  Discussion about the nature of zebra-structure (ZS) in the type IV radio
bursts continues, despite the ten proposed models. First of all, this is due to
the wide variety of stripes in each new phenomenon, when the explanation of all
the fine details by any one mechanism becomes impossible. The most widespread
explanation is the emission at different levels of double plasma resonance
(DPR), sequential on the height surfaces in the magnetic trap, where the upper
hybrid frequency ($\omega_{UH}$) becomes equal to the integer of electronic
cyclotron 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 the
interaction of plasma waves with the whistlers: $l + w \Rightarrow t$ (Chernov,
1976, 2006). Here, we will show the possibility of explaining the main features
of the zebra stripes in the model with whistlers, using the example of the
phenomenon on August 1, 2010.
