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ZL3AI > APRDIG 06.07.03 10:23l 268 Lines 9357 Bytes #999 (0) @ WW
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From: ZL3AI@ZL3VML.#80.NZL.OC
To : APRDIG@WW
TAPR APRS Special Interest Group Digest for Thursday, July 03, 2003.
1. Re: MObile APRS services
2. 60-meter PropNET^31
3. Re: FT-1500M is Mini DIN; FT-2600 is DB-9
4. second net
5. Leave it up to the PRSG...
6. Garmin
7. Re: Leave it up to the PRSG...
8. compressed packets
9. Re: compressed packets
10. Re: compressed packets
11. Re: compressed packets
12. GPS and KPC3 Combo
13. Re: GPS and KPC3 Combo
14. Re: Wireless Hunters on the Prowl
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Subject: Re: MObile APRS services
From: "Demetre Valaris" <sv1uy@sv1uy.ampr.org>
Date: Thu, 03 Jul 2003 13:08:25 +0300
X-Message-Number: 1
>>The channel is clear when I decide to transmit.
>
>You mean you actually turn off the squelch (remember, you got your tone
>squelch on) to listen for activity before you transmit?
>
>>It fails the test of common sense. In fact, it would be quite a stupid
>>thing to do...
>
>Dang, and I thought I had an awesome idea! The test of common sense; who
>would've thought such a thing existed.
I get the impression that someone is looking for GHOSTS. We should call the
Ghost Busters I think. Am I right or am I right?
Voice Alert is a good idea. Noone is forced to use it of course. Only the
ones who think is useful and the ones who wants to use it. Best thing I
ever did on APRS here was to activate VOICE ALERT!!!
===
73 de Demetre SV1UY
e-mail: sv1uy at sv1uy.ampr.org
PACKET MAIL: SV1UY@SV1UY.ATH.GRC.EURO
http://www.athnet.ampr.org/~sv1uy
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Subject: 60-meter PropNET^31
From: "Ev Tupis (W2EV)" <w2ev@arrl.net>
Date: Thu, 03 Jul 2003 06:57:49 -0400
X-Message-Number: 2
Here's an interesting opportunity for those wishing to study propagation on
60-meters. G0DJA has been operating a PropNET^31 station (APRS using
PSK31) on the frequency of 5.290 MHz USB (a transceiver frequency of
5.288.5 USB + 1500 hz PSK31 audio). More information on the operation may
be obtained at: http://www.PropNET.org
This operation offers a unique opportunity to those outside of the UK. How
so? Because (for instance) this is a "channel" that is not assigned for use
in the USA for transmitting. One can monitor it for receptions of G0DJA
and use that as a gauge to know when the band is open to the UK. When a
reception is made, simply QSY to the "common channel" of 5.405 USB and make
some noise on SSB...knowing that signals are propagating! What better use
of limited spectrum than to try when you know the path to be open? :)
I'm not savvy as to how 60-meters is allocated anywhere else...but if you
are capable of TXing along with G0DJA...and live in another part of the
world, please do join! PropNET transmissions consume only 20-seconds every
5-minutes or so.
Please visit the website for more detailed information.
Ev Tupis, W2EV
PS:
UK Allocation: "channel center" frequencies--5332, 5348, 5368, 5373 and
5405 kHz
UK Allocation: must obtain a special Notice of Variance (NoV) to use the
5-MHz channels available to them -- 5260, 5280, 5290, 5400
and 5405 kHz
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Subject: Re: FT-1500M is Mini DIN; FT-2600 is DB-9
From: Dave VanHorn <dvanhorn@cedar.net>
Date: Thu, 03 Jul 2003 06:56:40 -0500
X-Message-Number: 3
>Dave,
>If the 1500 loses 12v, will it come back to the same frequency and
>configuration
>when 12v is restored?
>Ev, W2Ev
Yes. It even turns back on automatically.
It's just about the ideal mobile, IMHO.
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Subject: second net
From: wes@johnston.net
Date: Thu, 03 Jul 2003 13:54:04 -0400 (EDT)
X-Message-Number: 4
I'm running xastir on second.aprs.net:14580 with filter parms set to t/m
r/34/-80/500 . What's got me puzzled is the inclusion of many stations from
europe in my station list. Are these stations passed thru the javafilter b/c
they recently send a message or somthing? Not that they sent one to me...
I've had no contact with them other than seeing them on the station list...
there are many european stations, I've only listed two here.
dl4mar
f1ucl
Wes
ham callsign: kd4rdb
find me: http://wesvan.zapto.org
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Subject: Leave it up to the PRSG...
From: Alex <kr1st@amsat.org>
Date: Thu, 03 Jul 2003 14:08:56 -0400
X-Message-Number: 5
Check this out:
(from http://www.provide.net/~prsg/mursrec2.htm#pet )
<quote>
13. The requirement should be that no MURS station should be hardware
enabled to transmit IF that station's associated receiver is in any form
of selective muting. This should include ALL muting protocols, those
currently in use (such as CTCSS, DCS, tone-burst, etc.) and any future
muting protocols.
</quote>
What this means is that if the FCC adopts this additional requirement,
Voice Alert (and certain automated transmissions) would not be allowed
on MURS. And no, I don't support this at all!
Another proposal/requirement Mr Moore wants to have adopted by the FCC
has to do with interconnection of MURS devices with networks. I think he
wants an expansion of the term "public network" to include more than
just the public switched network. This could effectively kill any
application of the Findu class, for instance.
For those interested in doing something interesting with MURS (APRS wise
perhaps), you better watch out and perhaps consider taking some action.
Mr. Moore and his one man show, PRSG, has already succeeded making live
a bit more restrictive on the GPS/FRS/Rhino front.
You have up to July 10th to file your comments with the FCC on this and
other issues Mr. Moore. You can find docket numbers and such on the page
I've mentioned above.
73,
--Alex KR1ST
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Subject: Garmin
From: Bob Bruninga <bruninga@usna.edu>
Date: Thu, 3 Jul 2003 14:34:19 -0400 (EDT)
X-Message-Number: 6
APRSSIG:
Do we have any moles at Garmin?
Or at least anyone there that understands what APRS is?
I need a point of contact.
de WB4APR@amsat.org, Bob
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Subject: Re: Leave it up to the PRSG...
From: WA8LMF2@aol.com
Date: Thu, 3 Jul 2003 16:23:07 EDT
X-Message-Number: 7
In a message dated 7/3/2003 11:15:12 AM Pacific Daylight Time,
kr1st@amsat.org writes:
><quote>
> 13. The requirement should be that no MURS station should be hardware
>enabled to transmit IF that station's associated receiver is in any form
>of selective muting. This should include ALL muting protocols, those
>currently in use (such as CTCSS, DCS, tone-burst, etc.) and any future
>muting protocols.
></quote>
Nothing sinister or new about this.
This is just good operating practice and HAS ALWAYS been the rule for
commercial/business/public safety land mobile applications.
The mic hangup brackets on Motorola, GE/Ericsson/MAcom,Kenwood, etc
professional radios are wired with a contact that disables any PL or other
tone squelch when you pick up the mic to talk. Note that the hanger button
on the back of the mics of these radios is always a metal one that
completes an additional circuit in the mic cord when the mic is hung, to
enable the tone squelch. [ This technique FORCES you to monitor the
channel in-the-clear as soon as you pick up the mic. ]
Even the ham Kenwood TH-D7 has a monitor button that overides the squelch
(PL or carrier) to listen to the channel before transmitting....
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
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Subject: compressed packets
From: "Wes Johnston" <wes@johnston.net>
Date: Thu, 3 Jul 2003 18:32:30 -0400
X-Message-Number: 8
I'm stymied...
I pulled
http://www.findu.com/cgi-bin/raw.cgi?call=kc4pl-9&start=24&length=24&time=1
from findu.com and noticed that some of his packets were compressed (he runs
a kenwood d700), and some weren't.
20030702165033,KC4PL-9>SS5W7X,N5CWH-3*,WIDE2,qAS,KD4BNQ-1:'m)(l8>/]KC4PL-9
20030702165041,KC4PL-9>APK101,KE4CJA-4*,WIDE2,qAS,WA6OFT-15:@021751z3357.76N
/08113.11W>028/000/Mic-E/M1/Enroute>/]KC4PL-9
20030702210954,KC4PL-9>SS5W7W,N4BAM-3*,WIDE2-1,qAo,KC4PL:'m)'l!Q>/]KC4PL-9
20030702211319,KC4PL-9>APK101,KA4YMY-9*,WIDE2-1,qAS,WA6OFT-15:@022213z3358.3
0N/08112.90W>279/040/Mic-E/M1/Enroute>/]"52}
I've been in contact with wa6oft all day and we've been trying to track this
down. WA6OFT-15 is on firenet and should not have heard the packet, even
though the qAS scheme (to the best I can read it) says that he is the IGATE
for these packets. I looked up ke4cja-4 and that station is a stand alone
digipeater.
The reason I'm hunting this down is to find operators of software which
decompresses packets on the fly - such as older copies of winaprs. Are
there any others?
Is this a case were I just need to run TRACEn-n for a day or two?
Wes
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