[amsat-bb] Re: 2.4Ghz satellites and signals ?

Tim Tuck tim.tuck at penrith.net
Tue Jul 22 18:28:40 PDT 2008

i8cvs wrote:

> Depending on the gain of your antenna and the overall Noise Figure of your
> receiving system, you can try to receive the Sun Noise at 2400 MHz
> Using my 4 ft parabolic dish ( gain = 27 dBi ) and my receiving system with
> an overall Noise Figure = 0.98 dB I get actually about a (S+N)/N = 3.5 dB
> of Sun Noise with the actual solar flux of 66 sfu at 2800 MHz
> Receiving Sun Noise tell you if your receiving system is working or not
> according to your antenna and receiver specifications because our calibrated
> noise source at no cost is the Sun.
> By the way a little of Radioastronomy at 2400 MHz is all we can do waiting
> for P3E
> If you are interested on it please let me know.

Hi Domenico,

Thanks for this, I'll have a go at it this weekend. Since its winter down here 
its dark when I leave or arrive home to/from work so I wont see the Sun until then.

I'd like to do a little radio astronomy and I've actually been listening to 
Juptier on 20.1Mhz with SkyPipe so anymore info greatly appreciated.




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