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CX2SA > SATDIG 05.08.11 06:05l 874 Lines 28139 Bytes #999 (0) @ WW
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To : SATDIG@WW
Today's Topics:
1. ArissatTlm for Mac (Gilbert Mackall)
2. Re: Moans and groans ... (Clint Bradford)
3. Re: ArissatTlm for Mac (Tom Schaefer, NY4I)
4. Re: ArissatTlm for Mac (Tom Schaefer, NY4I)
5. Re: ArissatTlm for Mac (Gilbert Mackall)
6. Re: Moans and groans ... (John Spasojevich)
7. Re: [suitsat2] Did Drew Hear Himself? (Bill Ress)
8. Re: Bickering ... (N0JY)
9. Re: Russia Today reports Kedr deployment (B J)
10. 5 in EM55 (wa4hfn@xxxxxxx.xxxx
11. Congrats on ARISSAT-1 deployment and Telemetry (charlie Cantrill)
12. Re: a little perspective (Phil Karn)
13. Re: a little perspective (Dale Hershberger)
14. ARISSat-1 over West Malaysia (Sion Chow Q. C. (9W2QC))
15. And now for something different (Rick Tejera)
16. Re: ARISSat-1 over West Malaysia (Gould Smith)
----------------------------------------------------------------------
Message: 1
Date: Thu, 4 Aug 2011 18:47:18 -0400
From: Gilbert Mackall <mackall@xxxxxxxxxxxx.xxx>
Subject: [amsat-bb] ArissatTlm for Mac
To: amsat-bb@xxxxx.xxx
Message-ID: <B3D09120-9C87-4E02-8C5D-A98638A4E5FC@xxxxxxxxxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Has anyone tried this program running under Lion ? I don't have it on my
development systems, but have had the question ask by some users.
Gilbert Mackall
N3RZN
------------------------------
Message: 2
Date: Thu, 4 Aug 2011 16:02:32 -0700
From: Clint Bradford <clintbrad4d@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Moans and groans ...
To: amsat-bb@xxxxx.xxx
Message-ID: <BC8C4B11-BBD4-4633-8FF0-3CA8B0B0DE00@xxxxxxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
>> ... the failure of Yuri's Night ...
Huh?
Yuri's Night was a wildly successful event - with gatherings on every
continent of the planet.
Tell any of the 28 people who attended my Yuri's Night party of a "failure,"
and they'll each
be able to properly educate you as to what Yuri's Night was all about.
Only a few of my attendees were hams. But everyone received handouts and
watched
NASA and Russian videos and had a marvelous time - while being educated as
to the
past, present, and future of space exploration.
No - We didn't have our new ham satellite to work that night. But to call
Yuri's Night a
"failure" is quite wrong - as would attendees of more than 550 parties in 75
countries
across seven continents will tell you. No "failure" occurred on the 50th
anniversary of
human spaceflight - only educational opportunities, camaraderie, and
knowledge was
shared among thousands.
Clint Bradford, K6LCS
------------------------------
Message: 3
Date: Thu, 4 Aug 2011 19:04:02 -0400
From: "Tom Schaefer, NY4I" <ny4i@xxxx.xxx>
Subject: [amsat-bb] Re: ArissatTlm for Mac
To: Gilbert Mackall <mackall@xxxxxxxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <040E7574-6187-4853-AAB1-04166A4DC92A@xxxx.xxx>
Content-Type: text/plain; charset=us-ascii
I just tried to open a sample WAV file on Lion and the open dialog is just
at the beach ball. The UI does come up though. I'm not sure if it is the wav
file. If you have a wav file you know works, email it to me directly and I
will try that.
Tom
Tom Schaefer, NY4I
ny4i@xxxx.xxx
EL88pb
Monitoring EchoLink node KJ4FEC-L 489389
DSTAR Capable APRS: NY4I-15
On Aug 4, 2011, at 6:47 PM, Gilbert Mackall wrote:
>
> Has anyone tried this program running under Lion ? I don't have it on my
development systems, but have had the question ask by some users.
>
> Gilbert Mackall
> N3RZN
> _______________________________________________
> 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: Thu, 4 Aug 2011 19:10:15 -0400
From: "Tom Schaefer, NY4I" <ny4i@xxxx.xxx>
Subject: [amsat-bb] Re: ArissatTlm for Mac
To: Gilbert Mackall <mackall@xxxxxxxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <96A41D1C-B6FF-45C6-BC6C-259560A6EF81@xxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Please ignore my prior email. I had to wait for it to open the sample WAV
file. The program seems to work fine on my install of Lion (10.8) as it is
displaying the sample data.
Regards,
Tom Schaefer, NY4I
ny4i@xxxx.xxx
EL88pb
Monitoring EchoLink node KJ4FEC-L 489389
DSTAR Capable APRS: NY4I-15
On Aug 4, 2011, at 6:47 PM, Gilbert Mackall wrote:
>
> Has anyone tried this program running under Lion ? I don't have it on my
development systems, but have had the question ask by some users.
>
> Gilbert Mackall
> N3RZN
> _______________________________________________
> 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: Thu, 4 Aug 2011 19:14:43 -0400
From: Gilbert Mackall <mackall@xxxxxxxxxxxx.xxx>
Subject: [amsat-bb] Re: ArissatTlm for Mac
To: "Tom Schaefer, NY4I" <ny4i@xxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <8E3BEF17-5FCD-4CA8-96AA-910DCA8755FD@xxxxxxxxxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Thank you for the quick response.
On Aug 4, 2011, at 7:10 PM, Tom Schaefer, NY4I wrote:
> Please ignore my prior email. I had to wait for it to open the sample WAV
file. The program seems to work fine on my install of Lion (10.8) as it is
displaying the sample data.
>
> Regards,
>
>
> Tom Schaefer, NY4I
> ny4i@xxxx.xxx
> EL88pb
> Monitoring EchoLink node KJ4FEC-L 489389
> DSTAR Capable APRS: NY4I-15
>
>
>
> On Aug 4, 2011, at 6:47 PM, Gilbert Mackall wrote:
>
>>
>> Has anyone tried this program running under Lion ? I don't have it on my
development systems, but have had the question ask by some users.
>>
>> Gilbert Mackall
>> N3RZN
>> _______________________________________________
>> 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: 6
Date: Thu, 4 Aug 2011 18:21:50 -0500
From: John Spasojevich <johnag9d@xxxxx.xxx>
Subject: [amsat-bb] Re: Moans and groans ...
To: Clint Bradford <clintbrad4d@xxxxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID:
<CA+qbou5e=wLcv+dcdeA9q0uhwDbVpWTDwTGi1wYXnj4iX+EtGg@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
When I said failure of Yuri's night I was speaking solely of ARISSat's role
in it.
John
On Thu, Aug 4, 2011 at 6:02 PM, Clint Bradford
<clintbrad4d@xxxxxxxxx.xxx>wrote:
> >> ... the failure of Yuri's Night ...
>
> Huh?
>
> Yuri's Night was a wildly successful event - with gatherings on every
> continent of the planet.
> Tell any of the 28 people who attended my Yuri's Night party of a
> "failure," and they'll each
> be able to properly educate you as to what Yuri's Night was all about.
>
> Only a few of my attendees were hams. But everyone received handouts and
> watched
> NASA and Russian videos and had a marvelous time - while being educated as
> to the
> past, present, and future of space exploration.
>
> No - We didn't have our new ham satellite to work that night. But to call
> Yuri's Night a
> "failure" is quite wrong - as would attendees of more than 550 parties in
> 75 countries
> across seven continents will tell you. No "failure" occurred on the 50th
> anniversary of
> human spaceflight - only educational opportunities, camaraderie, and
> knowledge was
> shared among thousands.
>
> Clint Bradford, K6LCS
>
>
>
>
> _______________________________________________
> 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: Thu, 04 Aug 2011 17:24:02 -0700
From: Bill Ress <bill@xxxxxxxxxxx.xxx>
Subject: [amsat-bb] Re: [suitsat2] Did Drew Hear Himself?
To: suitsat2@xxxx.xxx
Cc: AMSAT-BB@xxxxx.xxx
Message-ID: <4E3B3822.8080204@xxxxxxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Steve - - additional, you may recall the RX tests in the clean room at
your place. The RX is very sensitive having a NF (which includes the
front end SAW filter) of just under 5 dB.
Lou - thanks for commenting on what probably remains at the 70 CM input.
I did some rough calcs and with the sensitivity of the RX and about 1.5"
for an antenna, sub-microvolt signals will be heard. The 1 watt test
Drew ran attests to that.
So what this all means is that the transponder function is only
minimally impacted by the lack of a 1/4 wavelength antenna. We need to
get the word out that most typically equipped 70 CM satellite stations
will make it through. Right now most everyone is focused on the easy
signals but the linear transponder is almost fully functional. The very
sweet thing is that with the transponder functioning we can now verify
that the SDX is spot on in every way designed (Nice job guys!!)
Another good test will be to exercise the command function. Now it will
take a bit more power at the satellite which was by design anyway. I'm
sure that's in the plan after the dust settles.
Regards...Bill - N6GHz
On 8/4/2011 3:30 PM, Louis McFadin wrote:
> The antenna consists of a portion that is encased in grey Epoxy.
> That part is about 1.5 inches long.
> It's probably good enough for strong signals to get through.
> SWR is not so important on a receive only antenna.
>
> On Aug 4, 2011, at 6:06 PM, Steven.Bible@xxxxxxxxx.xxx wrote:
>
>> Hi Everyone,
>>
>> Glad to hear! I was just concerned and wanted to be sure. Then this
>> opens up a lot more experimentation from the ham community.
>>
>> Question - How do you think the uplink is being received with no
>> antenna?
>>
>>
>> Steven Bible
>> Applications Engineering Manager
>> Wireless Products Division
>> Microchip Technology Inc.
>> Office Phone: +1-480-792-4298
>> Mobile Phone: +1-480-384-0319
>>
>>
>> -----Original Message-----
>> From: suitsat2-bounces@xxxx.xxx [mailto:suitsat2-bounces@xxxx.xxxx On
>> Behalf Of Anthony Monteiro
>> Sent: Thursday, August 04, 2011 2:29 PM
>> To: suitsat2@xxxx.xxx
>> Subject: Re: [suitsat2] Did Drew Hear Himself?
>>
>> Dear Friends,
>>
>> The transponder is inverting. The third harmonic
>> would be highly distorted and opposite sideband!
>>
>> Also, I can confirm the transponder is working
>> from hearing my own transmissions. I also heard other
>> stations that were "ditters" on the downlink.
>>
>> 73,
>> Tony AA2TX
>> ---
>> On 8/4/2011 4:23 PM, Joe Fitzgerald wrote:
>>>
>>>
>>>> I am really wondering if Drew heard himself indirectly, and not
>> through
>>>> the transponder. There's a 3X difference between the uplink and
>> downlink
>>>> frequencies.
>>>>
>>>> Thoughts?
>>>>
>>>
>>>
>>> Drew was appropriately skeptical himself, he notes in his report:
>> "Sounded
>>> VERY good, and cycled on and off with the telemetry."
>>>
>>> -Joe KM1P
>>>
>>>
>>> _______________________________________________
>>> suitsat2 mailing list
>>> suitsat2@xxxx.xxx
>>> https://www.tapr.org/cgi-bin/mailman/listinfo/suitsat2
>>>
>>>
>>
>> _______________________________________________
>> suitsat2 mailing list
>> suitsat2@xxxx.xxx
>> https://www.tapr.org/cgi-bin/mailman/listinfo/suitsat2
>>
>> _______________________________________________
>> suitsat2 mailing list
>> suitsat2@xxxx.xxx
>> https://www.tapr.org/cgi-bin/mailman/listinfo/suitsat2
>
>
>
> Lou McFadin
> W5DID
> ARISS US Hardware manager
>
>
>
> _______________________________________________
> suitsat2 mailing list
> suitsat2@xxxx.xxx
> https://www.tapr.org/cgi-bin/mailman/listinfo/suitsat2
>
------------------------------
Message: 8
Date: Thu, 04 Aug 2011 19:26:48 -0500
From: N0JY <n0jy@xxxxxxx.xxx>
Subject: [amsat-bb] Re: Bickering ...
To: amsat-bb@xxxxx.xxx
Message-ID: <4E3B38C8.4030701@xxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Well bust my buttons, I did get some SSTV pictures overnight and while I
was at work today!
I left the SatPC32 running the FT-736R and antennas, with MMSSTV.
Sure enough, I can enjoy a taste of the fun without being here, and come
home to some surprises!
Jerry
N0JY
On 8/4/2011 2:13 PM, Dee wrote:
> Jerry,
> Yes, I have been there too. So has Clint. Now that I am retired, I
> do not have to wait until the weekend...
> Don't wish away the time. When it happens, you'll be in our boat too.
> 73,
> Dee, NB2F
>
>
__________ Information from ESET NOD32 Antivirus, version of virus signature
database 6351 (20110804) __________
The message was checked by ESET NOD32 Antivirus.
http://www.eset.com
------------------------------
Message: 9
Date: Thu, 4 Aug 2011 17:38:10 -0700 (PDT)
From: B J <top_gun_canada@xxxxx.xxx>
Subject: [amsat-bb] Re: Russia Today reports Kedr deployment
To: Phil Karn <karn@xxxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID:
<1312504690.5970.YahooMailClassic@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
<snip>
> > Correction: I don't recall the celebration of
> Gagarin's flight ever being a
> > SIGNIFICANT part of ARISSat-1's mission...
>
> Although Gagarin's flight was undertaken at a time of
> intense and heated
> competition with the United States, it was still a
> significant
> accomplishment and one that the Russians have every right
> to be proud
> of. So I'm not going to begrudge them this.
>
> I am more concerned about the inaccurate reports that say
> this
> spacecraft was built entirely by Russian university
> students. The
> project managers should write a polite note pointing out
> the facts of
> the matter -- that the spacecraft was actually designed and
> built by US
> volunteer radio amateurs under the auspices of AMSAT and
> NASA and with
> significant support from several American corporations.
> Only the
> *science experiment* it is carrying was built by Russian
> university
> students.
As I mentioned in another posting, in the NASA TV commentary, there hardly
any reference to ARISSat as having anything to do with amateur radio others
than AMSAT having contributed to its design and construction.
73s
Bernhard VA6BMJ @ DO33FL
<snip>
------------------------------
Message: 10
Date: Fri, 5 Aug 2011 00:53:20 +0000 (UTC)
From: wa4hfn@xxxxxxx.xxx
Subject: [amsat-bb] 5 in EM55
To: AMSAT <amsat-bb@xxxxx.xxx>
Message-ID:
<1887820071.100000.1312505600237.JavaMail.root@xxxxxxx.xxxxxxxxxxx.xx.xxxx.xxx
xxxx.xxx>
Content-Type: text/plain; charset=utf-8
Congrats to Ted K7TRK award # 018 for 5 in EM 55
WA4HFN EM55 Damon
------------------------------
Message: 11
Date: Thu, 4 Aug 2011 17:54:10 -0700 (PDT)
From: charlie Cantrill <ki4rdt@xxxxx.xxx>
Subject: [amsat-bb] Congrats on ARISSAT-1 deployment and Telemetry
To: amsat-bb@xxxxx.xxx
Message-ID:
<1312505650.88705.YahooMailClassic@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Congrats to AMSAT on a job well done! My cisco networking class participated
in receiving SSTV images, telemetry, and they got a kick out of the voice
greetings. The Decoder was a snap once I found the CW spike in the spectrum
and got it lined up. We did notice the deep fades and can see the fades in
the SSTV images, and one student pointed out the panel voltages and temps
confirming the rotating. Looks like the z- panel was spending more of its
time out of the sun.
Charlie CantrillKI4RDTNelson County Area Technology Center
------------------------------
Message: 12
Date: Thu, 04 Aug 2011 19:13:10 -0700
From: Phil Karn <karn@xxxxxxxx.xxx>
Subject: [amsat-bb] Re: a little perspective
To: Jim Jerzycke <kq6ea@xxxxxxx.xxx>
Cc: AMSAT-BB <amsat-bb@xxxxx.xxx>
Message-ID: <4E3B51B6.9000808@xxxxxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
On 8/3/11 8:21 PM, Jim Jerzycke wrote:
> At least AO-40 had a usable life for some. This thing is just another
> squawk box in space, like all the "student" satellites that are using
> the Amateur Radio frequencies for a free downlink.
Jim,
With the successful transponder tests it would seem that you spoke too
soon. Besides, I really like lemonade.
As far as I'm concerned, educational satellites carrying student
scientific experiments are a perfectly legitimate use of the amateur
spectrum as long as licensed amateurs are centrally involved and the
experimental data is in the clear and publicly documented.
I certainly have no objection to two-way transponders for open ham use.
I'm as delighted as anyone that the ARISSat-1 transponder seems to be
working well despite its damaged 70cm antenna.
But AMSAT has been flying linear transponders for over 40 years now, and
you have to admit they're pretty old hat. When I became a ham in 1971,
just hearing a satellite direct from space was pretty interesting.
Actually talking through one was totally beyond cool. You just can't
expect today's kids to feel that way when they already use the Internet,
mobile phones, GPS, Sirius/XM and DirecTV every day.
Ham radio can't possibly survive as a mere communications medium. We
must emphasize all its other uses, some of which are still unique.
At the top of that list is *EDUCATION*. Ham radio remains the only way
for ordinary individuals to learn radio technology hands-on. If you just
want to talk to people, mobile phones are great. But just try taking one
apart to see how it works!
Ordinary individuals can also advance radio technology through ham
radio. And they can use it for other technical and scientific
investigations. Although mobile phones and the Internet now provide
inexpensive, near-ubiquitous communications between any two points on
earth, they still don't go everywhere. Like near outer space, which ham
radio reaches easily.
So using a ham satellite just to link points on the earth that could
communicate much more easily over the Internet doesn't interest me as
much as using ham radio to communicate with the satellite itself. And
satellites have much to "talk" about: camera images, information about
the satellite itself (i.e., telemetry), scientific data from experiments
and human-human communications from any astronauts or cosmonauts on
board. Instead of trying to compete with the Internet, it can complement
our radio links (e.g., KA2UPW's telemetry repository). This is
especially handy for satellites in low orbits with short passes over any
one location.
Amateur satellites can be so much more than simple transponders; in
fact, they'll have to be. And I think that's a good trend.
--Phil
------------------------------
Message: 13
Date: Thu, 04 Aug 2011 18:32:47 -0800
From: Dale Hershberger <daleh@xxxxxx.xxx>
Subject: [amsat-bb] Re: a little perspective
To: amsat-bb@xxxxx.xxx
Message-ID: <4E3B564F.6090603@xxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
On 8/4/2011 6:13 PM, Phil Karn wrote:
> On 8/3/11 8:21 PM, Jim Jerzycke wrote:
>
>> At least AO-40 had a usable life for some. This thing is just another
>> squawk box in space, like all the "student" satellites that are using
>> the Amateur Radio frequencies for a free downlink.
> Jim,
>
> With the successful transponder tests it would seem that you spoke too
> soon. Besides, I really like lemonade.
>
> As far as I'm concerned, educational satellites carrying student
> scientific experiments are a perfectly legitimate use of the amateur
> spectrum as long as licensed amateurs are centrally involved and the
> experimental data is in the clear and publicly documented.
>
> I certainly have no objection to two-way transponders for open ham use.
> I'm as delighted as anyone that the ARISSat-1 transponder seems to be
> working well despite its damaged 70cm antenna.
>
> But AMSAT has been flying linear transponders for over 40 years now, and
> you have to admit they're pretty old hat. When I became a ham in 1971,
> just hearing a satellite direct from space was pretty interesting.
> Actually talking through one was totally beyond cool. You just can't
> expect today's kids to feel that way when they already use the Internet,
> mobile phones, GPS, Sirius/XM and DirecTV every day.
>
> Ham radio can't possibly survive as a mere communications medium. We
> must emphasize all its other uses, some of which are still unique.
>
> At the top of that list is *EDUCATION*. Ham radio remains the only way
> for ordinary individuals to learn radio technology hands-on. If you just
> want to talk to people, mobile phones are great. But just try taking one
> apart to see how it works!
>
> Ordinary individuals can also advance radio technology through ham
> radio. And they can use it for other technical and scientific
> investigations. Although mobile phones and the Internet now provide
> inexpensive, near-ubiquitous communications between any two points on
> earth, they still don't go everywhere. Like near outer space, which ham
> radio reaches easily.
>
> So using a ham satellite just to link points on the earth that could
> communicate much more easily over the Internet doesn't interest me as
> much as using ham radio to communicate with the satellite itself. And
> satellites have much to "talk" about: camera images, information about
> the satellite itself (i.e., telemetry), scientific data from experiments
> and human-human communications from any astronauts or cosmonauts on
> board. Instead of trying to compete with the Internet, it can complement
> our radio links (e.g., KA2UPW's telemetry repository). This is
> especially handy for satellites in low orbits with short passes over any
> one location.
>
> Amateur satellites can be so much more than simple transponders; in
> fact, they'll have to be. And I think that's a good trend.
>
> --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
>
Well put Phil! I concur !!
Dale/KL7XJ
------------------------------
Message: 14
Date: Thu, 04 Aug 2011 23:04:28 -0400
From: "Sion Chow Q. C. (9W2QC)" <9w2qc@xxxxx.xxx>
Subject: [amsat-bb] ARISSat-1 over West Malaysia
To: amsat-bb@xxxxx.xxx
Cc: sangatsingh@xxxxx.xxx
Message-ID: <20110804230428.519837ezfcekpdq8@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; DelSp="Yes";
format="flowed"
Dear All,
It was great to receive ARISSsat-1 over West Malaysia during 5th
August 2011, 0223 UTC pass. Maximum elevation was 89 degrees.
The downlink of both 145.919 MHz USB and 145.950 MHz FM was 59+60db,
very strong but with huge QSB observed. A total of 3 SSTV pictures
were forwarded to the ARISS SSTV gallery and some telemetry/Kursk data
were forwarded by ARISSatTLM.
Congratulations to all those involved with ARISSsat-1 and we look
forward to trying out the transponder on the next pass.
A few questions I have if someone could please help me clarify them:
1. Is it possible to have the callsign and forwarding telemetry option
always set in ARISSsatTLM? This way, we do not have to manually enter
the callsign and enable telemetry forwarding each time the program
starts up.
2. Does the CW beacon needs to be really +/- 100 Hz of the yellow
line? The reason for this is that I would like to see how much offset
should I apply to doppler control, for possible automated reception.
3. In low power (eclipse) mode, how often does the BPSK1000 telemetry
transmits?
Thank you.
73,
Sion Chow Q. C.,
9M2CQC,
Also: WQ2C /HL1, 9V1QC, JG1XHM
ex: 9W2QC, AB3IO
------------------------------
Message: 15
Date: Thu, 4 Aug 2011 20:25:34 -0700
From: "Rick Tejera" <saguaroastro@xxx.xxx>
Subject: [amsat-bb] And now for something different
To: "'AMSAT'" <amsat-bb@xxxxx.xxx>
Message-ID:
<20110805032726.MLTB3904.fed1rmfepo103.cox.net@xxxxxxxxxxxx.xxx.xxx>
Content-Type: text/plain; charset="us-ascii"
All,
Got this from one of my astronomy buddies, thought it might be of interest
to some on this list. Would've posted it sooner but it got lost among all
the chatter about ARISSat-1:
Just announced, a huge nearly x class solar flare that was
earth directed should yield some aurora possibly here in Arizona:
Moving at an estimated speed of 1950 km/s, this CME is
expected to sweep up two earlier CMEs already en route. Analysts at the GSFC
Space Weather Lab say the combined cloud should reach Earth on August 5th at
13:55 UT plus or minus 7 hours: "The impact on Earth is likely to be major.
The estimated maximum geomagnetic activity index level Kp is 7 (Kp ranges
from 0 - 9).
Clear Skies,
Clear Skies
Rick Tejera
Saguaro Astronomy Club
Phoenix, Arizona
www.saguaroastro.org <http://www.saguaroastro.org/>
saguaroastro@xxx.xxx
K7TEJ, AMSAT 38452
------------------------------
Message: 16
Date: Thu, 4 Aug 2011 23:46:04 -0400
From: "Gould Smith" <gouldsmi@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: ARISSat-1 over West Malaysia
To: "Sion Chow Q. C. \(9W2QC\)" <9w2qc@xxxxx.xxx>,
<amsat-bb@xxxxx.xxx>
Cc: sangatsingh@xxxxx.xxx
Message-ID: <4C8A73A580DF4AA29391623D34968F31@xxxxxxxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
Hello Sion,
Thank you for the reception report.
1) I have forwarded your request to store the callsign and enable forwarding
to the ARISSatTLM software developer.
2) Good question. We look forward to your help in determining this. We are
anxious to optimize the software, once we get real world reception. Our
initial efforts to maximize lead to tradeoffs, so rather than pursue unknown
cases we decided to wait until we got real data from the satellite in orbit.
3) The BPSK data is sent every time the transmitter is on in Low Power and
High Power. The transmitter is turned off for 2 minutes after the 30+ sec on
time.
73,
Gould, WA4SXM
----- Original Message -----
From: "Sion Chow Q. C. (9W2QC)" <9w2qc@xxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Cc: <sangatsingh@xxxxx.xxx>
Sent: Thursday, August 04, 2011 11:04 PM
Subject: [amsat-bb] ARISSat-1 over West Malaysia
> Dear All,
>
> It was great to receive ARISSsat-1 over West Malaysia during 5th
> August 2011, 0223 UTC pass. Maximum elevation was 89 degrees.
>
> The downlink of both 145.919 MHz USB and 145.950 MHz FM was 59+60db,
> very strong but with huge QSB observed. A total of 3 SSTV pictures
> were forwarded to the ARISS SSTV gallery and some telemetry/Kursk data
> were forwarded by ARISSatTLM.
>
> Congratulations to all those involved with ARISSsat-1 and we look
> forward to trying out the transponder on the next pass.
>
> A few questions I have if someone could please help me clarify them:
> 1. Is it possible to have the callsign and forwarding telemetry option
> always set in ARISSsatTLM? This way, we do not have to manually enter
> the callsign and enable telemetry forwarding each time the program
> starts up.
> 2. Does the CW beacon needs to be really +/- 100 Hz of the yellow
> line? The reason for this is that I would like to see how much offset
> should I apply to doppler control, for possible automated reception.
> 3. In low power (eclipse) mode, how often does the BPSK1000 telemetry
> transmits?
>
> Thank you.
>
> 73,
> Sion Chow Q. C.,
> 9M2CQC,
> Also: WQ2C /HL1, 9V1QC, JG1XHM
> ex: 9W2QC, AB3IO
>
>
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
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>
------------------------------
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End of AMSAT-BB Digest, Vol 6, Issue 429
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