Date   

WOO! first image from ARISSsat-1

Jim Cameron
 

Well, I did it gents or should I say we.  I say that because with out this group I would never have even tryed to work the birds.  At 03:17:57 UTC.  8/11/2011. I got  my first SSTV image from ARISSsat-1 and first interaction with a satalite. it may have been one way but it a start. feels like the first QSO I ever had just way cooler.  Man was that cool! Others have got it before and I have seen it but it amost breath taking to see the image apeer  on the screenand  know its coming from you radio and see that MMSSTV is working. I heard faint voice to but could not make it out. I didnt relize what i was hearing at first so did not hit record, Next time.  Its not that good but it still was cool. Another pass in a couple hours and a few in the day light. WoW. I fell like a little kid but hay you gents know how I feel.
 
73
KC9PXZ
Jimmy


Re: recieving SSTV from ARISSat-1

Jim Cameron
 

Hi Les, Clint, and all,
 
I got that new recieve cord done. man I dont know what I did wrong on the first one, but this new one man!  this time I got signal in the water fall and the recieved audio bar about half way. Sounds good. Audio in move up and down with the signal. And volume control on the radio. Maybe I did this one right.  speacker out to line in on the sound card. I can tune around hear and record other freq. and use the rig to QSO to. with the cord pluged in. So now again I am on freq. waiting for ARISSat-1 to make her pass.
 
So I guess now I wait and see. I wiil post what happens.
 
Now maybe I can work on the transmit interface side Hi Hi.
 
73
KC9PXZ
Jimmy

----- Original Message -----
From: Les
Sent: Tuesday, August 09, 2011 6:56 PM
Subject: [Work-Sat] Re: recieving SSTV from ARISSat-1

 

Jim, my advice to use line in was based on the understanding that you was coupling your radio to the computer via the audio output jack on the radio.  If you are using a mike, then by all means use the mike input.  You may not get enough gain using line in with a mike.  Using a mike is not the best way to do this, as you will pick up other noises that will show up in the picture.  But it will work. 

I've received pictures both in the morning after daylight, and a few after dark.  The ones received in daylight are much better.  It is my understanding that the satellite goes to low power when in the earth's shadow, to conserve battery power.  So your best chance for a good picture would be during a daylight pass.

I can't think of any way to start MMSSTV at the start of the pass.

Les KC0PTO 



--- In Work-Sat@..., "Jim Cameron \"KC9PXZ\"" wrote:
>


Re: ARISSAT-1 Heard it :)

fejohnso
 

I have recorded  a couple of the Arssat-1 passes, but I dont see anywhere on the SSTV or the telementry programs to use a file from the computer to decode the recordings. Can anyone help.

Forrest, KC9JFX


--- On Tue, 8/9/11, cap_cstorey wrote:

From: cap_cstorey
Subject: [Work-Sat] ARISSAT-1 Heard it :)
To: Work-Sat@...
Date: Tuesday, August 9, 2011, 4:12 PM

 

It's things like this that keep me excited about Amateur Radio! I copied the FM downlink on the Aug 9 0543Z pass last night in Torrance, Calif. Used a VX7 with a ¼ wave magmount on the car. Will need to try my Arrow yagi next time. I copied the majority of the pass from the VERY weak AOS through moderately strong to the VERY weak LOS. I clearly heard the voice telemetry and the very end of the English kids message, then a foreign language kids message. I even heard the distinctive SSTV at the very end as it was approaching LOS. I will have to download MSSTV and see if I got anything. Next time, I will remember my audio cord and try to get a better recording rather than holding the recorder next to the radio.

73's and good luck – de KA6WNK


Re: ARISSat-1 BPSK-1000

W7SS
 

Thanks for the info I'll download Orbitron and give it a try.
Not looking forward to the learning curve, I just got SatPC32 working correctly, and just figured out the ARISSatTLM package.
SatPC32 handles the doppler and tracking well, I just don't get a good signal from the CW Beacon and the SSB Telemetry. My understanding is to tune around 145.919MHZ USB until the CW ID tone is around 500HZ then every thing should lock and work. I've got a 65 deg. pass coming up at 10PM, I'll try again. Because this bird isn't spin stabilized, I think the deep fading is doing me in.

--- In Work-Sat@yahoogroups.com, "Siegfried Jackstien" <siegfried.jackstien@...> wrote:

Yes ... me :-)
I used orbitron for tracking the qrg
In hdsdr I switched the dde driver to control TUNE not the LO !!!
The fcd makes coarse steps when you tune it
The sdr soft can do finer steps and with that you can be right on spot
Ok here the setup
Orbitron for tracking qrg (any tracking soft with dde link should work)
Qrg is sent to hdsdr
Hdsdr sets the lo for the fcd 10kc lower as the qrg that orbitron sent via
dde (so during a pass lo is NOT changed!!) if the qrg is not in the passband
I change it after starting to be on 145940
Hdsdr does not change it anymore so pll of fcd stays locked!
In orbitron I made a new textfile : 37772.txt
Content:
**********start of txt file******
NAME: RADIOSKAF-B (ARISSAT-1)
LAUNCHED: 2011/08/03@18:43:00 UTC
SITE: Deployed from ISS on EVA29
STATUS: Operational/NEW
DNLINK: 145.950 (FM)
DNLINK: 145.9183 (CW+BPSK1000)
DNLINK: 145.91835 (CW+BPSK1000)
DNLINK: 145.9184 (CW+BPSK1000)
Notes: ARISSAT-1 was launched without uplink antenna!
*********end of file************
(delete the lines with the stars!!)

You maybe have a bit different qrg to put in the file
So maybe you have to change tha value a bit

the goal is that you have the cw note at 500 to 650 hz
(about 550 worked best for me)

Now I routed the audio from sdr software to tlm software via virtual audio
cable ....
The tlm software locks on the cw note ... so if you have it tuned right on
spot you should also receive the data
Hope that helps
Dg9bfc
Sigi

-----Ursprüngliche Nachricht-----
Von: Work-Sat@yahoogroups.com [mailto:Work-Sat@yahoogroups.com] Im Auftrag
von kf7dur
Gesendet: Dienstag, 9. August 2011 15:44
An: Work-Sat@yahoogroups.com
Betreff: [Work-Sat] ARISSat-1 BPSK-1000



Anyone have any luck receiving the telemetry? I've had success with the FM
voice and SSTV but not with the telemetry. I have briefly heard the CW
beacon but not long enough to get tuned in to receive the data.I'm using
the ARISatTLM software, yagi antenna Az/El rotor, tracking with PCSat32,
using doppler correction, etc..

Ken
KF7DUR




Re: recieving SSTV from ARISSat-1

Jim Cameron
 

Hi Les,
 
That was my plan was to couple my radio to my PC with the audio out "speacker jack" on my radio. to the line in on my sound card.  I went with the mic as a temp fix. The cord does not seem to pick up anything. I tryed serval times. I am making a new cord now I just was unsure if I would get it done for tonights pass.  I may. Tomorrow for sure I should have the new cord done. I just been busy lately with other stuff.
 
73
KC9PXZ
Jimmy

----- Original Message -----
From: Les
Sent: Tuesday, August 09, 2011 6:56 PM
Subject: [Work-Sat] Re: recieving SSTV from ARISSat-1

 

Jim, my advice to use line in was based on the understanding that you was coupling your radio to the computer via the audio output jack on the radio.  If you are using a mike, then by all means use the mike input.  You may not get enough gain using line in with a mike.  Using a mike is not the best way to do this, as you will pick up other noises that will show up in the picture.  But it will work. 

I've received pictures both in the morning after daylight, and a few after dark.  The ones received in daylight are much better.  It is my understanding that the satellite goes to low power when in the earth's shadow, to conserve battery power.  So your best chance for a good picture would be during a daylight pass.

I can't think of any way to start MMSSTV at the start of the pass.

Les KC0PTO 


Re: recieving SSTV from ARISSat-1

Les <kc0pto@...>
 

Jim, my advice to use line in was based on the understanding that you was coupling your radio to the computer via the audio output jack on the radio.  If you are using a mike, then by all means use the mike input.  You may not get enough gain using line in with a mike.  Using a mike is not the best way to do this, as you will pick up other noises that will show up in the picture.  But it will work. 

I've received pictures both in the morning after daylight, and a few after dark.  The ones received in daylight are much better.  It is my understanding that the satellite goes to low power when in the earth's shadow, to conserve battery power.  So your best chance for a good picture would be during a daylight pass.

I can't think of any way to start MMSSTV at the start of the pass.

Les KC0PTO 



--- In Work-Sat@..., "Jim Cameron \"KC9PXZ\"" wrote:
>
> Ok Les thanks.
>
> I was working with a bad cord. I finely got my hands on a Mic set it near the speacker and pluged the mic into the line in. I then opened MMSSTV.

I wonder if there is a way to set things up so that MMSSTV begins recording at the begining of a pass than stop at the end?



Re: recieving SSTV from ARISSat-1

Jim Cameron
 

Ok Les thanks.
 
  I was working with a bad cord. I finely got my hands on a Mic set it near the speacker and pluged the mic into the line in. I then opened MMSSTV. I was getting signal lines in the waterfall. the recieved audio level stayed pretty low no matter what I did. I tuned in a voice transmission  and recorded it and played it back sounded pretty good. I then tuned 145.950. opened the squelch all the way and recorded that seemed loud enough,  then backed it down to were it just cut off the audio. I am pretty sure I have MMSSTV set right to auto start and save any images from ARISSat-1. So now the rig is setting on the desk  tuned to 145.950 waiting for the real signal from ARISSat-1. As I understand there is also a voice transmission on the same freq. I wonder if there is a way to set things up so that MMSSTV begins recording at the begining of a pass than stop at the end?
 
 
Am sat is loading weird, the flight path is at the top of the page and not even on the  map. I refreshed  like eight times same deal. I dont know whats up with that. my grid is   EN43qt. My next pass is 03:16:10 UTC about 10:16 PM local time. Last nine minites ans five seconds and end at 03:25:15 UTC abot 10:25 PM. I should still be up so I can see how it goes. hopeully I will get somthing.

----- Original Message -----
From: Les
Sent: Sunday, August 07, 2011 3:44 PM
Subject: [Work-Sat] Re: recieving SSTV from ARISSat-1

 

I would recommend you use line in.  Mike in has a lot of gain that you don't need.  I set my outp[ut level wit no signal by turning the squelch off, and set receiver output level so that the white noise makes the MMSSTV receive level indicator go about half scale.  Then set the squelch just below where it cuts off the audio.  I received two more pictures this morning, again while I was asleep, so I don't know just where the level was during receive.  But it seems to work out pretty good for my setup, which is very similar to yours except for different radio and antenna. 

Good Luck!

Les KC0PTO   


Re: ARISSAT-1 Heard it :)

Siegfried Jackstien
 

Just a few minutes after the last pass i had a lucky shot :-)
I tried to decode telemetry live with the tlm soft, hdsdr, funcube, orbitron
, vac ...
I could not decode it while sat was flying over me :-(
But I recorded the rf stream from hdsdr and played it back another time
Now I had to compensate doppler by hand (not by orbitron) and I could decode
a complete kursk frame and upload it to the internet
Now I checked the fm transmissions (again replayed the recorded rf)
And I could make a wave file with the spoken telemetry data
... so guys what you can never do with a analog radio:
Play back and forth in an rf stream and take this or that transmission and
decode it later :-)
If you really wanna play around with this ... ask your xyl for some pocket
money and buy a funcube dongle
Or any other sdr frontend ... maybe just a downconverter from your
conventional rig for the first steps in sdr (been there done that) ... and
after you find out what sdr can do for you you will sure buy also an fcd
You can work live via arissat (uhf up 2m down) and record the audio and sstv
while you have a qso right next to it
So work over the sat and record the rf stream with sdr soft ... after the
pass is over you can play it back another time and see who else was on the
sat or you can decode the telemetry or sstv pictures
SDR ROCKS :-)
Dg9bfc
Sigi

-----Ursprüngliche Nachricht-----
Von: Work-Sat@yahoogroups.com [mailto:Work-Sat@yahoogroups.com] Im Auftrag
von cap_cstorey
Gesendet: Dienstag, 9. August 2011 20:12
An: Work-Sat@yahoogroups.com
Betreff: [Work-Sat] ARISSAT-1 Heard it :)



It's things like this that keep me excited about Amateur Radio! I copied
the FM downlink on the Aug 9 0543Z pass last night in Torrance, Calif.
Used a VX7 with a ¼ wave magmount on the car. Will need to try my Arrow
yagi next time. I copied the majority of the pass from the VERY weak AOS
through moderately strong to the VERY weak LOS. I clearly heard the voice
telemetry and the very end of the English kids message, then a foreign
language kids message. I even heard the distinctive SSTV at the very end
as it was approaching LOS. I will have to download MSSTV and see if I got
anything. Next time, I will remember my audio cord and try to get a better
recording rather than holding the recorder next to the radio.

73's and good luck – de KA6WNK




Re: Question on Spin Fading and Antenna Polarization

Siegfried Jackstien
 

Ok then the answer is ... it depends ... what antenna(s) are on the sat and
how are they mounted and oriented in what direction while you are pointing
at the sat .... so best would be antenna that has right hand polarization
and that can be switched to left hand (and maybe linear)
Greetz
Sigi
Dg9bfc

-----Ursprüngliche Nachricht-----
Von: Work-Sat@yahoogroups.com [mailto:Work-Sat@yahoogroups.com] Im Auftrag
von John Mcfadden
Gesendet: Dienstag, 9. August 2011 18:19
An: Work-Sat@yahoogroups.com
Betreff: [Work-Sat] Re: Question on Spin Fading and Antenna Polarization



Thanks Sigi.

I probably messed up by asking these two questions together. The second
one was referring to working satellites in general - not ARISSat-1.

Cheers,

John

--- In Work-Sat@yahoogroups.com <mailto:Work-Sat%40yahoogroups.com> ,
"Siegfried Jackstien" <siegfried.jackstien@...> wrote:

Rx and tx antenna are on upper and lower side of the sat
So orientation is the same
But the sat has no rx antenna (or only a part of it)
That is lowering sensitivity a bit
The antennas have the same direction (180 offF
Best would sure be to use circular polarized antennas ...
But as its signals are high enough even an omniantenna could be used for
receive (qfh, eggbeater, turnstile)
Maybe the sat has been launched with that spin for better temperature
controlling ... maybe for having safety if a solar panel is broken
... think ... it the sat would not turn (slowly) and you would loose a
panel
that shows to sun ... how could the sat load his battery?
Maybe the spin is caused by the lauching? Can you push a sat away from
iss
without a slight spin? I would say it is difficult for a spacewalker to
do
this ...
Greetz sigi
Ps try out what works best ... and tell the group your results

-----Ursprüngliche Nachricht-----
Von: Work-Sat@yahoogroups.com <mailto:Work-Sat%40yahoogroups.com>
[mailto:Work-Sat@yahoogroups.com <mailto:Work-Sat%40yahoogroups.com> ] Im
Auftrag
von John Mcfadden
Gesendet: Dienstag, 9. August 2011 17:56
An: Work-Sat@yahoogroups.com <mailto:Work-Sat%40yahoogroups.com>
Betreff: [Work-Sat] Question on Spin Fading and Antenna Polarization



Hi Guys,

Since I have very little experience in this field yet , I have two
questions that those of you with more experience might be able to
answer.

The first one is about spin fading. Various posters over the last week
have commented on the fact that ARISSat-1 is rotating causing spin
fading.
I've listened to a number of passes and definitely noticed the effect
myself. My question is, was the satellite deliberately launched
spinning
for a particular reason, for example, so that the internal temperature
would be more stable, etc? If it is not rotating on purpose, based on
experience with other satellites, do any of you know how long the
current
rotation is likely to continue?

My second question has to do with the differences between the Arrow
and
Elk antennas. I know that people get great results with both. I have
an
Arrow and when holding it during reception, twisting it definitely
helps
to null out noise. Since I haven't been transmitting yet, I'm curious
about the necessity or advantage of twisting the antenna during
transmission. Maybe, it's not an issue. With the Arrow, the two
antennas
are at 90 degrees to each other, so if you twist the receive antenna
to
get the best reception, how does that affect the efficiency of your
transmission?

The reason I ask this is that because the Elk is a Log Periodic
antenna,
during both transmission and reception, the antenna has the same
polarization. Given that the satellite has separate receiver and
transmitter antennas, if we are not using circularly polarized
antennas,
are we better having two antennas with difference polarization (Arrow)
or
one with the same (Elk)? Or, does any of this really matter in the
grand
scheme of things?!

Thanks,

John
(hope to be able to add a callsign here by the end of this week)






ARISSAT-1 Heard it :)

cap_cstorey <cap_cstorey@...>
 

It's things like this that keep me excited about Amateur Radio! I copied the FM downlink on the Aug 9 0543Z pass last night in Torrance, Calif. Used a VX7 with a ¼ wave magmount on the car. Will need to try my Arrow yagi next time. I copied the majority of the pass from the VERY weak AOS through moderately strong to the VERY weak LOS. I clearly heard the voice telemetry and the very end of the English kids message, then a foreign language kids message. I even heard the distinctive SSTV at the very end as it was approaching LOS. I will have to download MSSTV and see if I got anything. Next time, I will remember my audio cord and try to get a better recording rather than holding the recorder next to the radio.

73's and good luck – de KA6WNK


Re: Question on Spin Fading and Antenna Polarization

John Mcfadden <jmcf2005@...>
 

Thanks Sigi.

I probably messed up by asking these two questions together. The second one was referring to working satellites in general - not ARISSat-1.

Cheers,

John

--- In Work-Sat@yahoogroups.com, "Siegfried Jackstien" <siegfried.jackstien@...> wrote:

Rx and tx antenna are on upper and lower side of the sat
So orientation is the same
But the sat has no rx antenna (or only a part of it)
That is lowering sensitivity a bit
The antennas have the same direction (180 offF
Best would sure be to use circular polarized antennas ...
But as its signals are high enough even an omniantenna could be used for
receive (qfh, eggbeater, turnstile)
Maybe the sat has been launched with that spin for better temperature
controlling ... maybe for having safety if a solar panel is broken
... think ... it the sat would not turn (slowly) and you would loose a panel
that shows to sun ... how could the sat load his battery?
Maybe the spin is caused by the lauching? Can you push a sat away from iss
without a slight spin? I would say it is difficult for a spacewalker to do
this ...
Greetz sigi
Ps try out what works best ... and tell the group your results

-----Ursprüngliche Nachricht-----
Von: Work-Sat@yahoogroups.com [mailto:Work-Sat@yahoogroups.com] Im Auftrag
von John Mcfadden
Gesendet: Dienstag, 9. August 2011 17:56
An: Work-Sat@yahoogroups.com
Betreff: [Work-Sat] Question on Spin Fading and Antenna Polarization



Hi Guys,

Since I have very little experience in this field yet , I have two
questions that those of you with more experience might be able to answer.

The first one is about spin fading. Various posters over the last week
have commented on the fact that ARISSat-1 is rotating causing spin fading.
I've listened to a number of passes and definitely noticed the effect
myself. My question is, was the satellite deliberately launched spinning
for a particular reason, for example, so that the internal temperature
would be more stable, etc? If it is not rotating on purpose, based on
experience with other satellites, do any of you know how long the current
rotation is likely to continue?

My second question has to do with the differences between the Arrow and
Elk antennas. I know that people get great results with both. I have an
Arrow and when holding it during reception, twisting it definitely helps
to null out noise. Since I haven't been transmitting yet, I'm curious
about the necessity or advantage of twisting the antenna during
transmission. Maybe, it's not an issue. With the Arrow, the two antennas
are at 90 degrees to each other, so if you twist the receive antenna to
get the best reception, how does that affect the efficiency of your
transmission?

The reason I ask this is that because the Elk is a Log Periodic antenna,
during both transmission and reception, the antenna has the same
polarization. Given that the satellite has separate receiver and
transmitter antennas, if we are not using circularly polarized antennas,
are we better having two antennas with difference polarization (Arrow) or
one with the same (Elk)? Or, does any of this really matter in the grand
scheme of things?!

Thanks,

John
(hope to be able to add a callsign here by the end of this week)




Re: Question on Spin Fading and Antenna Polarization

Siegfried Jackstien
 

Rx and tx antenna are on upper and lower side of the sat
So orientation is the same
But the sat has no rx antenna (or only a part of it)
That is lowering sensitivity a bit
The antennas have the same direction (180 offF
Best would sure be to use circular polarized antennas ...
But as its signals are high enough even an omniantenna could be used for
receive (qfh, eggbeater, turnstile)
Maybe the sat has been launched with that spin for better temperature
controlling ... maybe for having safety if a solar panel is broken
... think ... it the sat would not turn (slowly) and you would loose a panel
that shows to sun ... how could the sat load his battery?
Maybe the spin is caused by the lauching? Can you push a sat away from iss
without a slight spin? I would say it is difficult for a spacewalker to do
this ...
Greetz sigi
Ps try out what works best ... and tell the group your results

-----Ursprüngliche Nachricht-----
Von: Work-Sat@yahoogroups.com [mailto:Work-Sat@yahoogroups.com] Im Auftrag
von John Mcfadden
Gesendet: Dienstag, 9. August 2011 17:56
An: Work-Sat@yahoogroups.com
Betreff: [Work-Sat] Question on Spin Fading and Antenna Polarization



Hi Guys,

Since I have very little experience in this field yet , I have two
questions that those of you with more experience might be able to answer.

The first one is about spin fading. Various posters over the last week
have commented on the fact that ARISSat-1 is rotating causing spin fading.
I've listened to a number of passes and definitely noticed the effect
myself. My question is, was the satellite deliberately launched spinning
for a particular reason, for example, so that the internal temperature
would be more stable, etc? If it is not rotating on purpose, based on
experience with other satellites, do any of you know how long the current
rotation is likely to continue?

My second question has to do with the differences between the Arrow and
Elk antennas. I know that people get great results with both. I have an
Arrow and when holding it during reception, twisting it definitely helps
to null out noise. Since I haven't been transmitting yet, I'm curious
about the necessity or advantage of twisting the antenna during
transmission. Maybe, it's not an issue. With the Arrow, the two antennas
are at 90 degrees to each other, so if you twist the receive antenna to
get the best reception, how does that affect the efficiency of your
transmission?

The reason I ask this is that because the Elk is a Log Periodic antenna,
during both transmission and reception, the antenna has the same
polarization. Given that the satellite has separate receiver and
transmitter antennas, if we are not using circularly polarized antennas,
are we better having two antennas with difference polarization (Arrow) or
one with the same (Elk)? Or, does any of this really matter in the grand
scheme of things?!

Thanks,

John
(hope to be able to add a callsign here by the end of this week)




Question on Spin Fading and Antenna Polarization

John Mcfadden <jmcf2005@...>
 

Hi Guys,

Since I have very little experience in this field yet , I have two questions that those of you with more experience might be able to answer.

The first one is about spin fading. Various posters over the last week have commented on the fact that ARISSat-1 is rotating causing spin fading. I've listened to a number of passes and definitely noticed the effect myself. My question is, was the satellite deliberately launched spinning for a particular reason, for example, so that the internal temperature would be more stable, etc? If it is not rotating on purpose, based on experience with other satellites, do any of you know how long the current rotation is likely to continue?

My second question has to do with the differences between the Arrow and Elk antennas. I know that people get great results with both. I have an Arrow and when holding it during reception, twisting it definitely helps to null out noise. Since I haven't been transmitting yet, I'm curious about the necessity or advantage of twisting the antenna during transmission. Maybe, it's not an issue. With the Arrow, the two antennas are at 90 degrees to each other, so if you twist the receive antenna to get the best reception, how does that affect the efficiency of your transmission?

The reason I ask this is that because the Elk is a Log Periodic antenna, during both transmission and reception, the antenna has the same polarization. Given that the satellite has separate receiver and transmitter antennas, if we are not using circularly polarized antennas, are we better having two antennas with difference polarization (Arrow) or one with the same (Elk)? Or, does any of this really matter in the grand scheme of things?!

Thanks,

John
(hope to be able to add a callsign here by the end of this week)


Re: ARISSat-1 BPSK-1000

Siegfried Jackstien
 

Yes ... me :-)
I used orbitron for tracking the qrg
In hdsdr I switched the dde driver to control TUNE not the LO !!!
The fcd makes coarse steps when you tune it
The sdr soft can do finer steps and with that you can be right on spot
Ok here the setup
Orbitron for tracking qrg (any tracking soft with dde link should work)
Qrg is sent to hdsdr
Hdsdr sets the lo for the fcd 10kc lower as the qrg that orbitron sent via
dde (so during a pass lo is NOT changed!!) if the qrg is not in the passband
I change it after starting to be on 145940
Hdsdr does not change it anymore so pll of fcd stays locked!
In orbitron I made a new textfile : 37772.txt
Content:
**********start of txt file******
NAME: RADIOSKAF-B (ARISSAT-1)
LAUNCHED: 2011/08/03@18:43:00 UTC
SITE: Deployed from ISS on EVA29
STATUS: Operational/NEW
DNLINK: 145.950 (FM)
DNLINK: 145.9183 (CW+BPSK1000)
DNLINK: 145.91835 (CW+BPSK1000)
DNLINK: 145.9184 (CW+BPSK1000)
Notes: ARISSAT-1 was launched without uplink antenna!
*********end of file************
(delete the lines with the stars!!)

You maybe have a bit different qrg to put in the file
So maybe you have to change tha value a bit

the goal is that you have the cw note at 500 to 650 hz
(about 550 worked best for me)

Now I routed the audio from sdr software to tlm software via virtual audio
cable ....
The tlm software locks on the cw note ... so if you have it tuned right on
spot you should also receive the data
Hope that helps
Dg9bfc
Sigi

-----Ursprüngliche Nachricht-----
Von: Work-Sat@yahoogroups.com [mailto:Work-Sat@yahoogroups.com] Im Auftrag
von kf7dur
Gesendet: Dienstag, 9. August 2011 15:44
An: Work-Sat@yahoogroups.com
Betreff: [Work-Sat] ARISSat-1 BPSK-1000



Anyone have any luck receiving the telemetry? I've had success with the FM
voice and SSTV but not with the telemetry. I have briefly heard the CW
beacon but not long enough to get tuned in to receive the data.I'm using
the ARISatTLM software, yagi antenna Az/El rotor, tracking with PCSat32,
using doppler correction, etc..

Ken
KF7DUR




ARISSat-1 BPSK-1000

W7SS
 

Anyone have any luck receiving the telemetry? I've had success with the FM voice and SSTV but not with the telemetry. I have briefly heard the CW beacon but not long enough to get tuned in to receive the data.I'm using the ARISatTLM software, yagi antenna Az/El rotor, tracking with PCSat32, using doppler correction, etc..

Ken
KF7DUR


Re: Finally received an image...

Les <kc0pto@...>
 


Dale, that is a valid one.  I have also received the one with the callsigns on the top left.  I received this one this morning.   https://picasaweb.google.com/denalidude/ARISSAT1SSTV02

Les KCoPTO

 

--- In Work-Sat@..., "Dallas Vanselow KC8HQS" wrote:
>
> I received this picture yesterday. I think it's from ARISSat. Other images I have seen have the callsign on the top left but I think I started receiving it late. Has anybody else seen this one?
>
> 73,
>
> Dale KC8HQS
>
>
>
>
>
> Sent from my BlackBerry via Cincinnati Bell Wireless.
>


Re: ARISSat-1 SSTV

Les <kc0pto@...>
 

Robert, I think a simple way to calculate the spin rate would be to measure the distance between the bars on the received SSTV picture.  SSTV has a fixed scan rate, and each bar would equal one rotation.  Crude, but easy mathematically, and math is NOT one of my strong points!  Of course, if you are lucky enough, or have a great setup with hi gain and/or cross polarized antenna, your picture may not show the bars caused by the rotation of the bird.  I've seen a few pictures posted that were very clear and noise free.

Les KC0PTO 


--- In Work-Sat@..., "RobertCGRO" wrote:
>
> Hi Les,
>
> I auto captured 3 ARISSAT/RADIOSKAF images last night. Two had the RS01S idents the other was missing it. All about about a Q3 copy and the times were 8 August 0828Z, 1006Z and 1143Z. Using Audacity to view the wav file that Scanner Recorder creates, I roughly calculated the bird's or spin rate at around 10 RPM give or take 1 but that's just from using the time marks of Audacity and marking the peaks and troughs of the audio waveform (which have a repetive period) and counting the number of those over so many seconds. I had 3 in 18 seconds so that's 1 roll in 6 seconds or 10 in 60s. I'd like to see the experts do the real math and tell me if I'm close or not. I'll continue to work out the roll rates over time and see if they change.
>
> I'm limited in my mathematical ability but I figure that charting rolls rates would be an interesting and worthwhile project. I switch to a non-circularly polarized antenna for this purpose. For SSTV/voice imaging (and APRS with the ISS (via UISS software) I'm normally using a Turnstile and 2m preamp. Anyone come up with a roll rateer figure by some other means? I just thought that the sound file method with Audacity was an obvious method with less math involved.
>
> I agree that this is way too cool. I wasn't around for Sputnik and I can't imagine what it was like in those simpler times. Since I also do astronomy, this is the best of both worlds! The Perseids are peaking August 12 and the ISS may show up in the images with some meteor trails to go with. While ARRISAT is perhaps too small to visually see, it should show up in CCD images. It's been too humid and hot to and hazy to do any imaging this summer but I'h hoping that it cools down in the next few days, at least for the Perseids.
>
> 73,
> Robert, VA3ROM
> http://my.tbyatel.net/va3rom
>
>
>
>


Satellite Presentation at the Joplin Hamfest!

Randy Schulze
 

The Joplin Hamfest at Joplin, Missouri is just three weeks away!

The KC Satellite Team of Randy – KDØHKD, Eddy – KYØF, and Jeremy – KØPDX will be there to give their popular presentation on working FM Amateur Radio Satellites at 9:00 AM, Saturday, August 27, 2011!

So come to Joplin for one of the Midwest's Largest Ham Radio Events, and while there stop in to the presentation to learn just how easy it is to work Amateur Radio Satellites!

For more information on the Joplin Hamfest, go to: http://www.joplin-arc.org/pages/hamfest.html

For more information on the KC Satellite Team's Presentation, go to: http://kd0hkd.com/satellite/index.htm


Randy – KDØHKD


ARISSat1 Keps for 08/08

K6LCS <clintbrad4d@...>
 

RADIOSKAF-B
1 37772U 98067CK 11220.42483692 .00030017 00000-0 35800-3 0 126
2 37772 051.6389 257.8070 0013414 059.0345 071.6267 15.60697248 645


Re: Finally received an image...

Siegfried Jackstien
 

You should tune in with a satcontrol soft as the sats downlink moves when
sat passes ... better receive then :-)
Dg9bfc
Sigi

-----Ursprüngliche Nachricht-----
Von: Work-Sat@yahoogroups.com [mailto:Work-Sat@yahoogroups.com] Im Auftrag
von Dallas Vanselow KC8HQS
Gesendet: Montag, 8. August 2011 19:51
An: Work-Sat@yahoogroups.com
Betreff: Re: [Work-Sat] Re: Finally received an image...



Ok! Cool. Just want to make sure it wasn't an impostor. Somebody locally
was sending SSTV on 145.95 after I received this one and I just wanted to
make sure!

I've been keeping the home radio tuned to 145.95 with the squelch all the
way open and MMSSTV up so I get every possible chance. That image was
received via a mobile magnet mount antenna in the attic!

73,

Dale KC8HQS






Sent from my BlackBerry via Cincinnati Bell Wireless.

________________________________

From: "K6LCS" <clintbrad4d@earthlink.net>
Sender: Work-Sat@yahoogroups.com
Date: Mon, 08 Aug 2011 19:43:39 -0000
To: <Work-Sat@yahoogroups.com>
ReplyTo: Work-Sat@yahoogroups.com
Subject: [Work-Sat] Re: Finally received an image...



... Has anybody else seen this one?
Absolutely! It is the one I have printed and have right behind me on my
backdrop ...

Clint



4801 - 4820 of 6578