That's an error in translation. The original interview in Polish is dead now, but can be found here[0]. The Polish text mentions UKF, which stands for "ultra krótkie fale" (literally, "ultra-short waves"), and the correct translation to English is VHF, not UHF.

Paging 'idlewords, please fix it :).

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[0] - http://archive.is/7edP8#selection-353.650-353.653