  We report on observations of giant pulses from the Crab pulsar performed
simultaneously with the Parkes radio telescope and the incoherent combination
of the Murchison Widefield Array (MWA) antenna tiles. The observations were
performed over a duration of approximately one hour at a center frequency of
1382 MHz with 340 MHz bandwidth at Parkes, and at a center frequency of 193 MHz
with 15 MHz bandwidth at the MWA. Our analysis has led to the detection of 55
giant pulses at the MWA and 2075 at Parkes above a threshold of 3.5$\sigma$ and
6.5$\sigma$ respectively. We detected 51$\%$ of the MWA giant pulses at the
Parkes radio telescope, with spectral indices in the range of $-3.6>\alpha>
-4.9$ ($S_{\rm \nu} \propto \nu^\alpha$). We present a Monte Carlo analysis
supporting the conjecture that the giant pulse emission in the Crab is
intrinsically broadband, the less than $100\%$ correlation being due to the
relative sensitivities of the two instruments and the width of the spectral
index distribution. Our observations are consistent with the hypothesis that
the spectral index of giant pulses is drawn from normal distribution of
standard deviation 0.6, but with a mean that displays an evolution with
frequency from -3.00 at 1382 MHz, to -2.85 at 192 MHz.
