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ZL3AI > APRDIG 17.05.03 10:13l 89 Lines 2858 Bytes #999 (0) @ WW
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Subj: TAPR Digest, May 13, 3/3
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From: ZL3AI@ZL3VML.#80.NZL.OC
To : APRDIG@WW
Subject: Re: WinAPRS Help
From: "Ray McKnight" <shortsheep@worldnet.att.net>
Date: Tue, 13 May 2003 19:37:48 -0700
X-Message-Number: 26
---<snip>---
Nicer if we could keep the TIGER files
zipped, unzip them when used, rezip when finished with them.
Tony
---<snip>---
You can already do this.
Just set up a compressed volume under Winderz.
All files in that volume will be compressed by default, but uncompressed as
they are accessed. Your suggestion of actually zipping and unzipping would
likely work for a few minutes, then eventually crash the system. Not only
is there unacceptable potential for data corruption, but the disk
fragmentation would be tremendous. Not to mention that there are very few
"free" zip utilities that can be distributed for a project like this
without royalty. We're notoriously cheap. The license fee would cost more
than a new hard drive!
I really don't see the need for this anyway. Hard drive space is so cheap
now and there are so many alternatives to storage such as firewire, USB,
external SCSI, you name it.
Just how much data real estate do all the TIGER files need?
Can anyone give us a good number for the entire TIGER data set?
73's
Ray - WB3ABN
Kingston, WA
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Subject: d700 not decoding?
From: "Wes Johnston" <wes@johnston.net>
Date: Tue, 13 May 2003 22:48:17 -0400
X-Message-Number: 27
I copied the following packet off the air on my PC.
N3MRA-12>GPSMV,KD4BNQ-3,N2EDE-3*,WIDE2-2:$GPRMC,005926,A,3708.1673,N,08024.7
515,W,0.0,177.4,140503,8.1,W,A*1B
Out in my car with the d700 in aprs mode, it only displays the callsign and
'??' . I know this is a valid position.... why isn't it being decoded /
displayed by the kenwood?
Wes
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Subject: Broadband over power lines (Was: RE: The end of HF)
From: "Keith Kotch" <kkotch@cfl.rr.com>
Date: Tue, 13 May 2003 23:05:06 -0400
X-Message-Number: 28
Do a "google" search for "broadband over power lines" and you'll come up
with several articles concerning trials and locations going on now. May
be a starting point for getting some amateur testing done.
Keith, KF4BXT
----------------------------------------------------------------------
Subject: Re: d700 not decoding?
<LYR28261-132710-2003.05.13-22.40.41--millardj#earthlink.net@lists.tapr.org>
From: Jay Millard <millardj@earthlink.net>
Date: Tue, 13 May 2003 23:38:40 -0400
X-Message-Number: 29
If you go to http://home.mira.net/~gnb/gps/nmea.html#gprmc and look closely
at the example, you will find that lat/lon is expressed to only two decimal
places. It appears that the packet in this example expresses them to four
places. I suggest that might cause the problem.
73's
Jay
KD1LY
---
END OF DIGEST
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