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Performance Tests
Test 9 - AM Noise and Spurs (RF)
Enter the spec lines
Table 14-24
Spec Lines: 12.6 GHz (Test 9)
Point
1
2
3
4
7
8
7
8
9
10
11
The
Spec Lines
offsets from the result table for the offset frequency and the max spec from
the result table for the amplitude. AM noise specs are entered in order, but
the spurious specs must be entered in reverse order with an extra point at 40
MHz.
Step 2 - Configure the DUT
1. Make sure the DUT is the active MMS module (ACT indicator lit):
a. Press the
b. Press the
lights.
2. Press the
14-70 HP 70427A/HP 70428A User's Guide
•
Minimum Y coordinate: –170
•
Maximum Y coordinate: 0
•
Horizontal portion of display to be used: 100%
•
Vertical portion of display to be used: 100%
•
Graph type: AM Noise (dBc/Hz)
Offset Frequency
(Hz)
1
10
100
1E3
10E3
100E3
1E6
40E6
40E6
1E3
100
softkey is under the results graph definition menu. Use the
key.
DISPLAY
softkey until the DUT's ACT indicator
NEXT INSTR
key.
INSTR PRESET
Amplitude
(dBc/Hz)
– 92
– 102
– 109
– 125
– 135
– 145
– 147
– 147
– 70
– 70
– 50
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