Keysight M9360A, Service Manual, Page: 35 / 43

Performance Verification Tests
Table 5
Parameter Value
Continuous Sweep Yes
Center Frequency M9360A Center Frequency
Input Attenuation 10 dB (preset value)
Span 130 MHz
Sweep Time 10 ms
Sweep Points 1001
Reference Level -40 dBm
Scale 3 dB/div
Trace Max Hold
9. Turn on the RF OUTPUT of the signal source.
Table 6 - Test Points
Parameter Value
RF Center Frequency
2.8 GHz
3.1 GHz
10 GHz
20 GHz
26.45 GHz
Lower 3 dB Point Measurement
1. Wait until at least one source sweep has finished and the filter shape is present on the screen of the signal
analyzer.
2. Turn on Marker 1 and set it to the Center Frequency of the signal analyzer.
3. Set the
Marker Type
as
Delta
.
4. Move the marker to the left until the marker delta observed is just less than 3 dB.
a. Record the marker amplitude as y
1
.
b. Record the marker frequency as x
1
.
NOTE : The marker must be one marker step away from the above 3 dB point and the marker delta
should be less than 3 dB.
5. Move the marker to the left one step.
a. Record the marker amplitude as y
2
.
b. Record the marker frequency as x
2
.
6. Calculate the lower 3 dB point frequency, x (assuming amplitude of y = -3 dB).
34 Agilent M9360A PXI Attenuator/Preselector Service Guide