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CX2SA > SATDIG 29.01.09 22:21l 403 Lines 13043 Bytes #999 (0) @ WW
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Sent: 090129/2016Z @:CX2SA.LAV.URY.SA #:4910 [Minas] FBB7.00e $:4910-CX2SA
From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
Today's Topics:
1. AO-51 SSTV (Dave Aitch)
2. AO-7 Fans (Allen Vinegar)
3. Re: AO-51 SSTV (WB2LLP)
4. Re: AO-51 SSTV (Nigel Gunn G8IFF/W8IFF)
5. Re: AO-7 Fans (Dave Guimont)
6. K3SZH 8000 QSO's on AO-07 (dcowden@xx.xx.xxxx
7. AO-51 s-band (Kelby Davis)
8. Delfi-C3 / DO-64 status update January 29th 2009 10:00 UTC
(Wouter Jan Ubbels)
9. STARS Earth picture success (Mineo Wakita)
10. Re: AO-51 s-band (Alan P. Biddle)
11. homebrew Loop yagi (w7lrd@xxxxxxx.xxxx
12. Re: homebrew Loop yagi (w7lrd@xxxxxxx.xxxx
----------------------------------------------------------------------
Message: 1
Date: Wed, 28 Jan 2009 20:43:40 -0000
From: "Dave Aitch" <dave@xxxxx.xxx>
Subject: [amsat-bb] AO-51 SSTV
To: "'AMSAT-BB'" <amsat-bb@xxxxx.xxx>
Message-ID: <001101c98189$1b306970$51913c50$@xxx>
Content-Type: text/plain; charset="us-ascii"
A great opportunity for an across-the-pond SSTV
QSO just went by and I was all alone for the
entire pass. What a shame.
Dave. G1OCN
IO80SM
AMSAT UK 5766
------------------------------
Message: 2
Date: Wed, 28 Jan 2009 17:07:23 -0500
From: "Allen Vinegar" <tokens@xxxxxxx.xxx>
Subject: [amsat-bb] AO-7 Fans
To: <amsat-bb@xxxxx.xxx>
Message-ID: <4DFF603B955E4C07AD4CDEB445A520A1@xxxxx>
Content-Type: text/plain; charset="iso-8859-1"
Here is a memento of the launch of AO-7. I guess some of you probably got one
of these back at the original event. I found it recently on eBay.
http://home.insightbb.com/avinegar/AO7.jpg
------------------------------
Message: 3
Date: Wed, 28 Jan 2009 17:38:27 -0500
From: WB2LLP <wb2llp@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: AO-51 SSTV
To: Dave Aitch <dave@xxxxx.xxx>, "'AMSAT-BB'" <amsat-bb@xxxxx.xxx>
Message-ID: <E28F8A2A2FA142DC8B0DA1266D808ADA@xxxx>
Content-Type: text/plain; format=flowed; charset=iso-8859-1;
reply-type=original
Dave,
The North East portion of the US had bigger problems than working a
satellite today. Those that were not at work, were busy taking care of
their property. We were enjoying a significant snowfall which was followed
by what our forecasters call a Wintry Mix which consists of more snow,
freezing rain and rain.
It is a delightful game trying to figure out when and how often to clean up
hoping that you do not end up with a sheet of ice on your driveway and
walks. If you wait too long you have the fun of removing several inches of
soaking wet snow which is a bit heavy.
We must speak to the chaps that control AO-51 and ask them not to let this
happen again.
73 de WB2LLP Gene
------------------------------
Message: 4
Date: Wed, 28 Jan 2009 22:47:30 +0000
From: Nigel Gunn G8IFF/W8IFF <nigel@xxxxx.xxx>
Subject: [amsat-bb] Re: AO-51 SSTV
To: WB2LLP <wb2llp@xxxxxxxxx.xxx>
Cc: 'AMSAT-BB' <amsat-bb@xxxxx.xxx>
Message-ID: <4980E082.1040406@xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Let nature take it's course.
The springtime sun melts the snow and ice which then runs down the drains.
WB2LLP wrote:
> It is a delightful game trying to figure out when and how often to clean up
> hoping that you do not end up with a sheet of ice on your driveway and
> walks. If you wait too long you have the fun of removing several inches of
> soaking wet snow which is a bit heavy.
------------------------------
Message: 5
Date: Wed, 28 Jan 2009 15:09:25 -0800
From: Dave Guimont <dguimon1@xxx.xx.xxx>
Subject: [amsat-bb] Re: AO-7 Fans
To: "Allen Vinegar" <tokens@xxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID:
<20090128230928.YGGS22141.cdptpa-
omta03.mail.rr.com@xxxxxxxxxxxx.xxx.xx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
>Here is a memento of the launch of AO-7. I guess some of you
>probably got one of these back at the original event. I found it
>recently on eBay.
>
>http://home.insightbb.com/avinegar/AO7.jpg
Tnx, Allen, got one hanging on my wall with a few other "trophy" cards!!
Am mighty proud of them all, and of the few early users that made them
happen!!
73, Dave, WB6LLO
dguimon1@xxx.xx.xxx
Disagree: I learn....
Pulling for P3E...
------------------------------
Message: 6
Date: Wed, 28 Jan 2009 19:36:47 -0500
From: <dcowden@xx.xx.xxx>
Subject: [amsat-bb] K3SZH 8000 QSO's on AO-07
To: amsat-bb@xxxxx.xxx
Cc: k3szh@xxxxxxx.xxx
Message-ID: <20090129003647.HXZTN.53166.root@xxxxxxxxxxxxxxxx>
Content-Type: text/plain; charset=utf-8
Congratulations Joe Well deserved.
How did you get free time from house duties to "play"
Good Job. I'm happy to have there for a few Contacts.
73, Don
N8DDK
------------------------------
Message: 7
Date: Wed, 28 Jan 2009 16:12:33 -0700
From: Kelby Davis <Kelby.Davis@xxx.xxx.xxx>
Subject: [amsat-bb] AO-51 s-band
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Message-ID:
<17535E710274BD498AC9319579FA4CDA04456C8D53@xxxxx.xxxxx.xxx.xxx>
Content-Type: text/plain; charset="us-ascii"
When AO-51 is configured for 2401.2 Mhz down FM repeater as it is currently,
(Jan 26 - Feb 1)
Is this the same configuration used for 38.4 kbps digital modes on 2401.2 Mhz?
I've been trying to listen on 2401.2 but I'm not hearing any voice
transmissions.
It appears that I might be seeing some packet bursts. Is this correct?
Will someone please educate me?
Thanks
K Davis AD7VO
------------------------------
Message: 8
Date: Thu, 29 Jan 2009 11:42:48 +0100
From: Wouter Jan Ubbels <wjubbels@xxxxx.xxx>
Subject: [amsat-bb] Delfi-C3 / DO-64 status update January 29th 2009
10:00 UTC
To: "Amsat-Bb@xxxxx. Org" <amsat-bb@xxxxx.xxx>
Message-ID:
<af4c9b1b0901290242y5f47f544l3803b64b384b472d@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Hi all,
please find a status update of the Delfi-C3 / DO-64 satellite below.
1. Following our earlier reports about the transponder issue, we sadly
have had to conclude that the linear transponder is not operational
anymore. Delfi-C3 / DO-64 has been in basic mode (a mode in which only
housekeeping mode is transmitted) for a number of months in order to
investigate this issue.
Following our extensive tests, we have decided to switch the satellite
back to science mode, which from a mission point of view is the most
useful mode since it yields valuable science data about the Thin Film
Solar Cell payload and the Autonomous Wireless Sun Sensor payload.
2. Today during the 09:33 UTC pass we have successfully commanded the
satellite to science mode using the primary downlink at 145.870MHz,
1200Bd AX.25 BPSK and stored this mode in the on board data base.
Subsequent database dumps indicated that the new settings have been
stored successfully.
This mode is recognized by the higher rate of telemetry frames on the
downlink, 3 payload frames are transmitted followed by 1 housekeeping
frame.
Note that the satellite boots in this mode on 145.870MHz whenever she
comes out of eclipse (no battery on board). It is possible, that the
satellite decides to use the 145.930 MHz backup downlink. If you hear
Delfi-C3 / DO-64 on this frequency, your reports are highly
appreciated!
3. Contrary to basic mode, in which the downlink is on continuously,
downlink drop outs are likely to occur in science mode. Therefore, it
is possible that the satellite is not heard, and due to the orbit, the
chances that the downlink is still on over VK / ZL are slim, sorry to
all of you down under! However, if you hear the satellite, your
reports are very much appreciated! We regularly post the satellite
status on the Oscar status page at http://oscar.dcarr.org/ and
encourage you to do so as well.
4. Telemetry can be received using the RASCAL program, which is
available at http://www.delfic3.nl/rascal At this moment, the total
amount of frames has exceeded the 500000 mark, more precisely 504364
(which amounts to approx. 72.14 MB), a truly magnificent number.
Thanks once again to all of you receiving and submitting telemetry!
When in science mode, the IV curves of the Thin Film Solar Cell
payload can be viewed by clicking "options" --> "show IV curves".
Best 73 on behalf of the Delfi-C3 / DO-64 team,
Wouter Jan Ubbels PE4WJ
------------------------------
Message: 9
Date: Thu, 29 Jan 2009 21:06:49 +0900
From: Mineo Wakita <ei7m-wkt@xxxxxxxxx.xx.xx>
Subject: [amsat-bb] STARS Earth picture success
To: amsat-bb@xxxxx.xxx
Message-ID: <9DC9820A105516ei7m-wkt@xxxxxxxxx.xx.xx>
Content-Type: text/plain; charset=us-ascii
STARS Earth picture success
http://www.ne.jp/asahi/hamradio/je9pel/starspic.htm
JE9PEL, Mineo Wakita
------------------------------
Message: 10
Date: Thu, 29 Jan 2009 07:35:27 -0600
From: "Alan P. Biddle" <APBIDDLE@xxxxxx.xxx>
Subject: [amsat-bb] Re: AO-51 s-band
To: "'Kelby Davis'" <Kelby.Davis@xxx.xxx.xxx>, <amsat-bb@xxxxx.xxx>
Message-ID: <F3DCDA96810F4D7495AFF246C61AD575@xxxxxx>
Content-Type: text/plain; charset="us-ascii"
Kelby,
Hearing nothing on the mode-S downlink is actually pretty typical. There
are only a handful of stations who operate there. I am not complaining,
since I am one of those stations, but it would be nice to have some company.
Excellent mode. You should be getting a very strong carrier, even if nobody
is on. With a modest gain antenna you will get an exceptionally strong
signal.
This is not a packet configuration, though there is always a chance that
somebody will decide to try a digital or other mode on an otherwise unused
pass. Additionally 9k6 and up does not really have "packet bursts" unlike
1200 baud. It sounds more like while noise, and you sometimes get things
which can sound like that on the downlink briefly.
Alan
WA4SCA
------------------------------
Message: 11
Date: Thu, 29 Jan 2009 18:25:56 +0000
From: w7lrd@xxxxxxx.xxx
Subject: [amsat-bb] homebrew Loop yagi
To: PNWVHFS@xxxxxxxxxxxx.xxx (NW VHF), AMSAT-BB@xxxxx.xxx (AMSAT-BB)
Message-ID:
<012920091825.15952.4981F4B40008AF2400003E5022155754740B9D04C999@xxxxxxx
.xxx>
Content-Type: text/plain
Hello
I am looking for some brain power from anyone who has built loop yagi's. I am
getting my information from The ARRL Antenna book 20th edition. The book
says follow exactly, however. It calls for alluminum elements 0.0325 thick, I
have copper 0.025 thick. It calls for 3/4" alluminum boom I have 3/4 copper
and some 1/2" stainless steel channel. The feed to the driven element is UT-
14, I have a short piece with a SMA already attached, will connecting the SMA
to a SMA-N adapter be acceptable? I have seen the pretty pictures of
Directive Systems antennas http://www.directivesystems.com/loopyagi.htm
Same idea only different parts. Are these things pretty "forgiving" or are
the components critical? Also comparing the loop to a quagi the loop widths
are 1/4" wide and the quagi used #18 wire, why? My intent is satellites
and/or terrestial. Thanks for the bandwidth.
73 Bob W7LRD
CN87
AMSAT 28498
--
"if this were easy, everyone would be doing it"
------------------------------
Message: 12
Date: Thu, 29 Jan 2009 18:33:00 +0000
From: w7lrd@xxxxxxx.xxx
Subject: [amsat-bb] Re: homebrew Loop yagi
To: PNWVHFS@xxxxxxxxxxxx.xxx (NW VHF), AMSAT-BB@xxxxx.xxx (AMSAT-BB)
Message-ID:
<012920091833.23386.4981F65C000D878C00005B5A22155754740B9D04C999@xxxxxxx
.xxx>
Content-Type: text/plain
I should have mentioned this is for 1.2Ghz and the feed to the DE is UT-141
Bob
--
"if this were easy, everyone would be doing it"
-------------- Original message --------------
From: w7lrd@xxxxxxx.xxx
> Hello
> I am looking for some brain power from anyone who has built loop yagi's. I
am
> getting my information from The ARRL Antenna book 20th edition. The book
says
> follow exactly, however. It calls for alluminum elements 0.0325 thick, I
have
> copper 0.025 thick. It calls for 3/4" alluminum boom I have 3/4 copper and
some
> 1/2" stainless steel channel. The feed to the driven element is UT-14, I
have a
> short piece with a SMA already attached, will connecting the SMA to a SMA-N
> adapter be acceptable? I have seen the pretty pictures of Directive Systems
> antennas http://www.directivesystems.com/loopyagi.htm
> Same idea only different parts. Are these things pretty "forgiving" or are
the
> components critical? Also comparing the loop to a quagi the loop widths are
> 1/4" wide and the quagi used #18 wire, why? My intent is satellites and/or
> terrestial. Thanks for the bandwidth.
> 73 Bob W7LRD
> CN87
> AMSAT 28498
>
> --
> "if this were easy, everyone would be doing it"
> _______________________________________________
> 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!
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End of AMSAT-BB Digest, Vol 4, Issue 48
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