----- Original Message ----- From: "Edward R. Cole" al7eb@acsalaska.net To: "Jason White" jason@jason.white.name; amsat-bb@amsat.org Sent: Saturday, December 09, 2006 9:37 AM Subject: [amsat-bb] Re: Lunar Architecture Moon Base
Edward R. Cole wrote:
< snip >
My boss set up a ten foot comm dish in his front yard and using a diode mixer with a signal generator as LO, detected the 2-GHz carrier of the orbiter as it circled the Moon. It was fascinating to hear the signal and the Doppler shift as it orbited and lost signal for about 20-min as the orbiter went behind the Moon. That was too small and poor a receiver to recover modulation, so we did not hear any voice.
73's Ed - KL7UW
Hi Ed, KL7UW
Was your boss using or not a low noise preamplifier in front of the diode mixer ?
Tanks and 73" de
i8CVS Domenico