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ZL3AI > APRDIG 19.07.03 12:27l 252 Lines 9271 Bytes #999 (0) @ WW
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Subj: TAPR Digest, Jul 16, 3/4
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From: ZL3AI@ZL3VML.#80.NZL.OC
To : APRDIG@WW
Subject: Re: Original TAPR Mic-e
From: Bill Vodall <wa7nwp@jnos.org>
Date: Wed, 16 Jul 2003 11:53:55 -0700
X-Message-Number: 19
At 01:06 PM 7/16/03 -0400, Michael J. Wolthuis wrote:
>With the resent move from the TAPR Mic-e to the Kenwood d700 I do not
>currently use my Mic-e and would like to put it to use.
....
>I assume it can be put
>on my 6m Alinco FM only radio, but not much action there and doesn't
>work with PropNet design on 50.620.
Put it on 50.62 and use it. Far better to have packets and activity that
isn't perfect then to have no activity. When I get on 50.62, (RSN) it's
going to be with standard APRS format. No sense further jumbling any
already well jumbled format.
If there is something you'd like to tweak with the Mic-E, isn't the source
available? I'm sticking with the PIC-E just for that reason.
73,
Bill - WA7NWP
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Subject: Re: Camera ideas for an APRS tracked SUB?
From: "Richard Amirault" <ramirault@erols.com>
Date: Wed, 16 Jul 2003 15:45:51 -0400
X-Message-Number: 20
I'm pretty sure the VC-H1 only does Slow Scan TV .. but the VideoLynx (fast
scan) TV transmitter can be picked up with many LCD handheld TVs.
Frankly, if you want to use Slow Scan and the VC-H1 I think your biggest
problem will be getting a transmitter small enough to fit in the sub.
Richard Amirault N1JDU Boston,
MA, USA
ramirault@erols.com "Go Fly A Kite"
http:// www.erols.com/ramirault
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Subject: APRS Initalization Files; Where 2 Get?
From: "Matthew Stennett" <wa4tkg@iwon.com>
Date: Wed, 16 Jul 2003 16:09:28 -0400 (EDT)
X-Message-Number: 21
I need to download the APRS Initalization files again..
where can they be FOUND?
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Subject: Re: Camera ideas for an APRS tracked SUB?
From: WA8LMF2@aol.com
Date: Wed, 16 Jul 2003 16:35:53 EDT
X-Message-Number: 22
In a message dated 7/16/2003 11:10:44 AM Pacific Daylight Time,
dakotas@dotorg.org writes:
>Sorry I forgot to add that I am looking to have the pics on 440 Mhz as I
>have a D7 and a VC-H1 that I was hoping to view the image on as it is easy
>to carry and doesn't add to the equipment I already have with me (Track on
>.390/ picture on 440). I don't have the info on ATV being able to run on the
>VC-H1, does anyone know if it can be done?
The VC-H1 doesn't do FSTV. The whole point of SSTV (actually a mis-nomer
-- it's really not TV but a system for sending still pictures. Indeed in the
early days of SSTV in the early '60s, it was sometimes referred to as CRT
FAX!) is that it uses normal voice-audio-bandwidth channels.
FSTV (Fast Scan TV) is normal full-motion analog NTSC broadcast-type TV,
requiring a channel several MHz wide for a single signal. In turn this
means an AM transmitter and an AM receiver with an enormously wide
bandwidth to receive. Receiving FSTV requires essentially a broadcast TV
set modified to tune into the 440 band (or one of those fancy Icom
hand-held scanners with the built-in LCD monitor).
If you want to transmit FSTV, you could use one of the wireless extenders
sold for VCRs and home security cameras that accept NTSC input from a CCD
camera and generate a low power broadcast-type TV signal on an empty UHF TV
channel.
If you want to transmit SSTV you will need another VC-H1 on board the sub,
or some equivalent scan converter device that accepts an NTSC fast scan
input, grabs a single FSTV frame and then transmits it over 30-90 seconds
as an SSTV signal. [ The TASCO 70 FSTV<-->SSTV scan converter actually
uses the same chip as the VC-H1. It's essentially a VC-H1 minus the camera
head, monitor and speaker mic. ]
One approach would be to use your existing VC-H1 on board the sub and use a
computer with soundcard interface and SSTV software to receive at your
control point. If you do use the VC-H1, you are going to have to put it
into the autobeaconing capture-a-frame-and-TX-every-n-minutes mode since
you won't have any convenient way to push the capture button twice and then
the TX button each time you want to send a pic.
The AOR supporting software for the VC-H1 that runs on a Win95/98 PC (but
alas WONT WORK on Win 2K or XP) to upload and download pics from the
VC-H1's memory can also command the VC-H1 into a periodic auto-beacon mode.
Once in this mode, the unit can be detached from the PC and will continue
to TX periodically until the unit is switched off.
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: Re: APRS Initalization Files; Where 2 Get?
From: Dennis Hudson <n2lbt@n2lbt.com>
Date: Wed, 16 Jul 2003 16:53:52 -0400
X-Message-Number: 23
Honestly Matt, what on earth are you talking about? Help us, so we can
help you.
What APRS? Software(Mac/WinAPRS, UiView, Xastir etc.)?
Hardware(TNC,Mic-e,D7)? OS(Mac/Win/Dos/)? Version?
Some common search engines might help also.
www.google.com, www.altavista.com, www.ask.com, etc
Search the archives on this list, which goes unused many times. This
could probably answer 75% of people's questions.
http://www.tapr.org/cgi-bin/wilma/
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Subject: SMALL 144MHz Transmitter
From: "Eric Christensen" <kf4otn@earthlink.net>
Date: Wed, 16 Jul 2003 18:59:50 -0400
X-Message-Number: 24
Can anyone advise of where I could find a small (VERY SMALL) 144MHz
transmitter that would be good for using with a Tiny Trak III? I want to
play with tracker that is small enough that I could almost pocket the set
and use on the boat, etc.
Thanks,
Eric KF4OTN
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Subject: Re: Camera ideas for an APRS tracked SUB?
From: Bob Bruninga <bruninga@usna.edu>
Date: Wed, 16 Jul 2003 19:18:35 -0400 (EDT)
X-Message-Number: 25
On Wed, 16 Jul 2003 WA8LMF2@aol.com wrote:
>The VC-H1 doesn't do FSTV.
It certainly does. It outputs NTSC fast scan video on a sub-mini
jack on the side. It is amazing that Kenwood just never poitned out the
TEN things the VCH-1 can do:
1) FSTV (normal NTSC Video and audio
2) SSTV
3) FSTV to SSTV converter.
4) SSTV to FSTV converter
5) Speaker Mike
6) 10 memory Digital Camera
7) Handheld FSTV (NTSC) video monitor
8) Handheld NTSC Video Camera
....
etc.
The ONLY thing they advertised it for was SSTV. What a bad marketing
goof!
Bob
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Subject: Re: Camera ideas for an APRS tracked SUB?
From: Gonzales Andy <agonzales@arc.nasa.gov>
Date: Wed, 16 Jul 2003 16:26:54 -0700
X-Message-Number: 26
On our high altitude tests of our Mars airplane at 100,000 ft. we used a
small 1.3 in sqr pinhole camera feeding 440 MHz band transmitte. The signal
was received by a "Downconverter" which outpur video onTV Ch 3. (the raw
signal is also cable TV Ch 58 - 60). This was done for NASA / Ames reserach
center by GSSL in Tillamook, OR (Bob Moody, K7IRK)
Andy G. KG6RWO
--
Andy Gonzales
NASA / Ames Research Center
Moffett Field, CA 94035-1000
Bldg. N-244, Rm. 240
MS 244-19
agonzales@arc.nasa.gov
650-604-0309
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Subject: Re: Camera ideas for an APRS tracked SUB?
From: Roger Grady <k9opo@comteck.com>
Date: Wed, 16 Jul 2003 18:45:14 -0500
X-Message-Number: 27
At 12:04 PM 7/16/03 -0600, "Dakota Summerhawk" <dakotas@dotorg.org> wrote:
>Sorry I forgot to add that I am looking to have the pics on 440 Mhz as I
>have a D7 and a VC-H1 that I was hoping to view the image on as it is easy
>to carry and doesn't add to the equipment I already have with me (Track on
>.390/ picture on 440). I don't have the info on ATV being able to run on the
>VC-H1, does anyone know if it can be done?
The VC-H1 can accept NTSC video and display it (also frame-grab and
transmit it via SSTV) and I think you can get NTSC video out from the VC-H1
onboard camera, but you need an external FSATV transceiver for a complete
system.
Roger Grady K9OPO
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Subject: Re: Camera ideas for an APRS tracked SUB?
From: Dave VanHorn <dvanhorn@cedar.net>
Date: Wed, 16 Jul 2003 18:55:28 -0500
X-Message-Number: 28
>The VC-H1 can accept NTSC video and display it (also frame-grab and
>transmit it via SSTV)
In the jack at the top where the camera plugs in.
BE CAREFUL, the camera is powered through the jack.
>I think you can get NTSC video out from the VC-H1 onboard camera, but you
>need an external FSATV transceiver for a complete
>system.
IIRC that's right, side jack. I'm in Canada now, I can't look and check.
You need an HT, but the VC-H1 does the SSTV audio generation and decoding.
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