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CX2SA > SATDIG 07.06.09 21:47l 876 Lines 27802 Bytes #999 (0) @ WW
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To : SATDIG@WW
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Today's Topics:
1. Re: RS12/13 Merry Christmas / HNY Message (Tony)
2. unknown packet signal (David J)
3. Re: unknown packet signal (Mike Rupprecht)
4. unknown packet signal information (David J)
5. Re: unknown packet signal information (David - KG4ZLB)
6. Re: Homebrew Log Periodic for 2 Meters (Stephen E. Belter)
7. ANS-158 AMSAT News Service Weekly Bulletins (JoAnne Maenpaa)
8. Re: HF satellite? (David Giles)
9. Re: unknown packet signal information (David Barber)
10. NORAD TLE file from several GPS positions of a satellite (SALAH)
11. ... talking HF satellites: RS-15 is still transmitting !
(Henk, PA3GUO)
12. Re: ... talking HF satellites: RS-15 is still transmitting !
(G0MRF@xxx.xxxx
13. Re: HF satellite? (George Henry)
14. CP-6 Decode (James Denneny)
----------------------------------------------------------------------
Message: 1
Date: Sat, 06 Jun 2009 16:00:11 -0400
From: Tony <dxdx@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: RS12/13 Merry Christmas / HNY Message
To: amsat-bb@xxxxx.xxx
Message-ID: <E7C3DD8030A440009D65DFAACB6C7285@xxxxxx>
Content-Type: text/plain; format=flowed; charset=iso-8859-1;
reply-type=response
James,
> I don't think the errors are errors at all, but the result of
> translating cyrillic spelling
I thought it might have something to do with translation.
> If I remember correctly, R3X was the robot on board.
Thanks for the info James...
Tony -K2MO
----- Original Message -----
From: "James Duffey" <jamesduffey@xxxxxxx.xxx>
------------------------------
Message: 2
Date: Sat, 6 Jun 2009 17:04:08 -0400
From: "David J" <n4csitwo@xxxxxxxxx.xxx>
Subject: [amsat-bb] unknown packet signal
To: <amsat-bb@xxxxx.xxx>
Message-ID: <F4B51678F0FF4A63A0AC1B17A0E42A27@xxx>
Content-Type: text/plain; charset="iso-8859-1"
I'm in Orlando, Florida. Can someone let me know which satellite I just
received around 20:54 UTC on 145.825 MHz running packet?
Dave, AA4KN
------------------------------
Message: 3
Date: Sat, 6 Jun 2009 23:12:36 +0200
From: "Mike Rupprecht" <mail@xxxxxxxxxxxxxx.xx>
Subject: [amsat-bb] Re: unknown packet signal
To: "'David J'" <n4csitwo@xxxxxxxxx.xxx>, <amsat-bb@xxxxx.xxx>
Message-ID: <000f01c9e6eb$848a9ef0$8d9fdcd0$@xx>
Content-Type: text/plain; charset="iso-8859-1"
Hi Dave,
... it was NO-44 (PCSat-1).
73, Mike
DK3WN
-----Urspr?ngliche Nachricht-----
Von: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx Im
Auftrag von David J
Gesendet: Samstag, 6. Juni 2009 23:04
An: amsat-bb@xxxxx.xxx
Betreff: [amsat-bb] unknown packet signal
I'm in Orlando, Florida. Can someone let me know which satellite I just
received around 20:54 UTC on 145.825 MHz running packet?
Dave, AA4KN
_______________________________________________
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!
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------------------------------
Message: 4
Date: Sat, 6 Jun 2009 17:18:03 -0400
From: "David J" <n4csitwo@xxxxxxxxx.xxx>
Subject: [amsat-bb] unknown packet signal information
To: <amsat-bb@xxxxx.xxx>
Message-ID: <D2FC92345529430998337C445C936C02@xxx>
Content-Type: text/plain; charset="iso-8859-1"
Tim and Mike,
Thanks for letting me know it was NO-44. I wasn't tracking it nor setup to
demodulate the mode either.
Dave
------------------------------
Message: 5
Date: Sat, 06 Jun 2009 18:00:03 -0400
From: David - KG4ZLB <kg4zlb@xxxxxxxxxx.xxx>
Subject: [amsat-bb] Re: unknown packet signal information
Cc: amsat-bb@xxxxx.xxx
Message-ID: <4A2AE6E3.30506@xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Is NO-44 (PCSAT) working again then?
David
--
David
KG4ZLB
www.kg4zlb.com
David J wrote:
> Tim and Mike,
> Thanks for letting me know it was NO-44. I wasn't tracking it nor setup
to demodulate the mode either.
>
> Dave
> _______________________________________________
> 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: Sat, 6 Jun 2009 19:00:46 -0400
From: "Stephen E. Belter" <seb@xxxxxx.xxx>
Subject: [amsat-bb] Re: Homebrew Log Periodic for 2 Meters
To: <amsat-bb@xxxxx.xxx>
Message-ID:
<8ED39133476A654C81FA40FFE55E0D30EAA2AE@xxxxxxxx.xxxxxx.xxxxx>
Content-Type: text/plain; charset="us-ascii"
> There was a question recently about homebrewing an Elk type antenna.
> For those interested, the October 2001 QST had an article for
> homebrewing a 6 element 2 meter log periodic antenna by L. B. Cebik.
> If you are an ARRL member, you can get the article from their web
> site. Although not mentioned in the article, it should also work on
> 432 MHz on the third harmonic, but no performance figures are given.
> -- Euffey
I had a brief conversation with Kent, WA5VJB, at Dayton this year. Our
discussion turned to log periodic antennas and operation at the 3rd
harmonic. Kent said that the elements need to be "swept" forward in a
herringbone pattern for proper operation on the 3rd harmonic.
For an example, look at a standard VHF television (log periodic)
antenna. The elements of the antenna are quarter-wave for channels 2
through 6, and three-quarter wave on channels 7 through 13. Rather than
being perpendicular to the boom, the elements are swept forward.
Steve, N9IP
------------------------------
Message: 7
Date: Sat, 6 Jun 2009 20:22:39 -0500
From: "JoAnne Maenpaa" <k9jkm@xxxxxxx.xxx>
Subject: [amsat-bb] ANS-158 AMSAT News Service Weekly Bulletins
To: <amsat-bb@xxxxx.xxx>
Message-ID: <001401c9e70e$734c52f0$59e4f8d0$@xxx>
Content-Type: text/plain; charset="iso-8859-1"
AMSAT NEWS SERVICE
ANS-158
ANS is a free, weekly, news and information service of AMSAT North
America, The Radio Amateur Satellite Corporation. ANS reports on the
activities of a worldwide group of Amateur Radio operators who share an
active interest in designing, building, launching and communicating
through analog and digital Amateur Radio satellites.
Please send any amateur satellite news or reports to:
ans-editor@xxxxx.xxx
**********************************************************************
* 2009 AMSAT Space Symposium and Annual General Meeting October 9-11 *
* Four Points Sheraton Hotel at the Baltimore Washington Airport *
* Details - http://www.amsat.org/amsat-new/symposium/2009/index.php *
**********************************************************************
In this edition:
* Call for Nominations AMSAT Board of Directors
* 2009 AMSAT Annual Meeting and Space Symposium - Call for papers
* New Members Welcomed to AO-51 Operations Committee
* AMSAT Awards
* Hotel Booking Details for AMSAT-UK Space Colloquium July 25-26
* COMPASS Satellite Team Releases New Commands for Amateur Radio
* Satellite Shorts From All Over
SB SAT @ AMSAT $ANS-158.01
Call for Nominations AMSAT Board of Directors
AMSAT News Service Bulletin 158.01
>From AMSAT HQ SILVER SPRING, MD.
June 7, 2009
To All RADIO AMATEURS
BID: $ANS-158.01
Pursuant to AMSAT-NA Bylaws, ARTICLE III Meetings and Election of
Directors; Section 2:
http://www.amsat.org/amsat-new/AboutAmsat/documents/bylaws.php
Written nominations of Members for the position of Director, which
nominees shall have agreed to serve if elected, shall be received
by the Secretary on or before June 15 of each year.
The deadline for nominations for the 2009 AMSAT Board of Directors
elections to be received at the AMSAT office is no later than
June 15, 2009. A nomination requires either one AMSAT Member Society
or five current AMSAT members. A director serves 2 years.
Nominations must be in writing and send via regular mail to: AMSAT,
850 Sligo Ave #600, Silver Spring, MD 20910. E-mail nominations
cannot be accepted.
The seats on the Board that are up for election include, Rick Hambly,
W2GPS; Barry Baines, WD4ASW; Drew Glasbrenner, KO4MA; and Gunther
Meisse, W8GSM.
The AMSAT Office reports at press time, the following people have
been nominated: Anthony Monteiro, AA2TX; Bill Ress, N6GHZ; Barry
Baines, WD4ASW; Drew Glasbrenner, KO4MA; Alan Biddle, WA4SCA.
Gunther Meisse, W8GSM has advised the Board that he will not run
for another term. Gunther said, "With the increased pressure of my
day job and the economic pressures that are present for the public
media, I need to spend 110% of my time with the family's Radio and
Television stations. I have enjoyed the wonderful time with the
brilliant brain trust within AMSAT, but business calls. It is my
hope that the membership will elect new, young, innovative thinkers
to the BoD. AMSAT, just like my industry, is changing and we need
new thinkers to deal with the new realities. I send my special thank
you to all the members who have supported my ideas over the last few
years. It has been fun and educational. Never stop seeking out new
things to learn!" Rick Hambly, W2GPS also will not seek re-election
to the Board this year.
[ANS thanks the AMSAT Board of Directors for the above information]
/EX
SB SAT @ AMSAT $ANS-158.02
2009 AMSAT Annual Meeting and Space Symposium - Call for papers
AMSAT News Service Bulletin 158.02
>From AMSAT HQ SILVER SPRING, MD.
June 7, 2009
To All RADIO AMATEURS
BID: $ANS-158.02
This is the first call for papers for the 2009 AMSAT Annual Meeting and
Space Symposium to be held October 9 - 11 at the Four Points Sheraton
Hotel at the Baltimore Washington Airport.
Proposals for papers, symposium presentations and poster presentations
are invited on any topic of interest to the amateur satellite community.
We request a tentative title of your presentation as soon as possible,
with final copy submitted by September 1, 2009 for inclusion in the
printed proceedings.
Abstracts and papers should be sent to Dan Schultz, N8FGV, at
n8fgv@xxxxx.xxx.
[ANS thanks Dan, N8FGV for the above information]
/EX
SB SAT @ AMSAT $ANS-158.03
New Members Welcomed to AO-51 Operations Committee
AMSAT News Service Bulletin 158.03
>From AMSAT HQ SILVER SPRING, MD.
June 7, 2009
To All RADIO AMATEURS
BID: $ANS-158.03
AMSAT VP Operations, Drew KO4MA announced, "I'm proud to welcome
Doug Papay, KD8CAO and Ed Clayo, N8BBQ to the AO-51 Operations Com-
mittee. Doug and Ed are both consummate AO-51 operators, and have
supported past AMSAT special events."
Drew continued, "The response for our call for volunteers last month
was outstanding and I want to thank all of those who applied, and
encourage them to continue to support AMSAT by volunteering in some
way."
The Operations Committee also welcomed Mark Hammond, N8MH aboard
joining the AO-51 command team now that AO-16 operations are on
hiatus until the next period of increased illumination. Drew noted,
"As AO-51 approaches 5 years in orbit this month, the satellite is
becoming more demanding of our control team and Mark will be a fine
addition to the team."
[ANS thanks Drew, KO4MA for the above information]
/EX
SB SAT @ AMSAT $ANS-158.04
AMSAT Awards
AMSAT News Service Bulletin 158.04
>From AMSAT HQ SILVER SPRING, MD.
June 7, 2009
To All RADIO AMATEURS
BID: $ANS-158.04
AMSAT Director Contests and Awards Bruce, KK5DO says
congratulations are in order for the amateur radio
operators on his AMSAT Awards list.
We would like to welcome the following to the Satellite
Communicators Club for making their first satellite contact.
Michael Klomfass, DH5MK
Michael McMahan, KC9NXP
Steve Rish, K8SAR
The following have earned the AMSAT Satellite Sexagesimal
Communications Award:
John Papay, K8YSE, #148
Michael Klomfass, DH5MK, #149
Bruce also noted that the he AMSAT Satellite Communications
Achievement Award is approaching certificate #500. Bruce
predicted that someone may possibly reach this milestone in
the next week or two. If you have not sent in for this award
yet, now is the time to do it.
To see all the awards visit http://www.amsat.org.
[ANS thanks Bruce, KK5DO for the above information]
/EX
SB SAT @ AMSAT $ANS-158.05
Hotel Booking Details for AMSAT-UK Space Colloquium July 25-26
AMSAT News Service Bulletin 158.05
>From AMSAT HQ SILVER SPRING, MD.
June 7, 2009
To All RADIO AMATEURS
BID: $ANS-158.05
As you may have heard, the location of the AMSAT-UK Colloquium
(25/26 July 2009) has been switched from Manchester to Guildford.
This is to ensure the best possible event for the largest number
of visitors. The venue has been changed to the Holiday Inn Hotel
at Guildford - this is very close to the Surrey University where
the event has been held previously. It is just off the Cathedral
roundabout on the A3.
The 2009 AMSAT Colloquium will now commence at 10am on Saturday
July 25th and close at approximately 4.30 pm on the Sunday.
The new venue will enable visitors to attend at a significantly
lower cost than last year and experience greatly improved accommo-
dation. The two days will be filled with presentations covering
all the latest amateur satellite happenings and developments.
The new GB4FUN trailer will also be in attendance and available
to demonstrate satellite operations.
An informal social gathering is also planned for those who are
able to arrive on the Friday evening
Full details of the booking arrangements are below. Check our
website for any late breaking news. http://www.uk.amsat.org/ and
also full details of how to get to Guildford etc.
Members and non-members will be equally welcome.
AMSAT-UK Colloquium 2009 - Booking Information
----------------------------------------------
Special rates at the hotel have also been negotiated for the
Friday and Sunday nights should delegates wish to arrive early,
or depart late.
To book your place at the Colloquium, YOU MUST BOOK WITH THE
HOTEL. (Please do not attempt to book with AMSAT-UK as in previous
years)
The easiest way to do this is to phone the special Conference Office
at the hotel on +44 (0) 1483 784444 and quote reference R0F (That's
R zero F). You must lodge your credit card details with the hotel.
If you wish to book over the internet, then please email the hotel
on meetings-guildford@xxx.xxx. PLEASE NOTE THAT IN ORDER TO GUARANTEE
A ROOM AT THE HOTEL FOR THE SAT NIGHT YOU MUST BOOK BEFORE FRIDAY 3 JULY.
Bookings for the Fri/Sun nights, or ones made after this date cannot
be guaranteed.
YOU ARE ADVISED TO BOOK EARLY, AS THE HOTEL WILL ONLY HOLD A LIMITED
NUMBER OF ROOMS FOR US.
Costs
-----
The complete package, including tea/coffee, attendance at all present-
ations, a gala dinner on Saturday evening, bed and breakfast on Sat pm
through Sun morning is only UK Pounds ?128. This price does NOT include
lunch, which may be taken at the hotel, or elsewhere. (Cost of a three-
course buffet style lunch at the hotel is ?15, alternatively the hotel
offers bar meals/snacks)
The special rate for bed and breakfast on either Fri/Sat or Sun/Mon is
UK pounds ?75.00 per night.
If you do not wish to stay at the hotel overnight (for example, if you
live locally), you can book attendance at the presentations at the rate
of ?25.00 per day (includes tea/coffee, excludes lunch) and/or the Gala
Dinner on Saturday evening at ?20.00. Again these booking must be made
directly with the hotel.
Jim Heck, G3WGM
Hon Sec AMSAT-UK
[ANS thanks AMSAT-UK for the above information]
/EX
SB SAT @ AMSAT $ANS-158.06
COMPASS Satellite Team Releases New Commands for Amateur Radio
AMSAT News Service Bulletin 158.06
>From AMSAT HQ SILVER SPRING, MD.
June 7, 2009
To All RADIO AMATEURS
BID: $ANS-158.06
The COMPASS satellite team is happy to announce three DTMF commands
to the Amateur Radio community to say THANK YOU for your support.
The uplink frequency for COMPASSis 145.980 MHz FM, and the new
DTMF tones for Amateur Radio operator to request information from
the satellite include:
**35## - request a test beacon CW
**36## - request a test packet 1k2 AFSK FM (UI-Frame)
**60## - request a housekeeping frame in 1k2 AFSK FM (KISS frame)
Every command will be confirmed with a short "beep" on the CW beacon
frequency of 437.275 MHz. Packet data is sent on 437.405 MHz. A news
blog can be found at http://www.raumfahrt.fh-aachen.de/news.htm.
COMPASS telemetry decoding software is available on-line from:
http://www.dk3wn.info/software.shtml.
Please send your received data to compass1cubesat@xxxxxxxxxx.xxx
Also, if you have any questions please don?t hesitate to ask us at
this e-mail address.
Henk, PA3GUO has posted a video describing his reception of Compass-1
AFSK telemetry at http://www.vimeo.com/4911267. To play the movie
full-screen, click on the right bottom button in the player. Also
there is a HD button, ensure it is showing "HD is on".
[ANS thanks Mike, DK3WN for the above information]
/EX
SB SAT @ AMSAT $ANS-158.07
Satellite Shorts From All Over
AMSAT News Service Bulletin 158.07
>From AMSAT HQ SILVER SPRING, MD.
June 7, 2009
To All RADIO AMATEURS
BID: $ANS-158.07
+ Piraja, PS8RF reported copying Jean-Jacques, ON7EQ via AO-7 over a
distance of 4757 miles, or 7616 Km. He has a video of the DX event
posted at http://www.youtube.com/watch?v=ggNmQqxARWY.
+ Once again we are approaching the 4th full weekend in June and that
means Field Day. The AMSAT 2009 Field Day rules have been posted at:
http://www.amsat.org/amsat-new/awards/amsatfd.php
+ Amateur Radio operators are reporting receiving the AMSAT-India
VO-52 Award in the mail. AMSAT-India Secretary Nitin, VU3TYG says
the award continues to be available with details on-line at:
http://www.amsatindia.org
+ Robert, NH7WN in Honolulu reported contact with Patrick, WD9EWK and
copied Michael WB7QXU via AO-51. Patrick reported, "It appears we
covered a path of just over 2900 miles (almost 4700km) with that brief
contact. Clint, K6LCS reported that NH7WN sounded great in Riverside,
California.
+ Tim, N3TL has been experimenting with 500 milliwatt power on his AO-7
uplink. He reports contact with K8YSE. Tim also thanks Rick, WA4NVM,
Pete, WB2OQQ, and others who were listening for him on these tests.
+ Raul, CA3SOC has posted several videos of his satellite operation with
his FT-847 and Ham Radio Deluxe software at:
http://www.youtube.com/profile?user=ce3soc&view=videos
+ A graphic satellite tracker can be viewed at: http://www.opensats.net
[ANS thanks everyone for the above information]
/EX
In addition to regular membership, AMSAT offers membership in the
President's Club. Members of the President's Club, as sustaining donors
to AMSAT Project Funds, will be eligible to receive additional benefits.
Application forms are available from the AMSAT Office. With that please
keep in mind that if you go duck hunting in a swamp try not to get stuck
in the quackmire!
73,
This week's ANS Editor,
JoAnne Maenpaa, K9JKM
K9JKM at amsat dot org
------------------------------
Message: 8
Date: Sun, 07 Jun 2009 08:20:22 +0930
From: David Giles <vk5dg@xxxxx.xxx>
Subject: [amsat-bb] Re: HF satellite?
To: bruninga@xxxx.xxxx "Amsat-Bb@xxxxx. Org" <amsat-bb@xxxxx.xxx>
Message-ID: <4A2AF2AE.7000601@xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Hello Bob and others,
Just to get the ball rolling on what you require for the 10m/12m
transponder. I have no experience in building anything like this, just
a lot of questions buzzing around.
What are the maximum physical sizes?
What is the power supply voltage and maximum current?
Does it need a beacon, be it a keyed input or even a continuous carrier?
Can it use any sections of the #2 transponder? e.g. an IF output from
the 29MHz section. Or will they just share an antenna?
How much bandwidth should it be? Can it be based on a ceramic filter
e.g. 50kHz at 4.5MHz from a TV or 25kHz at 45MHz used in FM radios.
What is the expected 12m power output?
Are there any link budget calculations?
Is there any segment of the 12m band that will be better suited? In VK
SSB is recommended from 24.930-24.990MHz
73 de David VK5DG
Robert Bruninga wrote:
> We are considering an HF transponder for our next long range
> CUBESAT mission planning. It can have three modes:
>
> 1) APRS 1200 baud for command and control and APRS on 145.825
> 2) PSK-31 multi-user SSB uplink on 29 MHz and FM down link on
> 145.825
> 3) 29 MHz uplink and 24 MHz downlink SSB transponder
>
> We will welcome someone in the AMSAT community that wants to
> contribute to mission 3, the HF transponder. We tried the #2
> PSK-31 mission on PCSAT2 and RAFT, both failed due to HF antenna
> deployment problems. Now we are going to try again...
>
> 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: 9
Date: Sun, 7 Jun 2009 10:13:34 +0100
From: "David Barber" <david.barber@xxxxxxxxxxxxx.xx.xx>
Subject: [amsat-bb] Re: unknown packet signal information
To: "'amsat'" <amsat-bb@xxxxx.xxx>
Cc: kg4zlb@xxxxx.xxx
Message-ID: <6E5CB999B794404AA75FCCC636865F2F@xxxxxxxx>
Content-Type: text/plain; charset="US-ASCII"
It would seem so:
http://www.findu.com/cgi-bin/pcsat.cgi
David
G8OQW
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of David - KG4ZLB
Sent: 06 June 2009 23:00
Cc: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: unknown packet signal information
Is NO-44 (PCSAT) working again then?
David
--
David
KG4ZLB
www.kg4zlb.com
------------------------------
Message: 10
Date: Sun, 7 Jun 2009 15:35:35 +0100
From: "SALAH" <salah@xxxxx.xxx.xx>
Subject: [amsat-bb] NORAD TLE file from several GPS positions of a
satellite
To: <amsat-bb@xxxxx.xxx>
Message-ID: <285A8E7156764CD6A6E71D0388D199DD@xxxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
Can anybody tell me how to build a NORAD TLE file from several GPS positions
of a satellite?
Is there any VB6 code to do this?
73's
CN8XS
------------------------------
Message: 11
Date: Sun, 7 Jun 2009 17:57:34 +0200 (CEST)
From: "Henk, PA3GUO" <hamoen@xxx.xx>
Subject: [amsat-bb] ... talking HF satellites: RS-15 is still
transmitting !
To: <amsat-bb@xxxxx.xxx>
Cc: pa3guo@xxxxx.xxx
Message-ID: <50615.212.61.85.133.1244390254.squirrel@xxxxxxx.xxx.xx>
Content-Type: text/plain; charset=iso-8859-1
Triggered by the discussions on HF satellites ...
I did give RS-15 a try this morning and yes, I could hear it !
Still very weak during a 45 degrees elevation pass.
The next pass was higher, but then I didn't hear anything.
Click here for a screen shot, you will see the recorded signal of RS-15.
http://www.pa3guo.com/rs15_beacon_pa3guo_07june2009_0812utc.jpg
My set-up is really marginal: just a TS2000 connected to a simple 14MHz dipol.
... then: I came across this website, very nice !
http://www.newearth.demon.co.uk/sat/rs15-bbc.htm
Henk, PA3GUO
http://www.pa3guo.com
------------------------------
Message: 12
Date: Sun, 7 Jun 2009 13:04:20 EDT
From: G0MRF@xxx.xxx
Subject: [amsat-bb] Re: ... talking HF satellites: RS-15 is still
transmitting !
To: amsat-bb@xxxxx.xxx
Cc: pa3guo@xxxxx.xxx
Message-ID: <cdc.4cf05ddd.375d4d14@xxx.xxx>
Content-Type: text/plain; charset="US-ASCII"
What an interesting piece of work on RS15 !
I notice that the graphs for 2009 on the 'solar elevation' page predict
that RS15 is in, or shortly will be in, a period of permanent illumination.
Perhaps another good example of a satellite with working solar panels that
would have benefited from some form of hardware to bypass the command and
control circuits when they failed and put the satellite into transponder
mode.
Thanks Henk
David G0MRF
In a message dated 07/06/2009 15:59:11 GMT Standard Time, hamoen@xxx.xx
writes:
My set-up is really marginal: just a TS2000 connected to a simple 14MHz
dipol.
... then: I came across this website, very nice !
http://www.newearth.demon.co.uk/sat/rs15-bbc.htm
Henk, PA3GUO
http://www.pa3guo.com
------------------------------
Message: 13
Date: Sun, 7 Jun 2009 12:35:28 -0500
From: "George Henry" <ka3hsw@xxx.xxx>
Subject: [amsat-bb] Re: HF satellite?
To: "amsat bb" <amsat-bb@xxxxx.xxx>
Message-ID: <88033B05DAF846F09584883DC4944D93@xxxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
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I have no experience in building one either, but I would think that the 10.7
MHz IF of a typical FM receiver, designed to feed a 455 KHz 2nd IF, would
give ample bandwidth. Follow it with a 100KHz filter, mix with a 14.2xxx
LO, into your 24 MHz PA, and you've got a transponder.
I think...
George, KA3HSW
----- Original Message -----
From: "David Giles" <vk5dg@xxxxx.xxx>
To: <bruninga@xxxx.xxx>; "Amsat-Bb@xxxxx. Org" <amsat-bb@xxxxx.xxx>
Sent: Saturday, June 06, 2009 5:50 PM
Subject: [amsat-bb] Re: HF satellite?
> Hello Bob and others,
>
> Just to get the ball rolling on what you require for the 10m/12m
> transponder. I have no experience in building anything like this, just
> a lot of questions buzzing around.
>
> What are the maximum physical sizes?
> What is the power supply voltage and maximum current?
> Does it need a beacon, be it a keyed input or even a continuous carrier?
> Can it use any sections of the #2 transponder? e.g. an IF output from
> the 29MHz section. Or will they just share an antenna?
> How much bandwidth should it be? Can it be based on a ceramic filter
> e.g. 50kHz at 4.5MHz from a TV or 25kHz at 45MHz used in FM radios.
> What is the expected 12m power output?
> Are there any link budget calculations?
> Is there any segment of the 12m band that will be better suited? In VK
> SSB is recommended from 24.930-24.990MHz
>
> 73 de David VK5DG
>
------------------------------
Message: 14
Date: Sun, 7 Jun 2009 11:22:19 -0700
From: "James Denneny" <57jndenneny@xxxxxxx.xxx>
Subject: [amsat-bb] CP-6 Decode
To: <amsat-bb@xxxxx.xxx>
Message-ID: <002b01c9e79c$eb0c8330$c1258990$@xxx>
Content-Type: text/plain; charset="us-ascii"
I am new to cubesats & am having decode issues. I have the Polysat CPX
decoder and finally got correct keps pasted into decoder
preferences>satellite.
I am using SAT-PC32 and have appropriate keps and freq data loaded. Program
tracks CP-6 correctly and agrees with tracking info in CPX decoder.
Radio is IC910H in LSB mode and radio is tracking SAT-PC32 doppler freq data
OK. Today (June 7), I had a decent pass with reasonable EL. Antenna are
tracking CP-6 ok via SAT-PC32. I heard nothing during today's 10 min pass.
I believe I have another issue beyond not hearing signal. I am using an AEA
DSP2232 tnc between IC910H and CPX decoder. It is set for 9600baud packet
data from copying now defunct GO-32 BB. I believe I need to figure out how
to set it up for 1200baud FSK. Is that correct?
Jim
K7EG
------------------------------
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End of AMSAT-BB Digest, Vol 4, Issue 264
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