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
Just for the sake of conversation and thinking. What would the link budget look like for a transponder on the moon.
Bob W7LRD
----- Original Message -----
From: "R Oler" orbitjet@hotmail.com To: "Amsat BB" amsat-bb@amsat.org 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@amsat.org. 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
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@comcast.net To: orbitjet@hotmail.com CC: amsat-bb@amsat.org 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@hotmail.com To: "Amsat BB" amsat-bb@amsat.org 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@amsat.org. 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
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@hotmail.com To: w7lrd@comcast.net CC: amsat-bb@amsat.org 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@comcast.net To: orbitjet@hotmail.com CC: amsat-bb@amsat.org 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@hotmail.com To: "Amsat BB" amsat-bb@amsat.org 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@amsat.org. 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
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@hotmail.com To: w7lrd@comcast.net CC: amsat-bb@amsat.org 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@comcast.net To: orbitjet@hotmail.com CC: amsat-bb@amsat.org 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@hotmail.com To: "Amsat BB" amsat-bb@amsat.org 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@gmail.com ======================================
----- Original Message ----- From: "R Oler" orbitjet@hotmail.com To: w7lrd@comcast.net Cc: "Amsat BB" amsat-bb@amsat.org 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
I don't see why Hams couldn't be involved in the design of the communications for the probe...
On Nov 5, 2011, at 11:11 AM, R Oler orbitjet@hotmail.com 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@hotmail.com To: w7lrd@comcast.net CC: amsat-bb@amsat.org 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@comcast.net To: orbitjet@hotmail.com CC: amsat-bb@amsat.org 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@hotmail.com To: "Amsat BB" amsat-bb@amsat.org 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@amsat.org. 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@amsat.org. 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
participants (5)
-
Bob- W7LRD -
Edward R. Cole -
i8cvs -
Lee Maisel -
R Oler