2 Jun
2012
2 Jun
'12
5:55 a.m.
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? Please calculate the best combination here:
http://www.changpuak.ch/electronics/calc_10.php
Note that you need about -120dBm signal to be heard in receiver. The path is about 400000km (240000 miles).
-jari oh3uw ;-)