  We show the results of microsecond resolution radio data analysis focused on
flux measurements of single pulses of PSR B1133+16. The data were recorded at
4.85 GHz and 8.35 GHz with 0.5 GHz and 1.1 GHz bandwidth, respectively, using
Radio Telescope Effelsberg (MPIfR). The most important conclusion of the
analysis is, that the strongest single pulse emission at 4.85 GHz and 8.35 GHz
contributes almost exclusively to the trailing part of the leading component of
the pulsar mean profile, whereas studies at lower frequencies report that the
contribution is spread almost uniformly covering all phases of the pulsar mean
profile. We also estimate the radio emission heights to be around 1%--2% of the
light cylinder radius which is in agreement with previous studies. Additionally
these observations allowed us to add two more measurements of the flux density
to the PSR B1133+16 broadband radio spectrum covering frequencies from 16.7 MHz
up to 32 GHz. We fit two different models to the spectrum: the broken power law
and the spectrum based on flicker noise model, which represents the spectrum in
a simpler but similarly accurate way.
