Agilent Technologies E8285A Manual page 189

Performance Tests
Spectrum Analyzer Image Rejection Performance Test 24
e. Set the RF In/Ant field to Ant.
f. Set the Ref Level field to -25 dBm.
g. Set the Span field to 5 kHz.
h. Set the Controls field to Marker.
i. Set the Marker To field to Center Freq.
j. Set the Controls field back to Main.
3. Set the signal generator's frequency and the Test Set's spectrum analyzer center
frequency as shown in the Performance Test Record (PTR) and read the image
response on the spectrum analyzer. The image response is the spectrum
analyzer's marker level (in dBm) minus the signal generator's output level
(minus −20 dBm). (In other words, add 20 dB to the marker level.) Compare
the results to the limits.
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