| |
CX2SA > SATDIG 22.10.09 21:05l 455 Lines 13086 Bytes #999 (0) @ WW
BID : AMSATBB4564
Read: GUEST
Subj: AMSAT-BB-digest V4 564
Path: IZ3LSV<IK2XDE<DB0RES<ON0AR<HS1LMV<CX2SA
Sent: 091022/1903Z @:CX2SA.LAV.URY.SA #:11442 [Minas] FBB7.00e $:AMSATBB4564
From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
Today's Topics:
1. Re: PIC sat tracker (Greg D.)
2. New AO-51 Whole Orbit Data decoder released by DK3WN
(Mark L. Hammond)
3. FAO Steven Bienvenu, wasRe: Re: PIC rotator control
(Gordon JC Pearce)
4. Re: volunteering (Steve Daniels)
5. Putting the ISS together in sequences (w6zkh@xxxxxxx.xxxx
6. Orientation of yagis to ground surface question... (Elan Portnoy)
7. Re: New AO-51 Whole Orbit Data decoder released by DK3WN
(Luc Leblanc)
8. HRD satellite tracker + 2 radios (Bruce R Brown)
----------------------------------------------------------------------
Message: 1
Date: Wed, 21 Oct 2009 23:06:35 -0700
From: "Greg D." <ko6th_greg@xxxxxxx.xxx>
Subject: [amsat-bb] Re: PIC sat tracker
To: <vk4tec@xxxxxxxxxxxxx.xxx>, <amsat-bb@xxxxx.xxx>
Message-ID: <BLU133-W219F62DBF6C528B38F2445A9BE0@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
Andrew,
If you're looking for recommendations, I'd pick #3. It keeps the control of
the motors in the same place that does the measurement of where the antennas
currently are. The tighter that loop is the more accurate will be your
positioning, and the more tolerant it will be of interface glitches.
Alternative #1, as you say, is too hard (unless you're really into that sort
of thing), and #2 and #4 could send the rotor into the end stops (risking
fatal damage) if the Linux box were to get confused or out of sync with the
PIC.
Finally, with #3 you can make a stand-alone manual controller, to do custom
things like parking the antennas if the weather turns bad, or creating a
bunch of pre-set buttons for favorite positions, all without needing to fire
up the PC.
Good luck,
Greg KO6TH
> From: vk4tec@xxxxxxxxxxxxx.xxx
> To: amsat-bb@xxxxx.xxx
> Date: Wed, 21 Oct 2009 20:24:07 +1000
> Subject: [amsat-bb] PIC sat tracker
>
> Putting together a USB 16F877 rotator control A/D serial and LOGIC
>
> Got a few options
>
> Predict as the AZ/EL engine and perl scripts.
>
> 1. Completely autonomous - quite hard to do in a PIC
> 2. Use the A/D and just send data back to LINUX and get LINUX to turn
relays on / off via parra port
> 3. Send AZ and EL to the PIC, do a ASCII to BIN and then get the PIC to
drive the rotators.
> 4. Use the A/D and send data to LINUX and then send back a serial command
on what to do.
>
> Cheers
>
> Andrew VK4TEC
>
> _______________________________________________
> 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
_________________________________________________________________
Hotmail: Trusted email with powerful SPAM protection.
http://clk.atdmt.com/GBL/go/177141665/direct/01/
------------------------------
Message: 2
Date: Thu, 22 Oct 2009 11:39:08 -0400
From: "Mark L. Hammond" <marklhammond@xxxxx.xxx>
Subject: [amsat-bb] New AO-51 Whole Orbit Data decoder released by
DK3WN
To: amsat-bb@xxxxx.xxx
Message-ID:
<5d8cecfe0910220839x26277113s532b3059da7777aa@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Thanks to our resident telemery guru Mike Rupprecht DK3WN a new AO-51
whole orbit data (WOD) telemetry decoder has been released! ?The file
with decoder and coefficients file can be downloaded from here:
http://www.dk3wn.info/files/ao51wod.zip
The AO-51 telemetry archive is on the AMSAT FTP server. ?DK3WN's new
decoder is for processing "raw" WOD telemetry files. ?For example, the
WOD data collected for October 2009 is here:
ftp://ftp.amsat.org/pub/amsat/telemetry/ao51/2009WOD/Oct2009/raw1009/
The decoder generates a .CSV (comma separated) file that can be opened
in Excel, etc. ?A nice feature is that the telemetry program acutally
graphs the data, too!
THANKS, Mike DK3WN!
73,
--
Mark L. Hammond [N8MH]
------------------------------
Message: 3
Date: Thu, 22 Oct 2009 18:00:27 +0100
From: Gordon JC Pearce <gordonjcp@xxxx.xxx>
Subject: [amsat-bb] FAO Steven Bienvenu, wasRe: Re: PIC rotator
control
To: amsat-bb@xxxxx.xxx
Message-ID: <1256230827.16767.47.camel@xxxxx.xxxx>
Content-Type: text/plain; charset="UTF-8"
Hi Steve,
I replied to your email only to have Comcast reject it as spam with no
way of unblocking it. Have you got an email with a non-broken provider
I could forward it to?
Gordon MM0YEQ
------------------------------
Message: 4
Date: Thu, 22 Oct 2009 18:04:46 +0100
From: "Steve Daniels" <steve@xxxxxxxxxx.xxxxxxx.xx.xx>
Subject: [amsat-bb] Re: volunteering
To: "'Joseph Armbruster'" <josepharmbruster@xxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <1359FB2D602040C296E123F25D152C76@xxxxxxx>
Content-Type: text/plain; charset="us-ascii"
Hi Joe,
Most of my experience is with Gentoo Linux, Apache, mysql. Plus relevant
utils.
On top of which running SMF for a bulletin board integrated with coppermine
for a gallery. Also Oww and RRD for display data from my weather station.
Also used DADA for a mailing list.
That being said I have plenty of time on my hands at the moment, so I am
happy to load up Joomla or any other CMS and learn it.
One of my reasons for volunteering was some of the very out of date web
pages I was coming across. As I was attempting to get back into amateur
radio. (I lived in a location that maid radio impossible)
So I would be more than happy to help out.
Steve
G6UIM
-----Original Message-----
From: Joseph Armbruster [mailto:josepharmbruster@xxxxx.xxxx
Sent: 22 October 2009 02:18
To: Steve Daniels
Subject: Re: [amsat-bb] Re: volunteering
Steve,
You have web development experience correct ?
Are you familiar at all with Joomla ?
One of the current desires of Amsat is to port over the existing
website to a content management system like Joomla. I set up
wikimedia and joomla for testing purposes and Gould seemed to like
Joomla better. The primary reason is that adding and editing content
is a breeze with it. So, what i'm starting to move over content into
the Joomla instance. I'm getting the menus, sections, etc... setup so
that showing it off will be nice.
If you're interested I could use your help in making it happen. I
have a Parallels VM with Ubuntu that I could pass on to you if you'd
like to test out Joomla. It's reasonably trivial to set up but i'm
not certain of your experience.
Let me know if you're interested in helping out.
Joe
On Oct 21, 2009, at 7:31 PM, Steve Daniels wrote:
> Hi David
>
> Happy to help in any way I can. I can see updating web pages as a
> way I can
> help to some small degree. Recently clicked on amsat sites where
> some pages
> have not been updated in years. Even if the info is still valid it
> looks
> bad.
>
> Having worked in education am happy to get involved in that
> direction, you
> will know that experience.
>
>
>
> Steve G6UIM
>
>
>
> _____
>
> From: G0MRF@xxx.xxx [mailto:G0MRF@xxx.xxxx
> Sent: 20 October 2009 23:30
> To: steve@xxxxxxxxxx.xxxxxxx.xx.xx
> Subject: Re: [amsat-bb] Re: volunteering
>
>
>
> In a message dated 20/10/2009 22:00:31 GMT Standard Time,
> steve@xxxxxxxxxx.xxxxxxx.xx.xx writes:
>
>
> Hi David
>
> Sadly no I don't have any 2m design experience, my design experience
> is
> mostly high voltage switch mode PSU for powering Traveling Wave
> Tubes, and
> the microcontroller based management systems for controlling high
> power
> travelling wave tubes + PSUs. Mostly I have done the microcontroller
> aspect
> of that. Over recent years I have been mainly involved in I.T. admin
> in
> schools
>
>
>
> Steve
>
> Hi Steve.
>
>
>
> Thanks for the reply. Always good to know that someone is interested
> in
> supporting the AMSAT cause. The ESEO project is being funded
> (hardware only)
> by AMSAT UK while the launch is supplied by ESA Education. It's an
> educational project with a small role for AMSAT. Currently we need
> some
> expertise for a 2m TX and some satellite antennas...although
> hopefully the
> antennas shouldn't be too much of a problem.
>
>
>
> http://www.esa.int/SPECIALS/Education/SEMA0NEMKBF_0.html
>
>
>
> Great on the PSU for TWT's. - with the microcontroller aspect of
> management.
> Perhaps I can 'store' that in case we need a hand in those areas in
> the
> future. Is it the PIC variety or ARM or some other specialised type
> you are
> familiar with?
>
>
>
> I'm working at a school as a science technician at present, so
> possibly I
> can appreciate your working environment quite well. Half term in 3
> days. -
> Yippee.
>
>
>
> Regards
>
>
>
> David
>
> _______________________________________________
> 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: 5
Date: Thu, 22 Oct 2009 17:26:59 +0000 (UTC)
From: w6zkh@xxxxxxx.xxx
Subject: [amsat-bb] Putting the ISS together in sequences
To: amsat-bb <amsat-bb@xxxxx.xxx>
Message-ID:
<1329979441.1350911256232419967.JavaMail.root@xxxxxxx.xxxxxxxxxxx.xx.xxxx.xxxx
xxx.xxx>
Content-Type: text/plain; charset=utf-8
Interesting concept:
http://i.usatoday.net/tech/graphics/iss_timeline/flash.htm
------------------------------
Message: 6
Date: Thu, 22 Oct 2009 11:31:26 -0700 (PDT)
From: Elan Portnoy <elanportnoy@xxxxx.xxx>
Subject: [amsat-bb] Orientation of yagis to ground surface
question...
To: amsat-bb@xxxxx.xxx
Message-ID: <687950.92218.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
OK, here's another question for you:
My 70cm and 2m yagis are currently in an "X" (each set of elements 45 deg
off horizon) orientation on the boom. I did this to minimize interaction
between the two. However, I'm wondering if performance may be improved by
mounting them with on set of elements perpandicular to horizon and the other
parallel.
The only thing that comes to mind is the manner in which the ground
influences the signal path should the elements be at right angles instead of
45 deg.
Thoughts?
------------------------------
Message: 7
Date: Thu, 22 Oct 2009 12:56:50 -0400
From: Luc Leblanc <lucleblanc6@xxxxxxxxx.xx>
Subject: [amsat-bb] Re: New AO-51 Whole Orbit Data decoder released by
DK3WN
To: amsat-bb@xxxxx.xxx
Message-ID: <4AE05692.19949.5C3023B@xxxxxxxxxxx.xxxxxxxxx.xx>
Content-Type: text/plain; charset=ISO-8859-1
On 22 Oct 2009 at 11:39, Mark L. Hammond wrote:
Date sent: Thu, 22 Oct 2009 11:39:08 -0400
From: "Mark L. Hammond" <marklhammond@xxxxx.xxx>
Subject: [amsat-bb] New AO-51 Whole Orbit Data decoder released by
DK3WN
To: amsat-bb@xxxxx.xxx
> Thanks to our resident telemery guru Mike Rupprecht DK3WN a new AO-51
> whole orbit data (WOD) telemetry decoder has been released! ?The file
> with decoder and coefficients file can be downloaded from here:
>
> http://www.dk3wn.info/files/ao51wod.zip
>
> The AO-51 telemetry archive is on the AMSAT FTP server. ?DK3WN's new
> decoder is for processing "raw" WOD telemetry files. ?For example, the
> WOD data collected for October 2009 is here:
>
> ftp://ftp.amsat.org/pub/amsat/telemetry/ao51/2009WOD/Oct2009/raw1009/
>
>
> The decoder generates a .CSV (comma separated) file that can be opened
> in Excel, etc. ?A nice feature is that the telemetry program acutally
> graphs the data, too!
>
> THANKS, Mike DK3WN!
>
> 73,
>
> --
> Mark L. Hammond [N8MH]
>
> _______________________________________________
> 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
>
Hi Mark
Is it a new program or a new update for "tlmecho"? I guess it's a new one
but just to be safe.
Thank's
Thank's
"-"
Luc Leblanc VE2DWE
Skype VE2DWE
www.qsl.net/ve2dwe
DSTAR urcall VE2DWE
WAC BASIC CW PHONE SATELLITE
------------------------------
Message: 8
Date: Thu, 22 Oct 2009 13:06:48 -0500
From: "Bruce R Brown" <willmarbrowns@x.xxx>
Subject: [amsat-bb] HRD satellite tracker + 2 radios
To: <amsat-bb@xxxxx.xxx>
Message-ID: <BLU0-SMTP8586710DFD7D3B66A4B133B1BE0@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
I wonder if anyone has had any luck doing this.
I have a ft-100 and 706mkIIG for radios. HRD will talk to each radio. I
cannot get the second radio recognized by the program. would like to tune
downlink with one radio and the uplink with the other radio using one
instance of the HRD program.
Any help or suggestions would be appreciated. Reply off list if you wish to
do so. 73, Bruce ke0lx
willmarbrowns@x.xxx
------------------------------
_______________________________________________
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 564
****************************************
Read previous mail | Read next mail
| |
