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ZL3AI > APRDIG 14.02.07 06:06l 247 Lines 8792 Bytes #999 (0) @ WW
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Subj: [APRSSIG] Vol 32 #11, 4/5
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From: ZL3AI@ZL2BAU.#79.NZL.OC
To : APRDIG@WW
Message: 27
Date: Sun, 11 Feb 2007 07:36:30 -0600
From: "Robbie, wa9inf" <mwrobertson_at_comcast.net>
Subject: Re: [aprssig] APRS Icons on Garmin Receivers
I for one have made several qso's due to "Voice Alert" that I would not
have made on some of my trips out of town.. My status report, or others, is
useless unless you have a laptop displaying who are around you. It is just
too dangerous to relying on the D7/D700's display for observing who is near
you...
My status/comment info basically has only resulted in a few calls on my
"listening" frequency from base stations.. I think more contacts could
easily be made if more mobiles would use the Voice Alert while traveling.
When I have used the laptop running UI-View hooked up to my KPC3+ tracker
in the trunk, I've made a few contacts by seeing mobiles and calling them
on their listening frequency, and they were quite shocked that a nearby
mobile called them!
I would advise though, that using a laptop/GPS display and watching the
screen while driving, is not really a safe way to travel without exercising
extreme caution!
Robbie
P.S. NO base stations should have Voice Alert activated
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Message: 28
Date: Sun, 11 Feb 2007 08:50:01 -0500
From: Randy Allen <ka0azs_at_earthlink.net>
Subject: Re: [aprssig] APRS Icons on Garmin Receivers
Joel Maslak wrote:
(has
>*anyone* ever made a random voice alert contact? It seems to be far
>easier to work rare DX than to talk to another APRS user).
I've done it a few times. A couple of locals, some truckers moving through
the area on the Interstate, once on a road trip.
It's also handy for "domestic" communications.
My wife usualy turns down the volume on the voice side, but the APRS side
stays turned up. If she hears a packet she turns up the volume on the
voice side in case it's me.(she won't bother with actually seeing who's
call is being transmitted). If I hear her one of her packets, I do a quick
ID on the APRS side and she turns up the volume on the voice side and calls
me.
If we are out of simplex range, she knows the tone for an incoming message
and makes sure the volume is up on the voice side just in case I'm trying
to ge ahold of her. (need to get her a voice module one of these days...)
-- Randy Allen, KAĜAZS
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Message: 29
Date: Sun, 11 Feb 2007 09:31:37 -0500
From: "Robert Bruninga" <bruninga_at_usna.edu>
Subject: [aprssig] D700-external PIC processing
Wow, neat info!
>>In "APRS" mode, the D700's internal firmware creates an
>>APRS terminal on the control head's screen and sends
>>nothing to the serial port.
>
>... [but] There is a command you can send to put it in a
>... monitor mode so that you can see lots of data:
>
>LIST 01,KG4WSV-7,34338200087047001,/#,,4,S,W3,ALn X-Digi
>LIST 01,K4JCH-6,34356200086203901,/-,,4,,Johns home
DIGI,5230--------
>LIST 01,N4JDB-1,34263900087228301,/,,6,,West Lawrence Co.,
A,295000027000
Looks like CALL,LAT,LONG,SYMBOL,CSE,SPEED, then STATUS TEXT?
My guess is that CSE is stored as 1-to-8 for the cardinatl points of the
compass. The above examples have no speed? Not sure about that.
But if this is true, then SOMONE should write a PIC processor to parse out
of theese packets, any FREQUNCY info an either display it or something. I
wonder if you SELECT one of these stations on the LIST and hit OK, will it
output the above data for that station?
If so, then a PIC couild then parse out the frequency info and put it back
into side B and there you have one-button TUNE capability to someone that
is transmitting his frequency.! The format for FREQUENCY has been
established as the first 10 bytes of the STATUS text field if available.
Bob
WB4APR
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Message: 30
Date: Sun, 11 Feb 2007 09:36:55 -0500
From: Stan Horzepa <stanzepa_at_sbcglobal.net>
Subject: [aprssig] APRSSIG
Thank you for your interest in subscribing to APRSSIG. In order that I may
complete the subscription process, please email me your full name and
callsign (if any) for confirmation purposes.
Stan Horzepa, WA1LOU, APRSSIG administrator
------------------------------
Message: 31
Date: Sun, 11 Feb 2007 09:44:52 -0500
From: "Robert Bruninga" <bruninga_at_usna.edu>
Subject: [aprssig] Voice Aert redux
>>... (has *anyone* ever made a random voice alert contact?
>>It seems... easier to work... DX than... another APRSuser.
>
>I have made two or three -- in the past -- oh -- say -- 6
>or 8 years! Lee Dahlen was one, Bob Bruninga was another.
>And in the middle of nowhere, too!
That's the joy of APRS Voice Alert. If someone is there and within 2 or 3
miles of you, you cannot miss the opportunity for a live simplex QSO.
CAVEAT: As long as some fool in the area is not running it 24/7 from a
basestation which causes everyone in that area to turn their volume down so
that they don't have to hear his 24/7 false-alarms... In that case, its
back to normal mobile ham radio... Ships passing in the night with no
comms...
We have such a signal in Washington DC... Voice Alert packets are on, but
no one home (listening)... I turn down my volume and then forget for days
to bring it back up.
Like we say, it only takes a few un-informed individuals running it from
base stations or 24/7 parked cars to wipe out Voice Alert in an area.
Bob, Wb4APR
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Message: 32
Date: Sun, 11 Feb 2007 09:58:04 -0500
From: Art <KY1K_at_verizon.net>
Subject: Re: [aprssig] Weather station path?
Thanks Keith,
I've been reading the mail here for sometime, glad I got it somewhere near
correct.
I appreciate your reply. You found me almost exactly with the longitude and
latitude you used at findu.
I used findu to study some of the paths used by locals before calling one
on the phone to get his 'in person' recommendations.
You are the only one who replied, I guess my message was pretty boring to
the old salts who are seasoned professionals. Thanks for the info you gave
me.
Regards,
Art
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Message: 33
Date: Sun, 11 Feb 2007 10:04:49 -0500
From: "Wes Johnston, AI4PX" <wes_at_kd4rdb.com>
Subject: Re: [aprssig] Voice Aert redux
I have made more contacts that I can remember over voice alert. The last
was a VE3 station travelling near savannah GA in the opposite direction as
me. Neither one of us knew any local repeaters so we just exchanged names
and destinations before getting too far apart. But it is _always_ exciting
to hear the brrrrrappppp on some long stretch of road.
Wes
------------------------------
Message: 34
Date: Sun, 11 Feb 2007 10:07:19 -0500
From: "Robert Bruninga" <bruninga_at_usna.edu>
Subject: [aprssig] Voice Alert Simplicity!
>... has *anyone* ever made a random voice alert contact?
>Better to use the GPS display to see when someone's coming,
>IMHO. Especially when you can check the waypoint comments
>and see if they have a calling frequency listed.
Wow... You are saying it is easier to:
1) Look at the GPS display continuously* while driving
2) Press buttons to select station and display status
3) TO look for his frequency (which he usually is not on)
4) to then Tune the radio to that frequency
5) Check map scale/terrain to see if you are in simplex range
6) Then calling him to see if he is listening?
7) And having poor probabilility of success (#3 and #5)
Comparing that to hands-free-eyes-free Voice Alert:
1) Hear a ping (eyes always on the road)
2) The quality of the ping guarantees his range
3) Press BAND-A button, and CALL him?
With voice alert, you already know (guaranteed):
A) His VOICE monitoring frequency (APRS, 144.39 in USA)
B) His Range is simplex, and quality is KNOWN (by ear)
C) He *is* listening on 144.39 with CTCSS 100
D) He *is* calling CQ on Voice alert and wants to QSO
E) Everything is already in place. All you have to do is pick
up mic and PTT
Seems much easier and guaranteed than the "easier" method you suggest.
Try it, you'll love it!
http://www.ew.usna.edu/~bruninga/VoiceAlert.htm
* I say you have to watch the GPS display under your scheme "continuously"
at least once every 3 minutes or so without fail to have the same measure
of success as with voice alert. Because two passing interstate vehicles
have usually 3 minutes or less in some terrain to do the QSO. At a
reliable simplex range of 3 to 5 miles and passing at 140 MPh, that leaves
only 2 minutes to see this guy in range. Now admittedly, you can watch the
GPS at a larger scale, but then you are not getting a clear view of your
simplex range...
In my case, the wife is the biggest distraction, and can cause great lapses
in continuous GPS vigilance.
I prefer doing it by ear with Voice Alert.
WB4APR, Bob
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