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ZL3AI > APRDIG 21.11.06 06:20l 181 Lines 6383 Bytes #999 (0) @ WW
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Subj: [APRSSIG] Vol 29 #17, 1/1
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From: ZL3AI@ZL2BAU.#79.NZL.OC
To : APRDIG@WW
Today's Topics:
1. Re: Finding libaxu (wa7nwp)
2. San Diego Path Settings?? (Dave Aronovitz)
3. RE: San Diego Path Settings?? (Ray McKnight)
4. Re: San Diego Path Settings?? (Stephen H. Smith)
5. RE: Re: San Diego Path Settings?? (Cap Pennell)
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Message: 1
Date: Sun, 19 Nov 2006 10:21:11 -0800
From: wa7nwp <wa7nwp_at_jnos.org>
Subject: Re: [aprssig] Finding libaxu
>I'm looking for libaxu library but the "libaxu" project is gone from
>sourceforge and I did not find any other place to download it.
>
>I want to set up an APRS Packet counter similar to
>http://richdea5.no-ip.org/ for our region of the world.
Sourceforge has become too bloated.. I'll have a hog-counter package
put together for downloading as soon as possible.
73
Bill - WA7NWP
------------------------------
Message: 2
Date: Sun, 19 Nov 2006 12:06:17 -0800 (PST)
From: Dave Aronovitz <k1lpi_at_yahoo.com>
Subject: [aprssig] San Diego Path Settings??
de K1LPI-1,
Any one on the list using APRS in San Diego? It too me several days of
beaconing to get into the system. Only one packet and report reached FindU
and none since. I am at N32 47.79, W 117 13.67. Mission Bay at Campland.
I have tried wide1-1, wide2-2, and now trying relay,wide1-1,wide2-2.
Hearing very few packets on the frequency. Running 5 watts and a
KenwoodTH-D7A.
Also tried running higher power with an amp. However, I wonder if the delay
on keying up drops bits? Is there a way to give a delay to the kenwood
before the first packet is sent?
73 de K1LPI-1
K1LPI's Little House on the Highway
cell 408 307-2831, please leave voicemail
Please update address books to k1lpi_at_yahoo.com
------------------------------
Message: 3
Date: Sun, 19 Nov 2006 12:22:16 -0800
From: "Ray McKnight" <shortsheep_at_worldnet.att.net>
Subject: RE: [aprssig] San Diego Path Settings??
You're approaching this all wrong.
You are in an APRS dense area, no doubt! Lot's of mountain-top digi's, you
should be hearing an almost continuously busy channel. Get rid of the amp,
it's definitely *not* needed in San Diego! Look at your antenna first. It
sounds as though you have an external antenna - PUT AN SWR METER ON IT, I'd
bet a bottom dollar to a donut there's something wrong, most likely in a
crushed coax (do you run it in through a door closing the door or a window
on it?), loose connector, cold solder joint. Once you've fixed the problem
go back and change your path to WIDE2-1. You should then hear hundreds of
packets and your TX problem won't be a problem. TX isn't what's broken.
------------------------------
Message: 4
Date: Sun, 19 Nov 2006 12:30:32 -0800
From: "Stephen H. Smith" <wa8lmf2_at_aol.com>
Subject: [aprssig] Re: San Diego Path Settings??
k1lpi_at_yahoo.com wrote:
>de K1LPI-1,
>
>Any one on the list using APRS in San Diego? It too me several days of
>beaconing to get into the system. Only one packet and report reached
>FindU and none since. I am at N32 47.79, W 117 13.67. Mission Bay at
>Campland.
>
>I have tried wide1-1, wide2-2, and now trying relay,wide1-1,wide2-2.
>Hearing very few packets on the frequency. Running 5 watts and a
>KenwoodTH-D7A.
>
>Also tried running higher power with an amp. However, I wonder if the
>delay on keying up drops bits? Is there a way to give a delay to the
>kenwood before the first packet is sent?
WIDE2-2 or WIDE1-1,WIDE2-2 are the right paths for southern California.
Unfortunately, geography is conspiring against you.
1) San Diego is an area of rolling hills and valleys, making the coverage
of any nearby low-level digipeater very spotty.
2) The coastline from Ensenada, Mexico, past San Diego north all the way
up to Santa Barbara (about 90 miles north of L.A.) is a concave curve,
yielding a low-loss path across water from just about anywhere on the coast
to anywhere else. This curving basically sea-level coastal strip, home to
17 million plus, is backed by 2000-5000 foot mountain ranges where,
naturally, everyone places their radio systems.
3) Any high-elevation digipeater in any of the mountains framing this
coastal arc hears absolutely non-stop traffic from the congested L.A.
metropolitan area.
[From my vantage point in Pasadena (about 15 mi northeast of downtown L.A.
and about 35 mi inland from the coast) at 900', I NEVER hear more than 2-3
seconds of dead air on 144.39, even at 3:00 AM. When I beacon with a
single-hop path from a 10W base station, I will hear THREE separate
re-transmissions from three separate "super-WIDE" digis on different
5000-foot plus mountain tops.]
Bottom line, nothing less than 50 watts stands a chance in SoCal unless you
happen to be practically underneath one of the digipeaters, as I am. [ I am
about 3 miles southwestof the N6EX-3 digi in the San Gabriel mtns, and
about 3000 feet below it with a line-of-site clear shot. I can hit it
fairly consistently with a TH-D7 on HI power. ]
--
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: 5
Date: Sun, 19 Nov 2006 14:12:49 -0800
From: "Cap Pennell" <cap_at_cruzio.com>
Subject: RE: [aprssig] Re: San Diego Path Settings??
>WIDE2-2 or WIDE1-1,WIDE2-2 are the right paths for southern California.
Almost. Two digipeater hops in all directions are plenty for routine use.
Courteous two hop paths are
Base or Home: WIDE2-2 Mobile or portable: WIDE1-1,WIDE2-1
Three hop paths are not helpful on the already congested VHF frequency.
WIDE1-1,WIDE2-2 is a three hop path.
http://info.aprs.net/wikka.php?wakka=Paths
73, Cap KE6AFE
News, discussion, and questions about APRS in California (and nearby
portions of adjacent states):
http://groups.yahoo.com/group/ca_aprs/
------------------------------
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End of aprssig Digest, Vol 29, Issue 17
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