  A comparison of the galaxy pairwise velocity distribution functions
determined from the three largest publicly available galaxy redshift surveys is
presented. This is the first direct comparison of this function across these
surveys using an identical method. It is found that the two r-band selected
surveys, the LCRS (Las Campanas Redshift Survey) and the SDSS (Sloan Digital
Sky Survey), are in excellent agreement with 363 +/- 44 km/sec and 357 +/- 17
km/sec respectively. The b-band selected 2dF survey gives slightly lower
results with 331 +/- 19 km/sec. This difference is expected given the sampling
biases in the different surveys although it is not highly significant. These
results and analysis of subsets of data indicate that the method is stable to
singular features in each survey such as the prevalence of rich clusters. The
technique utilizes a Fourier-space deconvolution of the redshift-space
distortions in the correlation function in the sigma(rp)-pi basis, which has
been previously described. This method returns the entire distribution function
rather than just the second moment. In all cases the distribution function is
well-characterized by an exponential.
