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CX2SA > SATDIG 09.09.12 00:43l 596 Lines 18996 Bytes #999 (0) @ WW
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From: CX2SA@CX2SA.SAL.URY.SA
To : SATDIG@WW
Today's Topics:
1. BL02 Operation on Sunday 9/9 & Tuesday 9/11 (Tom Deeble - KA6SIP)
2. Re: Digital Slow Scan in space (Wouter Weggelaar)
3. Re: AO-10 and AO-16 (Alan P. Biddle)
4. Manchester Encoding (Tom Lubbers K8TL)
5. Re: Manchester Encoding (Mark L. Hammond)
6. PROITERES Launch (Mineo Wakita)
7. Camera on an antenna (James Luhn)
8. Re: PROITERES Launch (Trevor .)
9. NOVA Software (James Luhn)
10. Re: Camera on an antenna (Bob- W7LRD)
11. Re: NOVA Software (Adrian Engele)
12. Re: Camera on an antenna (Jim Jerzycke)
13. Re: Camera on an antenna (g0mrf@xxx.xxxx
----------------------------------------------------------------------
Message: 1
Date: Sat, 8 Sep 2012 03:58:16 -0400 (EDT)
From: Tom Deeble - KA6SIP <ka6sip@xxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] BL02 Operation on Sunday 9/9 & Tuesday 9/11
Message-ID: <8CF5BAED5FCEE2C-134C-2C91E@xxxxxxxxxxxx.xxxxxx.xxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Aloha,
For those looking for a contact with Hawaii here is my schedule for this
Sunday and Tuesday:
Sunday 9/9/12
FO-29 2116-2123Z 11:16-11:23 HAST 14:16-14:23 PDT
AO-27 2242-2248Z 12:42-12:48 HAST 15:42-15:48 PDT
Tuesday 9/11/12
AO-07 Mode B 0123-0134z (9/12/12) 15:23-15:34 HAST (9/11/12)
18:23-18:34 PDT
Sorry that Saturday didn't work out, but the Tuesday AO-07 pass was added to
help reach most of the way across the mainland. Thanks to Frank, K4FEG, for
the AO-07 info.
Hope to meet on the birds. So far things have been working well. I had a
contact with Frank, K4FEG, in Tennessee, Clayton, W5PFG, in Texas, and
David, W0DHB, in Colorado, on a late night (Hawaii time) pass of FO-29.
Signals from my end in Kauai were heard down to the horizon, even with an
FT-817 running at 5 watts!
73's - Tom
Tom Deeble - KA6SIP
Mt. Diablo Amateur Radio Club Membership Chairman
ka6sip@xxx.xxx
PACIFICON - ARRL National Convention Oct 12-14
------------------------------
Message: 2
Date: Sat, 8 Sep 2012 11:09:53 +0200
From: Wouter Weggelaar <wouterweg@xxxxx.xxx>
To: "Trevor ." <m5aka@xxxxx.xx.xx>
Cc: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Digital Slow Scan in space
Message-ID:
<CAKXf1rFtz_s-O9g8dLS0F6V2SN3fFVDcj=sU9jdo62Yf4ob7zg@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Hi All,
SSDV indeed shows you the images "as they come in"
Most High Altitude Balloons use RTTY with relatively slow baudrates.
The balloons are limited to using FSK modems in the ISM bands, because
of legal issues. Therefore, RTTY is the most feasable mode. Tim Zaman
here in the Netherlands has run 1200bd RTTY before on a balloon. see
http://www.timzaman.com/?page_id=1106&lang=en
He used the faster baudrate to send bigger pictures in the same time
and was running two baudrates alternating.
For satellites, you could run a more complex downlink off course, with
less transmission time and FEC.
64QAM might work on bigger sats, but I think it is not feasible for a
one or 2u satellite at the moment. I would place my bet on flying
BPSK/QPSK for now, and more complex things later.
Needless to say that I agree with David about the handshaking and
ACKs, but the balloons don't do that either.
I do not know anything on HF SSTV, but I have seen SSDV working just fine.
Wouter
PA3WEG
On Sat, Sep 8, 2012 at 9:54 AM, Trevor . <m5aka@xxxxx.xx.xx> wrote:
> --- On Fri, 7/9/12, g0mrf@xxx.xxx <g0mrf@xxx.xxx> wrote:
>> An essential feature would be that whenever a 'packet' of
>> data is received, that data is displayed rather than waiting
>> for the complete image to be received error free.
>> I couldn't find much on DRM encoding but I think it was
>> originally intended for digital voice in a narrow bandwidth
>> so it sounds suitable for low power satellite use.
>
> WinDRM (and DRMDV/FDMDV) were written by Cesco Lanza HB9TLK some info at
> http://n1su.com/windrm/download.html
>
> To achieve a reasonable data rate it's usually run at 64QAM (with full SSB
bandwidth). 64 QAM is less robust and requires a higher S/N.
>
> I've no idea what the practical effects of a high Doppler shift would be,
although a computerized station with frequent Doppler correction should
track it okay.
>
> Is the data rate on High Altitude Balloons about 300 bps ? I've never
received any images from them but if 300 bps is correct then the images are
either low res or take a long time to send ?
>
> Analog SSTV is still going strong some 6 years after the introduction of
Digital SSTV perhaps indicating that existing Digital SSTV approaches do not
yet match the performance/robustness/ease of use of analog for HF working.
>
> 73 Trevor M5AKA
>
>
> _______________________________________________
> 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: 3
Date: Sat, 8 Sep 2012 07:47:01 -0500
From: "Alan P. Biddle" <APBIDDLE@xxxxxx.xxx>
To: "'Gary \"Joe\" Mayfield'" <gary_mayfield@xxxxxxx.xxx>,
"'AMSAT-BB'" <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: AO-10 and AO-16
Message-ID: <284B64B331994E6DA3973A8396CC465F@xxxxxx>
Content-Type: text/plain; charset="us-ascii"
Joe,
Sure. They are in the AMATEUR.TXT file from CelesTrak, or direct from Space
Track:
PHASE 3B (AO-10)
1 14129U 83058B 12175.07756213 -.00000148 00000-0 10000-3 0 9907
2 14129 27.2164 331.8891 6028293 170.2637 211.0686 2.05868475190346
73s,
Alan
WA4SCA
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of Gary "Joe" Mayfield
Sent: Friday, September 07, 2012 10:33 PM
To: 'AMSAT-BB'
Subject: [amsat-bb] Re: AO-10 and AO-16
Does anyone even have KEPS for AO-10?
73,
Joe kk0sd
-----Original Message-----
From: Mark L. Hammond [mailto:marklhammond@xxxxx.xxxx
Sent: Friday, September 07, 2012 5:43 AM
To: Gary "Joe" Mayfield; 'AMSAT-BB'
Subject: Re: [amsat-bb] AO-10 and AO-16
Hi Joe,
Actually, I checked on AO-16 last Saturday. I didn't even get the
transmitter to come on, let alone stay on. It was a low pass, and I hope to
check again in the next few weeks. If you'll remember, the problem with
keeping the satellite ON is temperature related. If it gets lots of sun
(little eclipse), it will be warm enough to remain on. Otherwise, it
won't...and the orbit is such that it doesn't get enough sun--and it
probably won't for another 10 years or so. But I check periodically.
About every week or two Drew KO4MA and I try to turn AO-51 back on. My
latest try was last Saturday. Nothing heard.
IO-26 is still up there, and still humming; it needs to be turned on from
time to time, so I do that. But we haven't figured out how to run it in
voice like we did with AO-16; it doesn't appear possible.
Don't know about AO-10; I haven't listened for a while. And I don't know if
it is expected to come on without commanding (which I cannot do).
73,
Mark N8MH
At 10:28 PM 9/6/2012 -0500, Gary \"Joe\" Mayfield wrote:
>Has anyone checked on AO-10 or AO-16 lately?
>
>
>
>73,
>
>Joe kk0sd
>
>_______________________________________________
>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
_______________________________________________
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: 4
Date: Sat, 8 Sep 2012 09:32:40 -0400 (GMT-04:00)
From: Tom Lubbers K8TL <k8tl@xxxxxxxxx.xxx>
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Manchester Encoding
Message-ID:
<29020075.1347111160534.JavaMail.root@xxxxxxxxxx.xxx.xx.xxxxxxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Didn't know there was anything left with Manchester encoding!! There is a
PSK-1/DFMTNC on Ebay with a few days to go.
Tom K8TL
------------------------------
Message: 5
Date: Sat, 8 Sep 2012 09:48:54 -0400
From: "Mark L. Hammond" <marklhammond@xxxxx.xxx>
To: Tom Lubbers K8TL <k8tl@xxxxxxxxx.xxx>
Cc: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Manchester Encoding
Message-ID:
<CAPRXzypZ8_fE=NoMh9rPsM2vh2yCOcki8PBEx_BN_j-cq6awkQ@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Tom,
For now, about the only thing is IO-26. It spits out telemetry from
time to time, in bursts of "5' frames. It often burps as it goes into
and out of eclipse, for one thing... There doesn't appear to be a
timed schedule for transmission.
And of course, you can use MixW to decode the packets with a sound card!
Mark N8MH
On Sat, Sep 8, 2012 at 9:32 AM, Tom Lubbers K8TL <k8tl@xxxxxxxxx.xxx> wrote:
> Didn't know there was anything left with Manchester encoding!! There is a
PSK-1/DFMTNC on Ebay with a few days to go.
>
> Tom K8TL
> _______________________________________________
> 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: 6
Date: Sat, 8 Sep 2012 22:58:12 +0900
From: "Mineo Wakita" <ei7m-wkt@xxxxxxxxx.xx.xx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] PROITERES Launch
Message-ID: <0AEF86D32F374E35B84E0E9281EEBCE4@xxxxxxxxxxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-2022-jp";
reply-type=original
PROITERES, Osaka Institute of Technology, Japan
Launch : 9 Sep 2012 4:21UTC (9:51IST)
Vehicle: PSLV-CA with SPOT6 and mRESINS
Site : Satish Dhawan Space Centre, Sriharikota, India
30cm^3, 10kg, 10W, 437.485MHz FM/AFSK
http://www.oit.ac.jp/elc/~satellite/index-e.html
http://www.ne.jp/asahi/hamradio/je9pel/proiters.htm
JE9PEL, Mineo Wakita
------------------------------
Message: 7
Date: Sat, 08 Sep 2012 12:22:21 -0500
From: James Luhn <luhn@xx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Camera on an antenna
Message-ID: <504B7ECD.9070607@xx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Please don't ya'll laugh too hard at me. Has anyone ever mounted a
camera on a beam? Now I am not trying to see AO40, but I would like to
simply double check the location of my beam for eme. If anyone has
mounted a camera on a beam, I would be interested in what you used.
Yes, I know all about beam width vs the moon. I just hate to call CQ
with my beams pointed to the ground due to some Murphy type of failure.
73,
-james
W5AOO
------------------------------
Message: 8
Date: Sat, 8 Sep 2012 18:31:25 +0100 (BST)
From: "Trevor ." <m5aka@xxxxx.xx.xx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: PROITERES Launch
Message-ID:
<1347125485.916.YahooMailClassic@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
Thanks Mineo for the info on this Pulsed Plasma Thruster microsat.
There is a video of the PSLV-C21 launch vehicle being prepared for take-off at
http://www.uk.amsat.org/?p=10201
73 Trevor M5AKA
------------------------------
Message: 9
Date: Sat, 08 Sep 2012 12:35:18 -0500
From: James Luhn <luhn@xx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] NOVA Software
Message-ID: <504B81D6.3010503@xx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
I have been tinkering with NOVA Software. I simply cannot figure out
how to add additional satellites like SO50. I have pointed the update
to various sites that I thought should work but I have not succeeded in
getting so50 and some other amateur satellites to show up. Any advice
would be appreciated. I am sure I am making a simple mistake somehow,
someway. I guess that is what I deserve for tinkering.
73,
-james
W5AOO
------------------------------
Message: 10
Date: Sat, 8 Sep 2012 17:37:50 +0000 (UTC)
From: Bob- W7LRD <w7lrd@xxxxxxx.xxx>
To: James Luhn <luhn@xx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Camera on an antenna
Message-ID:
<514697332.408288.1347125870986.JavaMail.root@xxxxxxx.xxxxxxxxxx.xx.xxxx.xxxxx
xx.xxx>
Content-Type: text/plain; charset=utf-8
That's cool idea Jim...could even aim it at the neighbors
73 Bob W7LRD
----- Original Message -----
From: "James Luhn" <luhn@xx.xxx>
To: amsat-bb@xxxxx.xxx
Sent: Saturday, September 8, 2012 10:22:21 AM
Subject: [amsat-bb] Camera on an antenna
Please don't ya'll laugh too hard at me. Has anyone ever mounted a
camera on a beam? Now I am not trying to see AO40, but I would like to
simply double check the location of my beam for eme. If anyone has
mounted a camera on a beam, I would be interested in what you used.
Yes, I know all about beam width vs the moon. I just hate to call CQ
with my beams pointed to the ground due to some Murphy type of failure.
73,
-james
W5AOO
_______________________________________________
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: Sat, 8 Sep 2012 11:02:56 -0700 (PDT)
From: Adrian Engele <aa5uk@xxxxx.xxx>
To: James Luhn <luhn@xx.xxx>, "amsat-bb@xxxxx.xxxx
<amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: NOVA Software
Message-ID:
<1347127376.24817.YahooMailNeo@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1
Hi James,
Very simple.
- Go to AMSAT.org
-Look for Sat Status and find SO-50, you will find it's other name under
Saudisat-C.?? You can do the same for other satellites.
-Open Nova go to Setup tab on top left of screen. Open drop down list look
for Satellites
-Open the Satellites List look for Saudisat-C. Click on the satellite.
-In the Satellite Editor screen rename it to SO-50 or SO50 as you desire.
-Then press OK to save.
-Open Satellite page again. Go to theGroups Tab, look for Amateur.
-You will see a list of amateur satellites that are stored in your group
list. You can add satellites by dragging them over from the main list to the
Group list or you can highlight a satellite and then hit delete.
-Update the list to your liking and then press OK.
You should be good to go. If you have any other questions drop me a note
offline aa5uk at yahoo.com.
There is also a very good manual on Nova's website.
Have fun!
73, Adrian AA5UK
>________________________________
> From: James Luhn <luhn@xx.xxx>
>To: amsat-bb@xxxxx.xxx
>Sent: Saturday, September 8, 2012 12:35 PM
>Subject: [amsat-bb] NOVA Software
>
>I have been tinkering with NOVA Software.? I simply cannot figure out how
to add additional satellites like SO50.? I have pointed the update to
various sites that I thought should work but I have not succeeded in getting
so50 and some other amateur satellites to show up.? Any advice would be
appreciated. I am sure I am making a simple mistake somehow, someway.? I
guess that is what I deserve for tinkering.
>
>73,
>-james
>W5AOO
>_______________________________________________
>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: 12
Date: Sat, 08 Sep 2012 18:05:20 +0000
From: Jim Jerzycke <kq6ea@xxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Camera on an antenna
Message-ID: <504B88E0.7050406@xxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Greg, KO6TH, has done this.
I've got enough stuff to do it, and now that my antennas are down, I
might add a camera to the cross-boom.
Here's Greg's website: http://home.wavecable.com/~ko6th/
73, Jim KQ6EA
On 09/08/2012 05:22 PM, James Luhn wrote:
> Please don't ya'll laugh too hard at me. Has anyone ever mounted a
> camera on a beam? Now I am not trying to see AO40, but I would like
> to simply double check the location of my beam for eme. If anyone has
> mounted a camera on a beam, I would be interested in what you used.
> Yes, I know all about beam width vs the moon. I just hate to call CQ
> with my beams pointed to the ground due to some Murphy type of failure.
>
> 73,
> -james
> W5AOO
> _______________________________________________
> 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: 13
Date: Sat, 8 Sep 2012 14:48:36 -0400 (EDT)
From: g0mrf@xxx.xxx
To: luhn@xx.xxxx amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Camera on an antenna
Message-ID: <8CF5C09AFD53969-1A10-31B6F@xxxxxxxxxxxx.xxxxxx.xxx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
Yes, I've done that.
Only on a dx-pedition but it was also for EME.
I used a camera that needed to be plugged into 12V and produced a black
and white image in video format so it could be sent straight to a
monitor.
What I found was that the moon was quite small on the screen and it
wasn't obvious where to point the 4 x 19 ele yagis for 70cm. The
solution.....Easy. Go outside and look down the booms and when I was
happy it was in the right direction, go back inside and mark a cross
with a felt tip marker on the TV screen.
Worked just fine. If you are really 'keen' you can add a circle around
the cross representing the -3dB points.
73
David G0MRF
-----Original Message-----
From: James Luhn <luhn@xx.xxx>
To: amsat-bb <amsat-bb@xxxxx.xxx>
Sent: Sat, 8 Sep 2012 18:38
Subject: [amsat-bb] Camera on an antenna
Please don't ya'll laugh too hard at me. Has anyone ever mounted a
camera on a beam? Now I am not trying to see AO40, but I would like to
simply double check the location of my beam for eme. If anyone has
mounted a camera on a beam, I would be interested in what you used.
Yes, I know all about beam width vs the moon. I just hate to call CQ
with my beams pointed to the ground due to some Murphy type of failure.
73,
-james
W5AOO
_______________________________________________
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
------------------------------
_______________________________________________
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 7, Issue 291
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