  We give the basic elements of the Floquet scattering matrix approach to the
dynamic quantum transport in mesoscopic and nanoscopic conductors. We use the
scattering formalism to discuss the noise power spectrum of a single electron
source working in the adiabatic regime and emitting particles into a chiral
electron waveguide. The noise power is found to be quadratic at low frequencies
and exponentially suppressed at high frequencies.
