- Original Message -
From: Peter Guelzow peter.guel...@kourou.de
To: amsat-bb@amsat.org
Sent: Sunday, June 03, 2012 12:57 AM
Subject: [amsat-bb] Re: European Lunar Lander - Call for Declarations
Hi together,
Please also have a look at this document:
http://wsn.spaceflight.esa.int
, June 04, 2012 9:26 AM
Subject: Re: [amsat-bb] Re: European Lunar Lander - Call for Declarations
Thanks folks,
That's a very helpful and constructive discussion. It will certainly allow
for better assessment of the feasibility, options and limitations.
Stefan, VE4NSA
On Sat, Jun 2
Hi all
There is nothing much to do with 20W mean power. Just a 5W pep beacon...
-jari oh3uw
Hi Stefan VE4NSA, Peter DB2OS and folks on BB
It should be very nice to have a transponder on the Lunar Lander operating
into the X/K band 10,5 GHz Uplink and 24 GHz downlink. As on AO40 the
I disagree about having to have a EME class station if we put a
transponder on the moon.
The reason being, since the same side is always facing the earth, a
directional high gain antenna may be used on the transponder itself!
Lee
W5LMM
How big antenna and what band should be used?
probe P5A to Mars,figure out to
place an amateur radio transponder on the Moon.
73 de
i8CVS Domenico
- Original Message -
From: Stefan Wagener
To: i8cvs
Cc: Amsat - BBs
Sent: Thursday, May 31, 2012 4:48 PM
Subject: Re: [amsat-bb] European Lunar Lander - Call
Do you really mean a deplorable antenna?
73 - Keith, W5IU
-Original Message-
From: Robert G Oler orbit...@hotmail.com
To: i8cvs domenico.i8...@tin.it
Cc: Amsat - BBs amsat-bb@amsat.org
Sent: Sat, Jun 2, 2012 1:44 pm
Subject: [amsat-bb] Re: European Lunar Lander - Call for Declarations
- Original Message -
From: Bob- W7LRD w7...@comcast.net
To: STeve Andre' and...@msu.edu
Cc: amsat-bb@amsat.org
Sent: Saturday, June 02, 2012 7:16 AM
Subject: [amsat-bb] Re: European Lunar Lander - Call for Declarations
Just for the fun of it I'd like to see an accurate link budget
: Saturday, June 2, 2012 2:12:26 PM
Subject: [ amsat -bb] Re: European Lunar Lander - Call for Declarations
- Original Message -
From: Bob- W7LRD w7...@comcast.net
To: STeve Andre' andres @ msu . edu
Cc: amsat -bb@ amsat .org
Sent: Saturday, June 02, 2012 7:16 AM
Subject: [ amsat -bb
Check http://www.amsatuk.me.uk/iaru/spreadsheet.htm for a detailed link budget
spreadsheet, with accompanying explanations.
73, art…..
W4ART Arlington VA
On 2-Jun-2012, at 01:16 AM, Bob- W7LRD wrote:
Just for the fun of it I'd like to see an accurate link budget written up.
It is a
Check also this discussion from James Miller, G3RUH:
http://www.amsat.org/amsat/articles/g3ruh/110.html
73s Peter, DB2OS
___
Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join now
Hi together,
Please also have a look at this document:
http://wsn.spaceflight.esa.int/docs/lunarlander/LunarLander_EIDA_CDI_230512.pdf
in particular see point 2.2.2 Communication and 2.2.3:
Visibility of the Earth from the landing site imposes the following
constraint:
• communications shall
That can't be quite right. A gain antenna can be put on the moon but its
half power beam width will be limited by libration. If we put a 2.401 GHz
dish on the thing we could easily stay inside the HPBW and likely not need
much power for a decent signal into a small dish on the earth.
The
should be
possible.
73 de
i8CVS Domenico
- Original Message -
From: Peter Guelzow peter.guel...@kourou.de
To: amsat-bb@amsat.org
Sent: Sunday, June 03, 2012 12:57 AM
Subject: [amsat-bb] Re: European Lunar Lander - Call for Declarations
Hi together,
Please also have a look at this document
Keep in mind that any ham radio transponder on the moon will not be an easy
sat. You will need an EME class station to work it.
If we build a lunar transponder, we can expect to see many, many postings on
Amsat-BB about how Amsat only cares about elite hams and is not interested in
building
Thanks Dan,
Point well taken. Now, keep in mind we can find 1001 reasons why not. On
the other hand, how about reasons to do it? How many times will we ever get
a free ride to the moon surface? At this stage we need to declare our
interest and yes ITAR is a potential problem. However, how about
On 06/01/12 19:54, Daniel Schultz wrote:
Keep in mind that any ham radio transponder on the moon will not be an easy
sat. You will need an EME class station to work it.
If we build a lunar transponder, we can expect to see many, many postings on
Amsat-BB about how Amsat only cares about elite
: STeve Andre' and...@msu.edu
To: amsat-bb@amsat.org
Sent: Friday, June 1, 2012 9:20:35 PM
Subject: [amsat-bb] Re: European Lunar Lander - Call for Declarations
On 06/01/12 19:54, Daniel Schultz wrote:
Keep in mind that any ham radio transponder on the moon will not be an easy
sat. You
Hi Stefan, VE4NSA
It does not make sense to put a transponder on the Moon just for the simple
reason that it's much more, simple and cheap to put it into earth orbit.
73 de
i8CVS Domenico
- Original Message -
From: Stefan Wagener wagen...@gmail.com
To: Amsat - BBs amsat-bb@amsat.org
Yes Domenico,
You are correct. However, that particular ESA proposal is not about putting
it into orbit. It is an opportunity to have a payload placed on the moon.
Once ESA has a proposal to put something into orbit, by all means.
Hope this helps,
Stefan
On Thu, May 31, 2012 at 9:31 AM, i8cvs
an amateur radio transponder on the Moon.
73 de
i8CVS Domenico
- Original Message -
From: Stefan Wagener
To: i8cvs
Cc: Amsat - BBs
Sent: Thursday, May 31, 2012 4:48 PM
Subject: Re: [amsat-bb] European Lunar Lander - Call for Declarations of
Interest
Yes Domenico
...@tin.it
*Cc:* Amsat - BBs amsat-bb@amsat.org
*Sent:* Thursday, May 31, 2012 4:48 PM
*Subject:* Re: [amsat-bb] European Lunar Lander - Call for Declarations
of Interest
Yes Domenico,
You are correct. However, that particular ESA proposal is not about
putting it into orbit. It is an opportunity
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