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CX2SA > SATDIG 19.04.14 21:05l 151 Lines 4602 Bytes #999 (0) @ WW
BID : AMSATBB9142
Read: GUEST
Subj: AMSAT-BB-digest V9 142
Path: IZ3LSV<IK2XDE<IR2UBX<IW2OHX<IQ2LB<IQ5KG<IR1UAW<IK1NHL<CX2SA
Sent: 140419/1903Z @:CX2SA.SAL.URY.SA #:5368 [Salto] FBB7.00e $:AMSATBB9142
From: CX2SA@CX2SA.SAL.URY.SA
To : SATDIG@WW
Today's Topics:
1. Space - X Launch Success (GW1FKY@xxx.xxxx
2. Further To Today's SpaceX Launch (B J)
3. FUNcube telemetry performance? (Phil Karn)
4. Re: Any latest news on the Cubesats that fly with SpaceX
CRS-3 mission (Clint Bradford)
5. Re: FUNcube telemetry performance? (Joe Fitzgerald)
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Message: 1
Date: Fri, 18 Apr 2014 16:03:42 -0400 (EDT)
From: GW1FKY@xxx.xxx
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Space - X Launch Success
Message-ID: <c2bbb.10684e8a.4082df1e@xxx.xxx>
Content-Type: text/plain; charset="US-ASCII"
Hi all,
Not seen any postings yet on the Amsat BBS - But the good news from
various sources is that despite
a threat of bad weather -The Space -X launch to the ISS went ahead
successfully today - Friday 18th April.
Reports also state that the expected arrival at the ISS is planned for
arrival on " Easter Sunday".
Glad that after the delays's the launch finally went ahead especially in
view of the payloads.
Ken Eaton
GW1FKY
Amsat-UK
Amsat NA
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Message: 2
Date: Fri, 18 Apr 2014 23:25:41 +0000
From: B J <va6bmj@xxxxx.xxx>
To: amsat-bb <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Further To Today's SpaceX Launch
Message-ID:
<CAP7QzkM23dvKiX-1JP3TmJHLour_hP_ekw8uyP-dOua3SuaZ7g@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
http://innerspace.net/spacex/nasa-spacex-press-conference-reveals-new-details-
on-todays-launch/
http://www.newspacejournal.com/2014/04/18/falcon-9-launches-dragon-outcome-of-
reusability-experiment-unclear/
73s
Bernhard VA6BMJ @ DO33FL
------------------------------
Message: 3
Date: Sat, 19 Apr 2014 02:33:39 -0700
From: Phil Karn <karn@xxxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] FUNcube telemetry performance?
Message-ID: <535242F3.4030605@xxxxxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
I haven't done anything with AO-73, but I understand it's transmitting
the FEC format I originally designed for AO-40.
How well is it working? What fraction of the frames are successfully
decoded? How bad is the fading? I designed my format specifically for
the spin fading on AO-40, and if the fading due to the tumbling of a
cubesat is too slow my format won't be able to fix it.
Phil
------------------------------
Message: 4
Date: Sat, 19 Apr 2014 09:17:22 -0700
From: Clint Bradford <clintbradford@xxx.xxx>
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Any latest news on the Cubesats that fly with
SpaceX CRS-3 mission
Message-ID: <77F5B7C7-E2CB-4FBD-B0B1-990EF54FF7C5@xxx.xxx>
Content-Type: text/plain; CHARSET=US-ASCII
AMSAT-UK is on top of this 108-satellite payload!
(That's five CubeSats ... one with 104 Sprite satellites!)
http://www.amsat-uk.org
Clint K6LCS
http://www.hamradioprogramming.com
------------------------------
Message: 5
Date: Sat, 19 Apr 2014 13:24:04 -0400
From: Joe Fitzgerald <jfitzgerald@xxxx.xxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: FUNcube telemetry performance?
Message-ID: <5352B134.8040005@xxxx.xxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Phil,
That is an interesting question. I have fooled with a simple 1/4 wave
vertical, and observe very bad fading with a period of 10's of seconds
(5 to 10 times longer than individual frames). It seems to my ear that
signals need to be pretty strong in order to decode on AMSAT-UK's
"dashboard" software.
-Joe KM1P
On 4/19/2014 5:33 AM, Phil Karn wrote:
> I haven't done anything with AO-73, but I understand it's transmitting
> the FEC format I originally designed for AO-40.
>
> How well is it working? What fraction of the frames are successfully
> decoded? How bad is the fading? I designed my format specifically for
> the spin fading on AO-40, and if the fading due to the tumbling of a
> cubesat is too slow my format won't be able to fix it.
>
> Phil
>
> _______________________________________________
> 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 9, Issue 142
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