If tests are made using the methods described in Annex IX, the immunity test reference levels shall be 48 volts/m for the 150 mm stripline testing method, 12 volts/m for the 800 mm stripline testing method, 60 volts/m for the TEM cell testing method ... At each desired test frequency a level of power shall be fed into the stripline to produce the required field strength in the test area with the ESA under test absent ...