def has_permission(self, request):
        return request.user.is_active and request.user.is_staff
Set Y axis maximum intensity in decibels (i.e. dB value at top of 
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.3/django/contrib/admin/sites.py/AdminSite.has_permission--crossover with--dataset/ETHPy150Open adafruit/FreqShow/model.py/FreqShowModel.set_max_intensity