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CX2SA > SATDIG 05.02.10 18:20l 873 Lines 26244 Bytes #999 (0) @ WW
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Sent: 100205/1616Z @:CX2SA.LAV.URY.SA #:37878 [Minas] FBB7.00e $:AMSATBB563
From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
Today's Topics:
1. Propulsion for Cubesats (Rich Dailey)
2. SSTV via FO-29 (PE0SAT)
3. HO-68 In a good shape today! (Nader Omer)
4. Re: SSTV via FO-29 (Angelo Glorioso III / N5UXT)
5. NASA - Pluto Images (Clint Bradford)
6. Re: My rotators (Howard Long)
7. Re: My rotators (Charles Suprin)
8. Re: NASA - Pluto Images (Jeff Yanko)
9. Video: micro-controller doppler tuning (Bruce Robertson)
10. Re: Alaska Finally (Angelo Glorioso III / N5UXT)
11. Re: Video: micro-controller doppler tuning (Mark L. Hammond)
12. Re: Video: micro-controller doppler tuning (Bruce Robertson)
13. Orbitron help (Dads)
14. Re: Orbitron help (Nigel Gunn G8IFF/W8IFF)
15. First time on HO68 (John Geiger)
16. Re: First time on HO68 (Dave Webb KB1PVH)
17. Re: First time on HO68 (David - KG4ZLB)
18. Re: Video: micro-controller doppler tuning (Mark L. Hammond)
----------------------------------------------------------------------
Message: 1
Date: Thu, 04 Feb 2010 16:07:30 -0500
From: Rich Dailey <richdailey@xxxxxxxxxx.xxx>
Subject: [amsat-bb] Propulsion for Cubesats
To: amsat-bb@xxxxx.xxx
Message-ID: <7.0.0.16.2.20100204160617.023969e0@xxxxxxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"
An interesting article on ionic propulsion for cubesats that
I thought might interest the BB.
http://web.mit.edu/newsoffice/2010/cubesat-01115.html
Rich, N8UX
------------------------------
Message: 2
Date: Thu, 4 Feb 2010 22:59:26 +0100
From: "PE0SAT" <pe0sat@xxxxx.xx>
Subject: [amsat-bb] SSTV via FO-29
To: GM0ICF@xxxxx.xxx
Cc: amsat-bb@xxxxx.xxx
Message-ID: <20100204215926.65C1C23087@xx.xxxxx.xx>
Content-Type: text/plain;charset=iso-8859-1
Hi Bill,
I did receive your SSTV via FO-29. Signals where load and clear.
Visit http://www.ham.vgnet.nl/?Home:Blog:Feb_2010 to see on of the
images I decoded with MMSSTV.
73 Jan - PE0SAT
------------------------------
Message: 3
Date: Thu, 4 Feb 2010 14:15:43 -0800 (PST)
From: Nader Omer <st2nh@xxxxx.xxx>
Subject: [amsat-bb] HO-68 In a good shape today!
To: amsat bb bb <amsat-bb@xxxxx.xxx>
Message-ID: <227550.5531.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1
HI !
Directory downloaded after i've uploaded 3 messages.
?
http://st2nh-blogger.blogspot.com/2010/02/ho-68-3-msg-uploaded-directory.html
?
?
73' Nader
?
?
------------------------------
Message: 4
Date: Thu, 4 Feb 2010 16:16:54 -0600
From: "Angelo Glorioso III / N5UXT" <n5uxt@xxxxxxx.xxx>
Subject: [amsat-bb] Re: SSTV via FO-29
To: <amsat-bb@xxxxx.xxx>
Message-ID: <BLU0-SMTP930DAA736693C216F3BAD9ED550@xxx.xxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
Sure would love to do SSTV on FO-29 here state side, but
everyone get into an up roar about the AGC on the bird. I just
don't get it.
73 de Angelo
----- Original Message -----
From: "PE0SAT" <pe0sat@xxxxx.xx>
To: <GM0ICF@xxxxx.xxx>
Cc: <amsat-bb@xxxxx.xxx>
Sent: Thursday, February 04, 2010 3:59 PM
Subject: [amsat-bb] SSTV via FO-29
>
>
> Hi Bill,
>
> I did receive your SSTV via FO-29. Signals where load and clear.
>
> Visit http://www.ham.vgnet.nl/?Home:Blog:Feb_2010 to see on of the
> images I decoded with MMSSTV.
>
> 73 Jan - PE0SAT
>
>
> _______________________________________________
> 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, 04 Feb 2010 14:54:20 -0800
From: Clint Bradford <clintbradford@xxx.xxx>
Subject: [amsat-bb] NASA - Pluto Images
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Message-ID: <754EE883-708E-46F8-87F7-7E7CA3364BB8@xxx.xxx>
Content-Type: text/plain; charset=us-ascii
NASA releases most detailed photos of Pluto ever ...
http://www.nasa.gov/mission_pages/hubble/science/pluto-20100204.html
Clint
------------------------------
Message: 6
Date: Thu, 4 Feb 2010 23:12:18 -0000
From: "Howard Long" <howard@xxxxxxxxxx.xxx>
Subject: [amsat-bb] Re: My rotators
To: "'Bob McGwier'" <rwmcgwier@xxxxx.xxx>, "'amsat bb'"
<amsat-bb@xxxxx.xxx>
Message-ID: <000301caa5ef$7fa9ed50$7efdc7f0$@xxx>
Content-Type: text/plain; charset="us-ascii"
Bob
I don't have a 5400 myself, but the Tracker will certainly work from a
software perspective. What I'm not totally sure of is the electrical
interface: the LVB Tracker provides open collector active pull down
up/down/cw/ccw control. It expects Az/El feedback of 0 to 5V (can be
calibrated for less) and it should be low impedance (~<1k ohm). The ground
return to the Az/El feedback must be very low impedance.
I have a couple of rather old scanned docs on my PC, one's for a KR500 Az
only rotator which would need relays (with appropriate back EMF diodes)
placed across the up/down switches and possibly an opamp buffer on the
feedback pots. The other called "kenpro.jpg" that quite possibly someone
sent me asking the same question as you, and it is a section of a schematic
that shows PNP transistors and relays already in place, and a buffer for the
feedback pots, just like the Yaesu G5500, so that can be directly connected.
73, Howard G6LVB
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of Bob McGwier
Sent: 03 February 2010 19:04
To: amsat bb
Subject: [amsat-bb] My rotators
I have a Kenpro 5400 (with the plug in the back of the box). Is anyone
using LVB Tracker with that unit?
It is going up right after some refurb and a thaw here.
Bob
N4HY
--
(Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio
Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats,
NJQRP, QRP ARCI, QCWA, FRC.
"the only people for me are the mad ones,
the ones who are mad to live, mad to talk,
mad to be saved, desirous of everything at
the same time, the ones who never yawn or
say a commonplace thing, but burn, burn, burn
like fabulous yellow roman candles" Kerouac
Twitter:rwmcgwier
Active: Facebook,Myspace,LinkedIn
_______________________________________________
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: Thu, 4 Feb 2010 18:54:38 -0500
From: Charles Suprin <hamaa1vs@xxxxx.xxx>
Subject: [amsat-bb] Re: My rotators
To: Bob McGwier <rwmcgwier@xxxxx.xxx>
Cc: amsat bb <amsat-bb@xxxxx.xxx>
Message-ID:
<e6d28deb1002041554l36d64d48h460344b99b291bc1@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Bob,
I have a emotator that I use with an LVB and it works great.
Based on the Kansas City Tracker documentation, the functional
difference is the pinout with the 5400.
Good luck.
Charles
On Wed, Feb 3, 2010 at 2:04 PM, Bob McGwier <rwmcgwier@xxxxx.xxx> wrote:
> I have a Kenpro 5400 (with the plug in the back of the box). ?Is anyone
> using LVB Tracker with that unit?
>
> It is going up right after some refurb and a thaw here.
>
> Bob
> N4HY
>
> --
> (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio
> Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats,
> NJQRP, QRP ARCI, QCWA, FRC.
> "the only people for me are the mad ones,
> ?the ones who are mad to live, mad to talk,
> ?mad to be saved, desirous of everything at
> ?the same time, the ones who never yawn or
> ?say a commonplace thing, but burn, burn, burn
> ?like fabulous yellow roman candles" Kerouac
> Twitter:rwmcgwier
> Active: Facebook,Myspace,LinkedIn
>
> _______________________________________________
> 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: 8
Date: Thu, 4 Feb 2010 17:19:49 -0800
From: "Jeff Yanko" <wb3jfs@xxx.xxx>
Subject: [amsat-bb] Re: NASA - Pluto Images
To: "Clint Bradford" <clintbradford@xxx.xxx>, "AMSAT BB"
<amsat-bb@xxxxx.xxx>
Message-ID: <9C64119CD38B4B88BABC127992747C04@xxxxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
And to think, there are those who knocked Pluto out of planet status to
dwarf planet status and there are those who are still unhappy with that and
want to knock it lower, or completely off the list. Great photos, though
details aren't sharp, I'm sure when New Horizons arrives it will provide
sharp details and new information.
73,
Jeff WB3JFS
----- Original Message -----
From: "Clint Bradford" <clintbradford@xxx.xxx>
To: "AMSAT BB" <amsat-bb@xxxxx.xxx>
Sent: Thursday, February 04, 2010 2:54 PM
Subject: [amsat-bb] NASA - Pluto Images
> NASA releases most detailed photos of Pluto ever ...
>
> http://www.nasa.gov/mission_pages/hubble/science/pluto-20100204.html
>
> Clint
> _______________________________________________
> 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: 9
Date: Fri, 5 Feb 2010 01:23:33 -0400
From: Bruce Robertson <ve9qrp@xxxxx.xxx>
Subject: [amsat-bb] Video: micro-controller doppler tuning
To: AMSAT-BB <amsat-bb@xxxxx.xxx>
Message-ID:
<49657a761002042123w29a981f6h2ea1bf59c1fb86f@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
The following video shows the current state of my
doppler-tuning-on-a-chip project. It shows the project's first QSOs
and its stability while tracking a LEO beacon.
http://www.youtube.com/user/VE9QRP#p/a/u/0/TP_fq_frqKw
73, Bruce
VE9QRP
------------------------------
Message: 10
Date: Thu, 4 Feb 2010 07:57:54 -0600
From: "Angelo Glorioso III / N5UXT" <n5uxt@xxxxxxx.xxx>
Subject: [amsat-bb] Re: Alaska Finally
To: "RuthAnn Bledsoe" <ruthann.bledsoe@xxxxxxxxx.xxx>, "Tim - N3TL"
<n3tl@xxxxxxxxx.xxx>
Cc: dan@xxxxx.xxxx fl@xxxxxx.xxxx AMSATBBS <amsat-bb@xxxxx.xxx>,
tcraftdan@xxxxx.xxxx sawson@xxxx.xxxxxxxx.xxxx wd9ewk@xxxxx.xxxx
john@xxxxxx.xxxx kl7xj@xxxx.xxx
Message-ID: <BLU0-SMTP98074162575C8EF534C59CED550@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
Hi Tim,
Thanks for the congrats. I heard you at the end of the pass too. It was
really cool. All I need now is Hawaii now and I have
work all states via satellite. Any takers in Hawaii listening to the BB???
73 de Angelo
----- Original Message -----
From: Tim - N3TL
To: RuthAnn Bledsoe ; n5uxt@xxxxxxx.xxx
Cc: kl7xj@xxxx.xxx ; fl@xxxxxx.xxx ; dan@xxxxx.xxx ; wd9ewk@xxxxx.xxx ;
john@xxxxxx.xxx ; tcraftdan@xxxxx.xxx ; sawson@xxxx.xxxxxxxx.xxx
Sent: Thursday, February 04, 2010 7:11 AM
Subject: Re: Alaska Finally
Congratulations Angelo! I heard your contact with Craig. Good for you!
And thank you, Craig, for being on the passes this week to give folks in
the lower 48 the opportunity to work Alaska via HO-68.
73,
Tim - N3TL
------------------------------------------------------------------------------
From: RuthAnn Bledsoe <ruthann.bledsoe@xxxxxxxxx.xxx>
To: n5uxt@xxxxxxx.xxx
Cc: kl7xj@xxxx.xxxx fl@xxxxxx.xxxx dan@xxxxx.xxxx wd9ewk@xxxxx.xxxx
n3tl@xxxxxxxxx.xxxx john@xxxxxx.xxxx tcraftdan@xxxxx.xxxx
sawson@xxxx.xxxxxxxx.xxx
Sent: Wed, February 3, 2010 11:41:17 PM
Subject: Re: Alaska Finally
Hi Angelo >>>
You had a nice signal here in Eagle River, Alaska, this evening in
between
the packet racket. One more shot via HO-68 in the current sequence tomorrow
night. Hope to hear you again!
73,
Craig, KL4E
----- Original Message -----
From: "Angelo Glorioso III / N5UXT" <n5uxt@xxxxxxx.xxx> 2/3/2010
7:08:50 PM
Subject: [amsat-bb] Alaska Finally
To: "AMSATBBS" <amsat-bb@xxxxx.xxx>
Finally worked Alaska tonight:
KL4E in BP51 02/04/2010 0402
Now that is what I call stretching it.
73 de Angelo
_______________________________________________
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: 11
Date: Fri, 05 Feb 2010 07:01:50 -0500
From: "Mark L. Hammond" <marklhammond@xxxxx.xxx>
Subject: [amsat-bb] Re: Video: micro-controller doppler tuning
To: Bruce Robertson <ve9qrp@xxxxx.xxx>, AMSAT-BB <amsat-bb@xxxxx.xxx>
Message-ID: <eC1i1d0092QjNpn05C1jh4@xxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Very nice, Bruce! What a great project.
In the video you mention something about CW--is that an ID for the bird
currently being tracked, or what? I might have missed it...
73,
Mark N8MH
At 01:23 AM 2/5/2010 -0400, Bruce Robertson wrote:
>The following video shows the current state of my
>doppler-tuning-on-a-chip project. It shows the project's first QSOs
>and its stability while tracking a LEO beacon.
>
>http://www.youtube.com/user/VE9QRP#p/a/u/0/TP_fq_frqKw
>
>73, Bruce
>VE9QRP
>_______________________________________________
>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
Mark L. Hammond [N8MH]
------------------------------
Message: 12
Date: Fri, 5 Feb 2010 08:32:15 -0400
From: Bruce Robertson <ve9qrp@xxxxx.xxx>
Subject: [amsat-bb] Re: Video: micro-controller doppler tuning
To: AMSAT-BB <amsat-bb@xxxxx.xxx>
Message-ID:
<49657a761002050432m56f66b46y42e58c8f8ea39201@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
On Fri, Feb 5, 2010 at 8:01 AM, Mark L. Hammond <marklhammond@xxxxx.xxx>
wrote:
> Very nice, Bruce! ?What a great project.
>
> In the video you mention something about CW--is that an ID for the bird
currently being tracked, or what? ?I might have missed it...
Correct. The tracker announces the bird in CW as it rises and sets,
and it periodically announces its azimuth and elevation, like 'HO68
WSW H[igh]'. The final product is potentially so very small that I
didn't want a display screen to increase its size unreasonably.
What it *doesn't* do is provide any prediction. I figure you can print out
a chart of these things, or just take pot luck as the tracker scans
through the 10 or so birds for which its EEPROM provides space.
You can hear the CW announcement during the QSO at the beginning of
that video, but a clearer indication is 47s through this video:
http://www.youtube.com/watch?v=XgNcCGXeRyw
What the spectran view in the video shows is how the tracker stops
tuning the radio while it is announcing in CW, causing doppler shift
briefly to take over. I need to rewrite my CW library so that it calls
the tuning function during the elements that are long enough to allow
it, such as spaces between words.
73,
Bruce
--
http://ve9qrp.blogspot.com
>
> At 01:23 AM 2/5/2010 -0400, Bruce Robertson wrote:
>>The following video shows the current state of my
>>doppler-tuning-on-a-chip project. It shows the project's first QSOs
>>and ?its stability while tracking a LEO beacon.
>>
>>http://www.youtube.com/user/VE9QRP#p/a/u/0/TP_fq_frqKw
>>
>>73, Bruce
>>VE9QRP
>>_______________________________________________
>>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
>
>
> Mark L. Hammond ?[N8MH]
>
>
>
------------------------------
Message: 13
Date: Fri, 5 Feb 2010 08:44:12 -0600
From: "Dads" <w0sat@xxx.xxx>
Subject: [amsat-bb] Orbitron help
To: <amsat-bb@xxxxx.xxx>
Message-ID: <SNT125-DS111F4F3FDD75C8432E2A91E4540@xxx.xxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
Hi: Some one helped me before with an Orbitron problem but I lost his e-
mail address.
The problem is I got a new laptop with Vista
Everything works except it won,t download the keps on the
internet.
The strange part it says it is doing the download but it never
shows the update
on the sat /Orb info on the program.
When I first bring the program up on my computer it says to
update because they are over
30 days old.
So I say yes to up date but it never gets to the program.
I have worked it this for quite awhile with no success.
Jerry w0sat
------------------------------
Message: 14
Date: Fri, 05 Feb 2010 15:09:29 +0000
From: Nigel Gunn G8IFF/W8IFF <nigel@xxxxx.xxx>
Subject: [amsat-bb] Re: Orbitron help
To: Dads <w0sat@xxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <4B6C34A9.5000407@xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8; format=flowed
I've never had a problem with Orbitron.
It just works!
Just did an update from Celestrack although it's not the service I normally
use.
I recommend that you register with Space-Track and set up a favourites list
of just the satellites that you're
interested in.
On 05-Feb-10 14:44, Dads wrote:
> Hi: Some one helped me before with an Orbitron problem but I lost his e-
> mail address.
> The problem is I got a new laptop with Vista
> Everything works except it won,t download the keps on the
> internet.
> The strange part it says it is doing the download but it never
> shows the update
> on the sat /Orb info on the program.
> When I first bring the program up on my computer it says to
> update because they are over
> 30 days old.
> So I say yes to up date but it never gets to the program.
> I have worked it this for quite awhile with no success.
> Jerry w0sat
>
> _______________________________________________
> 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
>
>
>
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 9.0.733 / Virus Database: 271.1.1/2668 - Release Date: 02/04/10
19:35:00
>
--
Nigel A. Gunn, 1865 El Camino Drive, Xenia, OH 45385-1115, USA. tel +1 937
825 5032
Amateur Radio G8IFF W8IFF (was KC8NHF), e-mail nigel@xxxxx.xxx www
http://www.ngunn.net
Member of ARRL, GQRP #11396, QRPARCI #11644, SOC #548, Flying Pigs QRP
Club International #385,
Dayton ARA #2128, AMSAT-NA LM-1691, AMSAT-UK 0182, MKARS, ALC,
GCARES, XWARN.
------------------------------
Message: 15
Date: Fri, 5 Feb 2010 07:43:53 -0800 (PST)
From: John Geiger <aa5jg@xxxxx.xxx>
Subject: [amsat-bb] First time on HO68
To: amsat-bb@xxxxx.xxx
Message-ID: <358699.18350.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
I was on HO68 for the first time last night, and had a blast. Congrats to
the satellite team for a very well operating satellite-the downlink signal
was very strong here. I look forward to getting on this one again.
What was all of the packet I was hearing on it? Is that other amateurs
using packet through it, or some other type of user with packet?
73s John AA5JG
EM04to
------------------------------
Message: 16
Date: Fri, 5 Feb 2010 11:05:09 -0500
From: Dave Webb KB1PVH <kb1pvh@xxxxx.xxx>
Subject: [amsat-bb] Re: First time on HO68
To: John Geiger <aa5jg@xxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID:
<4be5f191002050805o18d42833i543c26d03a632c11@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
John,
You can read about it here. http://www.camsat.cn/
73,
Dave KB1PVH
Sent from my Verizon Wireless DROID
On Feb 5, 2010 10:58 AM, "John Geiger" <aa5jg@xxxxx.xxx> wrote:
I was on HO68 for the first time last night, and had a blast. Congrats to
the satellite team for a very well operating satellite-the downlink signal
was very strong here. I look forward to getting on this one again.
What was all of the packet I was hearing on it? Is that other amateurs
using packet through it, or some other type of user with packet?
73s John AA5JG
EM04to
_______________________________________________
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: 17
Date: Fri, 05 Feb 2010 11:05:17 -0500
From: David - KG4ZLB <kg4zlb@xxxxxxxxxx.xxx>
Subject: [amsat-bb] Re: First time on HO68
To: amsat-bb@xxxxx.xxx
Message-ID: <4B6C41BD.7000407@xxxxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
I too used HO-68 for the first time last night and found it incredibly
difficult to hold the repeater open for any decent length of time
despite having a good high pass. I question the sense in trying to run
digital and voice at the same time on the same frequency (although that
question is for minds much cleverer than mine(!); maybe that's where my
access problems were emanating from (?).
When I did get in though, the signal was very strong so congrats to the
team on that!
Thanks to W4AS and WA4NVM for providing me with my first two contacts on
this satellite - I hope the SSB mode is a bit easier to work!
73
David
KG4ZLB
EL96ck
On 2/5/2010 10:43, John Geiger wrote:
> I was on HO68 for the first time last night, and had a blast. Congrats to
the satellite team for a very well operating satellite-the downlink signal
was very strong here. I look forward to getting on this one again.
>
> What was all of the packet I was hearing on it? Is that other amateurs
using packet through it, or some other type of user with packet?
>
> 73s John AA5JG
> EM04to
>
>
>
>
> _______________________________________________
> 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: 18
Date: Fri, 5 Feb 2010 11:13:15 -0500
From: "Mark L. Hammond" <marklhammond@xxxxx.xxx>
Subject: [amsat-bb] Re: Video: micro-controller doppler tuning
To: Bruce Robertson <ve9qrp@xxxxx.xxx>
Cc: AMSAT-BB <amsat-bb@xxxxx.xxx>
Message-ID:
<5d8cecfe1002050813k553fc4dcta79abcde4128afe3@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Hi Bruce,
Thanks for the details.
Question--how does your code deal with 2 satellites in view at the
same? Do you have a priority function, so the higher priority bird
"wins"? And is there a way to change birds during a simulaneous pass
(i.e., override the priority)? Just trying to imagine the device in
actual operation.
Your project is slick! When we built the SAEBRTrack with the Basic
STAMP2 (which uses EasyComm output), I tried to get the frequency data
out and functional to a rig (at the time, a TS-790A). My hope was to
have one box that did both radio control and frequency control. I
got "close" but didn't have the skills to get it working correctly.
But never did we plan to have it calculating the frequencies in the
chip.
Keep up the good work!
73,
Mark N8MH
On Fri, Feb 5, 2010 at 7:32 AM, Bruce Robertson <ve9qrp@xxxxx.xxx> wrote:
> On Fri, Feb 5, 2010 at 8:01 AM, Mark L. Hammond <marklhammond@xxxxx.xxx>
wrote:
>> Very nice, Bruce! ?What a great project.
>>
>> In the video you mention something about CW--is that an ID for the bird
currently being tracked, or what? ?I might have missed it...
>
> Correct. The tracker announces the bird in CW as it rises and sets,
> and it periodically announces its azimuth and elevation, like 'HO68
> WSW H[igh]'. The final product is potentially so very small that I
> didn't want a display screen to increase its size unreasonably.
>
> What it *doesn't* do is provide any prediction. I figure you can print out
> a chart of these things, or just take pot luck as the tracker scans
> through the 10 or so birds for which its EEPROM provides space.
>
> You can hear the CW announcement during the QSO at the beginning of
> that video, but a clearer indication is 47s through this video:
> http://www.youtube.com/watch?v=XgNcCGXeRyw
>
> What the spectran view in the video shows is how the tracker stops
> tuning the radio while it is announcing in CW, causing doppler shift
> briefly to take over. I need to rewrite my CW library so that it calls
> the tuning function during the elements that are long enough to allow
> it, such as spaces between words.
>
> 73,
>
> Bruce
>
> --
> http://ve9qrp.blogspot.com
>>
>> At 01:23 AM 2/5/2010 -0400, Bruce Robertson wrote:
>>>The following video shows the current state of my
>>>doppler-tuning-on-a-chip project. It shows the project's first QSOs
>>>and ?its stability while tracking a LEO beacon.
>>>
>>>http://www.youtube.com/user/VE9QRP#p/a/u/0/TP_fq_frqKw
>>>
>>>73, Bruce
>>>VE9QRP
>>>_______________________________________________
>>>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
>>
>>
>> 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
>
--
Mark L. Hammond [N8MH]
------------------------------
_______________________________________________
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
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