21 Dec
2022
21 Dec
'22
1:57 p.m.
Have you contacted AMSAT?
73 leon wa4zlw
On 12/21/2022 12:11 PM, Mark Phillips via 44net wrote:
And don't forget radiation hardening too.
On Wed, Dec 21, 2022 at 11:37 AM Rob PE1CHL via 44net
<44net(a)mailman.ampr.org> wrote:
That sure is an ambitious project... it is much more difficult
than a satellite in earth orbit.
The issue you are facing is that a spot on the moon will receive
sunlight for 14.5 days and then will
be in darkness for 14.5 days. During the sunlit period it will
bake in the sunlight to temperatures
of 120C, during the dark period it will cool down to -150C and below.
It will be required to catch and store energy during the sunlit
days and have enough of it in
batteries to heat the spacecraft to temperatures where it will not
be killed during the nights.
Professionals can fall back to nuclear energy, but that is
unpractical for amateurs.
It will not be easy... Good luck!
Rob
On 12/21/22 16:22, Kazuhiko OHO via 44net wrote:
--
This email has been checked for viruses by Avast antivirus software.
www.avast.com
This may not be very appropriate for the topic
here.
In that case, please turn it off.
The Packet Radio Users' Group in Japan is now planning to install a
repeater or transponder on the moon.
Anyone familiar with space engineering?
Please contact us. We are looking forward to hearing from you.
Best Regaurds,
Kaz - JN1LFD
_______________________________________________
44net mailing list -- 44net(a)mailman.ampr.org
To unsubscribe send an email to 44net-leave(a)mailman.ampr.org
_______________________________________________
44net mailing list --44net(a)mailman.ampr.org
To unsubscribe send an email to44net-leave(a)mailman.ampr.org