  Pulse nulling is one of many single pulse phenomena exhibited by radio
pulsars. The broadband nature of this phenomena remained unexplained due to
lack of coordinated observations. We are reporting broadband nulling behaviour
of a well known nulling pulsar PSR B2319+60. The simultaneous observations were
carried out at four different frequencies using the Giant Meterwave Radio
telescope (325 and 610 MHz), the Westerbork Synthesis Radio Telescope (1420
MHz) and the Effelsberg radio telescope (5100 MHz). The nulling fractions were
estimated at all four observed frequencies, which suggest similar degree of
nulling across these frequencies. To comment on the broadband behaviour of
pulse nulling, we calculated the Pearson cross-correlation coefficients for the
occurrence of null and burst pulses between all four frequencies. We conclude
that nulling is largely a broadband phenomenon for this pulsar and it points
towards a global failure of the magnetospheric currents which produces radio
emission at these frequencies.
