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ZL3AI > APRDIG 18.11.06 01:27l 272 Lines 9636 Bytes #999 (0) @ WW
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Subj: [APRSSIG] Vol 29 #15, 1/1
Path: DB0FHN<DB0RGB<OK0PPL<DB0RES<F5GOV<TU5EX<SR1BSZ<IW2OAZ<ZL2BAU
Sent: 061118/0022Z @:ZL2BAU.#79.NZL.OC #:15446 [Waimate] $:9069-ZL3AI
From: ZL3AI@ZL2BAU.#79.NZL.OC
To : APRDIG@WW
Today's Topics:
1. RE: Re: Clueless Beacon on 30M HF (Cap Pennell)
2. RE: Re: Clueless Beacon on 30M HF (wa7nwp_at_jnos.org)
3. RE: transceiver for APRS? (Robert Bruninga)
4. RE: Re: Clueless Beacon on 30M HF (VE7GDH)
5. Re: Re: Clueless Beacon on 30M HF (Ben Jackson)
6. futurelec modules? (Chris Kantarjiev)
7. Re: futurelec modules? (Art)
8. Re: futurelec modules? (Jason Winningham)
9. RE: N1VG-11 Balloon Flight APRS Maps Now On My Website
(scott_at_opentrac.org)
----------------------------------------------------------------------
Message: 1
Date: Thu, 16 Nov 2006 10:28:08 -0800
From: "Cap Pennell" <cap_at_cruzio.com>
Subject: RE: [aprssig] Re: Clueless Beacon on 30M HF
Steve WA8LMF copied on 30 meters:
Fm WB7VLW To GPSLK Via RELAY,BALDI,MISION,MOXIE,WIDE3,GATE*
$GPGGA,214910,4706.8793,N,12215.5971,W,1,06,2.1,185.6,M,-18.8,M,,*73
Ben AD7GD wrote:
>The original sender probably doesn't know he's going to HF at all.
Yes. That packet indicates Ralph's WB7VLW TNC set with a path of
RELAY,WIDE3-3,GATE
Anybody using (or enabling use of) RELAY could improve their settings.
Ralph shows a email address on QRZ.com.
http://map.findu.com/WB7VLW* shows Ralph's stations and their raw data
indicates he also listens on 145.37 pl136.5 in PUYALLUP, WA.
Has anybody attempted to communicate with Ralph? <I haven't yet.>
I see he could use a touch of help with his WB7VLW-7 digipath too.
Isn't it part of good amateur practice to help each other?
I sure do appreciate all the help hams have given (and will give) to me.
Thanks to all!
73, Cap KE6AFE
------------------------------
Message: 2
Date: Thu, 16 Nov 2006 12:44:55 -0600 (CST)
From: wa7nwp_at_jnos.org
Subject: RE: [aprssig] Re: Clueless Beacon on 30M HF
>Fm WB7VLW To GPSLK Via RELAY,BALDI,MISION,MOXIE,WIDE3,GATE*
>$GPGGA,214910,4706.8793,N,12215.5971,W,1,06,2.1,185.6,M,-18.8,M,,*73
Thats a lot better path then:
>Fm WB7VLW To GPSLK Via TCPIP*
>$GPGGA,214910,4706.8793,N,12215.5971,W,1,06,2.1,185.6,M,-18.8,M,,*73
A bad packet on the air beats the pants off any packet that's not on the
air...
>Steve WA8LMF copied on 30 meters:
Pretty cool that 30 meters is still being used. Hmmm. Are the new rules
that limit data to 500 Hz going to shut this down too?
------------------------------
Message: 3
Date: Thu, 16 Nov 2006 14:42:11 -0500
From: "Robert Bruninga" <bruninga_at_usna.edu>
Subject: RE: [aprssig] transceiver for APRS?
>This reminds me of one thing i'd like the D700 to do -
>Change my status text to read "monitoring [insert freq
>in voice band here]
>[PL XXX.X/DPL XXX][+/-/SMX]". I'm sure it wouldn't be
>hard to make a little Microcontroller to do this for me,
>maybe poll the radio every 2 or
>3 minutes for the data, and enter the text....
There was a fellow that programmed a pic to do this a few years back, but
he said there didn't seem to be much interest in it. This surprised me,
because I never even knew he had dompleted it and where he was
advertising...?
I have lost my contact so don't know who he was or where...
Bob
------------------------------
Message: 4
Date: Thu, 16 Nov 2006 11:07:41 -0800
From: "VE7GDH" <ve7gdh_at_rac.ca>
Subject: RE: [aprssig] Re: Clueless Beacon on 30M HF
Cap KE6AFE wrote...
>Has anybody attempted to communicate with Ralph?
><I haven't yet.> I see he could use a touch of help with his WB7VLW-7
>digipath too. Isn't it part of good amateur practice to help each other?
I'm just sending a note off to Ralph right now. He is 209 km from me, but
when last heard from his horse-mobile APRS station, he made it to a digi
that I can hear from here and gated him from my VE7GDH IGate. As well as an
email address, there was a phone number in his beacon comment, so he's
making it easy to contact him. Perhaps there is someone on the list that it
is east of Tacoma or south of Seattle that could make direct contact with
him by phone if not on 145.37 136.5 Hz.
So... Ralph can update his path from RELAY,WIDE3-3,GATE to something like
WIDE1-1,WIDE2-1 but where is the GATE that's listening on VHF that sent him
out on 30M?
DXing can be fun, but not on APRS - hi!
73 es cul - Keith VE7GDH
--
"I may be lost, but I know exactly where I am!"
------------------------------
Message: 5
Date: Thu, 16 Nov 2006 13:08:46 -0800
From: Ben Jackson <ben_at_ben.com>
Subject: Re: [aprssig] Re: Clueless Beacon on 30M HF
On Thu, Nov 16, 2006 at 11:07:41AM -0800, VE7GDH wrote:
>where is the GATE that's listening on VHF that sent him out on 30M?
When I was experimenting with 30m I searched the findu info for HF gates
near me. Based on the VHF hops, this is probably the same gate I was
hitting. The only thing identifying itself as an HF station on findu in
the right VHF area was W7CCY.
Unfortunately the GATE'ing station does not insert itself into the path. A
human listener who caused a VHF-HF gate and then listened for beacons might
be able to identify the sending station's beacon.
--
Ben Jackson AD7GD
http://www.ben.com/
------------------------------
Message: 6
Date: Thu, 16 Nov 2006 20:32:00 -0800 (PST)
From: Chris Kantarjiev <cak_at_dimebank.com>
Subject: [aprssig] futurelec modules?
Has anyone tried using one of these? The 3.3v requirement is a bit
annoying, but certainly doable...
http://www.futurlec.com/GPS_Module.shtml
The low power consumption is very attractive. The external antenna is a
little less convenient than, say, a GPS-18.
73 de chris K6DBG
------------------------------
Message: 7
Date: Fri, 17 Nov 2006 09:18:44 -0500
From: Art <KY1K_at_verizon.net>
Subject: Re: [aprssig] futurelec modules?
x-avg-checked=avg-ok-6C2B574E
It looks good Chris.
My only warning is that the timing sucks very badly-using it for a GPS
based frequency standard WOULD NOT even begin to work. For position only
reports, it should work fine.
Be aware also that the current consumption does not include the power for
the active antenna and since GPS signals are not strong, an amplified
antenna is a must, not just 'optional'. Typical mmic based preamps use 20
ma or just a tad more, I'm looking for an appropriate mmic preamp for my
module now and homebrewing one DOES NOT seem to be an option::>
Many find the external antenna to be a plus rather than a detraction as the
difference in performance is much better with an external antenna.
Regards,
Art
------------------------------
Message: 8
Date: Fri, 17 Nov 2006 08:27:15 -0600
From: Jason Winningham <jdw_at_eng.uah.edu>
Subject: Re: [aprssig] futurelec modules?
On Nov 17, 2006, at 8:18 AM, Art wrote:
>Many find the external antenna to be a plus rather than a
>detraction as the difference in performance is much better with an
>external antenna.
www.sparkfun.com has a selection of modules, antennas, breakout boards,
etc.
Unfortunately I haven't identified one that will operate above 60k ft for
balloon operation. Data sheets are either inconclusive or negative.
I guess I can always pop a Garmin GPS18LVC out of its shell and mount it
if/when I need a PCB mount device. (:
-Jason
kg4wsv
------------------------------
Message: 9
Date: Fri, 17 Nov 2006 09:09:39 -0800
From: <scott_at_opentrac.org>
Subject: RE: [aprssig] N1VG-11 Balloon Flight APRS Maps Now On My Website
Thanks for the support, guys. I'm still working on the writeup at
http://n1vg.net/balloon and I'll add to it more over the weekend.
The payload worked almost perfectly. The cameras took hundreds of pictures
each, and the new ascent rate code I wrote for the T2 worked well. The max
altitude message suffered from a logic glitch that kept it from retaining
the max altitude properly, but it at least detected when it was falling.
The ground station didn't work out so well. My laptop had some kind of
thermal problem, I think. Despite being pretty cold out there, it was
acting like it was overheating - running really slow (with a low CPU load)
and running the fan on full constantly. Also, Xastir wasn't talking
properly to the KPC-3 I planned to use for the primary tracking and command
link, and I finally abandoned the whole setup. I think the stupid
USB/serial adapter was the source of some of my problems, but I haven't had
a chance to check it out at home yet.
Anyway, the primary tracking system wound up being an Alinco DR-135T with a
prototype T2-135 board, connected to a Garmin GPSmap 60CS. I'll post a
screenshot when I get a chance, but aside from an altitude display glitch
above 65,000 feet (not sure if it's mine or Garmin's bug yet) it worked
great. I set it to navigate mode, and had a distance and heading to the
balloon's current position. The waypoint detail screen gave me altitude
(most of the time), course and speed, ascent/descent rate, board
temperature, and battery voltage.
I had my D7A (until the batteries died) for sending commands, though I
didn't really send it anything except a few checkout commands immediately
after launch and a couple more after recovery. It does look like the board
must have reset on impact, though - the counters showed only a few packets
received. I was hoping for a count of what it had heard in flight, and if
it had digi'd any packets.
The setup kept the clutter down anyway. I had the 135 tucked under the
front seat of the rented Durango, connected to power, a 1/4 wave magmount,
and the 60CS. A laptop with Xastir would have been nice, but the T2
solution worked remarkably well.
Scott
N1VG
------------------------------
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