HP 70427A User Manual page 566

Step 5 - Calibrate for AM Noise measurement
Select
prompts, but use the connection diagrams below.
Figure 14-11 AM Noise Measurement Calibration Diagram
Step 6 - Measure AM Noise
When prompted to
the 1 dB step attenuator to the downconverter's SIGNAL input and press the
Proceed
Step 7 - Print a graph and parameter summary
On the HP 3048A controller press the
Table 14-19 Result Table Test 7
Test No. & Description
7. AM Detector Noise Floor
Test 7 - AM Detector Noise Floor (AM NOISE)
and follow the HP 3048A software screen
New Measurement
Remove the calibration spur
softkey.
Carrier Offset
Frequency
(GHz)
600 1 Hz
600 10 Hz
600 100 Hz
600 1 kHz
600 10 kHz
600 100kHz
600 40 MHz
, connect the output of
key and the
SHIFT
Max. Results
Specs. Attach
(dBc) AM-Noise
Plot
–108
–118
–128
–138
–145
–155
–155
HP 70427A/HP 70428A User's Guide 14-55
Performance Tests
softkey.
Hard Copy
Measurement
Uncertainty
(±dB)
2
2
2
2
2
2
4