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Old June 2nd 08, 06:50 PM posted to uk.sci.astronomy
Martin Brown
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Default amatuer radio astronomy

Jan Lustrup wrote:
I have a 1.2 meter offset sat dish and a 0.2dB LNB head.
So far all i get is the sun (at +9dB) and the moon (at +0.7dB). These
mesuarments are refered to quite sky.
Ground noise is 5dB.


Can I expect to get anything else? Or must I get a larger antenna?

The moon noise can be seen he http://home.no.net/jhhl/egne/moon.pdf


If I have read the page right and you are getting a lunar signal at
1.3GHz then there is a sporting chance you will also detect Cass A which
I think is about the same brightness, slightly fainter are Cygnus A,
Crab Nebula and Orion Nebula. SARA may have some guidance on this.

YOu should also see the galactic centre.

What is a bit puzzling is that the sun isn't brighter. I'd have expected
it to be aprrox 100x (20dB) stronger than the moon. AGC somewhere?

Regards,
Martin Brown
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