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CX2SA > SATDIG 18.11.08 00:28l 475 Lines 14907 Bytes #999 (0) @ WW
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Subj: AMSAT-BB-digest V3 595
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Sent: 081117/2213Z @:CX2SA.LAV.URY.SA #:50107 [Minas] FBB7.00e $:50107_CX2SA
From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
Today's Topics:
1. India on the moon (Luc Leblanc)
2. ao-51 mode (Eric Fort)
3. Ft. Wayne Hamfest update (Doug Kuitula)
4. Re: ao-51 mode (Gould Smith)
5. Invitation for students to take part in the GENSO project.
(David Johnson)
6. Re: Some doppler observations/questions (mlunday@xx.xx.xxxx
7. Re: ao-51 mode (Doug Kuitula)
8. ISS/STS-126 Position? (Scott Schmautz)
9. Re: ISS/STS-126 Position? (Nigel Gunn G8IFF/W8IFF)
10. IC-910H/ Packet (Peter)
11. iss/ ST126 keps (Jim Danehy)
12. Re: IC-910H/ Packet (Andrew Glasbrenner)
13. Re: ISS/STS-126 Position? (Alan Sieg WB5RMG)
----------------------------------------------------------------------
Message: 1
Date: Sun, 16 Nov 2008 15:47:03 -0500
From: Luc Leblanc <lucleblanc6@xxxxxxxxx.xx>
Subject: [amsat-bb] India on the moon
To: amsat-bb@xxxxx.xxx
Cc: eu-amsat@xxxxxxxxxxx.xxx
Message-ID: <49204077.30820.1C3AA19@xxxxxxxxxxx.xxxxxxxxx.xx>
Content-Type: text/plain; charset=US-ASCII
Congratulations a new moon club member
http://www.isro.org/pressrelease/Nov14_2008.htm
"-"
Luc Leblanc VE2DWE
Skype VE2DWE
www.qsl.net/ve2dwe
WAC BASIC CW PHONE SATELLITE
------------------------------
Message: 2
Date: Sun, 16 Nov 2008 14:19:28 -0800
From: "Eric Fort" <eric.fort@xxxxx.xxx>
Subject: [amsat-bb] ao-51 mode
To: AMSAT-BB <amsat-bb@xxxxx.xxx>
Message-ID:
<2ad2af430811161419t2db6509ew23a4fa6d3958e979@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
will ao-51 channel A in mode uv at 01:28 utc per schedule? Does a mode
change require command team action?
Eric
Af6ep
------------------------------
Message: 3
Date: Sun, 16 Nov 2008 17:26:24 -0500
From: "Doug Kuitula" <ka8qcu@xxxxx.xxx>
Subject: [amsat-bb] Ft. Wayne Hamfest update
To: <amsat-bb@xxxxx.xxx>
Message-ID: <001401c9483a$5e4a4b00$5ec964d0@xxx>
Content-Type: text/plain; charset="iso-8859-1"
Hi all,
Just got back from the Ft. Wayne, Ind. Hamfest and wanted to thank Gerd,
WB8IFM, for his AMSAT forum. I also wanted to say thanks to Carl, K9LA, for
his talk about amateur radio and amateur astronomy. That makes me wonder how
many folks on this BB use their satellite gear for any sort of radio
astronomy. I would think that if you're working any EME, the same setup may
possibly be used for other ventures.
73, de Doug KA8QCU
------------------------------
Message: 4
Date: Sun, 16 Nov 2008 18:08:07 -0500
From: "Gould Smith" <gouldsmi@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: ao-51 mode
To: <eric.fort@xxxxx.xxx>, "AMSAT-BB" <amsat-bb@xxxxx.xxx>
Message-ID: <9B45706C0E9F42879739D877FD17778E@xxxxxxxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
Hi Eric,
I will be changing the mode on AO-51 tonight (16 Nov) during the 2348Z pass
here in the eastern US.
TXB to V/U FM repeater
TXA to L/U digital BB
73,
Gould, WA4SXM
----- Original Message -----
From: "Eric Fort" <eric.fort@xxxxx.xxx>
To: "AMSAT-BB" <amsat-bb@xxxxx.xxx>
Sent: Sunday, November 16, 2008 5:19 PM
Subject: [amsat-bb] ao-51 mode
> will ao-51 channel A in mode uv at 01:28 utc per schedule? Does a mode
> change require command team action?
>
> Eric
> Af6ep
> _______________________________________________
> 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: Sun, 16 Nov 2008 23:12:01 +0000
From: David Johnson <dave@xxxxx.xx.xx>
Subject: [amsat-bb] Invitation for students to take part in the GENSO
project.
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Message-ID: <4920A8C1.6050402@xxxxx.xx.xx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Hi,
The Groundstation Educational Network for Spacecraft Operations (GENSO)
is a system is aimed at CubeSat operators and Amateur Satellite users to
enable more effective use of the devices by providing better wordwide
opportunities for telemetry recovery.
The ESA Education Office would like to invite students to apply to take
part in the development of the system.
More details can be found at http://www.genso.org and
http://www.esa.int/esaED/SEMSOC5KXMF_index_0.html
The project is being sponsored by member agencies of ISEB.
AMSAT-UK is participating in the project by providing equipment
recommemdations, setting up reference ground stations, software for
predictions and hardware driver.
73
Dave, G4DPZ
AMSAT-UK 1267
AMSAT-NA LM-2268
GENSO Project Software Engineering Mentor
------------------------------
Message: 6
Date: Sun, 16 Nov 2008 18:31:25 -0500
From: <mlunday@xx.xx.xxx>
Subject: [amsat-bb] Re: Some doppler observations/questions
To: Alan Cresswell <alancresswell@xxxx.xx.xx>
Cc: amsat-bb@xxxxx.xxx
Message-ID:
<31029537.231861226878286038.JavaMail.root@xxxxxxxxxxxxxxxx>
Content-Type: text/plain; charset=utf-8
Thanks to all who replied!
For HRD, how would I enter this offset?
---- Alan Cresswell <alancresswell@xxxx.xx.xx> wrote:
> Hi Mark,
>
> Almost all the linear sats have some offset due to variations in frequency
> of the internal oscillators etc. In the case of AO-07 the offset is
> temperature related and varies slowly depending on the amount of sunlight
> etc. (AO-07 at the moment is about 4.5kHz) The technique I use to determine
> the offset at any time is to set my receiver to the centre of the satellite
> downlink passband (+/- Doppler) and then adjust my transmitter frequency to
> hear myself correctly on the downlink. The difference between my actual
> uplink (+/- Doppler) and the nominal centre of the uplink passband is the
> offset. I save this value and use it built into my Doppler correction until
> any change warrants a re-calculation.
>
> Alan
> ZL2BX
>
>
>
> -----Original Message-----
> From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
> Behalf Of Mark Lunday, WD4ELG
> Sent: Sunday, 16 November 2008 04:58
> To: amsat-bb@xxxxx.xxx
> Subject: [amsat-bb] Some doppler observations/questions
>
> I am using HRD with Sat tracker module (thanks, Simon!)
>
> I notice that for the non-FM birds I am working (AO7, FO29, VO52) the
> Doppler is never quite exact. Or I guess I should say there seems to be a
> constant *offset* that needs to be included in the Doppler calc. Tonight on
> AO7 mode B pass, my actual downlink frequency seemed to be about 4 kHz lower
> than what it should be according to the Doppler. As the bird passed by, I
> followed the "one true rule" and only adjusted the higher freq (uplink in
> this case). It was consistently about 4 kHz lower.
>
> On FO29 pass, there seemed to be about a 2 kHz offset. When the bird passed
> overhead, the Doppler "flipped" quickly and I had to find my signal again.
>
> How can I consistently determine this offset so I can include it in with the
> Doppler correction? Or is it on a case-by-case basis?
>
> PS Thanks, Frank, K9CIS, for the nice CW rag chew on FO29 tonight.
>
> Mark Lunday
> WD4ELG
> wd4elg@xxxx.xxx
> http://wd4elg.net
>
> _______________________________________________
> 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: 7
Date: Sun, 16 Nov 2008 18:50:17 -0500
From: "Doug Kuitula" <ka8qcu@xxxxx.xxx>
Subject: [amsat-bb] Re: ao-51 mode
To: <eric.fort@xxxxx.xxx>, "AMSAT-BB" <amsat-bb@xxxxx.xxx>
Message-ID: <004d01c94846$15c34880$5ec964d0@xxx>
Content-Type: text/plain; charset="iso-8859-1"
Eric,
The best spot to check for AO-51 as well as other satellite modes is at the
AMSAT website:
www.amsat.org
It will give you info as well as links to most of the birds.
73 de Doug KA8QCU
----- Original Message -----
From: "Eric Fort" <eric.fort@xxxxx.xxx>
To: "AMSAT-BB" <amsat-bb@xxxxx.xxx>
Sent: Sunday, November 16, 2008 17:19
Subject: [amsat-bb] ao-51 mode
> will ao-51 channel A in mode uv at 01:28 utc per schedule? Does a mode
> change require command team action?
>
> Eric
> Af6ep
> _______________________________________________
> 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: Mon, 17 Nov 2008 07:41:22 -0500
From: "Scott Schmautz" <wb2uzr@xxxxx.xxx>
Subject: [amsat-bb] ISS/STS-126 Position?
To: amsat-bb@xxxxx.xxx
Message-ID:
<11b740b70811170441j5da795f3nb2e5277eb91f7fc4@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Hi All:
Do the keps for the shuttle become in accurate at some point during a
docking mission? My tracking programs show STS-126 on the other side of the
world from the ISS now, even though they are docked. They were showing them
approaching each other yesterday up to a point, then they began to diverge.
I notice they are very far apart this AM with updated keps. The ISS position
is the correct one, and it's not that big of a deal, just curious as to why
this happened?
Scott/WB2UZR
PS Had a nice view of the launch the other night from the backyard!
--
Those are my principles, and if you don't like them... well, I have others.
Groucho Marx
------------------------------
Message: 9
Date: Mon, 17 Nov 2008 13:01:37 +0000
From: Nigel Gunn G8IFF/W8IFF <nigel@xxxxx.xxx>
Subject: [amsat-bb] Re: ISS/STS-126 Position?
To: Scott Schmautz <wb2uzr@xxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <49216B31.6090307@xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
the keps are wrong the moment anything starts it's engine.
Scott Schmautz wrote:
> Hi All:
> Do the keps for the shuttle become in accurate at some point during a
> docking mission? My tracking programs show STS-126 on the other side of the
> world from the ISS now, even though they are docked. They were showing them
> approaching each other yesterday up to a point, then they began to diverge.
> I notice they are very far apart this AM with updated keps. The ISS position
> is the correct one, and it's not that big of a deal, just curious as to why
> this happened?
>
> Scott/WB2UZR
>
> PS Had a nice view of the launch the other night from the backyard!
>
>
>
--
<><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
Nigel A. Gunn. G8IFF W8IFF (was KC8NHF)
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: 10
Date: Mon, 17 Nov 2008 10:09:17 -0500
From: Peter <roi@xxxxxxxxx.xxx>
Subject: [amsat-bb] IC-910H/ Packet
To: AMSAT-BB@xxxxx.xxx
Message-ID: <004701c948c6$ac9f1100$6901a8c0@xxxxx>
Content-Type: text/plain; charset=Windows-1252
Hi All,
I have an Icom IC-910H, and would like to operate 4800 and 9600 bps; I
looked into the Kantronics KPC-9612, great TNC but very pricey! Has anyone
set up packet for the abovementioned baud using a cheaper alternative, thank
you.
73,
Pete, WB2OQQ
------------------------------
Message: 11
Date: Mon, 17 Nov 2008 10:24:05 -0500
From: "Jim Danehy" <jdanehy@xxxxx.xx.xxx>
Subject: [amsat-bb] iss/ ST126 keps
To: <amsat-bb@xxxxx.xxx>
Message-ID: <53267ACD09264450B5E2F4A165F65436@xxxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
I have to disagree that the keps change when they start the engine . . . they
change when the object moves off the ground
Jim W9VNE
------------------------------
Message: 12
Date: Mon, 17 Nov 2008 10:28:31 -0500
From: "Andrew Glasbrenner" <glasbrenner@xxxxxxxxxx.xxx>
Subject: [amsat-bb] Re: IC-910H/ Packet
To: "Peter" <roi@xxxxxxxxx.xxx>, <AMSAT-BB@xxxxx.xxx>
Message-ID: <EE51F791200E46B5AEF2D0C8FFF9900E@xxxxxxxxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
Take a look at MixW for a possible soundcard solution.
73, Drew KO4MA
----- Original Message -----
From: "Peter" <roi@xxxxxxxxx.xxx>
To: <AMSAT-BB@xxxxx.xxx>
Sent: Monday, November 17, 2008 10:09 AM
Subject: [amsat-bb] IC-910H/ Packet
> Hi All,
>
> I have an Icom IC-910H, and would like to operate 4800 and 9600 bps; I
> looked into the Kantronics KPC-9612, great TNC but very pricey! Has
> anyone
> set up packet for the abovementioned baud using a cheaper alternative,
> thank
> you.
>
> 73,
> Pete, WB2OQQ
>
> _______________________________________________
> 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: Mon, 17 Nov 2008 09:56:04 -0600 (CST)
From: "Alan Sieg WB5RMG" <wb5rmg@xxxxxxx.xxx>
Subject: [amsat-bb] Re: ISS/STS-126 Position?
To: amsat-bb@xxxxx.xxx
Message-ID: <1742.198.119.224.78.1226937364.squirrel@xxx.xxxxxxx.xxx>
Content-Type: text/plain;charset=iso-8859-1
WB2UZR sed:
> Do the keps for the shuttle become in accurate at some point .. ?
Scott,
The KEPs published before a shuttle launch are typically for orbital
insertion at an altitude and velocity that allows them to 'catch up'
to ISS in it's orbit. Once they match up, the shuttle has to 'slow down'
a bit to keep from passing ISS. They are obviously perfectly matched when
docking occurs. Once they are hard-latched together and properly oriented
along the velocity vector - it becomes stable again and the old ISS KEP set
will begin to drift from accurate as slight adjustments have been made.
Look for a new set of ISS KEPs with a date 'after docking' to have the best
positions during joint ops. Sometimes before the shuttle leaves ISS, they
use 'shuttle power' to increase ISS altitude - again a new KEP is needed.
In general, a KEP data set is only useful, until something changes . . .
Enjoy /;^)
--
<- WB5RMG is Alan Sieg * http://wb5rmg.somenet.net ->
------------------------------
_______________________________________________
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 595
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