From time to time I am checking my dish with the sunnoise. First I beam to the sun and later to a quiet part of the sky (you can see where the sky is quiet with the VK3UM EME Planner tool).
Below you can see some results with my old 6.5m dish, measured with a Perseus SDR on a converter for 23cm, without AGC on.
Date: 13. November 2011
Some comparison of solarflux:
Solarflux Sunnoise (dB)
Own Echo at moon distance of 390.000 km (peak):