Date   

Re: SO-50 Question

nanina@...
 

Hi Clint, and thank you for your reply!

Yes, I have programmed the radio with those frequencies. I don't know if it's possibly an issue with the terrain in this area? That may be a dumb question or idea, but the fact that KC8HQS and myself have the SAME issue is odd. We live within 20 miles of each other, and it just seems kind of odd.

We are both able to follow the pass for about 85-90% on the mid-pass freq.

Not a problem for us, just trying to make some sense of it, that's all.

Thanks again Clint!

73,
Nathan KA3MTT

--- In Work-Sat@yahoogroups.com, "K6LCS" <clintbrad4d@...> wrote:

We are able to work it just fine if we are on the primary downlink frequency, but not the shift freqs. Any others have this issue?

Did you program your radio per my chart? '50 is a little off-frequency - so you need to program it a little differently than, say, AO-51.

Don't know if this will turn out formatted OK - same chart as is available on the http://www.work-sat.com Web site.

Ch # Name TX Freq CTCSS RX Freq CTCSS
201 50 +4 145.850 67.0 436.815 None
202 50 +3 145.850 67.0 436.810 None
203 50 +2 145.850 67.0 436.805 None
204 50 +1 145.850 67.0 436.800 None
205 50 74 145.850 74.4 436.795 None
206 50 MID 145.850 67.0 436.795 None
207 50 -1 145.850 67.0 436.790 None
208 50 -2 145.850 67.0 436.785 None
209 50 -3 145.850 67.0 436.780 None

Clint


Re: ARISSAT1 TELEMENTRY

Siegfried Jackstien
 

You will need more gain on the antenna i think
I have a stacked vertical (x510) ... with that I am just at the decode
margin ... and that with a sensitive sdr radio (funcubedongle)
I think with a small beam you would have better luck
Or you have to have a very close pass ... but then your j-pole will have a
receiving hole upwards ...
I made a second antenna for high passes (qfh) ... on high passes the qfh is
better (and on some passes were the sat has more horizontal then vertical
polarization) ...
If you have a strong cw signal and you also can hear the bpsk signal very
good ... then the decoding should work ...
If you have your antenna system so that you can receive and decode
"something" then I would recommend a cat connection to pc and qrg tracking

For decoding lots of frames in a pass the cw note has to be rocksteady or
make only very slight and slowly movements ... so compensating Doppler is a
"must have" to be able to decode 30-40 frames in a pass
But even compensating the Doppler by hand should give you some frames if you
receive the signal "decode-able"
Greetz
Sigi
Dg9bfc

-----Ursprüngliche Nachricht-----
Von: Work-Sat@yahoogroups.com [mailto:Work-Sat@yahoogroups.com] Im Auftrag
von fejohnso
Gesendet: Freitag, 2. September 2011 00:19
An: Work-Sat@yahoogroups.com
Betreff: [Work-Sat] ARISSAT1 TELEMENTRY



I am using a IC746Pro and an Arrow J-pole mounted on the roof. I have been
able to receive the SSTV pictures but cannot seem to get the Telementry
signal. I have the program all set up and I tune to 145.919 and listen for
the CW signal and then try to tune it so that I get it on the line -
Yellow= but nothing seems to work. I have the receiver set to USB. What
else do I need to do?

Forrest, KC9JFX




Re: ARISSAT1 TELEMENTRY

K6LCS <clintbrad4d@...>
 

Isn't that a 100mW transmission? And with a hardly-any-gain-at-all J-Pole .... Well, I wouldn't try that combination.

Here's the stuff from the ARISSat-1 page on receiving the telemetry - you probably already know this ...

How To Receive the ARISSat-1/KEDR BPSK-1000 Telemetry

The BPSK transmission from ARISSat-1/KEDR will feature a new 1kBPSK protocol developed by Phil Karn, KA9Q to be readable in low signal level conditions. The BPSK data will transmit satellite telemetry and data from the Kursk experiment.

You'll need to take a few steps to get your station set up to receive, decode, and display the BPSK-1000 telemetry data:

You need a 2 meter SSB receiver.

An audio patch cable between your receiver and computer's soundcard is required.

Download the ARISSatTLM ground station soundcard demodulator and display software. Windows and Mac versions are available.

http://www.arissattlm.org/

Follow the instructions in the ARISSatTLM Software Quick Start Guide to install the software.

http://www.amsat.org/amsat-new/images/fck_images/ARISSatTLM-QuickStart%281%29.pdf

The ARISSatTLM software can decode BPSK signals in two modes:

Playback and decode a recorded file (even if you do not have a 2 meter SSB receiver you can experiment with the software and test file to learn about telemetry decoding and display!)
Live, off-the-air capture


Playback and Decode a Recorded File

ARISSatTLM requires the recorded data to be in the WAV format. Compression formats such as MP3 are not suitable and will not decode and display correctly. Although .WAV files are notably large, usually several megabytes, they capture all of the bits of the signal. Compressed file formats sound OK to the human ear but save file space by eliminating bits from the recorded stream. You need to capture and record as many of the downlink bits as possible. An occasional noise burst or momentary fade is handled by the Forward Error Correction capability of the ARISSatTLM software.


Download the BPSK Test File

A link to a BPSK test file suitable for operation with the current release of ARISSatTLM software will be released soon to http://www.arissattlm.org.

NOTE: Some earlier BPSK test recordings that are on the internet will not work with the currently released software because they were created with earlier versions of the satellite's onboard software (the satellite software and ARISSatTLM are a "matched pair").

Start the ARISSatTLM program on your computer.

Click the start button in the lower left of the Tuning Indicator window.

In the ARISSatTLM Version 0.50 Window select: File --> Open WAVE file. Select the ARISSatTLM test file you previously downloaded.

The Tuning Indicator window will show the "CW Bump" at proper location (note the "Put CW signal here" indicator).

The Morse Code Decoder will decode and stream the CW message.

The ARISSatTLM Telemetry as Text window will decode and display data.

The ARISSatTLM window will display the received data as received.

The display will stop when the end of file is reached.


Live Off The Air Telemetry Capture and Display

The ARISSat-1 BPSK-1000 downlink is transmitted in SSB mode on 145.920 MHz. When the CW2 beacon on 145.919 MHz is active this indicates that the BPSK-1000 format is being transmitted. If the CW1 beacon on 145.939 MHz is active this indicates the backup of BPSK-400 format is being transmitted.

Transmitting at 100 mW, both BPSK rates include Forward Error Correction (FEC) and it is expected that modest quarter-wave antennas with low-loss coaxial cable will provide sufficient signal strength for decoding and display by the ARISSatTLM software.

BPSK-1000 sounds like a "shusssch" with a higher pitch than the 400 bps growl. It is difficult to tune by ear. The BPSK beacon is centered 1 kHz above the CW2 beacon so that the CW beacon sits in the lower spectral null of the BPSK signal, i.e., in a narrow spot where there's no BPSK signal power.

If you put your receiver in USB mode and tune the CW beacon so it comes out at an audio frequency of 500 Hz, this will automatically center the BPSK signal in a conventional SSB filter extending from 300-2700 Hz. The Tuning Indicator window helps you tune the signal correctly.

Follow the recommendations in the ARISSatTLM Quick Start Guide for tuning and decoding the BPSK telemetry data. Once you are tuned in correctly (and adjust for doppler shift) you will be able to decode the BPSK-1000 signal. You will also be able to copy the CW2 beacon text in the Morse Code Decoder window.

AMSAT needs your telemetry from ARISSat-1/KEDR. Since there are no "Whole Orbit Data" storage mechanisms onboard ARISSat-1/KEDR, your submissions are the only way for AMSAT to collect the spacecraft telemetry and KURSK experiment results.

The telemetry may be recorded using the FunCube dongle or SDR-IQ receivers. After decoding the recorded file ARISSat-1/KEDR and Kursk telemetry CSV files (in the ARISSatTLM folder) can be sent as an e-mail attachment to telemetry@arissattlm.org
If you are running ARISSatTLM and receiving the signal "live" from ARISSat-1/KEDR, please enable the telemetry forwarding option.

/end/


ARISSAT1 TELEMENTRY

fejohnso
 

I am using a IC746Pro and an Arrow J-pole mounted on the roof. I have been able to receive the SSTV pictures but cannot seem to get the Telementry signal. I have the program all set up and I tune to 145.919 and listen for the CW signal and then try to tune it so that I get it on the line -Yellow= but nothing seems to work. I have the receiver set to USB. What else do I need to do?

Forrest, KC9JFX


Russian Statement on Launch Failures

K6LCS <clintbrad4d@...>
 

Spaceflight Now
Breaking News
Russia determines causes of back-to-back launch failures:
http://bit.ly/qMi4mt

Clint


Re: SO-50 Question

K6LCS <clintbrad4d@...>
 

We are able to work it just fine if we are on the primary downlink frequency, but not the shift freqs. Any others have this issue?

Did you program your radio per my chart? '50 is a little off-frequency - so you need to program it a little differently than, say, AO-51.

Don't know if this will turn out formatted OK - same chart as is available on the http://www.work-sat.com Web site.

Ch # Name TX Freq CTCSS RX Freq CTCSS
201 50 +4 145.850 67.0 436.815 None
202 50 +3 145.850 67.0 436.810 None
203 50 +2 145.850 67.0 436.805 None
204 50 +1 145.850 67.0 436.800 None
205 50 74 145.850 74.4 436.795 None
206 50 MID 145.850 67.0 436.795 None
207 50 -1 145.850 67.0 436.790 None
208 50 -2 145.850 67.0 436.785 None
209 50 -3 145.850 67.0 436.780 None

Clint


SO-50 Question

nanina@...
 

I have an odd (maybe dumb) question about working SO-50. Myself and a friend of mine have both noticed that we can't seem to work SO-50 as well if we are compensating for doppler shift.

We are able to work it just fine if we are on the primary downlink frequency, but not the shift freqs. Any others have this issue?

Thanks and 73,
Nathan KA3MTT


Re: Finally got it!

sciencemc@...
 

Thanks! That previous post made me wonder if I was screwing up. :)

I caught another pass today, got 2 English secret words and 1 in German!

Fun, fun, fun.

Mike NX7E

--- In Work-Sat@yahoogroups.com, "K6LCS" <clintbrad4d@...> wrote:

... I got one secret word. Something wrong with that?
Not at all!

Now send an email message containing the secret word/password, your name or group, date/time received,city, state, country and your email address to ...

secretword@...

... to receive a certificate.

Clint


Re: Home Depot Satellite Antenna Tripod

John Mcfadden <jmcf2005@...>
 

Looking at the photos, it looks like you tilt the lamps using the handles on top and they hinge at the bottom. I can't quiet picture this setup with an arrow attached but would be interested to see what has been done with it.

--- In Work-Sat@yahoogroups.com, KI6AOK <ki6aok@...> wrote:

Lowe's also carries a similar product, a little cheaper.

Still can't figure out how to make elevation work using this tripod. There has got to be a piece of PVC....or a fitting or something that would do it....

- Laura

On Aug 29, 2011, at 6:35 PM, "K6LCS" <clintbrad4d@...> wrote:

Couldn't get to the actual product at Home Depot ... but here's a couple shots of their ...

Designers Edge 1200 Watt Halogen Power Light W/Sled Base
Model # L-19 Internet # 202765257
$69.96 /EA-Each

http://tinyurl.com/sat-ant-tripod

... or ...

http://www.flickr.com/x/t/0090009/photos/k6lcs/sets/72157627426087021/

Clint


Re: Home Depot Satellite Antenna Tripod

KI6AOK <ki6aok@...>
 

Lowe's also carries a similar product, a little cheaper.

Still can't figure out how to make elevation work using this tripod. There has got to be a piece of PVC....or a fitting or something that would do it....

- Laura

On Aug 29, 2011, at 6:35 PM, "K6LCS" <clintbrad4d@...> wrote:

 

Couldn't get to the actual product at Home Depot ... but here's a couple shots of their ...

Designers Edge 1200 Watt Halogen Power Light W/Sled Base
Model # L-19 Internet # 202765257
$69.96 /EA-Each

http://tinyurl.com/sat-ant-tripod

... or ...

http://www.flickr.com/x/t/0090009/photos/k6lcs/sets/72157627426087021/

Clint


Home Depot Satellite Antenna Tripod

K6LCS <clintbrad4d@...>
 

Couldn't get to the actual product at Home Depot ... but here's a couple shots of their ...

Designers Edge 1200 Watt Halogen Power Light W/Sled Base
Model # L-19 Internet # 202765257
$69.96 /EA-Each

http://tinyurl.com/sat-ant-tripod

... or ...

http://www.flickr.com/x/t/0090009/photos/k6lcs/sets/72157627426087021/

Clint


Re: Finally got it!

John K5JRW
 

My bad

That would be a Boo Boo Beam.

K5JRW John

--- In Work-Sat@yahoogroups.com, John Wilson <jrrebel73@...> wrote:

Ha would that make a phased yagi  a Bo Bo  beam.

73 John K5JRW



________________________________
From: K6LCS <clintbrad4d@...>
To: Work-Sat@yahoogroups.com
Sent: Sunday, August 28, 2011 10:36 PM
Subject: [Work-Sat] Re: Finally got it!


 
"Yogi beam" = "better than the average beam ... "

Clint

P.S. - Don;t you DARE apologize for minor typos here ... They are what I call "Clint-isms" - 'cause if anyone has made similar errors, it is me ...

(grin)

--- In Work-Sat@yahoogroups.com, sciencemc@ wrote:

I'm really excited! I built a tape measure yogi last month ...


Re: Finally got it!

John K5JRW
 

Ha would that make a phased yagi  a Bo Bo  beam.

73 John K5JRW


From: K6LCS
To: Work-Sat@...
Sent: Sunday, August 28, 2011 10:36 PM
Subject: [Work-Sat] Re: Finally got it!

 
"Yogi beam" = "better than the average beam ... "

Clint

P.S. - Don;t you DARE apologize for minor typos here ... They are what I call "Clint-isms" - 'cause if anyone has made similar errors, it is me ...

(grin)

--- In Work-Sat@..., sciencemc@... wrote:
>
> I'm really excited! I built a tape measure yogi last month ...




Re: Finally got it!

Siegfried Jackstien
 

No everythin is fine :-)
Gretz
Sigi

-----Ursprüngliche Nachricht-----
Von: Work-Sat@yahoogroups.com [mailto:Work-Sat@yahoogroups.com] Im Auftrag
von Michael Cummings
Gesendet: Montag, 29. August 2011 16:31
An: Work-Sat@yahoogroups.com
Betreff: Re: AW: [Work-Sat] Finally got it!



One in one pass in English. I heard another last night on a later pass.
I'm pretty sure I heard one in Japanese, but I'm not sure I got it right.
So yes, on my very first pass, I got one secret word. Something wrong with
that?

Mike Cummings NX7E


On Aug 29, 2011, at 1:50 AM, "Siegfried Jackstien"
<siegfried.jackstien@freenet.de> wrote:





Only ONE secret word??? I have lots of them (still collecting) ...
I make recordings of every pass if possible and see what I can do
with the
recording and some audio software (noise reduction etc.)
Good luck in receiving more of them .... and don’t forget to start
your sstv
software!! I received some very nice pictures from arissat from the
built-in
cameras
Greetz
Sigi
Dg9bfc

> -----Ursprüngliche Nachricht-----
> Von: <mailto:Work-Sat%40yahoogroups.com> Work-Sat@yahoogroups.com
[mailto: <mailto:Work-Sat%40yahoogroups.com> Work-Sat@yahoogroups.com] Im
Auftrag
> von <mailto:sciencemc%40gmail.com> sciencemc@gmail.com
> Gesendet: Montag, 29. August 2011 00:52
> An: <mailto:Work-Sat%40yahoogroups.com> Work-Sat@yahoogroups.com
> Betreff: [Work-Sat] Finally got it!
>
>
>
> I'm really excited! I built a tape measure yogi last month, and
for
> whatever reason, haven't had any luck with ARISSat-1. But I just
got a
> clear, beautiful signal over Seattle, WA. Even got the secret
word! We
> have a pass peaking at 84 degrees in 3 hours. Can't wait!
>
> Impressed the neighbor, too!
>
> -Mike
> NX7E
>
>
>
>




Re: Future Quarterback?

Siegfried Jackstien
 

I guss 1m/sec is not very fast .... it is 2 miles per hour ... so not
throwing fast ... it was a slight push ... not more
Dg9bfc
Sigi

-----Ursprüngliche Nachricht-----
Von: Work-Sat@yahoogroups.com [mailto:Work-Sat@yahoogroups.com] Im Auftrag
von Ken Alexander
Gesendet: Montag, 29. August 2011 19:59
An: Work-Sat@yahoogroups.com
Betreff: Re: AW: [Work-Sat] Re: Future Quarterback?



Still, that's a pretty good throwing arm...especially when you're wearing
a space suit!

Ken


--- On Mon, 8/29/11, Siegfried Jackstien <siegfried.jackstien@freenet.de>
wrote:



From: Siegfried Jackstien <siegfried.jackstien@freenet.de>
Subject: AW: [Work-Sat] Re: Future Quarterback?
To: Work-Sat@yahoogroups.com
Date: Monday, August 29, 2011, 4:44 AM



Yes it was pushed in flight direction of iss with a speed of abt
1m/sec...
Do the math 3600 (sec) x 24 (hours) x 26 (days) = 2246400 m or
2246km
distance ... easy as baking cakes :-)
Dg9bfc
Sigi

> -----Ursprüngliche Nachricht-----
> Von: Work-Sat@yahoogroups.com
<http://ca.mc886.mail.yahoo.com/mc/compose?to=Work-Sat%40yahoogroups.com>
[mailto:Work-Sat@yahoogroups.com
<http://ca.mc886.mail.yahoo.com/mc/compose?to=Work-Sat%40yahoogroups.com>
] Im Auftrag
> von K6LCS
> Gesendet: Montag, 29. August 2011 03:40
> An: Work-Sat@yahoogroups.com
<http://ca.mc886.mail.yahoo.com/mc/compose?to=Work-Sat%40yahoogroups.com>
> Betreff: [Work-Sat] Re: Future Quarterback?
>
>
>
> > What I do find unusual is that it now appears to be a few
thousand miles
> > AHEAD of the ISS in the same orbit.
>
> Ken - it was PUSHED out ... add that to the fact that it weighs a
little
> less than the ISS (grin), then you have a differing orbit.
>
> Take a look at the tech docs on the ARISSAT1.org Web site - I
think you'll
> find the technical explanation there.
>
> Clint
>
>
>
>




Re: Future Quarterback?

Ken Alexander <k.alexander@...>
 

Still, that's a pretty good throwing arm...especially when you're wearing a space suit!
 
Ken


--- On Mon, 8/29/11, Siegfried Jackstien <siegfried.jackstien@...> wrote:

From: Siegfried Jackstien Subject: AW: [Work-Sat] Re: Future Quarterback?
To: Work-Sat@...
Date: Monday, August 29, 2011, 4:44 AM

 
Yes it was pushed in flight direction of iss with a speed of abt 1m/sec...
Do the math 3600 (sec) x 24 (hours) x 26 (days) = 2246400 m or 2246km
distance ... easy as baking cakes :-)
Dg9bfc
Sigi

> -----Ursprüngliche Nachricht-----
> Von: Work-Sat@... [mailto:Work-Sat@...] Im Auftrag
> von K6LCS
> Gesendet: Montag, 29. August 2011 03:40
> An: Work-Sat@...
> Betreff: [Work-Sat] Re: Future Quarterback?
>
>
>
> > What I do find unusual is that it now appears to be a few thousand miles
> > AHEAD of the ISS in the same orbit.
>
> Ken - it was PUSHED out ... add that to the fact that it weighs a little
> less than the ISS (grin), then you have a differing orbit.
>
> Take a look at the tech docs on the ARISSAT1.org Web site - I think you'll
> find the technical explanation there.
>
> Clint
>
>
>
>


Re: ARISSat-1 certificates

KI6AOK <ki6aok@...>
 

Funny you should mention Home Depot work light. I actually have one and was using the tripod part for holding an antenna mast topped by a J-pole. Unfortunately, only works in less than windy conditions : ) Yes, please send any pics of the modified stand. I can definitely try that.

I've only been a ham since 2005, but I can't believe that it took me this long to find out I could work the birds. I thought it was way too technical and out of reach. Now I'm going to be presenting info on ham sats to my local club (and referring them to your website, of course!) Again, thanks!

-- Laura

On 8/29/2011 11:08 AM, K6LCS wrote:
 

> Thanks, Clint. I feel better now : )

Personally, I would think that by handling the .pdf certificate requests as they arrived would be less of a headache ... maybe they were just inundated!

> ... By the way, thanks for your awesome web page! I've been working AO-51
> successfully thanks to your tutorial.

You mean, it WORKS? (grin) I am still having a blast working the FM birds, and telling the world about them ...

>> ... Just bought an Elk and I'm working on retrofitting a telescope tripod.

If you don;t already have that tripod, a friend just sent me a photo of how he "modified" the stand that comes with a Home Depot outdoor work light setup ... Looks really cool - and not as expensive as a quality photographic tripod. Let me know - I'll email you that photo.

>> ... See what you started?

Uh - if that is a complaint, then I'll forward my attorney's contact info to you. But if a compliment - then THANK YOU! (grin)

Clint
909-241-7666


--



__________________________________

SAN MARCOS AMATEUR RADIO CLUB
            SAN MARCOS CERT



Home Depot Sat Antenna Tripod

K6LCS <clintbrad4d@...>
 

Here is a Home Depot URL to the $70 twin-head outdoor work lamp ...

http://tinyurl.com/SAT-TRIPOD

That cross-member with the two lamps screws on to the tripod ... Meaning "we" can leave it off entirely to play with ...

I am heading over to Home Depot a little later to take a couple measurements and possibly photos. I am speaking to a club in Sonoma, CA next week ... and that contact - Charlie Sikes KZ6T - turned me on to this tripod.

Clint


Re: ARISSat-1 certificates

John Mcfadden <jmcf2005@...>
 

Hey Clint,

Any possibility of you uploading that photo of the "modified" Home Depot outdoor work light setup to the Photos page so we can all see it?

Thanks!

John

--- In Work-Sat@yahoogroups.com, "K6LCS" <clintbrad4d@...> wrote:

Thanks, Clint. I feel better now : )
Personally, I would think that by handling the .pdf certificate requests as they arrived would be less of a headache ... maybe they were just inundated!

... By the way, thanks for your awesome web page! I've been working AO-51
successfully thanks to your tutorial.

You mean, it WORKS? (grin) I am still having a blast working the FM birds, and telling the world about them ...

... Just bought an Elk and I'm working on retrofitting a telescope tripod.
If you don;t already have that tripod, a friend just sent me a photo of how he "modified" the stand that comes with a Home Depot outdoor work light setup ... Looks really cool - and not as expensive as a quality photographic tripod. Let me know - I'll email you that photo.

... See what you started?
Uh - if that is a complaint, then I'll forward my attorney's contact info to you. But if a compliment - then THANK YOU! (grin)

Clint
909-241-7666


Re: ARISSat-1 certificates

K6LCS <clintbrad4d@...>
 

Thanks, Clint. I feel better now : )
Personally, I would think that by handling the .pdf certificate requests as they arrived would be less of a headache ... maybe they were just inundated!

... By the way, thanks for your awesome web page! I've been working AO-51
successfully thanks to your tutorial.

You mean, it WORKS? (grin) I am still having a blast working the FM birds, and telling the world about them ...

... Just bought an Elk and I'm working on retrofitting a telescope tripod.
If you don;t already have that tripod, a friend just sent me a photo of how he "modified" the stand that comes with a Home Depot outdoor work light setup ... Looks really cool - and not as expensive as a quality photographic tripod. Let me know - I'll email you that photo.

... See what you started?
Uh - if that is a complaint, then I'll forward my attorney's contact info to you. But if a compliment - then THANK YOU! (grin)

Clint
909-241-7666

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