| |
CX2SA > SATDIG 06.11.11 21:24l 1207 Lines 37012 Bytes #999 (0) @ WW
BID : AMSATBB6615
Read: GUEST
Subj: AMSAT-BB-digest V6 615
Path: IZ3LSV<IK2XDE<DB0RES<WA7V<CX2SA
Sent: 111106/1919Z @:CX2SA.LAV.URY.SA #:36910 [Minas] FBB7.00e $:AMSATBB6615
From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
Today's Topics:
1. Re: ESA lunar probe (R Oler)
2. Re: ESA lunar probe (R Oler)
3. ANS-310 AMSAT News Service Weekly Bulletins (JoAnne Maenpaa)
4. M-Cubed telemetry decoded (Carl Rimmer W8KRF)
5. Re: ESA lunar probe (Edward R. Cole)
6. Re: ESA lunar probe (i8cvs)
7. Re: M-Cubed telemetry decoded (PA3GUO)
8. Chart of CubeSat Frequencies (Trevor .)
9. Re: M-Cubed telemetry decoded (Mike Rupprecht)
10. Rotor (DOUGLAS WILLETS)
11. Re: Rotor (Angelo Glorioso)
12. Re: Rotor (i8cvs)
13. Re: Rotor (Art McBride)
14. Re: Rotor (Angelo Glorioso)
----------------------------------------------------------------------
Message: 1
Date: Sat, 5 Nov 2011 10:59:48 -0500
From: R Oler <orbitjet@xxxxxxx.xxx>
To: <w7lrd@xxxxxxx.xxx>
Cc: Amsat BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: ESA lunar probe
Message-ID: <COL106-W3CF6A9E232DEBEF432771D6DB0@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
Bob...its been done here a zillion times...it wont be done with an HT and a
small yagi...it will however be possible whereas a "Mars" effort is really
not possible for anyone except "Goldstone class" stations (and the time
delay makes it well a unique form of transportation). A small linear
transponder with some horizon omni gain antennas would be a challenge, but
it would be easier then moonbounce Robert G. Oler WB5MZO life member AMSAT
ARRL NARS
Date: Sat, 5 Nov 2011 06:54:32 +0000
From: w7lrd@xxxxxxx.xxx
To: orbitjet@xxxxxxx.xxx
CC: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] ESA lunar probe
Just for the sake of conversation and thinking. What would the link budget
look like for a transponder on the moon.
Bob W7LRD
From: "R Oler" <orbitjet@xxxxxxx.xxx>
To: "Amsat BB" <amsat-bb@xxxxx.xxx>
Sent: Friday, November 4, 2011 4:10:00 PM
Subject: [amsat-bb] ESA lunar probe
http://www.bbc.co.uk/news/science-environment-15574653
to bad there cant be an amateur radio payload even a really small one...this
probe should be "longer lived" then most as it should have a constant energy
source...
Wonder why the Europeans are thinking of sending Phase 5A to Mars? It will
probably never fly and almost no hams can be a part of that...so well why
not send it to L2 in the Earth Moon systems...a halo orbit...
Robert G. Oler WB5MZO Life Member AMSAT ARRL NARS
_______________________________________________
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: 2
Date: Sat, 5 Nov 2011 12:11:18 -0500
From: R Oler <orbitjet@xxxxxxx.xxx>
To: <w7lrd@xxxxxxx.xxx>
Cc: Amsat BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: ESA lunar probe
Message-ID: <COL106-W7E85F8E25CEF676EB1FDFD6DB0@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
I wrote: (and the time delay makes it well a unique form of
transportation)..transportation should obviously be "communication".
the reality of a lunar transponder (or even a packet system) would be that
it would encourage a lot of things that the FM sats do not...and discourage
a lot of bad things...it wont happen I know because of a lot of
reasons...but it would change our hobby and the satellite part of it for the
better. RGO WB5MZO life member AMSAT ARRL NARS
sent from my IPAD
From: orbitjet@xxxxxxx.xxx
To: w7lrd@xxxxxxx.xxx
CC: amsat-bb@xxxxx.xxx
Subject: RE: [amsat-bb] ESA lunar probe
Date: Sat, 5 Nov 2011 10:59:48 -0500
Bob...its been done here a zillion times...it wont be done with an HT and a
small yagi...it will however be possible whereas a "Mars" effort is really
not possible for anyone except "Goldstone class" stations (and the time
delay makes it well a unique form of transportation). A small linear
transponder with some horizon omni gain antennas would be a challenge, but
it would be easier then moonbounce Robert G. Oler WB5MZO life member AMSAT
ARRL NARS
Date: Sat, 5 Nov 2011 06:54:32 +0000
From: w7lrd@xxxxxxx.xxx
To: orbitjet@xxxxxxx.xxx
CC: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] ESA lunar probe
Just for the sake of conversation and thinking. What would the link budget
look like for a transponder on the moon.
Bob W7LRD
From: "R Oler" <orbitjet@xxxxxxx.xxx>
To: "Amsat BB" <amsat-bb@xxxxx.xxx>
Sent: Friday, November 4, 2011 4:10:00 PM
Subject: [amsat-bb] ESA lunar probe
http://www.bbc.co.uk/news/science-environment-15574653
to bad there cant be an amateur radio payload even a really small one...this
probe should be "longer lived" then most as it should have a constant energy
source...
Wonder why the Europeans are thinking of sending Phase 5A to Mars? It will
probably never fly and almost no hams can be a part of that...so well why
not send it to L2 in the Earth Moon systems...a halo orbit...
Robert G. Oler WB5MZO Life Member AMSAT ARRL NARS
_______________________________________________
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: 3
Date: Sat, 5 Nov 2011 20:24:26 -0500
From: "JoAnne Maenpaa" <k9jkm@xxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] ANS-310 AMSAT News Service Weekly Bulletins
Message-ID: <001101cc9c22$d3402800$79c07800$@xxx>
Content-Type: text/plain; charset="iso-8859-1"
AMSAT NEWS SERVICE
ANS-310
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
In this edition:
* AMSAT Board of Directors Names Senior Officers for 2011-2012
* Project OSCAR and AMSAT Commemorate 50th Anniversary of OSCAR 1
* ARISSat-1/KEDR Team Challenge to Catch the Last ARISSat-1 Telemetry
* Asteroid Ping Experiment November 8 For Suitably Equipped Stations
* Montana State University Explorer-1 Prime Cubesat Featured in Press
* Satellite Shorts From All Over
SB SAT @ AMSAT $ANS-310.01
AMSAT Board of Directors Names Senior Officers for 2011-2012
AMSAT News Service Bulletin 310.01
>From AMSAT HQ SILVER SPRING, MD.
November 6, 2011
To All RADIO AMATEURS
BID: $ANS-310.01
Election of AMSAT's Senior Officers was one of the first orders of
business to be settled once the AMSAT Board of Directors meeting
opened on November 3, prior to the start of the 2011 AMSAT Space
Symposium held in San Jose, California.
The following positions were voted upon and filled:
Barry Baines, WD4ASW President
Drew Glasbrenner, KO4MA Vice-President Operations
Gould Smith, WA4SXM Vice President User Services
Tony Monteiro, AA2TX Vice-President Engineering
Alan Biddle, WA4SCA Secretary
Keith Baker, KB1SF/VA3KSF Treasurer
Martha Saragovitz Manager
The following Senior Officer positions remained open at this time
awaiting appointments:
Executive Vice President
Vice-President Human Spaceflight
Vice-President Marketing
The AMSAT Board of Directors elected on September 15 include:
Barry Baines, WD4ASW
Alan Biddle, WA4SCA
Dr. Thomas A. Clark, K3IO
Drew Glasbrenner, KO4MA
Lou McFadin, W5DID
Tony Monteiro, AA2TX
Gould Smith, WA4SXM
Mark Hammond, N8MH (First Alternate)
Patrick Stoddard, WD9EWK (Second Alternate)
Other items on the Board of Directors agenda included:
+ Reports from the President, Secretary, and Treasurer
+ Budget approval for 2012
+ Technical Issues to be addressed included:
o Regulatory Issues Affecting AMSAT (ITAR and HR607)
o ARISSat-1
o Project Fox
o ARISS and ARISS-International
o AMSAT Lab Update/Storage
o Operations Team Report
o User Services Report
Details of these reports will be presented in upcoming ANS bulletins
and in The AMSAT Journal.
[ANS thanks the AMSAT Board of Directors for the above information]
SB SAT @ AMSAT $ANS-310.02
Project OSCAR and AMSAT Commemorate 50th Anniversary of OSCAR 1
AMSAT News Service Bulletin 310.02
>From AMSAT HQ SILVER SPRING, MD.
November 6, 2011
To All RADIO AMATEURS
BID: $ANS-310.02
The AMSAT 2011 AMSAT Space Symposium coincides with the cele-
bration of the 50th anniversary of OSCAR 1.
Bob Allison, WB1GCM of ARRL's Technical Lab led the effort to
refurbish the OSCAR 1 prototype on display at ARRL headquarters.
With the help of Symposium Banquet Speaker and OSCAR 1 developer
Lance Ginner, K6GSJ, Bob and his team got OSCAR 1 operational
again.
The refurbished OSCAR-1 was on display at the ARRL exhibit area at
the 2011 Dayton Hamvention. The OSCAR 1 prototype was again on disp-
lay during the AMSAT Symposium where everyone was able to once again
hear the CW transmissions (now managed by a PIC controller) in the
145 MHz band.
Additionally, the AMSAT News Service will re-run the weekly Project
OSCAR Newsletters to commemorate the 50th anniversary of OSCAR 1.
During the November/December 2011 time frame you will be able to
share the excitement of the launch campaign that started it all 50
years ago.
Watch for the re-publication of the Project OSCAR Newsletters in the
AMSAT Journal. The Newsletters were hand-typed back in 1961. Thanks
to Don Ferguson, KD6IRE for scanning the original documents announ-
cing OSCAR 1.
[ANS thanks Project OSCAR and the 2011 Symposium Committee for the
above information]
SB SAT @ AMSAT $ANS-310.03
ARISSat-1/KEDR Team Challenge to Catch the Last ARISSat-1 Telemetry
AMSAT News Service Bulletin 310.03
>From AMSAT HQ SILVER SPRING, MD.
November 6, 2011
To All RADIO AMATEURS
BID: $ANS-310.03
Now that the submissions are complete for the Chicken Little Contest
AMSAT is announcing a new contest to "Catch the Last ARISSat-1 Tele-
metry."
With luck, we will have real time data to go along with the final re-
entry. While telemetry sent by e-mail is valuable and requested, this
contest will be judged solely on data sent through the official
ARISSatTLM programs directly to the Internet telemetry server.
How do you enter? Simple. Just submit ARISSat-1 telemetry over the
Internet using either ARISSatTLM telemetry program. You can use the
PC version or the MAC version of ARISSatTLM and you are automatically
eligible.
Are there separate categories for entrants? No.
How is the winner determined? The call, or name, in the last block
of data received by telemetry server wins.
How will the winner be announced? Via the usual AMSAT News Service,
and on the Chicken Little Contest site.
(see: http://www.amsat.org/amsat-new/ARISSat/ARISSatContest)
If ARISSat-1 fails sometime before reentry, does it count? Yes!
Engineering data is essential input for future projects!
What do I get if I win? A certificate in PDF format suitable for
framing, and the gratitude of the ARISSat-1/KEDR team.
In short, just keeps those telemetry blocks flowing!
Remember: you can see the latest ARISSat-1 telemetry at
http://www.arissattlm.org/live
[ANS thanks the ARISSat-1/KEDR Team for the above information]
SB SAT @ AMSAT $ANS-310.04
Asteroid Ping Experiment November 8 For Suitably Equipped Stations
AMSAT News Service Bulletin 310.04
>From AMSAT HQ SILVER SPRING, MD.
November 6, 2011
To All RADIO AMATEURS
BID: $ANS-310.04
On Tuesday, November 8, at 6:28 p.m. EST, an asteroid the size of an
aircraft carrier will soar past our planet at a distance closer than
the Moon? and NASA scientists will be watching! Suitably equipped
amateur stations may enjoy looking over their shoulder ...
The 400 meter diameter near-Earth asteroid 2005 YU55 will be making
a 0.85 lunar distance flyby of Earth on November 8. Michael Busch at
the UCLA Department of Earth and Space Sciences notes this may an
opportunity for amateur satellite operators to observe the fly-by.
UCLA will be conducting an extensive campaign of radar observations
with the Arecibo Observatory, the Deep Space Network Goldstone facil-
ity, and the Green Bank Telescope and the Very Long Baseline Array.
Because YU55 will be so close to Earth, its radar echo will be
detectable with even small antennas (~1 m^2). YU55's echo will be
a slowly drifting signal with a bandwidth of ~1 Hz within a few kHz
of 2380 MHz or 8560 MHz.
This will present amateur radio operators an opportunity to receive
the radar reflections off of the asteroid because of the big dish,
big signals originating from Arecibo and Goldstone.
On November 8, 2011, 19:15 - 19:30 UTC, Arecibo will be transmitting
a continuous wave tuned to put the asteroid's echo at a constant
2380.000000 MHz at the Green Bank Telescope. Observers elsewhere on
Earth will see the echo within 2 kHz of 2380 MHz, Doppler-shifted by
the Earth's rotation. It will be slowly drifting in frequency and
have a bandwidth of ~0.6 Hz.
On November 9, 2011, 01:30 - 02:00 UTC, the Goldstone Deep Space Net-
work facility will be be transmitting a continuous wave tuned to put
the asteroid's echo a constant 8560.000000 MHz at a second antenna at
the Goldstone site. Other observers may see the echo shifted by as
much as 6 kHz, and it will have a bandwidth of ~2 Hz.
Initial information can be found on-line at:
http://echo.jpl.nasa.gov/asteroids/2005YU55/2005YU55_planning.html
UniverseToday posted an article about this event at:
http://tinyurl.com/438kznj
[ANS thanks Michael Busch, UCLA Department of Earth and Space
Sciences for the above information]
SB SAT @ AMSAT $ANS-310.05
Montana State University Explorer-1 Prime Cubesat Featured in Press
AMSAT News Service Bulletin 310.05
>From AMSAT HQ SILVER SPRING, MD.
November 6, 2011
To All RADIO AMATEURS
BID: $ANS-310.05
Space-Travel.com posted a story about Montana State University's Ex-
plorer-1 Prime Cubesat launched on October 28 from Vandenberg AFB in
California. (see: http://tinyurl.com/6h7opyf for their full report)
Montana State University now has a satellite in space. Shortly before
4 a.m. Mountain time on October 28, a student-built satellite called
Explorer-1 [Prime] roared into the sky on a NASA rocket.
Within three hours of launch, ham radio operators in France, England
and The Netherlands had reported hearing from the satellite. A few
minutes later, the satellite was heading over the North Pole toward
Alaska.
Approximately 125 students designed, built and tested the satellite
over the past five years. The satellite, sponsored by the Montana
Space Grant Consortium, was MSU's first satellite to make it into
orbit. A previous satellite, called MEROPE, rode onboard a Russian
rocket that crashed in 2006. A twin to Explorer-1 [Prime] was launch-
ed in March this year, but it failed to reach orbit because of an
anomaly with the TAURUS-XL rocket that carried it.
But when NASA's satellite separated from the rocket Friday morning,
the students started cheering. Half an hour later, when the Explorer-1
[Prime] sprang from its container and entered orbit, no one held back.
MSU's satellite was one of six university-built satellites onboard
the Delta II rocket. All six are aluminum cubes weighing no more than
2.2 pounds and measuring about four inches per side. That standardized
size allows university-built satellites, called "CubeSats," to fit
into an enclosed container called a P-POD.
The Explorer-1 [Prime] will circle the Earth every 90 minutes in an
283 to 503 mile elliptical orbit.
MSU built the Explorer-1 [Prime] to replicate the scientific mission
of the Explorer-1 mission which was launched on Jan. 31, 1958, and
detected the existence of a band of energetic charged particles held
in place by the Earth's magnetic field.
The band was named the Van Allen Radiation Belt after the late James
Van Allen, who directed the design and creation of instruments on
Explorer-1.
Satellite: Explorer-1[PRIME] Flight Unit 2
Downlink Freq: 437.505 MHz
EIRP: -0.7dBW
Modulation Scheme: Non-Coherent FSK
Protocol: KISS Custom
Baud Rate: 1200
http://ssel.montana.edu/e1p/
[ANS thanks Space-Travel.com for the above information]
SB SAT @ AMSAT $ANS-310.06
Satellite Shorts From All Over
AMSAT News Service Bulletin 310.06
>From AMSAT HQ SILVER SPRING, MD.
November 6, 2011
To All RADIO AMATEURS
BID: $ANS-310.06
+ ARISS School Contacts this week from the ISS will present addi-
tional opportunities to directly copy the downlink from orbit on
145.800 MHZ:
Rehabilitationszentrum f?r Kinder und Jugendliche, Affoltern am
Albis, Switzerland, direct via HB9TSO on Wed 2011-11-09 14:21:11
UTC 75 deg
Donald P. Sutherland School, Nassau, New York, direct via N2SQU
on Thu 2011-11-10 19:35:18 UTC 58 deg (via AJ9N)
+ A nice on-line satellite activity logger can be found at:
http://dxworld.com/satlog.html (via WA4HFN)
+ The original TV news reports about the United Kingdom's first Ama-
teur Radio satellites, UOSAT-1 (OSCAR-9) and UOSAT-2 (OSCAR-11),
can now be seen on the web. In 'Talking Satellite', made Feb. 15,
1983, Martin Sweeting G3YJO talks about OSCAR-9 and it's speech
synthesizer. In 'British Satellite', made February 7, 1984, Martin
Sweeting G3YJO talks about OSCAR-11 due to be launched the follow-
ing month. Links to both videos are posted on the Southgate ARC
News website: http://tinyurl.com/64lvghw
+ A TV news report first broadcast Aug. 4, 1985 shows a contact be-
tween RSGB HQ in Potters Bar and Astronaut Tony England W0ORE in
the Challenger shuttle on mission STS 51-F. Tony W0ORE was running
a Motorola model MX-340 handheld 2-meter transceiver and a Robot
Research model 1200C slow-scan television scan converter with an
antenna fitted on the inside of one of Challengers windows. RSGB
General Manager David Evans G3OUF was among those at the Society's
station GB3RS. It is believed the voice contact was carried out on
145.550 MHz FM and the RSGB HQ team acheived a first with a two-way
exchange of Slow Scan TV (SSTV) pictures. A link to the video is
is posted on the Southgate ARC site at: http://tinyurl.com/673f4k8
+ Amateur Radio Satellite activity and instruction video by the Hams
in Space Team at Bennett Spring State Park, Missouri is posted at:
http://www.youtube.com/watch?feature=player_embedded&v=ZNCgiljwQgQ
The Hams in Space web page is at: http://hamsinspace.com/
+ Watch the laws of physics in action as the International Space Sta-
tion is boosted into a higher orbit. While Expedition 29 Commander
Mike Fossum and Flight Engineers Satoshi Furukawa and Sergei Volkov
float freely the acceleration of the orbiting complex is evident.
See: http://tinyurl.com/6gg996y (nasa.gov)
+ A 500+ page free book is available for download from the NASA Ar-
chives. "Read You Loud and Clear! ... The Story of NASA's Space-
flight Tracking and Data Network", by Sunny Tsiao can be found at:
http://tinyurl.com/655t765 (nasa.gov)
+ The next Hudson Valley Satcom net is November 10 at 8PM EST
(UTC-5). You can tune in via the 146.970 MHz Mt. Beacon repeater,
PL 100.0 or via EchoLink on the N2EYH-L node. More info is avail-
able at: http://www.hvsatcom.org (Stu, WA2BSS)
[ANS thanks everyone for the above information]
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. And with that,
please keep in mind the ham who was taken to the emergency room after
accidentally swallowing a handful of coins. When the doctor asked the
nurse about the patient's condition, the reply was, "No change yet!"
73,
This week's ANS Editor,
JoAnne Maenpaa, K9JKM
K9JKM at amsat dot org
------------------------------
Message: 4
Date: Sat, 05 Nov 2011 22:42:31 -0400
From: Carl Rimmer W8KRF <w8krf@xxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] M-Cubed telemetry decoded
Message-ID: <4EB5F417.7000803@xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
FB Mike. Could you share which Keps you were using? Also, what mode
did you use? What is your setup...radio, TNC, etc?
I have had no luck with any of the projects. I would like to try M-Cubed.
73,
--
*Carl W8KRF*
------------------------------
Message: 5
Date: Sat, 05 Nov 2011 22:33:18 -0800
From: "Edward R. Cole" <kl7uw@xxxxxxxxx.xxx>
To: R Oler <orbitjet@xxxxxxx.xxx>, <w7lrd@xxxxxxx.xxx>
Cc: Amsat BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: ESA lunar probe
Message-ID: <201111060633.pA66XXmu017106@xxxxx.xxxxxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
At 09:11 AM 11/5/2011, R Oler wrote:
>I wrote: (and the time delay makes it well a unique form of
>transportation)..transportation should obviously be "communication".
>
>the reality of a lunar transponder (or even a packet system) would
>be that it would encourage a lot of things that the FM sats do
>not...and discourage a lot of bad things...it wont happen I know
>because of a lot of reasons...but it would change our hobby and the
>satellite part of it for the better. RGO WB5MZO life member AMSAT ARRL NARS
>
>sent from my IPAD
>
>From: orbitjet@xxxxxxx.xxx
>To: w7lrd@xxxxxxx.xxx
>CC: amsat-bb@xxxxx.xxx
>Subject: RE: [amsat-bb] ESA lunar probe
>Date: Sat, 5 Nov 2011 10:59:48 -0500
>
>
>
>
>
>
>
>
>Bob...its been done here a zillion times...it wont be done with an
>HT and a small yagi...it will however be possible whereas a "Mars"
>effort is really not possible for anyone except "Goldstone class"
>stations (and the time delay makes it well a unique form of
>transportation). A small linear transponder with some horizon omni
>gain antennas would be a challenge, but it would be easier then
>moonbounce Robert G. Oler WB5MZO life member AMSAT ARRL NARS
>
>Date: Sat, 5 Nov 2011 06:54:32 +0000
>From: w7lrd@xxxxxxx.xxx
>To: orbitjet@xxxxxxx.xxx
>CC: amsat-bb@xxxxx.xxx
>Subject: Re: [amsat-bb] ESA lunar probe
>
>
>
>Just for the sake of conversation and thinking. What would the link
>budget look like for a transponder on the moon.
>
>Bob W7LRD
>
>
>
>
>
>
>
>
>From: "R Oler" <orbitjet@xxxxxxx.xxx>
>To: "Amsat BB" <amsat-bb@xxxxx.xxx>
>Sent: Friday, November 4, 2011 4:10:00 PM
>Subject: [amsat-bb] ESA lunar probe
>
>
>http://www.bbc.co.uk/news/science-environment-15574653
>
>to bad there cant be an amateur radio payload even a really small
>one...this probe should be "longer lived" then most as it should
>have a constant energy source...
>
>Wonder why the Europeans are thinking of sending Phase 5A to
>Mars? It will probably never fly and almost no hams can be a part
>of that...so well why not send it to L2 in the Earth Moon
>systems...a halo orbit...
>
>Robert G. Oler WB5MZO Life Member AMSAT ARRL NARS
>
Using my MRO Calc program:
http://www.kl7uw.com/MROCalc.xls
with 10w output
6 dBi antenna on the Moon (e.g. corner reflector)
average lunar distance = 370,000 km
ground receive antenna gain = 18 dBi (e.g. M2-436CP42)
Rx NT=40K
Tsky=70K
Tant=40K
Freq. 437 MHz
bw =4.7Hz for JT-65
a signal of -23 can be seen (which is fairly good signal level for
reception of JT-65).
73, Ed - KL7UW, WD2XSH/45
======================================
BP40IQ 500 KHz - 10-GHz www.kl7uw.com
EME: 50-1.1kw?, 144-1.4kw, 432-QRT, 1296-?, 3400-?
DUBUS Magazine USA Rep dubususa@xxxxx.xxx
======================================
------------------------------
Message: 6
Date: Sun, 6 Nov 2011 07:45:22 +0100
From: "i8cvs" <domenico.i8cvs@xxx.xx>
To: "R Oler" <orbitjet@xxxxxxx.xxx>, <w7lrd@xxxxxxx.xxx>
Cc: Amsat BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: ESA lunar probe
Message-ID: <001301cc9c4f$a90617c0$0401a8c0@xxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
----- Original Message -----
From: "R Oler" <orbitjet@xxxxxxx.xxx>
To: <w7lrd@xxxxxxx.xxx>
Cc: "Amsat BB" <amsat-bb@xxxxx.xxx>
Sent: Saturday, November 05, 2011 6:11 PM
Subject: [amsat-bb] Re: ESA lunar probe
>
> I wrote: (and the time delay makes it well a unique form of
> transportation)..transportation should obviously be
> "communication".
>
> the reality of a lunar transponder (or even a packet system) would be that
> it would encourage a lot of things that the FM sats do not...and
> discourage a lot of bad things...it wont happen I know because of a lot of
> reasons...but it would change our hobby and the satellite part of it for
> the better.
> RGO WB5MZO life member AMSAT ARRL NARS
>
Hi Robert, WB5MZO
You said that very well, and I agree !
73" de
i8CVS Domenico
------------------------------
Message: 7
Date: Sun, 6 Nov 2011 13:20:25 +0100
From: "PA3GUO" <pa3guo@xxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: M-Cubed telemetry decoded
Message-ID: <001b01cc9c7e$7786b130$66941390$@xxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Hi Carl !
MCubed & RAX use 9k6, you see that in an SDR, but don't really hear it.
Aubiesat is CW, but relative weak.
I would start with Explorer 1.
Explorer-1 uses 1k2 and you can clearly hear that in USB or LSB.
Also its signal is relative strong compared to the other sats.
Finally, you can decode it by just playback audio (eg mp3) via MixWin.
It transmits every 15 seconds a burst. Downlink frequency is 437.505 MHz.
Step 1: see if you hear it (and let us know - I am interested)
Step 2: decode it
Henk, PA3GUO
(antenna: 16 element, horiontal beam, pre-amp: SSB mast-mounted, RX: FCD
SDR)
>FB Mike. Could you share which Keps you were using? Also, what mode
>did you use? What is your setup...radio, TNC, etc?
>
>I have had no luck with any of the projects. I would like to try M-Cubed.
>--
>*Carl W8KRF*
------------------------------
Message: 8
Date: Sun, 6 Nov 2011 12:34:05 +0000 (GMT)
From: "Trevor ." <m5aka@xxxxx.xx.xx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Chart of CubeSat Frequencies
Message-ID:
<1320582845.60260.YahooMailClassic@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
Christophe has produced a handy chart showing the CubeSat UHF downlink
frequencies.
http://cubesat.free.fr/IMG//pdf/Cubesat_-_frequence_bande_U.pdf
CubeSat France in Google English http://tinyurl.com/CubeSatfFrance
73 Trevor M5AKA
AMSAT-UK: http://www.uk.amsat.org
----
------------------------------
Message: 9
Date: Sun, 6 Nov 2011 14:37:03 +0100
From: "Mike Rupprecht" <mail@xxxxxxxxxxxxxx.xx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: M-Cubed telemetry decoded
Message-ID: <000601cc9c89$2b366720$81a33560$@xx>
Content-Type: text/plain; charset="iso-8859-1"
Hi Carl,
sorry for the delay in answering your questions.
I agree with Henk - the best way to start is with E1P. This cubesat is very
strong and easy to decode.
Momentarily I use succesful OBJECT F with an center frequency of 437497.5
KHz in USB mode.
I am sure that E1P belongs to the first cluster (OBJ F and G) but all the
TLE are not very precise (and 2.7 days old).
You can use MixW with standard 1k2 AFSK settings to decode the signal.
A good way is also to record a certain bandwidth - e.g. with the FunCube
Dongle - so you can analyze and decode (manually tune) after the pass.
I use both ways at the same time:
both devices are on the same antenna - a 2x20 el X-Yagi MASPRO with
mast-mounted SSB electronics preamp
1) I track E1P with my FT-736R (antenna and frequency with OBJ F and
software like SatPC32, SATCONTROL or whatever), MixW and virtual port bridge
directly to the E1P decoder software
2) I use a downconverter (High Sierra Microwave 525A-16) together with my
SDR-IQ. So I can see all 4 cubesats at one (beginning from RAX-2 down to
E12P) and can record the complete bandwidth of 190KHz (center frequency
437.425 MHz) without doppler correction.
After a pass I can analyze the 9k6 RAX and M-Cubed packets with AGW packet
engine and my own written KISS software. And I decode the weak AubieSat-1 CW
beacon with my ears (hihi).
I know the second setup is not optimal - because the antenna is pointing to
E1P. Anyway I can decode the M-Cubed packets and RAX packets are pretty
strong.
Hope this helps ...
73 Mike
DK3WN
-----Urspr?ngliche Nachricht-----
Von: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx Im
Auftrag von PA3GUO
Gesendet: Sonntag, 6. November 2011 13:20
An: amsat-bb@xxxxx.xxx
Betreff: [amsat-bb] Re: M-Cubed telemetry decoded
Hi Carl !
MCubed & RAX use 9k6, you see that in an SDR, but don't really hear it.
Aubiesat is CW, but relative weak.
I would start with Explorer 1.
Explorer-1 uses 1k2 and you can clearly hear that in USB or LSB.
Also its signal is relative strong compared to the other sats.
Finally, you can decode it by just playback audio (eg mp3) via MixWin.
It transmits every 15 seconds a burst. Downlink frequency is 437.505 MHz.
Step 1: see if you hear it (and let us know - I am interested)
Step 2: decode it
Henk, PA3GUO
(antenna: 16 element, horiontal beam, pre-amp: SSB mast-mounted, RX: FCD
SDR)
>FB Mike. Could you share which Keps you were using? Also, what mode
>did you use? What is your setup...radio, TNC, etc?
>
>I have had no luck with any of the projects. I would like to try M-Cubed.
>--
>*Carl W8KRF*
_______________________________________________
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: 10
Date: Sun, 06 Nov 2011 09:28:05 -0500
From: "DOUGLAS WILLETS" <douglaswillets@xxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Rotor
Message-ID: <20CFEB97E9C141FD8D59C71F053F9D5C@xxxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
I am setting up a satellite station and have the following question. Does it
matter if you use a south center or north center rotor. Is there advantages
using one over the other.
Doug.
KE4MSG
------------------------------
Message: 11
Date: Sun, 6 Nov 2011 18:41:29 +0000
From: Angelo Glorioso <n5uxt@xxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Rotor
Message-ID: <BAY168-W7944756575843B9FFF9932EDD80@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
What type of rotor do you have???
73 de Angelo
---------------------------------------------------------
If you don't ask, you will never know!!
> From: douglaswillets@xxxxxxx.xxx
> To: amsat-bb@xxxxx.xxx
> Date: Sun, 6 Nov 2011 09:28:05 -0500
> Subject: [amsat-bb] Rotor
>
> I am setting up a satellite station and have the following question. Does
it matter if you use a south center or north center rotor. Is there
advantages using one over the other.
>
> Doug.
> KE4MSG
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 12
Date: Sun, 6 Nov 2011 20:01:05 +0100
From: "i8cvs" <domenico.i8cvs@xxx.xx>
To: "DOUGLAS WILLETS" <douglaswillets@xxxxxxx.xxx>, "Amsat - BBs"
<amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Rotor
Message-ID: <001501cc9cb6$6fa70720$0401a8c0@xxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
Hi Doug, KE4MSG
Since OSCAR-6 and all LEO satellites I have used north center rotors with
limit swiches operating on south and I got problems pointing exactly the
antennas during the ascending orbits when the satellite comes from south.
If you use south center rotors than the limit switches will operate on north
and you will get the same problem for descending orbits when the LEO
satellites comes from north.
For HEO satellite like OSCAR-10, OSCAR-13 and AO40 I have used another
antenna system with south center rotor and limit switches operating on north
because for most of the time the above HEO satellites were available with
azimuth changing from west to south to east or vice versa but never passing
through north.
73" de
i8CVS Domenico
----- Original Message -----
From: "DOUGLAS WILLETS" <douglaswillets@xxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Sent: Sunday, November 06, 2011 3:28 PM
Subject: [amsat-bb] Rotor
> I am setting up a satellite station and have the following question. Does
> it matter if you use a south center or north center rotor. Is there
> advantages using one over the other.
>
> Doug.
> KE4MSG
> _______________________________________________
> 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: 13
Date: Sun, 6 Nov 2011 11:04:16 -0800
From: "Art McBride" <kc6uqh@xxx.xxx>
To: "'DOUGLAS WILLETS'" <douglaswillets@xxxxxxx.xxx>,
<amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Rotor
Message-ID: <E7BB5FD251F443A8AC2F8FDE88619DEF@xxxxxx>
Content-Type: text/plain; charset="us-ascii"
Doug,
If you use a 180 Degree elevation rotator no. Passes almost always end up on
one stop or another of the TV type rotators. By offsetting the "N" end of
the rotator to the NE or NW and using the elevation rotator to pick the side
of travel which coverers the current pass will prevent any running out of
rotation during a pass. If you can find a 1&1/2 turn azimuth rotator the
problem goes away completely.
Art,KC6UQH
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of DOUGLAS WILLETS
Sent: Sunday, November 06, 2011 6:28 AM
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Rotor
I am setting up a satellite station and have the following question. Does it
matter if you use a south center or north center rotor. Is there advantages
using one over the other.
Doug.
KE4MSG
_______________________________________________
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
__________ Information from ESET NOD32 Antivirus, version of virus signature
database 6604 (20111105) __________
The message was checked by ESET NOD32 Antivirus.
http://www.eset.com
__________ Information from ESET NOD32 Antivirus, version of virus signature
database 6606 (20111106) __________
The message was checked by ESET NOD32 Antivirus.
http://www.eset.com
------------------------------
Message: 14
Date: Sun, 6 Nov 2011 19:16:16 +0000
From: Angelo Glorioso <n5uxt@xxxxxxx.xxx>
Cc: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Rotor
Message-ID: <BAY168-W1082AA407A62397778FACA9EDD80@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
With that rotor it is recommend to use south center.
73 de Angelo
---------------------------------------------------------
If you don't ask, you will never know!!
Date: Sun, 6 Nov 2011 11:06:52 -0800
From: lambright2001@xxxxx.xxx
Subject: Re: [amsat-bb] Re: Rotor
To: n5uxt@xxxxxxx.xxx
CC: amsat-bb@xxxxx.xxx
I have:
Rradio= Kenwood ts 2000
Software= Satpc32
Rotor controller=Easy-rotor- control 3d (ERC_3D)
Elevation=Yaesu 5400
Azimuth=Ham IV
From: Angelo Glorioso <n5uxt@xxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Sent: Sunday, November 6, 2011 1:41 PM
Subject: [amsat-bb] Re: Rotor
What type of rotor do you have???
73 de Angelo
---------------------------------------------------------
If you don't ask, you will never know!!
> From: douglaswillets@xxxxxxx.xxx
> To: amsat-bb@xxxxx.xxx
> Date: Sun, 6 Nov 2011 09:28:05 -0500
> Subject: [amsat-bb] Rotor
>
> I am setting up a satellite station and have the following question. Does
it matter if you use a south center or north center rotor. Is there
advantages using one over the other.
>
> Doug.
> KE4MSG
> _______________________________________________
> 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
_______________________________________________
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
------------------------------
_______________________________________________
Sent via amsat-bb@xxxxx.xxx. Opinions expressed are those of the author.
Not an AMSAT member? Join now to support the amateur satellite program!
http://amsat.org/mailman/listinfo/amsat-bb
End of AMSAT-BB Digest, Vol 6, Issue 615
****************************************
Read previous mail | Read next mail
| |
