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CX2SA > SATDIG 12.12.13 21:15l 630 Lines 17591 Bytes #999 (0) @ WW
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To : SATDIG@WW
Today's Topics:
1. CAPE-2 responds to commands over Brazil (Roland Zurmely)
2. WRAPS - Portable Rotator System (Clint Bradford)
3. Re: WRAPS - Portable Rotator System
(Patrick STODDARD (WD9EWK/VA7EWK))
4. SatPC32 ISS help needed (Ted)
5. Trouble with ISS (Clint Bradford)
6. Details Of ISS Cooling System Problems (B J)
7. CAPE-2 Ground Station Lite Edition Software Major Update!
(Rizwan Merchant)
8. Re: SatPC32 ISS help needed (Alan)
9. D Star net tonight (wa4hfn@xxxxxxx.xxxx
10. WRAPS Portable Satellite Antenna Rotator System Availability
(Alan)
11. Re: General Telemetry Question (PITFALL!) (Zach Leffke)
12. FUNcube WOD available for Download (David A B Johnson)
13. AMSAT Area Coordinators List (Clint Bradford)
----------------------------------------------------------------------
Message: 1
Date: Wed, 11 Dec 2013 12:07:23 -0800 (PST)
From: Roland Zurmely <py4zbz@xxxxx.xxx>
To: AMSAT <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] CAPE-2 responds to commands over Brazil
Message-ID:
<1386792443.56686.YahooMailNeo@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Please see here:
http://www.qsl.net/py4zbz/cape.htm#b
73 de Roland PY4ZBZ
------------------------------
Message: 2
Date: Wed, 11 Dec 2013 12:26:55 -0800 (GMT-08:00)
From: Clint Bradford <clintbrad4d@xxxxxxxxx.xxx>
To: amsat-bb@xxxxx.xxxx amsat-bb@xxxxx.xxx
Subject: [amsat-bb] WRAPS - Portable Rotator System
Message-ID:
<2257813.1386793615430.JavaMail.root@xxxxxxxxxxxxx.xxx.xx.xxxxxxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Nice article by Mark Spencer WA8SME in the January, 2014 issue of QST
on building a portable az-el rotator system for tracking the birds.
Available to ARRL members online at ...
http://www.arrl.org
Clint K6LCS
----------------------------------
Clint Bradford, K6LCS
http://www.clintbradford.com
------------------------------
Message: 3
Date: Wed, 11 Dec 2013 14:00:09 -0700
From: "Patrick STODDARD (WD9EWK/VA7EWK)" <amsat-bb@xxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: WRAPS - Portable Rotator System
Message-ID:
<CAN6TEUfdaGihseFAZj4t2WrKwea-KqAP_hpcYowYV+szH+SJGg@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Hi!
You can also see a video of Mark WA8SME talking about the
WRAPS rotator at the 2013 AMSAT Symposium a few weeks ago
in Houston:
http://www.youtube.com/watch?v=K5Xx6K7tM0Y
73!
Patrick WD9EWK/VA7EWK
http://www.wd9ewk.net/
On Wed, Dec 11, 2013 at 1:26 PM, Clint Bradford
<clintbrad4d@xxxxxxxxx.xxx>wrote:
> Nice article by Mark Spencer WA8SME in the January, 2014 issue of QST
> on building a portable az-el rotator system for tracking the birds.
>
> Available to ARRL members online at ...
>
> http://www.arrl.org
>
> Clint K6LCS
>
> ----------------------------------
> Clint Bradford, K6LCS
> http://www.clintbradford.com
> _______________________________________________
> 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: 4
Date: Wed, 11 Dec 2013 16:31:21 -0800
From: "Ted" <k7trkradio@xxxxxxx.xxx>
To: "'AMSAT-BB'" <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] SatPC32 ISS help needed
Message-ID: <000301cef6d1$7b537d70$71fa7850$@xxx>
Content-Type: text/plain; charset="us-ascii"
HI
I cannot seem to get the ISS portion of the program to operate properly with
FT-847
1. Regular SatPC32 program works as it should
2. In ISS, I have CAT control (trigger on/off with C
3. SAT on the radio is turned off
4. In CAT, I can select the pair for the repeater and the downlink freg
will appear on the radio (VFO A) The initial freq in the program appears but
does not update further
5. Manual says "With the Yaesu FT-847 only use the 'TX' / 'RX'
controls of SatPC32ISSto switch
the radio to TX or RX, rsp.
Otherwise the VFO can't be tuned to the TX frequency
before the radio is switched to
TX."
Program is not displaying TX/RX buttons or controls nor am I
able to key tx with + or - keys on 10 key pad
6. FYI, there are no files shown in any o the aux files. (but, I suspect
that info is pulled from the main program)
I must have something set wrong. Any help appreciated
73,
Ted
K7TRK
------------------------------
Message: 5
Date: Wed, 11 Dec 2013 19:09:37 -0800
From: Clint Bradford <clintbradford@xxx.xxx>
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Trouble with ISS
Message-ID: <F09BEC11-859D-4ACE-824F-02427B7413C4@xxx.xxx>
Content-Type: text/plain; charset=us-ascii
NASA scaled back ops aboard the ISS today, as a cooling pump that circulates
ammonia outside the station to keep equipment cool failed.
NASA is still trying to figure out what exactly failed, and how to repair
it. An EVA is not out of the question.
NASA also stated that the ISS crew was not in danger at this time.
Watch your normal news sources for more details.
Clint
------------------------------
Message: 6
Date: Thu, 12 Dec 2013 03:23:15 +0000
From: B J <va6bmj@xxxxx.xxx>
To: amsat-bb <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Details Of ISS Cooling System Problems
Message-ID:
<CAP7QzkNqUgRFQ8ASg95STbw3-tRDMhoaDzq1AUQcO3BOt8g3Og@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
http://www.nasaspaceflight.com/2013/12/iss-suffers-coolant-loop-issue-spacewal
ks-possible/
73s
Bernhard VA6BMJ @ DO33FL
------------------------------
Message: 7
Date: Wed, 11 Dec 2013 23:11:50 -0600
From: Rizwan Merchant <kommandantdrake@xxxxx.xxx>
To: Amsat - BBs <amsat-bb@xxxxx.xxx>, cubesat@xxxxxxx.xxxx
earthstation@xxxxxxx.xxx
Subject: [amsat-bb] CAPE-2 Ground Station Lite Edition Software Major
Update!
Message-ID:
<CA+zpmXwGxkNwpFpyFfh004PCrRQZU7PAmPhX-_zHU6DcjH2aZA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Greetings All,
Following the great success of our preliminary versions of our CAPE-2
Ground Station Software, I have just released Beta Version 1.1.1, which
opens up the ability to send a new slew of commands.
New Commands are listed below.
- Update Clock
- Set Green Mode
- Send Text to Speech (Voice Options: Perfect Paul, Darth Vader, Big
Bob, Precise Pete, Richochet Randy, Biff, Skip, Alvin the Chipmunk, Robo
Robert, Goliath, and Gretchen)
- Operate Voice Repeater
- Send Emails via CAPE-2
I also made some design changes to the software to make everything much
more user friendly, and secure. I am also adding a few additions to the
Getting Started Guide on the software's
page<http://ulcape.org/cape-2-ground-station-software-lite-edition/>.
Please review the new information before diving in. We are most interested
in results from the email command at current. So please try to send
yourself an email from CAPE-2!
Link: http://ulcape.org/cape-2-ground-station-software-lite-edition/
As always, please direct questions, comments, and concerns to me at
Rizwan@xxxxxxxxxxxxxxxxxxxxxxxxx.xxx
Thanks!
Rizwan Merchant
Notice of Confidentiality
This E-mail is covered by the Electronic Communications Privacy Act, 18
U.S.C. ?? 2510-2521 and is legally privileged. This information is
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or entity named above. If the reader of this message is not the intended
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immediately.
------------------------------
Message: 8
Date: Thu, 12 Dec 2013 06:57:11 -0600
From: Alan <wa4sca@xxxxx.xxx>
To: "'AMSAT-BB'" <amsat-bb@xxxxx.xxx>
Cc: CC <APBIDDLE@xxxxxx.xxx>
Subject: [amsat-bb] Re: SatPC32 ISS help needed
Message-ID: <035F009B861445AC9861D2133C624479@xxxxxx>
Content-Type: text/plain; charset="us-ascii"
Hi Ted,
I do not have an FT-847 handy to test, but here is some information.
The TX/RX buttons have been moved. At the very bottom line, Obs, Config,
etc, hover your mouse. You
will get a message to "Double click to activate/deactivate RX/TX buttons."
They will appear in the
corners of the program.
I have a full complement of help files, including one for SatPC32ISS in the
"?" section.
Are you using Configuration 1? SatPC32ISS picks up most of its information
from SatPC32, and in the
past I found it did not get the correct radio information if I was using
Configuration 2.
Finally, check the frequency update interval, main program. If you have the
FM update set to 100 Hz,
it may take a significant time except during a pass for the Doppler to shift
enough to update.
73s,
Alan
WA4SCA
<-----Original Message-----
<From: amsat-bb-bounces@xxxxx.xxx
<[mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of Ted
<Sent: Wednesday, December 11, 2013 6:31 PM
<To: 'AMSAT-BB'
<Subject: [amsat-bb] SatPC32 ISS help needed
<
<HI
<
<
<
<I cannot seem to get the ISS portion of the program to operate
<properly with
<FT-847
<
<
<
<1. Regular SatPC32 program works as it should
<
<
<
<2. In ISS, I have CAT control (trigger on/off with C
<
<
<
<3. SAT on the radio is turned off
<
<
<
<4. In CAT, I can select the pair for the repeater and the
<downlink freg
<will appear on the radio (VFO A) The initial freq in the
<program appears but
<does not update further
<
<
<
< 5. Manual says "With the Yaesu FT-847 only use the 'TX' / 'RX'
<controls of SatPC32ISSto switch
<
< the radio to TX
<or RX, rsp.
<Otherwise the VFO can't be tuned to the TX frequency
<
< before the radio
<is switched to
<TX."
<
<
<
< Program is not displaying TX/RX buttons or
<controls nor am I
<able to key tx with + or - keys on 10 key pad
<
<
<
<6. FYI, there are no files shown in any o the aux files.
<(but, I suspect
<that info is pulled from the main program)
<
<
<
< I must have something set wrong. Any help appreciated
<
<
<
<73,
<
<
<
<Ted
<
<K7TRK
<
<_______________________________________________
<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: 9
Date: Thu, 12 Dec 2013 14:35:06 +0000 (UTC)
From: wa4hfn@xxxxxxx.xxx
To: AMSAT <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] D Star net tonight
Message-ID:
<1570077207.121813.1386858906953.JavaMail.root@xxxxxxx.xxxxxxxxxxx.xx.xxxx.xxx
xxxx.xxx>
Content-Type: text/plain; charset=utf-8
Hi D STAR owners Amsat net tonight on REF 60B at 0200 utc
Hope you can make it
WA4HFN em55
------------------------------
Message: 10
Date: Thu, 12 Dec 2013 09:51:14 -0600
From: Alan <wa4sca@xxxxx.xxx>
To: "AMSAT-BB" <amsat-bb@xxxxx.xxx>
Cc: CC <APBIDDLE@xxxxxx.xxx>
Subject: [amsat-bb] WRAPS Portable Satellite Antenna Rotator System
Availability
Message-ID: <EFB4032C3A2047C286E20C059AD81533@xxxxxx>
Content-Type: text/plain; charset="us-ascii"
Hi,
There is an excellent article by Mark Spencer, WA8SME beginning on page 43
of the January 2014 QST.
It mentions that a limited number of complete systems will be available
through the AMSAT Store. They
are not yet available, and we do not at present have a firm date when they
will be in stock. Because
of uncertainty of the price and number which will be available, we are not
taking advanced orders.
When we are ready to process orders, we will make the information public.
Please do not call the
AMSAT office.
Alan
------------------------------
Message: 11
Date: Thu, 12 Dec 2013 11:15:27 -0500
From: Zach Leffke <zleffke@xx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: General Telemetry Question (PITFALL!)
Message-ID: <52A9E11F.4010007@xx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Perfect Timing! I'm finishing up details of my Master's Thesis and
using Excel Curve fitting functions for some plotted simulation data
concerning link margin vs elevation.
This Pitfall sub-thread was perfectly timed to help me avoid showing
useless data without enough significant figures.
This listserv rocks, Thanks!!
-Zach, KJ4QLP
On 12/11/2013 2:03 PM, Jim White wrote:
> I have been using the free program CurveExpert for years for plotting
> and calculating calibration data. That is, for deriving the cal
> equation from test data.
> http://www.curveexpert.net/
>
> It lets you choose linear or quadratic and if quadratic you can pick
> how many terms you want. It lets you very quickly experiment with the
> form of the formula so you can see how to get the best fit. It also
> will suggest the highest exponential value for the formula.
>
> I generally build my table of test data, ADC counts vs measured values
> (V, I, temp, etc.), in Excel. Then I copy and paste that table into
> Curve Expert, click one button to make it fit the curve and another to
> show me the coefficients of the formula. I copy and past those back
> into Excel next to the table. Then I add another column to the table
> with values calculated using the formula and coefficients. That's the
> double check to be sure the formula is correct.
>
> Of course you can also see the standard deviation and other 'goodness'
> values in the CurveExpert data. But I find I can tell by just looking
> at the fit plot if I got the data wrong or my measurements weren't
> precise enough.
>
> I find CurveExpert much easier to use and much more flexible than
> Excels' curve fitting functions.
>
> Jim
>
> On 12/11/2013 11:43 AM, Robert Bruninga wrote:
>>> To follow up on Bob's comment. If you send the raw analog sensor
>> data...
>>> Change calibration values if found to be wrong after launch...
>> We did on PCSAT!
>>
>> Caution to Satellite Builders: Be careful when using an EXCEL TREND
>> LINE
>> equation for doing Engineering Unit conversion back to original
>> units. It
>> was a big lesson for us back on PCSAT in 2001.
>>
>> The problem is, generally, EXCEL displays trend line equations in a nice
>> GENERAL human readable form. For example, for our thermistors, the 3rd
>> order trend line equation to convert from telemetry count back to
>> degrees
>> C was displayed by EXCEL as something like this: 2E-7 X^3 - 2E-4
>> X^2 +
>> 1.804E-1 X + 2.379E2.
>>
>> One would think one is getting a very precise to 4-significant digit
>> equation. WRONG. Notice the Cubed and Squared terms (which can be very
>> big at warmer temperatures) are only represented to a single decimal
>> digit(+/- 10%)!!! (2 and 2)...
>>
>> When this trend line is used (as displayed), to give back our
>> temperatures from the incoming COUNT, the temperatures were way off!
>>
>> The key is to make sure the trend line equation is displayed in
>> SCIENTIFIC
>> format before you write it down and then try to use it. Then the first
>> two terms above are properly displayed by EXCEL as 1.544E-7 X^3 and
>> -2.069E-4 X^2. (instead of 2E-7 and 2E-4).
>>
>> We catch this error in a lot of student's work...
>>
>> Bob, WB4APR
>
> _______________________________________________
> 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: 12
Date: Thu, 12 Dec 2013 17:21:54 +0000
From: David A B Johnson <dave@xxxxx.xx.xx>
To: Amsat - BBs <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] FUNcube WOD available for Download
Message-ID: <52A9F0B2.7010801@xxxxx.xx.xx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Hi,
As part of our STEM outreach strategy we are making WOD available for
off-line analysis.
This is delivered as a .csv file which can be downloaded from the Data
Warehouse by clicking
on the link on the WOD page:
https://warehouse.funcube.org.uk/wod.html
The file is written at 23:59 UTC every day and contains the WOD for the
preceding 24 hours.
Please read the notes on the page regarding the times stored in the file.
Enjoy!
73
Dave, G4DPZ
On behalf of the AO-73 team.
------------------------------
Message: 13
Date: Thu, 12 Dec 2013 10:05:05 -0800 (GMT-08:00)
From: Clint Bradford <clintbrad4d@xxxxxxxxx.xxx>
To: amsat-bb@xxxxx.xxxx amsat-bb@xxxxx.xxx
Subject: [amsat-bb] AMSAT Area Coordinators List
Message-ID:
<17249797.1386871505935.JavaMail.root@xxxxxxxxxxxxxxxx.xxx.xx.xxxxxxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
I have misplaced my AMSAT Area Coordinator list - is it posted somewhere
for access/download?
Clint K6LCS
----------------------------------
Clint Bradford, K6LCS
http://www.clintbradford.com
------------------------------
_______________________________________________
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 8, Issue 455
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