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3. Define graph of results
4. Enter spec lines
Table 14-7
Spec Lines: 12.6 GHz Phase Noise and Spurs (Test 2)
Point
Offset Frequency
1
1
2
10
3
100
4
1E3
5
10E3
6
100E3
7
1E6
8
40E6
9
40E6
10
10E3
11
1E3
12
100
The
Spec Lines
from the result table for the offset frequency and the max spec from the
result table for the amplitude. Phase noise specs are entered in order, but the
spurious specs must be entered in reverse order with an extra point at 40
MHz.
5. Set tuning sensitivities to 20 ppm/V
Do this on the reference source and the DUT.
a. Press the
b. Press the
c. Press the
d. If necessary, make the other module active by pressing the
key followed by the
display the module's softkeys.
Test 2 - Phase Noise and Spurs (mW LO)
•
Title: 12.6 GHz carrier with 20 ppm/V tuning.
Amplitude
(Hz)
(dBc/Hz)
+32
–18
–58
–98
–123
–135
–138
–138
–70
–70
–60
–20
is under the results graph definition menu. Use the offsets
softkey.
Ref Chain
softkey.
Tune Sens
softkey.
20 ppm/V
NEXT INSTR
HP 70427A/HP 70428A User's Guide 14-17
Performance Tests
softkey. Press the
MENU
DISPLAY
key to
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