Zciitralinstitut fur .\stropliysik dcr Akddciiiic dcr \'i~sciiscliaftcii dcr DDH \Vith 8 figures (licceivcd 1984 August 27) Nuriicl-ical calculations of sprcial cliaractcristics of tlic solar S-coinponciit iiiicrowavc radiation arc ~m s c i i t c d on tllc biisis of rccciit suiisliot and p1:igc ~iioclcls. Quantitative rcsiilts arc discusscd a i i t l can h used for tlic plasiiia diagiiostics of solar nctiw regions Ly CUIIIparisons witli obscrvatioiis with high spatial aiid spcctral rcsolution. 'Hit possibility of generalized applications to maglietic stars and stcllar activity is briefly noted. 1-5 wcl-dcii Ikgebiiissc nunicrischcr Hcclinuiigcn fur spezicllc E~iiissioiisparaiiictcr tler solarcn S-Iiunipoiic~itcii-,\Lik~o~~ellc~i~tral~lu~i~ auf tlcr Griiiidlagc physikaliscli vcrciiihcitlicliter Flecken-und Fackclniodcllc angcgcbcn. Qu;iiititativc Auss;igcn kxziiglicli rauiiilichcr uiid spcktralcr Vcrtciliingcii yon Hclligkcit und E'olarisationsjirad hi vcrscliicdcncn Migtictfcltlcrn wcrdcii diskiiticrt und siiid ciiisctel~ar fur die I'lasiiiadiaSiiostik solarcr akti.cr Rcgioncii durcll Vcrglcicli niit llcul~nclitungc~i hiiircichciirl holicr spcktraler untl \Vinkclauf-Die Md;liclikcit vcrallgeiiiciiicrtcr Aii~rcndungcn auf iiiagiietisclic Stcriic .uiicl stcllarc .\ktivitiit ist kurz cr\r.;iliiit. lijsu11g.