Agilent Technologies 4395A, Service Manual

Page: 39 / 343

Figure 2-2. Source Lev el Accuracy T est Setup
3.
Press 4
Meas
5,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
ANALYZER TYPE ,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
NETWORK ANALYZER , 4
Preset
5 to initialize the 4395A. Then set
the con trols as follo ws:
Con trol Settings Key Strok es
Cen ter F requency: 50 MHz 4
Center
5, 4
5
5, 4
0
5, 4
M/
5
F requency Span: 0 Hz
4
Span
5,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
ZERO SPAN
The source p o w er no w is set to 0 dBm (preset v alue).
4. Source Lev el Accuracy T est
a. W ait for the p o w er meter reading to settle.
b. Record the p o w er meter reading in the p erformance test record (\T est Result" column
for the lev el accuracy test).
5. Source Lev el Flatness T est (High F requencies)
a. Record the test result of the lev el accuracy test in the calculation sheet (\Po w er Meter
Reading [ref ]" column for the lev el atness test).
b. Press 4
Center
5, 4
1
5, 4
M/
5 to c hange the 4395A cen ter frequency to the rst atness
test frequency 1 MHz listed in T able 2-1. T able 2-1 lists atness test p oints for high
frequencies.
P erformance T ests 2-5