Black holes are claimed to radiate at a temperature corresponding to the hawking radiation. But who is measuring the temperature? If the radiation is measured from far away the red shift will indicate a lower temperature won't it? Is the temperature given by the formula as measured from a hypothetical probe suspended at the event horizon? If so, will the proper acceleration of the probe experience unruh radiation too, or in this case would they be one and the same thing(unruh and hawking radiation)?