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A sample of radio-loud active galactic nuclei (AGN) at 2cm is studied to testthe isotropic distribution of radio sources in the sky and their uniformdistribution in space. The sample is complete flux-density limits of 1.5Jy forpositive declinations and 2Jy for declinations between 0 and -20 degrees. Theactive galactic nuclei sample comprises of 133 members. Application of thetwo-dimensional Kolmogorov-Smirnov test shows that there is no significantdeviation from the isotropic distribution in the sky, while the generalisedV/Vm test shows that the space distribution of AGN is not uniform at highconfidence level (99.9%). This is indicative of a strong positive evolution ofAGN with cosmic epoch implying that AGN (or jet activity phenomena) were morepopulous at high redshifts. It is shown that the evolution depends strongly onluminosity: low-luminosity QSOs show a strong positive evolution, whilehigh-luminosity counterparts do not seem to show any evolution with cosmicepoch.Comment: 2 pages, to be published in the Proceedings of "Multiwavelength AGN  Surveys", Cozumel, Dec 8 - 12, 200

TESTING THE HOMOGENEITY OF BRIGHT RADIO SOURCES AT 15 GHz