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CX2SA > SATDIG 11.12.08 14:24l 651 Lines 19823 Bytes #999 (0) @ WW
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From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
Today's Topics:
1. Re: Spacecraft Magnetic Attitude (Clint Bradford)
2. 9600 baud+ sound card (Peter)
3. AMSAT-BB Azimuth predictions true or magnetic north (Call Sign)
4. Uni_trac and Vista (John Price)
5. Re: AMSAT-BB Azimuth predictions true or magnetic north
(Nigel Gunn G8IFF/W8IFF)
6. Satellite experimenter's handbook (Nigel Gunn G8IFF/W8IFF)
7. Re: Satellite experimenter's handbook (David - KG4ZLB/M?ZLB)
8. AO-51 L/U mode just fine (DeYoung James)
9. Re: AO-51 L/U mode just fine (Andrew Glasbrenner)
10. Technical question regarding the long term performance of
nylon in space (Graham Shirville)
11. ISS on 9600baud (Bob Herrell)
12. Re: Technical question regarding the long term performanceof
nylon in space (Robert Bruninga)
13. Re: Technical question regarding the long term performance of
nylon in space (Joe Fitzgerald)
14. Re: A great day in the Satellite Lab! (Joe Fitzgerald)
15. Re: AO-51 L/U mode just fine (w7lrd@xxxxxxx.xxxx
16. CO8LY in AO51 (Eduardo Somoano C)
17. ISS 9600bps Heard in Jakarta ( Dirgantara R YF0EEE)
----------------------------------------------------------------------
Message: 1
Date: Wed, 10 Dec 2008 12:18:33 -0800
From: Clint Bradford <clintbrad4d@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Spacecraft Magnetic Attitude
To: amsat-bb@xxxxx.xxx
Message-ID: <EE96D7DC-B406-40D9-A42A-09A502F58648@xxxxxxxxx.xxx>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
> www.aprs.org/attitudes.html
Fascinating data!
Clint Bradford
P.S. - The very first phrase of the text, "Magentic Stabilization,"
had me looking for my scientific dictionary, Bob! (grin)
------------------------------
Message: 2
Date: Wed, 10 Dec 2008 16:25:59 -0500
From: Peter <roi@xxxxxxxxx.xxx>
Subject: [amsat-bb] 9600 baud+ sound card
To: AMSAT-BB@xxxxx.xxx
Message-ID: <003c01c95b0e$1898b2e0$6901a8c0@xxxxx>
Content-Type: text/plain; charset=Windows-1252
Hi All,
Has anyone had any success receiving 9600 baud using the Tigertronics,
SignaLink sound card with AGWPE and UISS. I believe I have it configured
correctly, the only problem might be the audio isolators in the sound card
that might not allow the signal to pass. If this setup has worked for you,
I would appreciate any insights, thank you.
73,
Pete, WB2OQQ
------------------------------
Message: 3
Date: Wed, 10 Dec 2008 13:33:54 -0800
From: "Call Sign" <ki6rrq@xxx.xxx>
Subject: [amsat-bb] AMSAT-BB Azimuth predictions true or magnetic
north
To: <amsat-bb@xxxxx.xxx>
Message-ID: <004c01c95b0f$007dc7d0$6401a8c0@xxxxxxxxxxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
I have asked so many Hams, a few pilots and mariners, here locally and none
of them know the answer to my question, I know this body will have it;
First off, I know that the difference between magnetic north and true north
is not that much and is not affecting my success on my hand held Arrow II
antenna that much, as it probably has the least amount of directivity that a
beam antenna can have. However, I have been using a compass, therefore
using magnetic north and in the interest of better understanding what I am
doing, I just want to know, for sure.
So......... when we get these azimuth degrees in the pass prediction charts,
saying where we will acquire the signal, its high point and the loss of the
signal; do these degrees relate to magnetic or true north? Second part,
are there any reporting birds that differ in which of those two, that are
being used and is the answer the same for the International Space Station?
Thanks in advance for your response!
Rich KI6RRQ
------------------------------
Message: 4
Date: Wed, 10 Dec 2008 16:46:45 -0500
From: "John Price" <n4qwf1@xxxxx.xxx>
Subject: [amsat-bb] Uni_trac and Vista
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Message-ID:
<8d1b8e80812101346x165fe958i61ede2fe1e740cd7@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Has anyone been successful running the Uni_trac serial port version
software with Windows Vista? The comport is not an issue with the Bifo
BF-810 converter cable but the software that came with the Uni_Trac
just crashes the laptop. No joy with that.
73's << John
--
N4QWF Amateur Radio Operator
AO-7,AO-27,SO-50,AO-51,VO-52,ISS
Internet N4QWF@xxxxx.xxx
Echolink nodes #110903 -L #388463
Formerly KC4AHW VK3FEZ
Amsat Member #27845
DXCC #33,478
VUCC SAT #135
WAS SAT #296
51 on AO-51 #13
LON -79.256 LAT 37.459 Grid FM07il
>From the Foothills of the Blueridge
*Life should not be a journey to the grave with the intention of
arriving safely in a pretty and well preserved body, but rather to
skid in broadside, thoroughly used up, totally worn out, and loudly
proclaiming - "WOW, What a ride!"
------------------------------
Message: 5
Date: Wed, 10 Dec 2008 21:59:20 +0000
From: Nigel Gunn G8IFF/W8IFF <nigel@xxxxx.xxx>
Subject: [amsat-bb] Re: AMSAT-BB Azimuth predictions true or magnetic
north
To: Call Sign <ki6rrq@xxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <49403BB8.1060203@xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
It must be true or grid north, otherwise your software would need to know the
magnetic variation.
The effect of magnetic variation depends on your location.
Call Sign wrote:
>
> So......... when we get these azimuth degrees in the pass prediction charts,
> saying where we will acquire the signal, its high point and the loss of the
> signal; do these degrees relate to magnetic or true north? Second part,
> are there any reporting birds that differ in which of those two, that are
> being used and is the answer the same for the International Space Station?
> Thanks in advance for your response!
--
<><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
Nigel A. Gunn. G8IFF W8IFF (have also held KC8NHF, M0NHF, 9H3GN)
1865 El Camino Drive, Xenia, OH 45385-1115, USA 937 825 5032
e-mail nigel@xxxxx.xxx www http://www.ngunn.net
Member of ARRL, GQRP #11396, QRPARCI #11644, SOC #548, Flying Pig #385,
Dayton ARA #2128, AMSAT-NA LM-1691, AMSAT-UK, MKARS,
ALC
<><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
------------------------------
Message: 6
Date: Wed, 10 Dec 2008 22:11:04 +0000
From: Nigel Gunn G8IFF/W8IFF <nigel@xxxxx.xxx>
Subject: [amsat-bb] Satellite experimenter's handbook
To: amsat-bb@xxxxx.xxx
Message-ID: <49403E78.1030601@xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Was just flicking through my still much valued copy and two questons sprung to
mind.
Is Nadia King still playing with dad, Jan's satellites? (page 4-9)
When is Martin going to write a third edition? This one is 18 years old.
--
<><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
Nigel A. Gunn. G8IFF W8IFF (have also held KC8NHF, M0NHF, 9H3GN)
1865 El Camino Drive, Xenia, OH 45385-1115, USA 937 825 5032
e-mail nigel@xxxxx.xxx www http://www.ngunn.net
Member of ARRL, GQRP #11396, QRPARCI #11644, SOC #548, Flying Pig #385,
Dayton ARA #2128, AMSAT-NA LM-1691, AMSAT-UK, MKARS,
ALC
<><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
------------------------------
Message: 7
Date: Wed, 10 Dec 2008 17:36:17 -0500
From: David - KG4ZLB/M?ZLB <m0zlb@xxxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Satellite experimenter's handbook
To: nigel@xxxxx.xxxx amsat bb <amsat-bb@xxxxx.xxx>
Message-ID: <49404461.4090008@xxxxxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
This <http://www.arrl.org/news/stories/2008/10/29/10415/?nc=1> appears
to be the ARRL's latest offering for Satellites Nigel. You probably
already have seen this though!
David
KG4ZLB/M0ZLB
www.kg4zlb.com
Nigel Gunn G8IFF/W8IFF wrote:
> Was just flicking through my still much valued copy and two questons sprung
to mind.
>
> Is Nadia King still playing with dad, Jan's satellites? (page 4-9)
> When is Martin going to write a third edition? This one is 18 years old.
>
>
>
>
------------------------------
Message: 8
Date: Wed, 10 Dec 2008 15:13:24 -0800 (PST)
From: DeYoung James <deyoung_james@xxxxx.xxx>
Subject: [amsat-bb] AO-51 L/U mode just fine
To: amsat-bb <amsat-bb@xxxxx.xxx>
Cc: Jim DeYoung <n8oq@xxxx.xxx>
Message-ID: <501134.27905.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Greetings,
Just a reminder for those with L/U capability the AO-51 control team put the
second system in L/U mode again after the reset last month. I have been full
quieting talking to myself two evenings in row using my 10-watts and 10-elem.
cheap yagi on L-band. I sound really good, btw, hi, hi. L/U on through the
14th, hope to hear someone else...
73, N8OQ, Jim, FM18lu
------------------------------
Message: 9
Date: Wed, 10 Dec 2008 18:21:46 -0500
From: "Andrew Glasbrenner" <glasbrenner@xxxxxxxxxx.xxx>
Subject: [amsat-bb] Re: AO-51 L/U mode just fine
To: <deyoung_james@xxxxx.xxx>, <amsat-bb@xxxxx.xxx>
Message-ID: <D4304901C6F24B569A0A89220F4D8F64@xxxxxxxxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
I was on a few minutes this AM...same thing. I did hear VE3NPC at the
beginning of the pass, but that was it.
73, Drew
----- Original Message -----
From: "DeYoung James" <deyoung_james@xxxxx.xxx>
To: "amsat-bb" <amsat-bb@xxxxx.xxx>
Cc: "Jim DeYoung" <n8oq@xxxx.xxx>
Sent: Wednesday, December 10, 2008 6:13 PM
Subject: [amsat-bb] AO-51 L/U mode just fine
> Greetings,
>
> Just a reminder for those with L/U capability the AO-51 control team put
> the second system in L/U mode again after the reset last month. I have
> been full quieting talking to myself two evenings in row using my 10-watts
> and 10-elem. cheap yagi on L-band. I sound really good, btw, hi, hi. L/U
> on through the 14th, hope to hear someone else...
>
> 73, N8OQ, Jim, FM18lu
>
>
>
> _______________________________________________
> 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: 10
Date: Wed, 10 Dec 2008 23:24:39 -0000
From: "Graham Shirville" <g.shirville@xxxxxxxxxx.xxx>
Subject: [amsat-bb] Technical question regarding the long term
performance of nylon in space
To: <amsat-bb@xxxxx.xxx>
Message-ID: <9AA6233C72DE42C388C087B972C79E3F@xxxxxxx.xxxxx>
Content-Type: text/plain; charset="iso-8859-1"
Hi all,
I think this is a new one!
It has been suggested that the nylon "fishing line" that is sometime used on
space craft to retain a deployable item like an antenna or sensor will decay
quickly in space due to radiation and out gassing destroying its structure.
This might mean that the usual "hot" knife type cutter system could be
redundant if quick release is not a mission requirement.
Does anyone have any data on this or know if any research has been done?
thanks
Graham
G3VZV
------------------------------
Message: 11
Date: Wed, 10 Dec 2008 17:24:42 -0600
From: Bob Herrell <aj5c@xxx.xxx>
Subject: [amsat-bb] ISS on 9600baud
To: amsat-bb@xxxxx.xxx
Message-ID: <49404FBA.4040108@xxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
I was finally able to digipeat thru the ISS today (AJ5C-3) using only my
Kenwood D700 and a vertical antenna.
I have not been able to decode anything using UISS and my IC-910H.
73,
Bob Herrell, AJ5C
------------------------------
Message: 12
Date: Wed, 10 Dec 2008 19:31:33 -0500
From: "Robert Bruninga" <bruninga@xxxx.xxx>
Subject: [amsat-bb] Re: Technical question regarding the long term
performanceof nylon in space
To: "'Graham Shirville'" <g.shirville@xxxxxxxxxx.xxx>,
<amsat-bb@xxxxx.xxx>
Message-ID: <0C476480F335432A89DBC5ABFBB5EB44@xxxxx.xxxx.xxx>
Content-Type: text/plain; charset="US-ASCII"
> It has been suggested that the nylon
> "fishing line" that is sometime used
> on space craft to retain a deployable
> item like an antenna or sensor will
> decay quickly in space due to
> radiation and out gassing...
>
> Does anyone have any data on this or
> know if any research has been done?
Yes! We tried to test this on PCSAT. We had a 6" string across
one face pulled by a spring to a microswitch. The idea is that
when the string broke, then the switch would close and we would
see a change in the telemetry. It is the last "1" bit in the
PCSAT telemetry.
We even prepared a dozen strings for testing on the ground in
Arizona. See a picture of the test set-up on
www.aprs.org/pcsat/springs.jpg. For the life of me, I cannot
find a picture of the string on the satellite, though I stumbled
across it just YESTERDAY for the first time in 7 years!
Anyway, in the 12 days sitting on the launch pad, apparently the
string broke before launch. But on the photo above, is the
detail about when the other 9 strings broke.
The string we were using was just a few strands pulled from the
rather large polypropelene twine that you buy from Home depot.
The strings were pulled across a rather sharp edge on the test
stand shown. Handling and vibration would also contribute to
failure of the string at that point.
We tried...
Bob, WB4APR
>
> thanks
>
> Graham
> G3VZV
> _______________________________________________
> 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: Wed, 10 Dec 2008 21:35:50 -0500
From: Joe Fitzgerald <jfitzgerald@xxxx.xxx.xxx>
Subject: [amsat-bb] Re: Technical question regarding the long term
performance of nylon in space
Cc: amsat-bb@xxxxx.xxx
Message-ID: <49407C86.3030209@xxxx.xxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Graham Shirville wrote:
> Hi all,
>
> I think this is a new one!
>
> It has been suggested that the nylon "fishing line" that is sometime used on
space craft to retain a deployable item like an antenna or sensor will decay
quickly in space due to radiation and out gassing destroying its structure.
>
>
If I remember were some samples of plastic on the Long Duration Exposure
Facility that were completely gone by the time a shuttle retrieved it.
If memory serves elemental oxygen was involved. Check out
http://setas-www.larc.nasa.gov/LDEF/index.html for details.
-Joe KM1P
------------------------------
Message: 14
Date: Wed, 10 Dec 2008 21:40:40 -0500
From: Joe Fitzgerald <jfitzgerald@xxxx.xxx.xxx>
Subject: [amsat-bb] Re: A great day in the Satellite Lab!
To: bruninga@xxxx.xxx
Cc: amsat-bb@xxxxx.xxx
Message-ID: <49407DA8.20909@xxxx.xxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Robert Bruninga wrote:
> A great day in the Satelliite Lab!
>
>
And Navy beat Army last Saturday. What more could you ask for?
-Joe KM1P
------------------------------
Message: 15
Date: Thu, 11 Dec 2008 06:16:21 +0000
From: w7lrd@xxxxxxx.xxx
Subject: [amsat-bb] Re: AO-51 L/U mode just fine
To: "Andrew Glasbrenner" <glasbrenner@xxxxxxxxxx.xxx>,
<deyoung_james@xxxxx.xxx>, <amsat-bb@xxxxx.xxx>
Message-ID:
<121120080616.19081.4940B0350000365700004A8922155786740B9D04C999@xxxxxxx
.xxx>
Content-Type: text/plain
Drew,Jim etc
I will make an effort to be on L/U mode tomorrow (12/11) during the afternoon
passes over the U.S. I have 70W on 1.2Ghz but current antenna is 22 el. yagi
with no elevation ability.
73 Bob W7LRD
Seattle
--
"if this were easy, everyone would be doing it"
-------------- Original message --------------
From: "Andrew Glasbrenner" <glasbrenner@xxxxxxxxxx.xxx>
> I was on a few minutes this AM...same thing. I did hear VE3NPC at the
> beginning of the pass, but that was it.
>
> 73, Drew
>
> ----- Original Message -----
> From: "DeYoung James"
> To: "amsat-bb"
> Cc: "Jim DeYoung"
> Sent: Wednesday, December 10, 2008 6:13 PM
> Subject: [amsat-bb] AO-51 L/U mode just fine
>
>
> > Greetings,
> >
> > Just a reminder for those with L/U capability the AO-51 control team put
> > the second system in L/U mode again after the reset last month. I have
> > been full quieting talking to myself two evenings in row using my 10-watts
> > and 10-elem. cheap yagi on L-band. I sound really good, btw, hi, hi. L/U
> > on through the 14th, hope to hear someone else...
> >
> > 73, N8OQ, Jim, FM18lu
> >
> >
> >
> > _______________________________________________
> > 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: 16
Date: Wed, 10 Dec 2008 19:52:46 -0500
From: "Eduardo Somoano C" <co8ly@xxxxxx.xxxxx.xxx.xx>
Subject: [amsat-bb] CO8LY in AO51
To: "Gould Smith" <gouldsmi@xxxxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxxx "VHF Lista D." <vhf@xxxx.xxxxxxxx.xxx>
Message-ID: <004c01c95b2a$f77eb4c0$4bd0fea9@xxxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
I have some questions on the AO51....
In the new frequency of TX the PL -67Hz is necessary????
This now working Voice FM o only digital mode
This week I will be calling CQ in the AO51...
Good luck.
Eduardo. CO8LY
FL20la
------------------------------
Message: 17
Date: Thu, 11 Dec 2008 06:56:53 +0700
From: " Dirgantara R YF0EEE" <enggi1401@xxxxx.xxx>
Subject: [amsat-bb] ISS 9600bps Heard in Jakarta
To: <amsat-bb@xxxxx.xxx>, <id-aprs@xxxxxxxxxxx.xxx>
Message-ID: <00fd01c95b22$fb8ae7d0$d2203a72@xxxxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
Hi All
Just for Heard ISS today morning in Jakarta Indonesia , I can receive a big
signal From ISS , can reach S9 in freq 145.825 - 9600 bps with X300 Vertical
Antena, also I can Uplink to ISS only 15 Watts.
My working Condition Use Alinco DR-635 Radio with EJ-50U tasco modem
9600G3RUH.
Dirgan
73 de YF0EEE
attach a raw data , Iam receive from ISS:
cmd:k
CQ CQ TESt VIA ISS FROM JAKARTA........de YF0EEE
k
CQ CQ TEST
RS0ISS-5>ID <UI R>:RS0ISS/R
YF0EEE-2>APZ635,RS0ISS-5* <UI R>:CQ CQ TEST
HELOO FROM JAKARTA.... 73 DE YF0EEE
CQ CQ TEST
RS0ISS-5>0P0PP0,SGATE,WIDE <UI R>:'vXl '/]APRS/BBS & Packet on.
Hello From Jakarta......pls QSL... 73 de YF0EEE
Hello from Jakarta ....73 de YF0EEE
RS0ISS-5>0P0PP0,SGATE,WIDE <UI R>:'vXl '/]APRS/BBS & Packet on.
RS0ISS-5>0P0PP0,YF0EEE-2,RS0ISS-5* <UI R>:'vXl '/]APRS/BBS & Packet on.
RS0ISS-5>0P0PP0,SGATE,WIDE <UI R>:'vXl '/]APRS/BBS & Packet on.
cmd:mheard
YF0EEE-2* 01:32:59
RS0ISS-5* 01:35:38
cmd:k
CQ CQ VIA ISS .....73 de YF0EEE
YF0EEE-2>APZ635,RS0ISS-5* <UI R>:CQ CQ VIA ISS .....73 de YF0EEE
HELLO FROM JAKARTA......de YF0EEE
YF0EEE-2>APZ635,RS0ISS-5* <UI R>:HELLO FROM JAKARTA.N...de YF0EEE
Full Skill 60 Db in Jakarta Signal ISS.....73 de YF0EEE
cmd:mheard
RS0ISS-5* 01:35:38
YF0EEE-2* 01:37:03
cmd:
cmd:
cmd:k
YF0EEE-2>APZ635,RS0ISS-5* <UI R>:
Hello ,..Congrat 25 th Aniversary... 73 de YF0EEE
cmd:mheard
RS0ISS-5* 01:35:38
YF0EEE-2* 01:38:28
------------------------------
_______________________________________________
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 3, Issue 645
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