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Discussion about the nature of zebra-structure (ZS) in the type IV radiobursts continues, despite the ten proposed models. First of all, this is due tothe wide variety of stripes in each new phenomenon, when the explanation of allthe fine details by any one mechanism becomes impossible. The most widespreadexplanation is the emission at different levels of double plasma resonance(DPR), sequential on the height surfaces in the magnetic trap, where the upperhybrid frequency ($\omega_{UH}$) becomes equal to the integer of electroniccyclotron harmonics $s\omega_{Be}: \omega_{UH} = (\omega_{Pe}^2 +\omega_{Be}^2)^{1/2} = s\omega_{Be}$ (Zheleznyakov, Zlotnik, 1975, Winglee,Dulk, 1986, Kuznetsov & Tsap (2007)). An important alternative mechanism is theinteraction of plasma waves with the whistlers: $l + w \Rightarrow t$ (Chernov,1976, 2006). Here, we will show the possibility of explaining the main featuresof the zebra stripes in the model with whistlers, using the example of thephenomenon on August 1, 2010.

Comparison of alternative zebra-structure models in solar radio emission