def check_azimuth(radar, refl_field_name="DBZ"):
    """
    Checking if radar has a proper reflectivity field.  It's a minor problem
    concerning a few days in 2011 for CPOL.

    Parameters:
    ===========
        radar:
            Py-ART radar structure.
        refl_field_name: str
            Name of the reflectivity field.

    Return:
    =======
        True if radar has a proper azimuth field.
    """
    if radar.fields[refl_field_name]["data"].shape[0] < 360:
        return False

    return True