b) Adjust the spectrum analyzer to give a maximum indication with afrequency scan width of 500 kHz.c) Remove any modulation from the interfering test signal source.d) Set the frequency of the interfering test signal source to within 50 kHz to100 kHz above the frequency of the transmitter under test. The frequencyshall be chosen in such a way that the intermodulation components to bemeasured do not coincide with other spurious components.e) Adjust the power output of the interfering test signal source to equal thecarrier power level of the transmitter under test. This is the power level thatwas measured in 2.2.1.f) Record the largest third order intermodulation component from thespectrum analyzer as ILVL .g) Record the transmitter under test carrier power level from the spectrumanalyzer as CLVL .h) Calculate the intermodulation attenuation as:Intermodulation attenuation = CLVL - ILVLi) Set the frequency of the interfering test signal source to within 50 kHz to100 kHz below the frequency of the transmitter under test. The frequencyshall be chosen in such a way that the intermodulation components to bemeasured do not coincide with other spurious components.j) Repeat steps e) through h).k) The lesser of the values recorded in steps h) and j) is the intermodulationattenuation.