  We propose here an experiment aimed to determine whether there are
superconducting pairing fluctuations in the pseudogap regime of the high-$T_c$
materials. In the experimental setup, two samples above $T_c$ are brought into
contact at a single point and the differential AC conductivity in the presence
of a constant applied bias voltage between the samples, $V$, should be
measured. We argue the the pairing fluctuations will produce randomly
fluctuating Josephson current with zero mean, however the current-current
correlator will have a characteristic frequency given by Josephson frequency
$\omega_J = 2 e V /\hbar$. We predict that the differential AC conductivity
should have a peak at the Josephson frequency with the width determined by the
phase fluctuations time.
