Maybe we can get a transponder on the moon! ;-)
http://www.cnn.com/2006/TECH/space/12/04/moon.base/index.html http://www.spaceref.com/news/viewpr.html?pid=21364
73,
dave N0TGD
At 03:59 PM 12/4/2006 -0800, Dave hartzell wrote:
Maybe we can get a transponder on the moon! ;-)
http://www.cnn.com/2006/TECH/space/12/04/moon.base/index.html http://www.spaceref.com/news/viewpr.html?pid=21364
73,
dave N0TGD
I read that on-line today (other than above links) and thought the same. I would guess if it were promoted as a safety backup to NASA comms and for astronaut personal use comms (like ARISS was done) this may actually have some potential.
However, one must remember the space-loss at 250,000 miles will require minimum antenna/power on both ends. I wonder if use of microwave such as CC-Rider (now called ACP) would work best. Should also work as digital repeater. 73's, Ed - KL7UW ========================================= BP40iq, Nikiski, AK http://www.qsl.net/al7eb Amsat #3212 Modes: V - U - L - S USA Rep. for Dubus Magazine: dubususa@hotmail.com =========================================
True... something like WSJT EME a small, low power XPNDR would relay a signal better than the moon's surface.
It would be fun, and put EME in the hands of more hams....
73s.
On 12/4/06, Edward R. Cole al7eb@acsalaska.net wrote:
However, one must remember the space-loss at 250,000 miles will require minimum antenna/power on both ends. I wonder if use of microwave such as CC-Rider (now called ACP) would work best. Should also work as digital repeater.
With the amount of libration on the moon, what's the maximum antenna gain per band that you can get before it becomes too much of an issue. Perhaps the 75% of the pass is a good model to start with?
73 de Pat --- KA9SCF AMSAT #35741
However, one must remember the space-loss at 250,000 miles will require minimum antenna/power on both ends.
Ahhh...The Moon Ray Project lives on.
----Original Message Follows---- From: "Edward R. Cole" al7eb@acsalaska.net To: Dave hartzell hartzell@gmail.com, amsat-bb@amsat.org Subject: [amsat-bb] Re: Lunar Architecture Moon Base Date: Mon, 04 Dec 2006 18:29:26 -0900
At 03:59 PM 12/4/2006 -0800, Dave hartzell wrote:
Maybe we can get a transponder on the moon! ;-)
http://www.cnn.com/2006/TECH/space/12/04/moon.base/index.html http://www.spaceref.com/news/viewpr.html?pid=21364
73,
dave N0TGD
I read that on-line today (other than above links) and thought the same. I would guess if it were promoted as a safety backup to NASA comms and for astronaut personal use comms (like ARISS was done) this may actually have some potential.
However, one must remember the space-loss at 250,000 miles will require minimum antenna/power on both ends. I wonder if use of microwave such as CC-Rider (now called ACP) would work best. Should also work as digital repeater. 73's, Ed - KL7UW ========================================= BP40iq, Nikiski, AK http://www.qsl.net/al7eb Amsat #3212 Modes: V - U - L - S USA Rep. for Dubus Magazine: dubususa@hotmail.com =========================================
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participants (4)
-
Dave hartzell -
Edward R. Cole -
John Champa -
Patrick Green