| |
CX2SA > SATDIG 17.11.09 22:06l 423 Lines 13280 Bytes #999 (0) @ WW
BID : AMSATBB4611
Read: GUEST
Subj: AMSAT-BB-digest V4 611
Path: IZ3LSV<IW0QNL<F4BWT<YO6PLB<CX2SA
Sent: 091117/2003Z @:CX2SA.LAV.URY.SA #:18540 [Minas] FBB7.00e $:AMSATBB4611
From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
Today's Topics:
1. Re: Problem with Basic Stamp based tracker box serial display
(Greg D.)
2. Top 250 Grid Survey - Results (Michael Rudzki)
3. CO-65 earth picture update (Mineo Wakita)
4. Top 250 Grid Survey - Thank you (Jeff Yanko)
5. Re: Top 250 Grid Survey - Results (Doug Kuitula)
6. Re: Portable in DM07 (w6zkh@xxxxxxx.xxxx
7. demo (Bob- W7LRD)
----------------------------------------------------------------------
Message: 1
Date: Mon, 16 Nov 2009 20:23:49 -0800
From: "Greg D." <ko6th_greg@xxxxxxx.xxx>
Subject: [amsat-bb] Re: Problem with Basic Stamp based tracker box
serial display
To: <mat_62@xxxxxxxxxxxx.xxx>, <amsat-bb@xxxxx.xxx>
Message-ID: <BLU133-W223CC0D2C24784852254F9A9A40@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
Hi Michael,
When the display dies, does the rest of the box keep working? If the whole
thing dies, then I'd suspect the 7805 (5v) power supply. Does the 7805 get
hot? If so, that's the problem; they have a built-in thermal shutdown for
over-temp and/or over-current. What sort of heat sink do you have on it?
If the problem is limited to the display, then I'd take a look at what's
feeding it, power-wise, if it's different than the rest of the board.
Again, I'd first look for things that are running too warm.
If there's no heat problem, I'd next look for RF problems, or other things
that can be cured with better shielding or grounding. My controller (also
Stamp-based) was extremely sensitive to the electric glitches created when
the motors were turned off. Kept losing its mind; I fixed it by adding more
bypass caps around the board.
Good luck,
Greg KO6TH
> Date: Mon, 16 Nov 2009 19:23:08 -0500
> From: mat_62@xxxxxxxxxxxx.xxx
> To: amsat-bb@xxxxx.xxx
> Subject: [amsat-bb] Problem with Basic Stamp based tracker box serial
display
>
> I have a a homebrew tracking box designed around a Basic Stamp. It's
> known as the SaebrTrack, I built it from an article on the web. The
> circuit uses an LED display with a serial "backpack" attached from
> Scott Edwards electronics to display the Azimuth and Elevation readings.
> The information is fed to it from the Basic Stamp.
> Lately the display light will start flickering at times and then the
> letters will fade out completely as well. It takes turning the box off
> and back on to bring them back up. This seems to be a sporadic
> occurrence and can happen when the box is turning the rotators or
> sitting idle. There is no rotator control box, the entire operation is
> handled by this unit.
> I just basically read the schematic and built this thing and then
> loaded the Stamp with the software. I'm not well versed in this
> technology. Could this be something as simple as voltage regulation?
> There is a 12V transformer that runs the DC rotator motors and a
> separate 6V transformer that takes care of the display and indicator
> lights as well as feeding voltage to the position pots on the rotators.
> I believe there is a 7805 regulator in the 6V circuit if memory serves.
> Any thoughts or ideas? I've checked for loose connections. Could the
> serial backpack display itself be causing this?
> Any help would be appreciated. It gets kind of annoying when it happens.
> Tnx and 73,
> Michael, W4HIJ
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
_________________________________________________________________
Windows 7: I wanted simpler, now it's simpler. I'm a rock star.
http://www.microsoft.com/Windows/windows-7/default.aspx?h=myidea?ocid=PID24727
::T:WLMTAGL:ON:WL:en-US:WWL_WIN_myidea:112009
------------------------------
Message: 2
Date: Mon, 16 Nov 2009 19:42:37 -0500
From: Michael Rudzki <n8mr@xxxxxxx.xxx>
Subject: [amsat-bb] Top 250 Grid Survey - Results
To: <amsat-bb@xxxxx.xxx>
Message-ID: <COL111-W22D418EC0ACD94AE9EB1C086A40@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
After several years of activating Eagle Harbor Lighthouse (EN57) without HTs
or an Arrow antenna, we were asked by the local hams in upper Michigan why
we don't operate on the satellites anymore. We are now planning on bringing
our sat gear in August 2010 to activate at least EN57 and EN67. And if Al
doesn't have EN56 by that time, I will personally drive down to Jacobsville
and activate it.
EN66 is on our way to Eagle Harbor, but we usually pass through that region
in mid afternoon EDT on a Friday. As a result, all of our previous attempts
to activate EN66 were unsuccessful. But we will try again next year,
provided there is an FM satellite within range while we are driving through.
73,
Mike, N8MR
"Jeff Yanko" <wb3jfs@xxxxxxx> wrote:
>5 VOTES
>EN03
>EN05
>EN07
>EN16
>EN33
>EN40
>EN49
>EN58
>EN66
>EN67
Alvaro de Leon Romo <xe2at@xxxxxxxxxxx> wrote:
>
I see that I am the only one soul that need EN56 :-)
_________________________________________________________________
Hotmail: Trusted email with powerful SPAM protection.
http://clk.atdmt.com/GBL/go/177141665/direct/01/
------------------------------
Message: 3
Date: Tue, 17 Nov 2009 18:41:33 +0900
From: "Mineo Wakita" <ei7m-wkt@xxxxxxxxx.xx.xx>
Subject: [amsat-bb] CO-65 earth picture update
To: <amsat-bb@xxxxx.xxx>
Message-ID: <000301ca676a$26c1f480$840ffea9@xxxxxxxxxxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-2022-jp";
reply-type=original
We, CO-65 station control, could get an image below from parts of the
image data we had obtained until this morning. From our analysys seems
that it was taken on Oct. 28th ,2009, and at the point whose latitude
was 84.6392 degrees north and longitude was 128.3049 degrees., near to
the north pole.
http://lss.mes.titech.ac.jp/ssp/cute1.7/blog/1_48_caption.Jpeg
JE9PEL, Mineo Wakita
------------------------------
Message: 4
Date: Tue, 17 Nov 2009 01:59:38 -0800
From: "Jeff Yanko" <wb3jfs@xxx.xxx>
Subject: [amsat-bb] Top 250 Grid Survey - Thank you
To: <amsat-bb@xxxxx.xxx>
Message-ID: <AF6215B9749F4DDB8E970E545CEE5437@xxxxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
Hi group,
Though I thanked the participants of the survey in the initial release of
the survey, I did not mention them by call, and I should have, since they
helped create since a perspective view of the grids we are in search of.
There were a total of 15 replies, including myself. Thanks again!
N5AFV
XE2AT
K6YK
N1AIA
K0TW
K8YSE
WA8SME
N3TL
KI6YAA
AA5PK
KB0RZD
WA4NVM
K6CDW
KD8CAO
73,
Jeff WB3JFS
------------------------------
Message: 5
Date: Tue, 17 Nov 2009 08:35:17 -0500
From: "Doug Kuitula" <ka8qcu@xxxxx.xxx>
Subject: [amsat-bb] Re: Top 250 Grid Survey - Results
To: "Michael Rudzki" <n8mr@xxxxxxx.xxx>, <amsat-bb@xxxxx.xxx>
Message-ID: <001501ca678a$cf9867e0$cbca64d0@xxx>
Content-Type: text/plain; charset="iso-8859-1"
Mike,
The best spot for working EN67 is the top of Brockway Mountain. The view of
Lake Superior and the surrounding countryside from there is fantastic. I
worked AO-51 from time to time at my summer place in EN56 and have worked
some folks last year from EN67. I didn't get the time this year to get to
that grid. I'm back down in EN82 for the winter but will be back to EN56 in
early May and will try to EN67 then.
73 de Doug KA8QCU
----- Original Message -----
From: "Michael Rudzki" <n8mr@xxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Sent: Monday, November 16, 2009 19:42
Subject: [amsat-bb] Top 250 Grid Survey - Results
>
> After several years of activating Eagle Harbor Lighthouse (EN57) without
HTs or an Arrow antenna, we were asked by the local hams in upper Michigan
why we don't operate on the satellites anymore. We are now planning on
bringing our sat gear in August 2010 to activate at least EN57 and EN67. And
if Al doesn't have EN56 by that time, I will personally drive down to
Jacobsville and activate it.
>
> EN66 is on our way to Eagle Harbor, but we usually pass through that
region in mid afternoon EDT on a Friday. As a result, all of our previous
attempts to activate EN66 were unsuccessful. But we will try again next
year, provided there is an FM satellite within range while we are driving
through.
>
> 73,
> Mike, N8MR
>
>
> "Jeff Yanko" <wb3jfs@xxxxxxx> wrote:
>
> >5 VOTES
> >EN03
> >EN05
> >EN07
> >EN16
> >EN33
> >EN40
> >EN49
> >EN58
> >EN66
> >EN67
> Alvaro de Leon Romo <xe2at@xxxxxxxxxxx> wrote:
>
> >
> I see that I am the only one soul that need EN56 :-)
>
>
>
> _________________________________________________________________
> Hotmail: Trusted email with powerful SPAM protection.
> http://clk.atdmt.com/GBL/go/177141665/direct/01/
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 6
Date: Tue, 17 Nov 2009 13:58:58 +0000 (UTC)
From: w6zkh@xxxxxxx.xxx
Subject: [amsat-bb] Re: Portable in DM07
To: Jeff Yanko <wb3jfs@xxx.xxx>
Cc: amsat-bb <amsat-bb@xxxxx.xxx>
Message-ID:
<328169667.3372681258466338699.JavaMail.root@xxxxxxx.xxxxxxxxxxx.xx.xxxx.xxxxx
xx.xxx>
Content-Type: text/plain; charset=utf-8
You are probably correct in that statement Jeff, "so naturally we're
nuts,"....hi... I can imagine just what folks think when they see one of us
sweeping the skies with our little antennas and radios.
That 4 corner location was viewed in Google Earth. Once I get in the area,
then I can really look over the situation. I dont think CM96 or CM97 are in
demand as much as DM07, looking at your survey. So, when I get there I will
determine just exactly what I am going to do.
Again, this Grid-exposition is scheduled for tomorrow 11/18/09 on the AO-27
pass @ 2041 utc and the SO-50 pass @ 2238 utc. Also maybe the AO-27 pass @
2220 utc, which is a West Coast pass. Equipment will be Yaesu FT-60R HT and
ELK yagi on tripod this time.
For QSL, send me an email with your info or QSL direct (SASE not required
but appreciated) or eQSL.cc. I dont chase paper or grids, but do like to get
cards. Hey, gotta plug up the nail holes in the wall the xyl puts in with
pictures and nick-nacks, right?
Hope to see you all there.
John W6ZKH
DM06
----- Original Message -----
From: "Jeff Yanko" <wb3jfs@xxx.xxx>
To: w6zkh@xxxxxxx.xxx
Sent: Tuesday, November 17, 2009 12:55:50 AM GMT -08:00 US/Canada Pacific
Subject: Re: [amsat-bb] Portable in DM07
Hi John,
Will be looking forward to working you in DM07. You know. The 4 grid
corner in the middle of an almond orchard is really not a problem. We're
hams, we operate satellites, so naturally we're nuts, so we'd all fit in. :)
73,
Jeff WB3JFS
----- Original Message -----
From: <w6zkh@xxxxxxx.xxx>
To: "amsat-bb" <amsat-bb@xxxxx.xxx>
Sent: Friday, November 13, 2009 8:13 AM
Subject: [amsat-bb] Portable in DM07
> Hello all............barring any unforeseen problems, next Wednesday,
> 11/18/09 I will take a quick trip up to DM07 Grid to fulfill some requests
> for that grid, plus hopefully it wont be a bust like last time. The data
> is:
>
> AO-27 @ 2041 utc which is a 25 deg pass
> SO-50 @ 2238 utc which is a 23 deg pass
>
> I had hoped to work the intersection of CM86/CM87/DM06/DM07 except it is
> in the middle of large Almond orchard, so will just stick with DM07.
>
> I will be using the Yaesu FT-60R ht + Elk dual-band yagi, like I did when
> on vacation last month.
>
> Hope to work as many as I can for those 2 passes. QSL direct (no SASE
> required) or eQSL.cc This Grid Location, DM07 is mostly rural and
> mountainous, where Yosemite is located. I will be in the SW corner, in the
> valley so wont be blocked by the Sierra Nevada's.
>
> Look for all.
>
> John W6ZKH
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
Message: 7
Date: Tue, 17 Nov 2009 19:10:56 +0000 (UTC)
From: Bob- W7LRD <w7lrd@xxxxxxx.xxx>
Subject: [amsat-bb] demo
To: amsat-bb@xxxxx.xxx
Message-ID:
<366028330.3446991258485056840.JavaMail.root@xxxxxxx.xxxxxxxxxx.xx.xxxx.xxxxxx
x.xxx>
Content-Type: text/plain; charset=utf-8
Hello
I will be giving a in shack demo today on AO-7 at 2310Z and 11/18 at 0057Z
and SO-50 at 2353Z.?? Should you hear me on I would appreciate a call.?
Trying to demystify satellite communications, and bring more operators into
the "fold".
73 Bob W7LRD
CN87
Washington State area coordinator
?
------------------------------
_______________________________________________
Sent via amsat-bb@xxxxx.xxx. Opinions expressed are those of the author.
Not an AMSAT member? Join now to support the amateur satellite program!
http://amsat.org/mailman/listinfo/amsat-bb
End of AMSAT-BB Digest, Vol 4, Issue 611
****************************************
Read previous mail | Read next mail
| |
