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CX2SA > SATDIG 30.12.08 23:53l 233 Lines 8274 Bytes #999 (0) @ WW
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Subj: AMSAT-BB-digest V3 683
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Sent: 081230/2244Z @:CX2SA.LAV.URY.SA #:62877 [Minas] FBB7.00e $:62877_CX2SA
From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
Today's Topics:
1. ARISS Antenna Specifics (Frank H. Bauer)
2. Re: ARISS antennae (Alan Sieg WB5RMG)
3. Re: LOTW and Logging Info (Alan Sieg WB5RMG)
4. ISS Repeater (Ron Miles)
5. Re: lindenblad observations (Joe Krepps)
6. Re: ISS Repeater (Greg D.)
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Message: 1
Date: Tue, 30 Dec 2008 12:52:33 -0500
From: "Frank H. Bauer" <ka3hdo@xxxxxxx.xxx>
Subject: [amsat-bb] ARISS Antenna Specifics
To: <amsat-bb@xxxxx.xxx>
Message-ID: <003a01c96aa7$68a58350$f1b2b683@xx.xxxx.xxx>
Content-Type: text/plain; charset="US-ASCII"
All,
The ARISS L-band/S-band antenna systems are Left Hand Circularly Polarized.
There are some good details of the antenna systems in this paper:
http://www.amsat.org/amsat/ariss/Papers/Phase%202%20AGM03Final.pdf
And this presentation:
http://www.amsat.org/amsat/ariss/Presentations/AMSAT%20Symposiums/AMSAT03.pd
f
Chart 25 of the above presentation shows the antenna locations looking down
the axis of the Service Module. In this picture, the ISS velocity vector is
either in or out of the page and Earth is towards the bottom of the page.
This assumes they are in the normal Earth pointing mode (which is not always
a given).
We have some good on-orbit views of the antennas in this set of charts too.
Enjoy!
I hope this helps. And thanks for all the interest in ARISS.
73, Frank, KA3HDO
------------------------------
Message: 2
Date: Tue, 30 Dec 2008 12:02:22 -0600 (CST)
From: "Alan Sieg WB5RMG" <wb5rmg@xxxxxxx.xxx>
Subject: [amsat-bb] Re: ARISS antennae
To: amsat-bb@xxxxx.xxx
Message-ID: <1876.198.119.224.78.1230660142.squirrel@xxx.xxxxxxx.xxx>
Content-Type: text/plain;charset=iso-8859-1
>> they are considered to be on the earth-facing surface...
> Actually, an "earth facing" antenna can be confusing to some.
Roger that. A narrow-beamwidth directly under ISS would not serve well.
I was (in)effectively paraphrasing the cited reports, that observe that the
primary antennas are mounted on the (earth-facing) Nadir side, as opposed
to the (space-facing) Zenith side. For a simple single vertical element,
pointing directly toward earth gives a good view either side, and front/back.
Not so sure what pattern or beamwidth to expect from the patches.
As I read it, both WA1 and WA2 have capability to Tx and Rx at the same time,
but "the space station ham shack will install a dual-band, 2 meter/70 cm radio
and a 70 cm radio that will use the downward/Earth-facing WA1 and WA2
antennas"
I would suspect that the cross-band setup uses one to Rx, and the other to Tx.
Which might yield a 'deaf-zone' for each, but not in the same place.
Possibly if we dig around the ARISS info, more detail has been provided.
(I see that KA3HDO has just posted some new links...)
Thanks /;^)
--
<- Licensed in 1976, WB5RMG = Alan Sieg * AMSAT#20554 ->
<- http://www.somenet.net * http://wb5rmg.somenet.net ->
<- http://www.linkedin.com/in/alansieg * My 'Day Job' ->
------------------------------
Message: 3
Date: Tue, 30 Dec 2008 12:07:28 -0600 (CST)
From: "Alan Sieg WB5RMG" <wb5rmg@xxxxxxx.xxx>
Subject: [amsat-bb] Re: LOTW and Logging Info
To: amsat-bb@xxxxx.xxx
Message-ID: <1891.198.119.224.78.1230660448.squirrel@xxx.xxxxxxx.xxx>
Content-Type: text/plain;charset=iso-8859-1
KK0SD said:
> If anyone is interested it is possible (fairly easy in hind sight) to make
> AC Log from N3FJP properly report OSCAR contacts in LOTW automatically.
I'm currently using ACLog with eQSL, and only needed to change two of the
"Other" fields, to do what I wanted. The ADIF export 'does the right thing'.
The eQSL 'one-shot' method does not pick up these two "Other" fields.
I changed "Other" to "Prop_Mode" and "Other2" to "QSO_Comment"...
In the Prop_Mode field I indicate "SAT",
and manually indicate which satellite and additional comment in the other.
I have not done LOTW, but if it wants ADIF, ACLog should work as above.
> If you have worked me as kk0sd or ks5z via satellite those contacts should
> be in LOTW except for contacts made from my home of the last 2 years. They
> will go in next. After that I will go after my ka0yos logs.
I would not have recognized you as KK0SD, but I do remember you as KA0YOS !!
We worked a time or two on RS10/11 when I was in Tennessee. I have your
card...
Did I ever send you one ? 73 for now /;^)
--
<- Licensed in 1976, WB5RMG = Alan Sieg * AMSAT#20554 ->
<- http://www.somenet.net * http://wb5rmg.somenet.net ->
<- http://www.linkedin.com/in/alansieg * My 'Day Job' ->
------------------------------
Message: 4
Date: Tue, 30 Dec 2008 10:25:01 -0800
From: "Ron Miles" <conimicut@xxxxx.xxx>
Subject: [amsat-bb] ISS Repeater
To: amsat-bb@xxxxx.xxx
Message-ID:
<ca0df3900812301025hf401e1bse9cbb9363265e2dc@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Called the ISS L / V repeater two separate passes this morning...15:39UTC
and 17:14UTC. At LOS on the first pass I heard a call ending in "HH". At the
end of the second pass I heard Jeff, K7WIN. It was too late for a contact
with Jeff by then, I was already below my tree line.
These were 20 and 40 degree passes for me. 40W out to the antenna seems to
hold the repeater. Sorry to report no contacts again today. Hope the L / V
mode stays up a few more days. I would like to claim victory in this mode.
73,
Ron n6paa
------------------------------
Message: 5
Date: Tue, 30 Dec 2008 13:32:25 -0500
From: Joe Krepps <occupant@xxxxxxx.xxx>
Subject: [amsat-bb] Re: lindenblad observations
To: amsat-bb@xxxxx.xxx
Message-ID: <495A6939.8090100@xxxxxxx.xxx>
Content-Type: text/plain; charset=us-ascii; format=flowed
Thank you, Frank! :)
I do have an Arrow antenna but I never seem to have time to wave it in
the air. However, I do spend a lot of time driving so an antenna
solution which could be used mobile is appealing.
I've seen one or two other Lindenblad designs but the AA2TX
"EZ-Lindenblad" looks strong enough for mobile use.
73!
Joe
WB3CFN
FM20
------------------------------
Message: 6
Date: Tue, 30 Dec 2008 11:57:09 -0800
From: "Greg D." <ko6th_greg@xxxxxxx.xxx>
Subject: [amsat-bb] Re: ISS Repeater
To: <conimicut@xxxxx.xxx>, <amsat-bb@xxxxx.xxx>
Message-ID: <BLU133-W51CEBDBCE1F881EFFE4DAAA9E70@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
Hi Ron,
I heard you on the ISS repeater this morning, around 17:20z I think. Nice
signal received on my Kenwood D7 HT with a Diamond RH-77B antenna attached.
The second station I heard (I assume it was Jeff, but don't remember the call
sign) was actually a bit stronger, but I expect it was just the position of
the Station relative to me (CM98).
I was out on a walk with my wife, so couldn't try to get back to you.
Greg KO6TH
> Date: Tue, 30 Dec 2008 10:25:01 -0800
> From: conimicut@xxxxx.xxx
> To: amsat-bb@xxxxx.xxx
> Subject: [amsat-bb] ISS Repeater
>
> Called the ISS L / V repeater two separate passes this morning...15:39UTC
> and 17:14UTC. At LOS on the first pass I heard a call ending in "HH". At the
> end of the second pass I heard Jeff, K7WIN. It was too late for a contact
> with Jeff by then, I was already below my tree line.
> These were 20 and 40 degree passes for me. 40W out to the antenna seems to
> hold the repeater. Sorry to report no contacts again today. Hope the L / V
> mode stays up a few more days. I would like to claim victory in this mode.
> 73,
> Ron n6paa
> _______________________________________________
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122008
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End of AMSAT-BB Digest, Vol 3, Issue 683
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