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The SAB6456 is a prescaler for UHF/VHF tuners.
The circuit has an input frequency range of 70 MHz to 1 GHz,
has high input sensitivity and good harmonic suppression.
With lower sensitivity it's usable down to 3 MHz.
Opseg merenje je od 70-1000mhz a moze da meri i od 3mhz ali mu je osetljivost manja na tako maloj frekvenciji.
Ovako sam ja to shvatio iz teksta...