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CX2SA > SATDIG 17.05.08 01:12l 485 Lines 16903 Bytes #999 (0) @ WW
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From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
Today's Topics:
1. Satellite Demos at Dayton (Keith D. Pugh)
2. Re: Organised Chaos. (Michael Tondee)
3. AO-40 S band (WB2LLP)
4. Re: AO-40 S band (John B. Stephensen)
5. Re: AO-40 S band (Greg D.)
6. Updated of analysis software of SEEDS (Yuta Araki)
7. Re: AO-40 S band (Anthony Monteiro)
8. trade-secret, patented, copyrighted nature of the AMBE voice
codec used in the D*STAR (Rob Rousseau)
9. Re: AO-40 S band (Andrew Glasbrenner)
10. AO-40 DUH (WB2LLP)
11. AO7 DX N. Europe (w7lrd(AT)comcast.net)
12. Re: AO7 DX N. Europe (Dave Aitch)
----------------------------------------------------------------------
Message: 1
Date: Thu, 15 May 2008 16:24:41 -0500
From: "Keith D. Pugh" <w5iu(AT)swbell.net>
Subject: [amsat-bb] Satellite Demos at Dayton
To: <amsat-bb(AT)AMSAT.Org>
Message-ID: <001b01c8b6d2$16aad160$44007420$(AT)net>
Content-Type: text/plain; charset="us-ascii"
The Satellite Demo Station at the Dayton Hamvention will use the callsign,
W5IU, and will attempt to follow the following schedule:
WinAos QTH: -84.3/39.8 T#: 11093 Sat.: 5 [Standard]
----------------------------------------------------------
Day Object AOS (L) LOS Period maxEl AZ
----------------------------------------------------------
16.05.2008 AO-51 08:55 09:09 14 58 017 - 185
16.05.2008 AO-07 09:18 09:39 21 63 019 - 188
16.05.2008 AO-51 10:34 10:46 12 17 353 - 237
16.05.2008 VO-52 10:48 10:59 11 15 034 - 155
16.05.2008 AO-07 11:11 11:31 20 31 008 - 236
16.05.2008 VO-52 12:24 12:36 12 45 005 - 208
16.05.2008 AO-27 14:32 14:44 12 15 116 - 003
16.05.2008 AO-16 16:06 16:18 12 19 122 - 003
16.05.2008 AO-27 16:10 16:24 14 66 172 - 345
16.05.2008 AO-16 17:44 17:58 14 53 179 - 342
WinAos QTH: -84.3/39.8 T#: 11094 Sat.: 5 [Standard]
----------------------------------------------------------
Day Object AOS (L) LOS Period maxEl AZ
----------------------------------------------------------
17.05.2008 AO-51 09:54 10:08 14 37 003 - 216
17.05.2008 AO-07 10:11 10:32 21 67 014 - 210
17.05.2008 VO-52 11:07 11:18 11 23 028 - 165
17.05.2008 AO-07 12:05 12:22 17 15 003 - 258
17.05.2008 VO-52 12:43 12:54 11 28 359 - 220
17.05.2008 AO-16 15:37 15:47 10 10 104 - 008
17.05.2008 AO-27 15:41 15:56 15 63 156 - 350
WinAos QTH: -84.3/39.8 T#: 11095 Sat.: 5 [Standard]
----------------------------------------------------------
Day Object AOS (L) LOS Period maxEl AZ
----------------------------------------------------------
18.05.2008 AO-07 09:11 09:32 21 57 021 - 185
18.05.2008 AO-51 09:15 09:29 14 87 012 - 195
18.05.2008 AO-51 10:55 11:05 10 11 349 - 250
18.05.2008 AO-07 11:04 11:24 20 33 008 - 232
18.05.2008 VO-52 11:25 11:37 12 37 022 - 175
All times are in EDT
73 - Keith, W5IU
------------------------------
Message: 2
Date: Thu, 15 May 2008 19:33:11 -0400
From: "Michael Tondee" <mat_62(AT)netcommander.com>
Subject: [amsat-bb] Re: Organised Chaos.
To: "Edward Cole" <kl7uw(AT)acsalaska.net>
Cc: amsat-bb(AT)amsat.org
Message-ID: <00e601c8b6e4$0a7ad540$6500a8c0(AT)w4hij1>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
Ed,
You're partially right in my case, I don't have first hand experience on an
HEO but I wouldn't call myself clueless about what it's like. I've spent
many a happy evening researching in books and surfing the web reading about
the glory days of AO-40 and some info on AO-13 as well. I'm slowly but
surely trying to accquire everything I will need for P3E. It's a slow
process on my budget but I'm getting there. No one could possibly want to
see it launched and to succeed anymore than I do.
All that being said, I like the FM sats, I think they are fun and that they
are a challenge. I don't like seeing them being criticized here and really
don't understand why it has to happen. I've joked about this before but
sooner or later, there will be a model of AO-51 available, if some people
don't like FM sats, they should get one and throw darts at it! ;-) lol
As far as the next HEO surviving I will say this about AO-40, I wasn't a
member of AMSAT back then but from all my research and reading I've come to
the conclusion that AMSAT made a serious error in judgement in building such
a big complex satellite and "putting all their eggs in one basket" so to
speak. Seems like we are still reeling somewhat from it's loss, even to this
day. The money and time might have been better spent on a couple of smaller
less complex HEO birds or one HEO and one LEO along the lines os of AO-7. Of
course hindsight is 20-20 isn't it?
73,
Michael, W4HIJ
----- Original Message -----
From: "Edward Cole" <kl7uw(AT)acsalaska.net>
To: "Dave Guimont" <dguimon1(AT)san.rr.com>; <la2qaa(AT)amsat.org>
Cc: <amsat-bb(AT)amsat.org>
Sent: Wednesday, May 14, 2008 10:05 PM
Subject: [amsat-bb] Re: Organised Chaos.
> Dave,
>
> It is obvious that there is a whole generation of Leo-FM sat users
> that are clueless of what ham radio on a Heo linear-tranponder is
> like. Although it must be harder than a cell phone since so many
> cannot seem to figure out how to operate on the Leos...I would say it
> is not "much" harder than using the local repeater.
>
> I offer an analogy: Compare all the ham radio contacts that are done
> on HF with the same number of folks trying to talk thru a single FM
> repeater! First it cannot be done; second the attempt results in
> total chaos with "big fish" eating the little fishes!
>
> I am waiting for the next Heo and hoping it survives better than the last
> one.
>
> 73 Ed - KL7UW
>
------------------------------
Message: 3
Date: Thu, 15 May 2008 22:16:29 -0400
From: WB2LLP <wb2llp(AT)optonline.net>
Subject: [amsat-bb] AO-40 S band
To: AMSAT -BB <AMSAT-BB(AT)AMSAT.ORG>
Message-ID: <002a01c8b6fa$da1a3910$6401a8c0(AT)gene>
Content-Type: text/plain; charset=iso-8859-1
I was going to set up to receive AO-51 on VS when it occurred to me that I
need the 144 band as the receiver for the S band down-converter. Then I
remembered that I used to have QSOs on AO-40 with the same gear that I still
have, but I do not remember and can not find any notes as what band we used
for the uplink.
Will someone with a better memory/set of notes please remind me what band we
used for the uplink?
TNX es 73 de WB2LLP
------------------------------
Message: 4
Date: Fri, 16 May 2008 05:23:17 -0000
From: "John B. Stephensen" <kd6ozh(AT)comcast.net>
Subject: [amsat-bb] Re: AO-40 S band
To: "WB2LLP" <wb2llp(AT)optonline.net>, "AMSAT -BB" <AMSAT-BB(AT)amsat.org>
Message-ID: <000a01c8b714$f45f14c0$0201a8c0(AT)your6bvpxyztoq>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
Most people used mode US on AO-40.
73,
John
KD6OZH
----- Original Message -----
From: "WB2LLP" <wb2llp(AT)optonline.net>
To: "AMSAT -BB" <AMSAT-BB(AT)amsat.org>
Sent: Friday, May 16, 2008 02:16 UTC
Subject: [amsat-bb] AO-40 S band
>I was going to set up to receive AO-51 on VS when it occurred to me that I
>need the 144 band as the receiver for the S band down-converter. Then I
>remembered that I used to have QSOs on AO-40 with the same gear that I
>still have, but I do not remember and can not find any notes as what band
>we used for the uplink.
>
> Will someone with a better memory/set of notes please remind me what band
> we used for the uplink?
>
> TNX es 73 de WB2LLP
> _______________________________________________
> Sent via AMSAT-BB(AT)amsat.org. 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, 15 May 2008 23:05:17 -0700
From: "Greg D." <ko6th_greg(AT)hotmail.com>
Subject: [amsat-bb] Re: AO-40 S band
To: WB2LLP <wb2llp(AT)optonline.net>, AMSAT -BB <amsat-bb(AT)amsat.org>
Message-ID: <BLU133-W481E04BD055A09A784E920A9C80(AT)phx.gbl>
Content-Type: text/plain; charset="iso-8859-1"
My notes say that the main uplink was on 70cm. Not knowing which way AO-40
was going to be configured, I built my station 13cm downlink with a 300 mhz
IF, so I could use either 2m or 70cm up. Turns out that was a good decision.
If you have a wide-band receiver, perhaps you could modify your S-band
converter to use a different frequency? I set my LO to 2.1 ghz, if I recall.
Greg KO6TH.
----------------------------------------
> Date: Thu, 15 May 2008 22:16:29 -0400
> From: wb2llp(AT)optonline.net
> To: AMSAT-BB(AT)AMSAT.Org
> Subject: [amsat-bb] AO-40 S band
>
> I was going to set up to receive AO-51 on VS when it occurred to me that I
need the 144 band as the receiver for the S band down-converter. Then I
remembered that I used to have QSOs on AO-40 with the same gear that I still
have, but I do not remember and can not find any notes as what band we used
for the uplink.
>
> Will someone with a better memory/set of notes please remind me what band
we used for the uplink?
>
> TNX es 73 de WB2LLP
> _______________________________________________
> Sent via AMSAT-BB(AT)amsat.org. 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
_________________________________________________________________
Stay in touch when you're away with Windows Live Messenger.
http://www.windowslive.com/messenger/overview.html?ocid=TXT_TAGLM_WL_Refresh_m
essenger_052008
------------------------------
Message: 6
Date: Fri, 16 May 2008 16:49:49 +0900
From: "Yuta Araki" <araki(AT)forth.aero.cst.nihon-u.ac.jp>
Subject: [amsat-bb] Updated of analysis software of SEEDS
To: <AMSAT-BB(AT)AMSAT.Org>
Message-ID: <84081F5C81A541E694BD14016EF66D3C(AT)c5fd1bx>
Content-Type: text/plain; charset="us-ascii"
Dear All,
I'm Yuta Araki at Nihon University (JQ1YGV).
First of all, thank you very much for much kind cooperation! We are grateful
to you all.
I'd like to inform you of the update of analysis software of SEEDS.
A new version of the analysis software is "Downlink Code for Distribution
Ver.2.0.2".
Please download analysis software from the following website
http://cubesat.aero.cst.nihon-u.ac.jp/english/download_e.html
Please continue your favors toward the reception cooperation about SEEDS in
the future.
Thanks again!
Best Regards,
Yuta
_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
Nakamura&Miyazaki Lab., Department of Aerospace Engineering,
Graduate School of Science and Technology, Nihon University
Yuta Araki
E-mail: araki(AT)forth.aero.cst.nihon-u.ac.jp
_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
------------------------------
Message: 7
Date: Fri, 16 May 2008 07:43:10 -0400
From: Anthony Monteiro <aa2tx(AT)comcast.net>
Subject: [amsat-bb] Re: AO-40 S band
To: WB2LLP <wb2llp(AT)optonline.net>, <AMSAT-BB(AT)amsat.org>
Cc: aa2tx(AT)amsat.org
Message-ID: <20080516114310.85GBhA600EAMf(AT)mailbox5.ucsd.edu>
Content-Type: text/plain; charset="us-ascii"; format=flowed
At 10:16 PM 5/15/2008, WB2LLP wrote:
>I was going to set up to receive AO-51 on VS when it occurred to me
>that I need the 144 band as the receiver for the S band
>down-converter. Then I remembered that I used to have QSOs on AO-40
>with the same gear that I still have, but I do not remember and can
>not find any notes as what band we used for the uplink.
>
>Will someone with a better memory/set of notes please remind me
>what band we used for the uplink?
>
>TNX es 73 de WB2LLP
Hi Gene,
You may want to build the mode V/S adapter from
the Sept/Oct 2005 AMSAT Journal (also CQ-DL 2-2007.)
This is an easy to build, $5 device that converts
mode S downconverters to 6 meters. Then you can use
the 2m-band for your uplink.
If you need a copy of the article, email me.
73,
Tony AA2TX
------------------------------
Message: 8
Date: Fri, 16 May 2008 09:30:25 -0400
From: Rob Rousseau <ki4bke(AT)nc.rr.com>
Subject: [amsat-bb] trade-secret, patented, copyrighted nature of the
AMBE voice codec used in the D*STAR
To: amsat-bb(AT)amsat.org
Message-ID: <482D8C71.4020502(AT)nc.rr.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Not sure if you folks have seen this recently. It has a reference to
AMSAT in the draft:
http://codec2.org/
and the referring article:
http://technocrat.net/d/2008/5/14/41380
Also, regarding the LEOs, I really enjoyed using them and only found
them to be busy on weekends and at night, but I wouldn't say they were
hard to use. Plus, for someone who doesn't have the expensive HF gear,
it was my only way to get into exchanging QSL cards using N2SPI's
homebrewed antennas that I got from AMSAT's website.
73,
-Rob
------------------------------
Message: 9
Date: Fri, 16 May 2008 10:12:49 -0400
From: "Andrew Glasbrenner" <glasbrenner(AT)mindspring.com>
Subject: [amsat-bb] Re: AO-40 S band
To: "WB2LLP" <wb2llp(AT)optonline.net>, "AMSAT -BB" <AMSAT-BB(AT)amsat.org>
Message-ID: <B41C6696596B4E1D984532A66109F8D6(AT)Andrewlaptop>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
We only run V/S or L/S on AO-51 out of concern over damaging the SQRX
receiver if it were listening on UHF when a UHF transmitter came up. This
could happen with a battery watchdog event, or a software crash. Since the
doppler shift on the VHF uplink is low enough that you do not need to tune
on FM, if you have any sort of second VHF transmitter you could use it for
the uplink. Even a 5 watt HT will do fine, especially since we now use an
alternate frequency on V/S.
73, Drew KO4MA
AMSAT-NA VP Operations
----- Original Message -----
From: "WB2LLP" <wb2llp(AT)optonline.net>
To: "AMSAT -BB" <AMSAT-BB(AT)amsat.org>
Sent: Thursday, May 15, 2008 10:16 PM
Subject: [amsat-bb] AO-40 S band
>I was going to set up to receive AO-51 on VS when it occurred to me that I
>need the 144 band as the receiver for the S band down-converter. Then I
>remembered that I used to have QSOs on AO-40 with the same gear that I
>still have, but I do not remember and can not find any notes as what band
>we used for the uplink.
>
> Will someone with a better memory/set of notes please remind me what band
> we used for the uplink?
>
> TNX es 73 de WB2LLP
> _______________________________________________
> Sent via AMSAT-BB(AT)amsat.org. 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: Fri, 16 May 2008 11:52:19 -0400
From: WB2LLP <wb2llp(AT)optonline.net>
Subject: [amsat-bb] AO-40 DUH
To: AMSAT -BB <AMSAT-BB(AT)AMSAT.ORG>
Message-ID: <006b01c8b76c$d28bd6f0$6401a8c0(AT)gene>
Content-Type: text/plain; charset=iso-8859-1
Thank you for the responses. The answer should have been obvious since I was
using my IC-821 to work through AO-40. To make it worse, I have a couple of
other rigs which have the 2M band. The next time we have a V/S configuration
I shall try to overcome my senior moment.
Gene WB2LLP
------------------------------
Message: 11
Date: Fri, 16 May 2008 17:03:37 +0000
From: w7lrd(AT)comcast.net
Subject: [amsat-bb] AO7 DX N. Europe
To: AMSAT-BB(AT)amsat.org (AMSAT-BB)
Cc: la2qaa(AT)amsat.org
Message-ID:
<051620081703.24904.482DBE690009013D0000614822155688840B9D04C999(AT)comc
ast.net>
Content-Type: text/plain
Hello
At 1704Z, 1857Z, 2050Z and 2239Z there is a mutual footprint from Northern
Europe to Seattle Washington (CN87wk), on AO-7 albeit a short one. I will be
found on 145.958. Lets make it happen.
73 Bob W7LRD
Seattle
--
"if this were easy, everyone would be doing it"
------------------------------
Message: 12
Date: Fri, 16 May 2008 19:37:59 +0100
From: "Dave Aitch" <dave(AT)g1ocn.com>
Subject: [amsat-bb] Re: AO7 DX N. Europe
To: <w7lrd(AT)comcast.net>
Cc: amsat-bb(AT)amsat.org
Message-ID: <009601c8b783$f7b210e0$cd00a8c0(AT)pc5>
Content-Type: text/plain; charset="iso-8859-1"
Hi Bob,
What mode will AO-07 be in for the later passes.
Happy to give it a go from IO80SM, Portland, Dorset.
73, Dave.
------------------------------
_______________________________________________
Sent via amsat-bb(AT)amsat.org. 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 247
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