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CX2SA > SATDIG 22.11.08 17:59l 726 Lines 20852 Bytes #999 (0) @ WW
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R:081116/0643Z @:F4ERG.FPOC.FRA.EU #:2668 [3096] FBB7.01.35 alpha $:49420_CX2SA
R:081115/2237z @:F4BWT.FCEN.FRA.EU $:49420_CX2SA
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From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
Today's Topics:
1. need keps for ao-0 (Eric Fort)
2. Re: need keps for ao-0 (Nigel Gunn G8IFF/W8IFF)
3. CO-56 not quite dead yet. (David Giles)
4. Re: need keps for ao-0 (Alan P. Biddle)
5. Re: need keps for ao-0 (Paul Williamson)
6. Re: need keps for ao-0 (i8cvs)
7. Received Pix from AO-51?? (John Marranca, Jr)
8. Re: Question re WA5VJB "Cheap Yagiis" (James Duffey)
9. ao-51 sstv or v/s mode now ?? (Robert Coppock)
10. Re: Question re WA5VJB "Cheap Yagiis" (Curt Nixon)
11. Re: Question re WA5VJB "Cheap Yagiis" (James Duffey)
12. ao-51 v/s qrv (Robert Coppock)
13. SendThisFile File Notification (files@xxxxxxxxxxxx.xxxx
14. nothing heard on SSTV AO-51 (John Price)
15. never mind the question (John Price)
16. Re: nothing heard on SSTV AO-51 (John Marranca, Jr)
----------------------------------------------------------------------
Message: 1
Date: Fri, 14 Nov 2008 14:05:13 -0800
From: "Eric Fort" <eric.fort@xxxxx.xxx>
Subject: [amsat-bb] need keps for ao-0
To: AMSAT-BB <amsat-bb@xxxxx.xxx>
Message-ID:
<2ad2af430811141405m5e0605c6la0b96cf837c95b5d@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Where can I get keps for the moon (ao-0) and keep them updated? how much do
they change over time?
Eric
AF6EP
------------------------------
Message: 2
Date: Fri, 14 Nov 2008 22:42:49 +0000
From: Nigel Gunn G8IFF/W8IFF <nigel@xxxxx.xxx>
Subject: [amsat-bb] Re: need keps for ao-0
To: eric.fort@xxxxx.xxx
Cc: AMSAT-BB <amsat-bb@xxxxx.xxx>
Message-ID: <491DFEE9.1040101@xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Most prediction programs already track the moon although the moonbounce guys
use specialist moon tracking programs.
There are no keps available. The chosen program just knows how to do it.
Eric Fort wrote:
> Where can I get keps for the moon (ao-0) and keep them updated? how much do
> they change over time?
>
> 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
>
--
<><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
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: 3
Date: Sat, 15 Nov 2008 09:18:51 +1030
From: David Giles <vk5dg@xxxx.xxx.xx>
Subject: [amsat-bb] CO-56 not quite dead yet.
To: amsat-bb@xxxxx.xxx
Message-ID: <491E0053.1040701@xxxx.xxx.xx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Hello All,
Managed to hear CO-56 yesterday. Signal was weaker than before and 6kHz
below where my software said it should be.
73 de David VK5DG
------------------------------
Message: 4
Date: Fri, 14 Nov 2008 16:55:28 -0600
From: "Alan P. Biddle" <APBIDDLE@xxxxxx.xxx>
Subject: [amsat-bb] Re: need keps for ao-0
To: "'AMSAT-BB'" <amsat-bb@xxxxx.xxx>
Message-ID: <72A9C4C5BF1741E89725F7FA53B695A1@xxxxxx>
Content-Type: text/plain; charset="us-ascii"
Eric,
The moon (and sun!) are sufficiently massive that you can't make the same
simplifying approximations. Many programs such as ITrack, SATPC32, Nova,
Trak-SM, etc, all have the capability to generate the required data using
different algorithms which do not require updating. At one time I saw a
program which would generate pseudo-Keps which were good for a few days, but
I am not certain if that still exists somewhere.
Alan
WA4SCA
------------------------------
Message: 5
Date: Fri, 14 Nov 2008 15:28:31 -0800
From: Paul Williamson <kb5mu@xxxxx.xxx>
Subject: [amsat-bb] Re: need keps for ao-0
To: eric.fort@xxxxx.xxx
Cc: AMSAT-BB <amsat-bb@xxxxx.xxx>
Message-ID: <a06230911c543b8c7e496@xxxx.xxx.x.xxx>
Content-Type: text/plain; charset="us-ascii"
At 2:05 PM -0800 11/14/08, Eric Fort wrote:
>Where can I get keps for the moon (ao-0) and keep them updated? how much do
>they change over time?
http://www.amsat.org/amsat/ftp/software/PC/tracking/moonkeps.zip
That's a DOS program (which probably runs fine under Windows too) that can
compute a set of pseudo-Keplerian elements for the Moon, which are good for a
limited time (a month).
The document file in that archive also includes elements for the Sun, which
can be modeled as an Earth-orbiting satellite. These elements are good for
many years, at least for predicting pointing angles. Some tracking programs,
however, may reject these elements due to range checking on the values.
73 -Paul
kb5mu@xxxxx.xxx
------------------------------
Message: 6
Date: Sat, 15 Nov 2008 00:42:53 +0100
From: "i8cvs" <domenico.i8cvs@xxx.xx>
Subject: [amsat-bb] Re: need keps for ao-0
To: <eric.fort@xxxxx.xxx>, "AMSAT-BB" <amsat-bb@xxxxx.xxx>
Message-ID: <000901c946b2$b8ac6a80$0201a8c0@xxx.xx>
Content-Type: text/plain; charset="iso-8859-1"
Hi Eric AF6EP
The very popular software InstantTrack can be used for the Sun and Moon
and don't need Keplerian Elements
73" de
i8CVS Domenico
----- Original Message -----
From: "Eric Fort" <eric.fort@xxxxx.xxx>
To: "AMSAT-BB" <amsat-bb@xxxxx.xxx>
Sent: Friday, November 14, 2008 11:05 PM
Subject: [amsat-bb] need keps for ao-0
> Where can I get keps for the moon (ao-0) and keep them updated? how much
do
> they change over time?
>
> 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: 7
Date: Fri, 14 Nov 2008 19:07:50 -0500
From: "John Marranca, Jr" <KB2HSH@xxxxx.xxx>
Subject: [amsat-bb] Received Pix from AO-51??
To: amsat-bb <amsat-bb@xxxxx.xxx>
Message-ID:
<8edcdb130811141607k130b0cc1u82d3585ddd340137@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Good Evening, everyone.
Is there anyone that has saved and possibly posted any received images from
the 2330z pass of AO-51? I am curious to see how I did...it was close to a
90 degree pass for me...VERY loud signals, indeed.
Thanks!
John KB2HSH
--
_______________________________
John Marranca, Jr
PBX Technician/Shop Steward CWA Local 1122
BN Systems, Inc
Orchard Park, NY
(716)972-2006
------------------------------
Message: 8
Date: Fri, 14 Nov 2008 17:52:45 -0700
From: James Duffey <JamesDuffey@xxxxxxx.xxx>
Subject: [amsat-bb] Re: Question re WA5VJB "Cheap Yagiis"
To: Curt Nixon <cptcurt@xxxxx.xxx>
Cc: AMSAT-BB@xxxxx.xxx
Message-ID: <7CD52C9E-D83E-4777-9D35-564FB34C6C25@xxxxxxx.xxx>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
Curt - I have built lots of there. I use the 1/2 inch as the inside
dimension.
It is best to measure the spacing as cumulative from the rear, not
incremental. That eliminates cumulative errors. ANd you don't have to
subtract. Use a tape measure, or you can buy a 5 or 6 ft steel rule
pretty cheaply at Lowes or HOme Depot.
Here is the referencce I use for LEO antennas:
< http://www.wa5vjb.com/references/Cheap%20Antennas-LEOs.pdf >
Here is what I get for the spacings when I subtract: 5.75, 6.25, 6.5,
6.5, 7.25. I think that this is reasonable.
But don't subtract measure it all from a single reference point, the
reflector. The antennas work great. - Duffey
On Nov 14, 2008, at 11:47 AM, Curt Nixon wrote:
> Good afternoon:
>
> Hi have liked the way the WA5VJB Kent Britain 144Mhz cheap yagi worked
> so decided to build one for 435.
>
> Couple of questions:
>
> For the driven element "hairpin" or J, it shows 1/2" dimension for the
> spacing--knowing this might be critical on 435, is that INSIDE spacing
> or OUTSIDE spacing??
>
> Also, I noticed what appears to be unusual element spacing for the
> last
> directors in both the 435 and 432 versions. The spacing increments
> seem
> to follow an increasing spacing trend but then the last couple are
> different. ie spacing goes ...6.25, 6.5, 6.5, 7.25, 7.25, 7.0,
> then 7.5.
>
> Is this a result of the computer design for easily progressive
> build, or
> perhaps some error in the dimensions posted on-line??
>
> Thanks,
>
> Curt
>
> KU8L
>
>
> _______________________________________________
> 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
--
KK6MC
James Duffey
Cedar Crest NM
------------------------------
Message: 9
Date: Sat, 15 Nov 2008 01:39:20 GMT
From: "Robert Coppock" <robertinorbit@xxxxx.xxx>
Subject: [amsat-bb] ao-51 sstv or v/s mode now ??
To: amsat-bb@xxxxx.xxx
Message-ID: <BAY112-DAV2B217996A686FB009F06AA0110@xxx.xxx>
Content-Type: text/plain; charset="utf-8"
HI ,,,, ,,
i just heard nothing on ao51 2401.2 downliink, the 0113 utc pass going thru
the middle of the usa. is the bird in sstv mode ? or v/s mode or off
???
i hope my k5gna d/c didnt go bad !
thank you to all,
73, Robert k-f-0-g cm97
------------------------------
Message: 10
Date: Fri, 14 Nov 2008 21:51:26 -0500
From: Curt Nixon <cptcurt@xxxxx.xxx>
Subject: [amsat-bb] Re: Question re WA5VJB "Cheap Yagiis"
To: James Duffey <JamesDuffey@xxxxxxx.xxx>
Cc: AMSAT-BB@xxxxx.xxx
Message-ID: <491E392E.5090204@xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Thanks James.
Yes that is the way I layed them out--using a long rule. I'm an old
gage designer so understand cumulative error stackup.
Those are the same differences I have, but when the chart is used for
the next two elements for a ten element unit, the spacings just look odd.
I'm going to build it as specified. It is that way on several pages so
probably OK.
Now I just thave to get a 300.00 antenna analyzer to figure out if the
match is good on the $10.00 antenna!! ;)
Curt
James Duffey wrote:
> Curt - I have built lots of there. I use the 1/2 inch as the inside
> dimension.
>
> It is best to measure the spacing as cumulative from the rear, not
> incremental. That eliminates cumulative errors. ANd you don't have to
> subtract. Use a tape measure, or you can buy a 5 or 6 ft steel rule
> pretty cheaply at Lowes or HOme Depot.
>
> Here is the referencce I use for LEO antennas:
>
> < http://www.wa5vjb.com/references/Cheap%20Antennas-LEOs.pdf >
>
> Here is what I get for the spacings when I subtract: 5.75, 6.25, 6.5,
> 6.5, 7.25. I think that this is reasonable.
>
> But don't subtract measure it all from a single reference point, the
> reflector. The antennas work great. - Duffey
> On Nov 14, 2008, at 11:47 AM, Curt Nixon wrote:
>
>> Good afternoon:
>>
>> Hi have liked the way the WA5VJB Kent Britain 144Mhz cheap yagi worked
>> so decided to build one for 435.
>>
>> Couple of questions:
>>
>> For the driven element "hairpin" or J, it shows 1/2" dimension for the
>> spacing--knowing this might be critical on 435, is that INSIDE spacing
>> or OUTSIDE spacing??
>>
>> Also, I noticed what appears to be unusual element spacing for the last
>> directors in both the 435 and 432 versions. The spacing increments seem
>> to follow an increasing spacing trend but then the last couple are
>> different. ie spacing goes ...6.25, 6.5, 6.5, 7.25, 7.25, 7.0, then
>> 7.5.
>>
>> Is this a result of the computer design for easily progressive build, or
>> perhaps some error in the dimensions posted on-line??
>>
>> Thanks,
>>
>> Curt
>>
>> KU8L
>>
>>
>> _______________________________________________
>> 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
>
> --
> KK6MC
> James Duffey
> Cedar Crest NM
>
>
>
>
>
>
------------------------------
Message: 11
Date: Fri, 14 Nov 2008 19:58:32 -0700
From: James Duffey <JamesDuffey@xxxxxxx.xxx>
Subject: [amsat-bb] Re: Question re WA5VJB "Cheap Yagiis"
To: Curt Nixon <cptcurt@xxxxx.xxx>
Cc: AMSAT-BB@xxxxx.xxx
Message-ID: <F260B8FB-CB0C-4CDE-8DE7-17AA6A96016B@xxxxxxx.xxx>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
Well Curt, I have the 10 element 432 version up and running FB. I
don't have a 432 MHz analyzer, but these antennas are pretty much
build and play. I wouldn't worry about tweaking them too much. - Duffey
On Nov 14, 2008, at 7:51 PM, Curt Nixon wrote:
> Thanks James.
>
> Yes that is the way I layed them out--using a long rule. I'm an old
> gage designer so understand cumulative error stackup.
>
> Those are the same differences I have, but when the chart is used
> for the next two elements for a ten element unit, the spacings just
> look odd.
>
> I'm going to build it as specified. It is that way on several pages
> so probably OK.
>
>
>
> Now I just thave to get a 300.00 antenna analyzer to figure out if
> the match is good on the $10.00 antenna!! ;)
>
> Curt
>
>
> James Duffey wrote:
>> Curt - I have built lots of there. I use the 1/2 inch as the inside
>> dimension.
>>
>> It is best to measure the spacing as cumulative from the rear, not
>> incremental. That eliminates cumulative errors. ANd you don't have
>> to subtract. Use a tape measure, or you can buy a 5 or 6 ft steel
>> rule pretty cheaply at Lowes or HOme Depot.
>>
>> Here is the referencce I use for LEO antennas:
>>
>> < http://www.wa5vjb.com/references/Cheap%20Antennas-LEOs.pdf >
>>
>> Here is what I get for the spacings when I subtract: 5.75, 6.25,
>> 6.5, 6.5, 7.25. I think that this is reasonable.
>>
>> But don't subtract measure it all from a single reference point,
>> the reflector. The antennas work great. - Duffey
>> On Nov 14, 2008, at 11:47 AM, Curt Nixon wrote:
>>
>>> Good afternoon:
>>>
>>> Hi have liked the way the WA5VJB Kent Britain 144Mhz cheap yagi
>>> worked
>>> so decided to build one for 435.
>>>
>>> Couple of questions:
>>>
>>> For the driven element "hairpin" or J, it shows 1/2" dimension for
>>> the
>>> spacing--knowing this might be critical on 435, is that INSIDE
>>> spacing
>>> or OUTSIDE spacing??
>>>
>>> Also, I noticed what appears to be unusual element spacing for the
>>> last
>>> directors in both the 435 and 432 versions. The spacing
>>> increments seem
>>> to follow an increasing spacing trend but then the last couple are
>>> different. ie spacing goes ...6.25, 6.5, 6.5, 7.25, 7.25, 7.0,
>>> then 7.5.
>>>
>>> Is this a result of the computer design for easily progressive
>>> build, or
>>> perhaps some error in the dimensions posted on-line??
>>>
>>> Thanks,
>>>
>>> Curt
>>>
>>> KU8L
>>>
>>>
>>> _______________________________________________
>>> 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
>>
>> --
>> KK6MC
>> James Duffey
>> Cedar Crest NM
>>
>>
>>
>>
>>
>>
>
--
KK6MC
James Duffey
Cedar Crest NM
------------------------------
Message: 12
Date: Sat, 15 Nov 2008 03:12:47 GMT
From: "Robert Coppock" <robertinorbit@xxxxx.xxx>
Subject: [amsat-bb] ao-51 v/s qrv
To: amsat-bb@xxxxx.xxx
Message-ID: <BAY112-DAV7AA0A5014F924A957E5AFA0110@xxx.xxx>
Content-Type: text/plain; charset="utf-8"
HI ,,,, ,,
PACIFIC OCEAN PASS AT 0250 UTC WORKED FINE FOR V/S MODE, BUT NOBODY WAS
HOME.......cq cq cq
its been said b4, those k5gna d/c are great, best 'bang for the buck'
THANKS, AND THANKS FOR THE FUN MACHINES. KEEP ON SPACE TRUCKIN'
73, ROBERT k-f-0-g cm97
------------------------------
Message: 13
Date: Fri, 14 Nov 2008 23:22:06 -0600 (CST)
From: files@xxxxxxxxxxxx.xxx
Subject: [amsat-bb] SendThisFile File Notification
To: amsat-bb@xxxxx.xxx
Message-ID:
<23150567.23451226726526465.JavaMail.root@xxxx.xxxxxxxxxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
SendThisFile File Notification
n4csitwo@xxxxxxxxx.xxx has sent you a file that will EXPIRE in 3 DAYS.
photo of STS-126 launch from roof of my home in East Orlando about 45 miles
west of the pad. Dave, AA4KN
Click the following link(s) to retrieve your file(s):
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Message: 14
Date: Sat, 15 Nov 2008 09:42:06 -0500
From: "John Price" <n4qwf1@xxxxx.xxx>
Subject: [amsat-bb] nothing heard on SSTV AO-51
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Message-ID:
<8d1b8e80811150642g5320958ambdea785b848efd7d@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
I have been trying the SSTV on AO-51. Sure have not had any success. I
have not heard anyone else or myself. Is anyone else having any
success? I have checked everything possible here and all seems fine. I
can send and receive images to myself so I know it works. Can anyone
verify there operation is working? thanks << John
--
N4QWF Amateur Radio Operator
AO-7,AO-27,SO-50,AO-51,VO-52,ISS
Internet N4QWF@xxxxx.xxx
Echolink nodes #110903 -L #388463
Formerly KC4AHW VK3FEZ
Amsat Member #27845
DXCC #33,478
VUCC SAT #135
WAS SAT #296
51 on AO-51 #13
LON -79.256 LAT 37.459 Grid FM07il
>From the Foothills of the Blueridge
*Life should not be a journey to the grave with the intention of
arriving safely in a pretty and well preserved body, but rather to
skid in broadside, thoroughly used up, totally worn out, and loudly
proclaiming - "WOW, What a ride!"
------------------------------
Message: 15
Date: Sat, 15 Nov 2008 09:48:47 -0500
From: "John Price" <n4qwf1@xxxxx.xxx>
Subject: [amsat-bb] never mind the question
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Message-ID:
<8d1b8e80811150648y7d97be26q93d35f9e7206871f@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
You would think that after 16 years of fooling with satellite I would
know the first thing to check is the tracking program time setting.
Guess old age is catching up. Sorry for the trouble. 73's << John
--
N4QWF Amateur Radio Operator
AO-7,AO-27,SO-50,AO-51,VO-52,ISS
Internet N4QWF@xxxxx.xxx
Echolink nodes #110903 -L #388463
Formerly KC4AHW VK3FEZ
Amsat Member #27845
DXCC #33,478
VUCC SAT #135
WAS SAT #296
51 on AO-51 #13
LON -79.256 LAT 37.459 Grid FM07il
>From the Foothills of the Blueridge
*Life should not be a journey to the grave with the intention of
arriving safely in a pretty and well preserved body, but rather to
skid in broadside, thoroughly used up, totally worn out, and loudly
proclaiming - "WOW, What a ride!"
------------------------------
Message: 16
Date: Sat, 15 Nov 2008 10:40:00 -0500
From: "John Marranca, Jr" <KB2HSH@xxxxx.xxx>
Subject: [amsat-bb] Re: nothing heard on SSTV AO-51
To: amsat-bb <amsat-bb@xxxxx.xxx>
Message-ID:
<8edcdb130811150740p32ede97es638f6b22198d4609@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
John, et al:
I had that same issue the other day. One PC said that the ISS was directly
overhead...the other said it wasn't. I found out that it wasn't AFTER
checking with ARISS.NET and seeing Australian stations hitting the APRS
transponder.
Old age does happen. And I'm 36!
John KB2HSH
--
_______________________________
John Marranca, Jr
PBX Technician/Shop Steward CWA Local 1122
BN Systems, Inc
Orchard Park, NY
(716)972-2006
------------------------------
_______________________________________________
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 591
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