![background image](http://html.mh-extra.com/html/hp/70427a/70427a_user-manual_157664566.webp)
HP 70427A/HP 70428A User’s Guide
14-55
Performance Tests
Test 7 - AM Detector Noise Floor (AM NOISE)
Step 5 - Calibrate for AM Noise measurement
Select
New Measurement
and follow the HP 3048A software screen
prompts, but use the connection diagrams below.
Figure 14-11
AM Noise Measurement Calibration Diagram
Step 6 - Measure AM Noise
When prompted to
Remove the calibration spur
, connect the output of
the 1 dB step attenuator to the downconverter’s
SIGNAL
input and press the
Proceed
softkey.
Step 7 - Print a graph and parameter summary
On the HP 3048A controller press the
SHIFT
key and the
Hard Copy
softkey.
Table 14-19
Result Table Test 7
Test No. & Description
C
arrier
Frequency
(GHz)
Offset
Max.
Specs.
(dBc)
Results
Attach
AM-Noise
Plot
Measurement
Uncertainty
(±dB)
7. AM Detector Noise Floor
600
1 Hz
–108
2
600
10 Hz
–118
2
600
100 Hz
–128
2
600
1 kHz
–138
2
600
10 kHz
–145
2
600
100kHz
–155
2
600
40 MHz
–155
4
Summary of Contents for 70427A
Page 11: ...x HP 70427A HP 70428A User s Guide Declaration of Conformity ...
Page 13: ... xii HP 70427A HP 70428A User s Guide Typeface Conventions ...
Page 243: ...9 42 HP 70427A HP 70428A User s Guide Technical Data HP 70428A Option 002 Specifications ...
Page 299: ...10 56 HP 70427A HP 70428A User s Guide Softkeys and Displays IF Figure 10 42 μW Mode HP70472A ...
Page 385: ...10 142 HP 70427A HP 70428A User s Guide Softkeys and Displays YTF Cal ...
Page 435: ...12 14 HP 70427A HP 70428A User s Guide Remote Programming Commands ...
Page 607: ...15 10 HP 70427A HP 70428A User s Guide Adjustments 10 MHz Oscillator Adjustment ...
Page 611: ...16 4 HP 70427A HP 70428A User s Guide Customer Support ...