or whatever
burning software you use and only that software running (no background
stuff, other than the usual winders suspects) even sometimes needing the
network cable pulling, so as to create a disk that will play on an audio
player without skipping...
However, I just unzipped the download, saved the contents somewhere I could
find it later, started Nero, then went to burn an image, selected the drive
to use, pointed it at the unzipped file and let fly, then went and did
something else instead while the PC got on with it.
When I got back later. Success, even with all sorts of other stuff running
(some emails came in at that time!) guess a fastish CPU, loads of RAM, and
a CD-RW drive with it's own buffer underun protection helps somewhat. W2k,
512M ram, P4 1.4G, and some "Far Eastern Origin" OEM ATAPI-IDE CD-RW drive.
Even then, I tend to not burn audio CD's any faster than 4x, just to make
sure. The system is supposedly capable of much faster rates, but in
practice, you end up with "skippy" disc's if you push it much past 6x...
Thinking about it, having a "data" track at the beginning, not the end of
the compilation may indeed screw up some players, probably the more capable
ones too, after all my old Discman just "played" it (silently) as any other
track, perhaps some players "see" a data track, then assume the rest is
data? Most other mixed format CD's I've seen, have the audio stuff first,
then the other content... Not tried it myself with WiMP yet.
WiMP, is however renown for sometimes doing odd things with mixed content
disks, and also for the several odd way's to make it behave, though it does
seem to vary from one machine to another.
However, in this case I for one, much to my pleasure and surprise, have not
(yet) had any real problems with the disk. I've still not sent the
contents to a TNC, way too busy, and the shack is being dismantled prior to
some building work at the moment too.
73
Dave G0WBX.
------------------------------
Message: 2
Date: Mon, 6 Nov 2006 06:45:58 -0800
From: <scott_at_opentrac.org>
Subject: RE: [aprssig] Re: *** APRS TNC Test CD Now Available *** ---
Can't Play It
>When I got back later. Success, even with all sorts of other stuff
>running (some emails came in at that time!) guess a fastish CPU, loads
>of RAM, and a CD-RW drive with it's own buffer underun protection helps
>somewhat. W2k, 512M ram, P4 1.4G, and some "Far Eastern Origin" OEM
>ATAPI-IDE CD-RW drive.
They're still getting better, in my experience. I remember the first
Pinnacle Micro SCSI drives I used, at 1x and 2x respectively. On one of
the fastest machines in the building (a dual Pentium Pro, I think) you'd
have to build the image, defrag the hard drive, close everything, start the
burn, and very carefully move away from the computer and avoid stepping
anywhere near it lest the vibrations in the floor upset the drive. And
you'd still make coasters about half the time.
I still burn discs at around half the drive's rated speed. I have yet to
see a 48x or 52x drive, even with appropriately marked media, get better
than a 75% success rate at full speed.
Scott
N1VG
------------------------------
Message: 3
Date: Mon, 06 Nov 2006 09:22:34 -0800
From: "Stephen H. Smith" <wa8lmf2_at_aol.com>
Subject: [aprssig] RE: Re: *** APRS TNC Test CD Now Available *** ---
Can't Play It
dave_at_emv.co.uk wrote:
>Hi..
>
>Thinking about it, having a "data" track at the beginning, not the end
>of the compilation may indeed screw up some players, probably the more
>capable ones too, after all my old Discman just "played" it (silently)
>as any other track, perhaps some players "see" a data track, then assume
>the rest is data? Most other mixed format CD's I've seen, have the
>audio stuff first, then the other content... Not tried it myself with
>WiMP yet.
>
>WiMP, is however renown for sometimes doing odd things with mixed
>content disks, and also for the several odd way's to make it behave,
>though it does seem to vary from one machine to another.
1) I created the disk originally with Roxio Easy CD Creator 6.0. CD
Creator's default behavior for a "Mixed Mode Disk Project" is to place the
data track first, and then the audio track(s).
2) Using Easy CD Creator, I then made an image file in Roxio .CIF format
because the widely used and nearly universal .ISO format only supports
data-only CDs; not audio or mixed-mode disks.
3) I initially only posted the disk image in the Adaptec/Roxio .CIF
format.
4) Someone else then converted the .CIF image to Nero .NRG format using a
third-party format-conversion utility. Given that all the complaints so far
on various lists has involved disks made from the Nero version, I am
wondering if the CIF->NRG conversion was less than perfect. I simply have
no way of knowing if the conversion was perfectly accurate. Since I don't
have or use Nero Burning ROM, I can't test or vouch for the.NRG version of
the file.
Finally,
5) Win 2000's "CD Player" applet (not Media Player) plays the disk just
fine, allowing you to easily skip over the first (data) track that some CD
drives mistakenly think is an unplayable audio track. The applet
"CDplayer.exe" produces a user interface that looks like a typical car
stereo CD player. It is a single 330K exe file located in the /SYSTEM32
subdirectory underneath the main Windows directory. This file requires no
installation or hooks to the Windows registry. It can be copied from a Win
2K system and easily used with Windows XP.
--
Stephen H. Smith wa8lmf (at) aol.com
EchoLink Node: 14400 [Think bottom of the 2M band]
Home Page: http://wa8lmf.com --OR-- http://wa8lmf.net
NEW! TNC Test CD
http://wa8lmf.net/TNCtest
JavAPRS Filter Port 14580 Guide
http://wa8lmf.net/aprs/JAVaprsFilters.htm
"APRS 101" Explanation of APRS Path Selection & Digipeating
http://wa8lmf.net/DigiPaths
Updated "Rev G" APRS http://wa8lmf.net/aprs
Symbols Set for UI-View,
UIpoint and APRSplus:
------------------------------
Message: 4
Date: Mon, 6 Nov 2006 12:33:13 -0500
From: "Bogdan, Rick" <rbogdan_at_ursinus.edu>
Subject: [aprssig] Remote monitoring
Hello to the group,
I'm looking into a way of remotely monitoring a repeater site via aprs. We
have a Tiny-2 running as a digi presently (no computer). I'm specifically
looking to monitor the power and possibly the temp. My question is can this
existing tnc do it?
Rick ka1udx
------------------------------
Message: 5
Date: Mon, 6 Nov 2006 09:55:17 -0800
From: <scott_at_opentrac.org>
Subject: RE: [aprssig] Remote monitoring
Do you want the telemetry and digi to be the same device? My Tracker2 will
do that, but it's not in regular production yet.
The OpenTracker will give you temperature and voltage telemetry. With a
little tweaking, you can share a single radio for the existing TNC and the
OpenTracker. I'm doing just that in my garage, where I've got a radio
shared between two trackers and a TNC. I just use DB9 'Y' cables to
connect them, and I think I had to replace one diode with a jumper to get
the OpenTrackers to detect when the radio is in use by one of the other
devices.
Scott, N1VG
http://n1vg.net/opentracker
------------------------------
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