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HP 70427A/HP 70428A User’s Guide
Downconverter Operation
AM Noise Measurement (IF AM Detector) User Control
4. Repeat from step 1 until the reading on the
AM Det Voltage:
display
doesn’t change from one reading to the next.
5. If necessary, increment/decrement the calibration source’s output power.
6. Repeat steps 1 through 4 to read the detector’s output at the new power.
7. Repeat steps 1 through 5 until the calibration source’s detector voltage is
within ±5% of the DUT’s detector voltage.
Step 9 - Run the calibration
Modulate the calibration source as follows:
•
Type: AM
•
Depth: 10%
•
Frequency: 1 kHz
Step 10 - Proceed with the measurement
Re-connect the DUT to the downconverter’s
SIGNAL
input, retune the
downconverters to the DUT’s output frequency, and proceed with the
measurement.
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 ...