Chapter 4 159
ESA Functional Tests
Second Harmonic Spurious Responses
ESA Functional Tests
3. Press System, Power On/Preset, Preset Type (Factory), Preset on the analyzer. Wait for the
preset routine to finish.
Set the analyzer by pressing the following keys:
FREQUENCY, Center Freq, 40, MHz
SPAN, 1, MHz
AMPLITUDE, –10, dBm (50 Ω Input only)
AMPLITUDE, 44, dBmV (75 Ω Input only)
Attenuation (Man), 10, dB
BW/Avg, Res BW, 30, kHz
4. Adjust the synthesized sweeper power level to place the peak of the signal at the
reference level.
5. Set the analyzer by pressing the following keys:
SPAN, 50, kHz
BW/Avg, Res BW, 1, kHz
Video BW, 100, Hz
6. Wait for two sweeps to finish, then press the following analyz er keys:
Peak Search
Mkr →
Mkr → CF Step
Marker, Delta
FREQUENCY
7. Press the ⇑ key on the analyzer to step to the second harmonic (at 80MHz). Press
Peak Search. The marker delta amplitude reading should be less than the Maximum
value listed in the Test Limits Table.