  In a uniform microresonator, the generation of a broadband Kerr frequency
comb is triggered by Turing patterns. Here, we study a distinctly different
route to initiate the Kerr frequency comb by Faraday ripples. Momentum
conservation is ensured by azimuthal modulation of the cavity dispersion. With
a good agreement with the theoretical analysis, we demonstrate a multispectral
Kerr frequency comb covering telecommunication O, C, L, and 2 {\mu}m bands.
Comb coherence and absence of a subcomb offset are confirmed by cw heterodyne
beat note and amplitude noise spectra measurements. The device can be used for
achieving broadband optical frequency synthesizer and high-capacity coherent
telecommunication.
